31 results on '"Gie Liem"'
Search Results
2. Physicochemical properties and microbial safety of reduced‐sugar chocolate‐flavored milk
- Author
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Dipendra Kumar Mahato, Snehal R. Jadhav, Agnes Ruramai Mukurumbira, Russell Keast, Djin Gie Liem, Rohan Shah, and Shirani Gamlath
- Subjects
General Chemical Engineering ,General Chemistry ,Food Science - Published
- 2022
3. Testing the validity of immersive eating environments against laboratory and real life settings
- Author
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Kathryn Colla, Russell Keast, Mohammadreza Mohebbi, Catherine G. Russell, and Djin Gie Liem
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Nutrition and Dietetics ,Food Science - Published
- 2023
4. Supersize me. Serving carrots whole versus diced influences children’s consumption
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Catherine Georgina Russell and Djin Gie Liem
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Consumption (economics) ,0303 health sciences ,Food intake ,Nutrition and Dietetics ,Snacking ,030309 nutrition & dietetics ,business.industry ,Sensory-specific satiety ,food and beverages ,04 agricultural and veterinary sciences ,Portion size ,Real life setting ,040401 food science ,Toxicology ,03 medical and health sciences ,0404 agricultural biotechnology ,Medicine ,business ,Food Science - Abstract
Children in Australia and similar countries consume low amounts of vegetables. The present study investigated if children’s carrot consumption can be heightened by providing whole vs diced carrots in a real life setting. Children (n = 60, 25 males, ages 8.6 ± 1.6 yrs.) watched a 90-min movie on two different occasions, while randomly being served 1000 g of diced carrots on one occasion and whole carrots on the other occasion. Consumption, hunger and taste liking were measured at the start, 10 min and 90 min after the consumption period started. Overall, the consumption of whole carrots (median intake: 39 g after 10 min) was significantly higher (Z = −2.4, p = 0.02), than the consumption of diced carrots (median intake: 26 g after 10 min), and trended towards being higher after 90 min (median intake whole: 126 g, median intake diced: 66 g, z = −1.7, p = 0.08). The majority of children (67%) consumed more whole than diced carrots with the increase in consumption being on average 75% greater when carrots were presented whole as opposed to diced. Although liking of carrots was significantly correlated with consumption (diced: r = 0.63, p The present study suggests that serving carrots whole, rather than diced could be a promising strategy to increase children’s vegetable consumption in a snacking occasion.
- Published
- 2019
5. Identifying ideal product composition of chocolate-flavored milk using preference mapping
- Author
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Mohammadreza Mohebbi, Russell Keast, Catherine Georgina Russell, Penelope Oliver, M.M. Chayan Mahmud, Dipendra Kumar Mahato, Shirani Gamlath, Djin Gie Liem, and Sara Cicerale
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Adult ,Male ,030309 nutrition & dietetics ,Carbohydrates ,Sensation ,Added sugar ,Sensory analysis ,03 medical and health sciences ,Mouthfeel ,Young Adult ,0404 agricultural biotechnology ,food ,Animals ,Cluster Analysis ,Humans ,Food science ,Chocolate ,Sugar ,Flavor ,Mathematics ,0303 health sciences ,Principal Component Analysis ,business.industry ,food and beverages ,04 agricultural and veterinary sciences ,Consumer Behavior ,Middle Aged ,040401 food science ,food.food ,Flavoring Agents ,Milk ,Sweetening Agents ,Taste ,Chocolate milk ,Food processing ,Composition (visual arts) ,Female ,business ,Energy Intake ,Sugars ,Food Science - Abstract
The World Health Organization (WHO) recommends cutting down added sugar in processed foods and beverages. There is a growing concern for increased calorie intake from added sugar in flavored milk. To understand how to effectively reduce added sugar in flavored milk, the influence of other nutritional components such as percentage of fat, protein, and salt need to be accounted for as they are the determinants for color, flavor and mouthfeel attributes that ultimately influence consumer liking. Therefore, this study aims to identify the ideal product composition of commercial chocolate flavored milk samples and to link the existing variations to consumers' liking data using External Preference Mapping (EPM). Thirty-four commercial chocolate milk samples systematically varying in compositional profile (sugar, fat, protein, salt, stabilizer and sweetener) were analysed by Principal Component Analysis (PCA) with a subset of 10 chocolate milk samples varying in product composition (fat, protein, salt and sugar) selected for consumer evaluation. Consumers (n = 235) evaluated these 10 chocolate milk samples for overall liking using a 9-point hedonic scale. Significant differences (p
- Published
- 2021
6. Sugar Reduction in Dairy Food: An Overview with Flavoured Milk as an Example
- Author
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Russell Keast, Djin Gie Liem, Shirani Gamlath, Dipendra Kumar Mahato, Sara Cicerale, and Catherine Georgina Russell
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Health (social science) ,Sucrose ,Plant Science ,Sensory profile ,Review ,monk fruit ,Added sugar ,lcsh:Chemical technology ,Health Professions (miscellaneous) ,Microbiology ,World health ,chemistry.chemical_compound ,stevia ,lcsh:TP1-1185 ,Sugar ,sweeteners ,chemistry.chemical_classification ,sugar reduction strategies ,business.industry ,digestive, oral, and skin physiology ,food and beverages ,Sweetness ,Reducing sugar ,Biotechnology ,flavoured milk ,chemistry ,Food processing ,business ,Food Science - Abstract
Owing to the public health concern associated with the consumption of added sugar, the World Health Organization recommends cutting down sugar in processed foods. Furthermore, due to the growing concern of increased calorie intake from added sugar in sweetened dairy foods, the present review provides an overview of different types and functions of sugar, various sugar reduction strategies, and current trends in the use of sweeteners for sugar reduction in dairy food, taking flavoured milk as a central theme where possible to explore the aforementioned aspects. The strength and uniqueness of this review are that it brings together all the information on the available types of sugar and sugar reduction strategies and explores the current trends that could be applied for reducing sugar in dairy foods without much impact on consumer acceptance. Among different strategies for sugar reduction, the use of natural non-nutritive sweeteners (NNSs), has received much attention due to consumer demand for natural ingredients. Sweetness imparted by sugar can be replaced by natural NNSs, however, sugar provides more than just sweetness to flavoured milk. Sugar reduction involves multiple technical challenges to maintain the sensory properties of the product, as well as to maintain consumer acceptance. Because no single sugar has a sensory profile that matches sucrose, the use of two or more natural NNSs could be an option for food industries to reduce sugar using a holistic approach rather than a single sugar reduction strategy. Therefore, achieving even a small sugar reduction can significantly improve the diet and health of an individual.
- Published
- 2020
7. Using an online photo based questionnaire to predict tasted liking and amount sampled of familiar and unfamiliar foods by female nutrition students
- Author
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Russell Keast, Kathryn Colla, Isabella E Hartley, and Djin Gie Liem
- Subjects
Psychology ,Sensory Systems ,Food Science - Published
- 2020
8. Consumer Acceptance of Brown and White Rice Varieties
- Author
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Tanweer Aslam Gondal, Snehal R. Jadhav, Mohammadreza Mohebbi, Russell Keast, Robert A. Shellie, Djin Gie Liem, and Shirani Gamlath
- Subjects
Just About Right scale ,Health (social science) ,Population ,sensory ,TP1-1185 ,Plant Science ,Health Professions (miscellaneous) ,Microbiology ,Article ,white rice ,education ,consumer acceptance ,Aroma ,Mathematics ,education.field_of_study ,biology ,Chemical technology ,food and beverages ,Staple food ,brown rice ,biology.organism_classification ,penalty analysis ,Horticulture ,Chewiness ,JAR ,White rice ,Brown rice ,Food Science - Abstract
Rice is consumed as a staple food by more than half of the world’s population. Due to a higher fibre and micronutrient content, brown rice is more nutritious than white rice, but the consumption of brown rice is significantly lower than that of white rice, primarily due to sensory attributes. Therefore, the present research aimed to identify the sensory attributes which drive liking of Australian-grown brown and white rice varieties. Participants (n = 139) tasted and scored (9-point hedonic scale) their liking (i.e., overall liking, aroma, colour and texture) of brown and white rice types of Jasmine (Kyeema), Low GI (Doongara) and Medium grain rice (Amaroo). In addition, participants scored, aroma, colour, hardness, fluffiness, stickiness and chewiness, on Just About Right Scales. A within-subjects crossover design with randomised order (William’s Latin Square design) was used with six repeated samples for liking and Just About Right scales. Penalty analyses were applied to determine the relative influence of perception of sensory attributes on consumer liking of the rice varieties. Across all varieties, white rice was liked more than brown rice due to texture and colour, and Jasmine rice was preferred over Low GI and Medium Grain. Rice texture (hardness and chewiness) was the most important sensory attribute among all rice varieties and aroma was important for driving of liking between white rice varieties.
- Published
- 2021
9. The Influence of Taste Liking on the Consumption of Nutrient Rich and Nutrient Poor Foods
- Author
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Djin Gie Liem and Catherine Georgina Russell
- Subjects
0301 basic medicine ,Taste ,Endocrinology, Diabetes and Metabolism ,030209 endocrinology & metabolism ,lcsh:TX341-641 ,Review ,sensory ,Affect (psychology) ,Nutrient density ,taste ,03 medical and health sciences ,Mouthfeel ,0302 clinical medicine ,Nutrient ,Environmental health ,Food choice ,medicine ,030109 nutrition & dietetics ,Nutrition and Dietetics ,food ,digestive, oral, and skin physiology ,consumer ,medicine.disease ,Obesity ,Preference ,nutrition ,Psychology ,lcsh:Nutrition. Foods and food supply ,Food Science - Abstract
Repeated consumption of high-energy nutrient poor foods can lead to undesirable health outcomes such as obesity. Taste plays an important role in food choice, and a better understanding of the links between the taste of foods, individual taste preferences, food choices, and intakes will aid in our understanding of why some people might select and consume unhealthy foods. The present review focuses on three main questions: (1) do nutrient poor and nutrient rich foods significantly differ in taste profile? (2) are humans predisposed toward developing a liking or preference for certain taste profiles? (3) how are individual variations in liking of the basic taste qualities related to long term food intake and adverse health outcomes such as obesity? Results indicated that nutrient poor foods were likely to be sweet, salty and fatty mouthfeel, while the taste profiles of nutrient rich foods were diverse. Although humans are born with a universal liking for sweet and aversion for bitter taste, large individual differences exist in liking of all the basic taste qualities. These individual differences partly explain differences in short term intakes of foods varying in taste profiles. However they fail to sufficiently explain long term food choices and negative health outcomes such as obesity. Future studies should focus on how the full sensory profile of food which includes taste, smell and texture interacts with individual characteristics (e.g., taste or health motivations, taste preferences) to affect consumption of nutrient rich and nutrient poor foods.
- Published
- 2019
10. Preference mapping of different water-to-rice ratios in cooked aromatic white jasmine rice
- Author
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Clinton Maleki, Gie Liem, Russell Keast, Penelope Oliver, and Simone Lewin
- Subjects
030309 nutrition & dietetics ,Agglomerative hierarchical clustering ,External preference mapping ,03 medical and health sciences ,0404 agricultural biotechnology ,Humans ,Food science ,Cooking ,Flavor ,Aroma ,Mathematics ,0303 health sciences ,biology ,Preference mapping ,Australia ,food and beverages ,Water ,Oryza ,04 agricultural and veterinary sciences ,Consumer Behavior ,biology.organism_classification ,040401 food science ,Preference ,Chewiness ,Taste ,Odorants ,Food Science - Abstract
The volume of water is a key variable affecting texture and flavor attributes of cooked rice with a significant influence on consumer preference. The aim of this study was to determine the attributes driving consumer preference for rice cooked with different water-to-rice ratios. Descriptive analysis (DA) methodology was employed to profile aromatic white Jasmine rice and a consumer study was run to determine preference for water-to-rice ratios. A DA panel (n = 12) evaluated ten aroma, four taste and flavor, three texture, and six appearance attributes for aromatic white Jasmine rice cooked with four water-to-rice ratios (1.125:1, 1.5:1, 1.875:1, and 2.25:1). Rice consumers (n = 117) evaluated preferences of the same aromatic white Jasmine rice cooked with the aforementioned water-to-rice ratios. DA results revealed floral aroma, firmness, chewiness, coarseness, stickiness/cohesiveness, and fluffiness were significantly influenced by an increasing water-to-rice ratio. There was no significant effect of water-to-rice ratios on consumer preferences (χ2 (3, 117) = 1.17; P = 0.76). Consumers were grouped into three clusters with similar preference patterns using agglomerative hierarchical clustering. External preference mapping techniques run on each consumer cluster determined the water-to-rice ratios 1.125:1 and 1.875:1 as having the largest appeal to heavy consumers of rice, split by preferences for fluffy or sticky cooked rice. The water-to-rice ratio 1.5:1 was not dominated by any single attribute or group of attributes, appealing to less frequent rice consumers. Therefore, the water-to-rice ratios 1.125:1, 1.5:1, and 1.875:1 should satisfy the broadest groups of Australian rice consumers. PRACTICAL APPLICATION: Rice, a high volume commodity can be cooked using a variety of methods and volumes of water. The findings of this research will help manufacturers market water-to-rice ratios, assisting consumers in identifying cooked rice for which they have a preference.
- Published
- 2019
11. The Response of More Health Focused and Less Health Focused People to a Physical Activity Calorie Equivalent Label on Discretionary Snack Foods
- Author
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Claudia Hartley, Russell Keast, and Djin Gie Liem
- Subjects
0301 basic medicine ,Adult ,Male ,liking ,Calorie ,labelling ,Physical activity ,lcsh:TX341-641 ,Sample (statistics) ,Snack food ,Article ,discretionary snack foods ,03 medical and health sciences ,Food Preferences ,Young Adult ,0302 clinical medicine ,Food Labeling ,Labelling ,Environmental health ,Statistical significance ,Surveys and Questionnaires ,Humans ,030212 general & internal medicine ,consumption ,Exercise ,Pace ,Consumption (economics) ,PACE labelling ,030109 nutrition & dietetics ,Nutrition and Dietetics ,Data Collection ,Middle Aged ,health consciousness ,Female ,health focus ,Snacks ,Psychology ,Energy Intake ,lcsh:Nutrition. Foods and food supply ,Food Science - Abstract
A Physical Activity Calorie Equivalent (PACE) label shows the minutes of physical activity required to burn off the caloric content of a particular food. This study investigated the influence of PACE labelling on liking and consumption of discretionary snack foods in a group of more health focused and less health focused consumers. Participants (n = 97) tasted and rated (i.e., liking, prospective consumption) a range of snack foods with or without a PACE label. Total sampling consumption was also measured. Participants completed a shortened version of the International Physical Activity Questionnaire and the General Health Interest Scale questionnaire. Paired samples t-test, independent samples t-tests, a General Linear Model and Chi-Square tests were used to check for statistical significance. For more health focused participants (n = 57), the PACE label decreased only liking (p = 0.02). The PACE label was not effective in reducing liking (p = 0.49), prospective consumption (defined as the amount of the sample participants thought that they could consume) (p = 0.10) or consumption (p = 0.41) of energy-dense discretionary snack foods for less health focused individuals (n = 40). The level of participants&rsquo, physical activity did not facilitate the influence of PACE labelling on liking, consumption or prospective consumption. The PACE label was found to not be effective among less health focused individuals or the overall sample population. Therefore, the PACE label may not be an effective labelling strategy to reduce the liking or consumption of discretionary snack foods.
- Published
- 2019
12. Umami as an 'Alimentary' Taste. A New Perspective on Taste Classification
- Author
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Djin Gie Liem, Russell Keast, and Isabella E Hartley
- Subjects
0301 basic medicine ,Food intake ,Taste ,media_common.quotation_subject ,lcsh:TX341-641 ,Umami ,Review ,Choice Behavior ,taste ,03 medical and health sciences ,Food Preferences ,basic tastes ,stomatognathic system ,Taste receptor ,Perception ,Humans ,media_common ,Cognitive science ,taste reception ,030109 nutrition & dietetics ,Nutrition and Dietetics ,Perspective (graphical) ,Taste Perception ,NUTRITION&DIETETICS ,Taste Buds ,umami ,Diet ,Glutamyl-valyl-glycine ,030104 developmental biology ,Food ,Psychology ,lcsh:Nutrition. Foods and food supply ,Food Science - Abstract
Applied taste research is increasingly focusing on the relationship with diet and health, and understanding the role the sense of taste plays in encouraging or discouraging consumption. The concept of basic tastes dates as far back 3000 years, where perception dominated classification with sweet, sour, salty, and bitter consistently featuring on basic taste lists throughout history. Advances in molecular biology and the recent discovery of taste receptors and ligands has increased the basic taste list to include umami and fat taste. There is potential for a plethora of other new basic tastes pending the discovery of taste receptors and ligands. Due to the possibility for an ever-growing list of basic tastes it is pertinent to critically evaluate whether new tastes, including umami, are suitably positioned with the four classic basic tastes (sweet, sour, salty, and bitter). The review critically examines the evidence that umami, and by inference other new tastes, fulfils the criteria for a basic taste, and proposes a subclass named ‘alimentary’ for tastes not meeting basic criteria.
- Published
- 2018
13. Assessing Food Liking: Comparison of Food Liking Questionnaires and Direct Food Tasting in Two Cultures
- Author
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Mohammadreza Mohebbi, Uracha Wanich, Lynette Riddell, Russell Keast, Susie Macfarlane, Dhoungsiri Sayompark, Sara Cicerale, and Djin Gie Liem
- Subjects
0301 basic medicine ,Adult ,Male ,Adolescent ,Large population ,lcsh:TX341-641 ,sensory ,Sensory analysis ,Article ,Cohort Studies ,03 medical and health sciences ,Food Preferences ,Young Adult ,cross-cultural ,Environmental health ,Surveys and Questionnaires ,Humans ,030109 nutrition & dietetics ,Nutrition and Dietetics ,questionnaire ,digestive, oral, and skin physiology ,fungi ,Australia ,food and beverages ,NUTRITION&DIETETICS ,Thailand ,Diet ,food liking ,Female ,Wine tasting ,Psychology ,Soft drink ,lcsh:Nutrition. Foods and food supply ,Food Science ,hedonic - Abstract
Food liking can be directly measured in specialised sensory testing facilities, however, this method is not feasible for large population samples. The aim of the study was to compare a Food Liking Questionnaire (FLQ) against lab-based sensory testing in two countries. The study was conducted with 70 Australian and Thai participants (35 Australian, 35 Thai, mean (SD) age 19 (3.01) years, 51% men). Participants completed a FLQ (consisting of 73 food items Australia, 89 Thai) and then, after tasting the food, rated their liking of a selection of 10 commercially available food items using a nine-point hedonic scale. Both tasks were completed on the same day and were repeated one week later. The reliability of and a comparison between methods was determined using Intra-Class Correlation Coefficients (ICC), and the difference was assessed using an independent sample t-test. The results indicate that the test-retest reliability of FLQ and the laboratory-based liking assessment range was moderate (0.40&ndash, 0.59) to excellent (0.75&ndash, 1.00). There were significant differences for the FLQ and the laboratory-based liking assessment between countries for three food items: soft drink, instant vegetable soup, and broccoli (p <, 0.01). However, the data produced from the FLQ reflects the laboratory-based liking assessment. Therefore, it provides representative liking data in large population-based studies including cross-cultural studies.
- Published
- 2018
14. Addition of a visual cue to rice increases perceived flavour intensity but not liking
- Author
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Lily Hartley, Djin Gie Liem, and Catherine Georgina Russell
- Subjects
0303 health sciences ,Health consequences ,030309 nutrition & dietetics ,Flavour ,Oryza ,04 agricultural and veterinary sciences ,040401 food science ,Preference ,Intensity (physics) ,Flavoring Agents ,Toxicology ,Food Preferences ,03 medical and health sciences ,0404 agricultural biotechnology ,Multi sensory ,Taste ,Humans ,Cues ,Psychology ,Food Science - Abstract
Rice is a common staple for about 50% of the world population. Sodium based ingredients such as table salt (NaCl) and mono-sodium glutamate (MSG) are often added to rice to increase flavour intensity and subsequent liking. Due to negative health consequences of excessive NaCl consumption and negative consumer perception of MSG, alternative strategies to increase perceived flavour intensity of rice are needed. As such, the present research aimed to investigate the effect of a visual product cue on perceived flavour intensity and liking of rice. In a within-subject, randomised design, 151 participants tasted six different rice samples (i.e., with and without a visual cue, at 0%, 0.05% and 0.1% MSG concentrations). Next, they rated perceived flavour intensity (rank-order and general labelled magnitude scale measures), liking (9-point hedonic scale) and preference (rank-order), over two sessions separated by one week. Across all MSG concentrations, the presence of the visual cue significantly increased reported perceived flavour intensity. No effect of the visual cue on liking nor preference were found. In conclusion, a visual product cue increased perceived flavour intensity of rice, but not liking or preference.
- Published
- 2021
15. Short communication: Influence of labeling on Australian and Chinese consumers’ liking of milk with short (pasteurized) and long (UHT) shelf life
- Author
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Russell Keast, Xiaokai Hu, Djin Gie Liem, and Dieuwerke P. Bolhuis
- Subjects
Male ,0301 basic medicine ,China ,Taste ,Food Handling ,Pasteurization ,Shelf life ,law.invention ,Food Preferences ,03 medical and health sciences ,fluids and secretions ,0404 agricultural biotechnology ,Milk products ,Food Labeling ,law ,Genetics ,Animals ,Humans ,Medicine ,Food science ,Sensory ,030109 nutrition & dietetics ,business.industry ,Australia ,food and beverages ,Cross-cultural ,04 agricultural and veterinary sciences ,Consumer Behavior ,Consumer ,040401 food science ,Milk ,Cattle ,Female ,Animal Science and Zoology ,Liking ,business ,Food Science - Abstract
Sixty percent of milk consumed in China has a long shelf life (UHT), presumably because milk with a short shelf life (pasteurized) is comparatively expensive. This in contrast to Australia, where 10% of consumed milk is UHT and the price between UHT and pasteurized milk is equivalent. Whether UHT is actually more liked than pasteurized milk by Chinese consumers is unknown. However, the potential positive halo around the expensive pasteurized milk might result in Chinese consumers liking milk more when it is labeled as "short shelf-life milk." To test these hypotheses, Chinese ( n = 48, 20 males, 28 females, 23 ± 7.2 yr) and Australian ( n = 93, 11 males, 82 females, 24 ± 5.6 yr) consumers tasted and rated (9-point hedonic scale), in a randomized order, 3 × 30-mL samples of UHT milk (labeled as "long shelf-life milk," "short shelf-life milk," or "milk") and 3 × 30-mL samples of pasteurized milk (also labeled as "long shelf-life milk," "short shelf-life milk," or "milk"). Australian participants' liking of milk was not influenced by labeling. Regardless of what the label stated, they always preferred the taste of pasteurized milk over the taste of UHT milk. This was different for Chinese participants, who preferred the taste of UHT milk over the taste of pasteurized milk, but in general had a higher liking for any milk that was labeled "short shelf-life milk." Both Australian and Chinese were more positive about pasteurized than UHT milk. In conclusion, Chinese, but not Australian, consumers' liking of milk was guided by the positive expectations of pasteurized milk and the negative expectations of UHT milk. Further research is needed to investigate if the present findings can be extrapolated to a larger and more varied group of Chinese and Australian consumers.
- Published
- 2016
16. Can games change children’s eating behaviour? A review of gamification and serious games
- Author
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Maria Papavasileiou, Reisya Rizki Riantiningtyas, Gie Liem, Mie Bojer Kanstrup, Annemarie Olsen, and Ching Yue Chow
- Subjects
0303 health sciences ,Nutrition and Dietetics ,Snacking ,030309 nutrition & dietetics ,digestive, oral, and skin physiology ,Scopus ,Psychological intervention ,Context (language use) ,Novel food ,04 agricultural and veterinary sciences ,PsycINFO ,040401 food science ,Developmental psychology ,03 medical and health sciences ,0404 agricultural biotechnology ,Narrative ,Eating behaviour ,Psychology ,human activities ,Food Science - Abstract
Gamification and serious games have increasingly been used in dietary interventions for children. This review evaluates these game-based interventions by examining the following questions: Can game-based approaches change children’s eating behaviour (positively or negatively)? If yes, what game elements are characterised among the effective interventions? and, What are the potentials of applying game-based approaches to improve children’s eating behaviour? Medline (Ovid), Scopus and PSYCINFO were used to identify experimental studies. Forty-three studies, including video or physical games and gamification, were identified and presented in four topics according to the study aim and eating behaviour target: 1) increase fruit and vegetable intake, 2) modify snacking behaviour, 3) encourage food exploration, and 4) promote healthy eating. Both gamifications and serious games can enhance children’s fruit and vegetable intake, and promote healthy eating behaviour by improving their nutritional knowledge and attitudes. They may also encourage children’s food exploration to increase novel food acceptance and reduce picky eating behaviour. However, playing snack-promoting games (advergames) significantly increases children’s subsequent snack intake, and profound effects were found for unhealthy snacks. As game elements, rewards were repeatedly used across studies to incentivise behaviour change. The combination of narrative context, feedback, progress and challenge was frequently used to motivate and engage children to establish healthy eating behaviour. In conclusion, game-based interventions have potential for increasing fruit and vegetable intake and educating children about healthy eating. Further research is needed to examine long-term effects and the underlying mechanisms for behavioural change.
- Published
- 2020
17. Infants’ and Children’s Salt Taste Perception and Liking: A Review
- Author
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Djin Gie Liem
- Subjects
0301 basic medicine ,Taste ,Food intake ,Food Handling ,Sodium ,media_common.quotation_subject ,Emotions ,Salt (chemistry) ,chemistry.chemical_element ,lcsh:TX341-641 ,Review ,sensory ,taste ,03 medical and health sciences ,Eating ,Food Preferences ,0302 clinical medicine ,foods ,children ,Perception ,smell ,Medicine ,Humans ,salt ,030212 general & internal medicine ,Food science ,Sodium Chloride, Dietary ,Child ,development ,media_common ,chemistry.chemical_classification ,030109 nutrition & dietetics ,Nutrition and Dietetics ,business.industry ,digestive, oral, and skin physiology ,Infant ,Taste Perception ,Diet ,Plain water ,nutrition ,chemistry ,Wine tasting ,Snacks ,Essential nutrient ,business ,intake ,lcsh:Nutrition. Foods and food supply ,Food Analysis ,Food Science - Abstract
Sodium is an essential nutrient for the human body. It is widely used as sodium chloride (table salt) in (processed) foods and overconsumed by both children and adults, placing them at risk for adverse health effects such as high blood pressure and cardiovascular diseases. The current review focusses on the development of salt taste sensitivity and preferences, and its association with food intake. Three -to- four month old infants are able to detect and prefer sodium chloride solutions over plain water, which is thought to be a biological unlearned response. Liking for water with sodium chloride mostly decreases when infants enter early childhood, but liking for sodium chloride in appropriate food contexts such as soup and snack foods remains high. The increased acceptance and preference of sodium chloride rich foods coincides with infants' exposure to salty foods, and is therefore thought to be mostly a learned response. Children prefer higher salt concentrations than adults, but seem to be equally sensitive to salt taste. The addition of salt to foods increases children's consumption of those foods. However, children's liking for salt taste as such does not seem to correlate with children's consumption of salty foods. Decreasing the exposure to salty tasting foods during early infancy is recommended. Salt plays an important role in children's liking for a variety of foods. It is, however, questionable if children's liking for salt per se influences the intake of salty foods.
- Published
- 2017
18. An Investigation of Sensory Specific Satiety and Food Size When Children Consume a Whole or Diced Vegetable
- Author
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Catherine Georgina Russell, Djin Gie Liem, and Jasmine R Goh
- Subjects
0301 basic medicine ,liking ,Taste ,Health (social science) ,sensory specific satiety ,Sensory-specific satiety ,Plant Science ,lcsh:Chemical technology ,Health Professions (miscellaneous) ,Microbiology ,Article ,taste ,03 medical and health sciences ,children ,vegetable ,Medicine ,lcsh:TP1-1185 ,consumption ,Health and development ,Food science ,carrot ,Consumption (economics) ,unit bias ,Meal ,030109 nutrition & dietetics ,business.industry ,food and beverages ,variety ,business ,Food Science - Abstract
Children’s vegetable consumption is often lower than that needed to promote optimal health and development, and practical approaches for increasing vegetable consumption are needed. Sensory Specific Satiety (SSS) reduces the liking and consumption of a consumed food over the course of an eating occasion and is an important factor in meal termination. The present study aimed to investigate the development of SSS when children ate vegetables of different sizes. The absence of SSS would be an encouraging sign to provide children more vegetables during a meal. Seventy-two children (33 boys, ages 8.8 ± 1.5 years) were recruited from Australian primary schools. Participating children consumed either whole or diced carrots for a maximum period of 10-min from a 500 g box. Cucumber was used as a control vegetable. Children’s liking of carrots and cucumber was measured with a 5-point child friendly hedonic scale prior to and after carrot consumption. In comparison to cucumber, liking for neither diced (p = 0.57) nor whole carrots (p = 0.18) changed during ad libitum consumption of carrots, indicating that SSS did not occur. However, children (n = 36) who finished eating carrots within the 10-min time limit, spent more time eating the whole carrots compared to the diced carrots (p < 0.05), which tended to result in a higher consumption of whole carrots (p < 0.06). This suggests that, in order to increase vegetable consumption, it is better to present children whole carrots than diced carrots. These findings might aid in the development of strategies to promote children’s greater vegetable consumption.
- Published
- 2017
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19. Taste and Smell
- Author
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Julie A. Mennella, Nuala Bobowski, and Djin Gie Liem
- Subjects
Taste ,Food science ,Psychology - Published
- 2017
20. Salt Preference and Ability to Discriminate between Salt Content of Two Commercially Available Products of Australian Primary Schoolchildren
- Author
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Madeline West, Alison Booth, Carley A. Grimes, Djin Gie Liem, and Caryl A. Nowson
- Subjects
Male ,0301 basic medicine ,Taste ,Salt content ,Salt (chemistry) ,lcsh:TX341-641 ,Sodium Chloride ,Biology ,Article ,taste ,Food Preferences ,03 medical and health sciences ,0302 clinical medicine ,McNemar's test ,children ,medicine ,Humans ,salt ,030212 general & internal medicine ,Food science ,Sodium Chloride, Dietary ,Child ,chemistry.chemical_classification ,030109 nutrition & dietetics ,Nutrition and Dietetics ,Australia ,Taste Perception ,Mean age ,NUTRITION&DIETETICS ,medicine.disease ,Obesity ,Preference ,chemistry ,Female ,food preference ,lcsh:Nutrition. Foods and food supply ,Food Science - Abstract
Australian children consume too much salt, primarily from processed foods where salt is often used to enhance flavour. Few studies have assessed children&rsquo, s salt preference in commercially available foods. This study aims to assess (1) children&rsquo, s preference and ability to discriminate between salt levels in two commercially available foods and (2) if preference or ability to discriminate between salt levels changes after an education program. Chips and corn flakes were tasted at three levels of salt concentration. Children ranked which they liked best (preference) and which was saltiest (ability to discriminate). The proportion of children across categorical responses was assessed (Chi squared and McNemar&rsquo, s test) together with changes in preference and ability to discriminate between salt levels from timepoint 1 (T1) to timepoint 2 (T2). Ninety-two children (57% female, mean age 9.1 years (SD 0.8)) participated. At T1 approximately one-half and two-thirds of children preferred the highest salt chip and cornflake, respectively, (both p <, 0.05). Fifty-seven percent and 63% of children identified the highest level of salt in chips and cornflakes as the saltiest, respectively. Preference and ability to discriminate between salt levels were unchanged between timepoints. Results support product reformulation to decrease salt content of foods provided to children.
- Published
- 2019
21. Effects of health labels on expected and actual taste perception of soup
- Author
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Elizabeth H. Zandstra, Djin Gie Liem, and N. Toraman Aydin
- Subjects
Taste ,Nutrition and Dietetics ,Taste quality ,business.industry ,media_common.quotation_subject ,Potential effect ,Mean age ,Advertising ,Taste intensity ,Healthy food ,Perception ,Medicine ,business ,Consumer behaviour ,Food Science ,media_common - Abstract
Health labels such as “reduced in salt” or the “healthy choices” logo aim to facilitate consumers’ healthy food choices. However, they may act as a warning sign for those consumers who are more worried about the taste of the products, rather than healthiness. This study assessed the potential effect of front-of-pack health labels on consumers’ expectations and actual perceived taste quality of a chicken soup. Participants ranging from 19 to 67 years of age (28 females, 18 males, mean age 45.3 ± 13.7 years) were invited to come to a central location to taste a variety of soups. Consumers tasted the same soup with different labels (e.g. now reduced in salt, healthy choices-tick logo) in a within-subjects design. Before and after consumers tasted the soup, they were asked to rate liking, saltiness, and desire to consume the soup. The results suggest that consumers expected the salt taste intensity (P This study suggests that labels which notify consumers of a reduction in salt may have an adverse effect on consumers’ expectation and potentially on the actual perceived taste of products.
- Published
- 2012
22. Health labelling can influence taste perception and use of table salt for reduced-sodium products
- Author
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Elizabeth H. Zandstra, Fatemeh Miremadi, Russell Keast, and Djin Gie Liem
- Subjects
Adult ,Male ,Taste ,media_common.quotation_subject ,Sodium ,Medicine (miscellaneous) ,chemistry.chemical_element ,Health Promotion ,Affect (psychology) ,Food Preferences ,Young Adult ,Food Labeling ,Labelling ,Perception ,Humans ,Medicine ,Food science ,Sodium Chloride, Dietary ,Salt intake ,media_common ,Nutrition and Dietetics ,business.industry ,Salt reduction ,Public Health, Environmental and Occupational Health ,Taste Perception ,Consumer Behavior ,Diet, Sodium-Restricted ,Middle Aged ,chemistry ,Female ,Wine tasting ,business - Abstract
ObjectiveTo investigate the effect of front-of-pack labels on taste perception and use of table salt for currently available and sodium-reduced soups.DesignWithin-subject design.SettingSensory laboratory.SubjectsParticipants (n 50, mean age 34·8 (sd 13·6) years) were randomly served nine soups (250 ml each) across 3 d. Servings differed in: (i) health label (i.e. no health label, reduced-salt label or Heart Foundation Tick); and (ii) sodium reduction (no reduction – benchmark, 15 % less sodium or 30 % less sodium). Before tasting, participants rated their expected salt intensity and liking. After tasting, participants rated their perceived salt intensity and liking, after which they could add salt to the soup to make it more palatable.ResultsReduced-salt labels generated a negative taste expectation and actual taste experience in terms of liking (P < 0·05) and perceived saltiness (P < 0·05). Perceived saltiness of sodium-reduced soups decreased more (P < 0·05), and consumers added more salt (P < 0·05), when soups carried the reduced-salt label. The tick logo and soups without health labels had no such influence on taste perception.ConclusionsEmphasizing salt reduction by means of a front-of-pack label can have a negative effect on taste perception and salt use, especially when consumers are able to taste differences between their regular soup and the sodium-reduced soup. Overall health logos which do not emphasize the reduction in salt are less likely to affect perceived salt intensity and therefore are viable solutions to indicate the healthiness of sodium-reduced products.
- Published
- 2012
23. Reducing Sodium in Foods: The Effect on Flavor
- Author
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Russell Keast, Fatemeh Miremadi, and Djin Gie Liem
- Subjects
Taste ,Food Handling ,Sodium ,chemistry.chemical_element ,Flavoring Agents ,lcsh:TX341-641 ,Review ,sensory ,Humans ,Palatability ,Food science ,Sodium Chloride, Dietary ,Flavor ,Nutrition and Dietetics ,flavor ,Chemistry ,business.industry ,digestive, oral, and skin physiology ,Taste Perception ,food and beverages ,Diet, Sodium-Restricted ,Sweetness ,Micronutrient ,Trace Elements ,salt taste ,Food processing ,business ,lcsh:Nutrition. Foods and food supply ,Food Science - Abstract
Sodium is an essential micronutrient and, via salt taste, appetitive. High consumption of sodium is, however, related to negative health effects such as hypertension, cardiovascular diseases and stroke. In industrialized countries, about 75% of sodium in the diet comes from manufactured foods and foods eaten away from home. Reducing sodium in processed foods will be, however, challenging due to sodium’s specific functionality in terms of flavor and associated palatability of foods (i.e., increase of saltiness, reduction of bitterness, enhancement of sweetness and other congruent flavors). The current review discusses the sensory role of sodium in food, determinants of salt taste perception and a variety of strategies, such as sodium replacers (i.e., potassium salts) and gradual reduction of sodium, to decrease sodium in processed foods while maintaining palatability.
- Published
- 2011
24. Motivating instructions increases children’s sensory sensitivity
- Author
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Elizabeth H. Zandstra and Djin Gie Liem
- Subjects
Nutrition and Dietetics ,Sensory sensitivity ,media_common.quotation_subject ,language.human_language ,Test (assessment) ,German ,Sensory tests ,Perception ,language ,Intrinsic motivation ,Psychology ,Social psychology ,Food Science ,media_common - Abstract
Aim To determine the impact of competitive and cooperative instructions on children’s motivation and performance of sensory tests. Subjects and methods German children ( n = 202; 101 girls, 101 boys, 6–9 year-olds) participated in liking and similarity tests after giving either (1) competitive: “I want to see if you can do it better than others”, (2) cooperative: “Would you like to help me”, (3) competitive–cooperative: “Would you like to help me to be better than the other group”, or (4) neutral instructions: “Could you perform this test”. Furthermore, they were asked questions about their motivation. Results Competitive–cooperative instructions were associated high intrinsic motivation ( p p p Conclusion German children’s sensory sensitivity can be increase by giving competitive–cooperative instructions. This is likely to be associated with a high intrinsic motivation.
- Published
- 2010
25. Strategies to Reduce Sodium Consumption: A Food Industry Perspective
- Author
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Gert W. Meijer, Mariska Dötsch, Johanneke Busch, Max Batenburg, Gie Liem, Rudi Mueller, and Erwin Tareilus
- Subjects
Consumption (economics) ,Taste ,High prevalence ,Food industry ,Food Handling ,business.industry ,Emerging technologies ,Sodium ,chemistry.chemical_element ,Sodium, Dietary ,Health Promotion ,General Medicine ,Environmental economics ,Industrial and Manufacturing Engineering ,World health ,Food Supply ,Biotechnology ,Sodium intake ,chemistry ,Food Industry ,Food Technology ,Humans ,Medicine ,business ,Food Science - Abstract
The global high prevalence of hypertension and cardiovascular disease has raised concerns regarding the sodium content of the foods which we consume. Over 75% of sodium intake in industrialized diets is likely to come from processed and restaurant foods. Therefore international authorities, such as the World Health Organisation, are encouraging the food industry to reduce sodium levels in their products. Significant sodium reduction is not without complications as salt plays an important role in taste, and in some products is needed also for preservation and processing. The most promising sodium reduction strategy is to adapt the preference of consumers for saltiness by reducing sodium in products in small steps. However, this is a time-consuming approach that needs to be applied industry-wide in order to be effective. Therefore the food industry is also investigating solutions that will maintain the same perceived salt intensity at lower sodium levels. Each of these has specific advantages, disadvantages, and time lines for implementation. Currently applied approaches are resulting in sodium reduction between 20-30%. Further reduction will require new technologies. Research into the physiology of taste perception and salt receptors is an emerging area of science that is needed in order to achieve larger sodium reductions.
- Published
- 2009
26. Consistency of sensory testing with 4- and 5-year-old children
- Author
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Cees de Graaf, Monica Mars, and Djin Gie Liem
- Subjects
medicine.medical_specialty ,media_common.quotation_subject ,Audiology ,perception ,Developmental psychology ,taste mixtures ,pleasantness ,Consistency (statistics) ,Perception ,medicine ,adults ,Cognitive skill ,Young adult ,humans ,media_common ,VLAG ,childhood ,sour preferences ,Global Nutrition ,Wereldvoeding ,Nutrition and Dietetics ,Contrast (statistics) ,sensitivity ,Preference ,Term (time) ,El Niño ,Psychology ,sweet ,Food Science ,food preferences - Abstract
Rank-order and paired comparison tests are widely used methods to assess previous termsensorynext term perception of young children. Small age differences could, however, influence the ability of children to carry out such tasks. This study compared rank-order and paired comparison tests for previous termconsistencynext term in previous term4next term- and 5-year-old children. During previous termfournext term sessions, 22 young adults, 21 previous term4next term-year-old and 47 5-year-old children carried out rank-order and paired comparison tests to measure discriminatory ability (0.22 M, 0.25 M, 0.29 M, 0.34 M, 0.39 M sucrose in orangeade) and preference (0.14 M, 0.20 M, 0.29 M, 0.42 M, 0.61 M sucrose in orangeade). Young adults and 5-year-old children were able to discriminate between all solutions and showed a high previous termconsistencynext term between the rank-order and pair-wise tests for discriminatory ability (>76% previous termconsistency)next term and preference (>71% previous termconsistency)next term. In contrast, previous term4next term-year-olds detected differences in sweetness during the preference tests, but failed to distinguish sweetness intensities during the discriminatory ability tests. It is concluded that the dissimilarity between previous term4next term-and 5-year-olds in performing previous termsensorynext term tests was due to a difference in their cognitive skills rather than their previous termsensorynext term perceptual differences.
- Published
- 2004
27. Chocolate and Children’s Food and Flavor Preferences
- Author
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Janet E. Standen-Holmes and Djin Gie Liem
- Subjects
Taste ,Food choice ,Energy density ,Food science ,Flavor preferences ,Psychology ,Developmental psychology - Abstract
Chocolate is ranked among children’s favorite foods in the West and increasingly in other societies. Children’s chocolate preferences appear to be more diverse than adults’. Chocolate of the sort generally marketed to children contains approximately 30% fat and up to 45% sugar, giving it a very high energy density (2,200 Kj/100 g) likely to engender satiety, making it likely that children will acquire a taste for it without difficulty. Taste preferences are mostly learned through repeated exposure, but overexposure can lead to decreased liking, even for chocolate. Severe parental restriction of sweet foods may increase children’s liking and desire for them, which can lead to increased consumption when parents are absent.
- Published
- 2012
28. The influence of sodium on liking and consumption of salty food
- Author
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Susie Whitelock, Lynn Riddell, Russell Keast, Lisa Lucas, and Gie Liem
- Subjects
Adult ,Male ,Taste ,Salt content ,Adolescent ,Sodium ,Sensation ,chemistry.chemical_element ,Plant Roots ,Food Preferences ,Young Adult ,Dietary Sodium ,Surveys and Questionnaires ,Humans ,Taste Threshold ,Food science ,Solanum tuberosum ,Salty food ,Osmolar Concentration ,Australia ,Reproducibility of Results ,Taste Perception ,Sodium, Dietary ,Diet, Sodium-Restricted ,Middle Aged ,Diet ,Taste intensity ,chemistry ,Female ,Food Science - Abstract
Excessive sodium (Na) intake has been linked to development of hypertension and related pathologies. In this study, we assessed if the sodium chloride (NaCl) concentration in a prototypical food influences the liking and intake of that food. In study 1, detection and recognition thresholds for NaCl were assessed, and perceived salt intensity and liking for hash browns of varying sodium concentrations (40 mg, 120 mg, 170 mg, and 220 mg Na/100 g) were compared in a lab setting. In study 2, detection and recognition thresholds for NaCl were assessed in a lab setting, and lunches consisting of hash browns, basic salad, and beverages were consumed freely in a dining setting on 4 separate occasions. Intake and liking ratings for hash browns were recorded after the lunch. In both studies, detection and recognition thresholds for NaCl were not associated with perceived saltiness, liking, or intake of hash browns. Liking and perceived salt taste intensity of hash browns were correlated (r = 0.547 P0.01), and in study 1 the 220 mg sodium hash brown was most liked (P0.05). In study 2, there was no association between Na concentration and liking or consumption of hash browns. In summary, liking of hash browns were influenced by whether testing was in a lab or dining room environment. In a dining room environment, large decreases (50%) of sodium content of food were achievable with only minor decrease in liking and no effect on consumption of the food.
- Published
- 2011
29. Sweet and Sour Preferences During Childhood: Role of Early Experiences
- Author
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Djin Gie Liem and Julie A. Mennella
- Subjects
Male ,Taste ,Time Factors ,Protein Hydrolysates ,Added sugar ,Hydrolysate ,Article ,Citric Acid ,Beverages ,Behavioral Neuroscience ,Food Preferences ,Developmental Neuroscience ,stomatognathic system ,Dietary Sucrose ,Developmental and Educational Psychology ,Medicine ,Animals ,Humans ,Food science ,Sugar ,Child ,Analysis of Variance ,business.industry ,digestive, oral, and skin physiology ,food and beverages ,Infant ,Flavor preferences ,Sweetness ,Milk ,Odor ,Child, Preschool ,Female ,Infant Food ,business ,Formula fed ,Developmental Biology - Abstract
We investigated the effects of early experience on sweet and sour preferences in children. Eighty-three children were divided into four groups based on the type of formula fed during infancy and age. By using a forced-choice, sip-and-swallow procedure, we determined the level of sweetness and sourness preferred in juice. Children who were fed protein hydrolysate formulas, which have a distinctive sour and bitter taste and unpleasant odor, preferred higher levels of citric acid in juice when compared to older children who were fed similar formulas. No such difference was observed between the groups for sweet preference. However, the level of sweetness preferred in juice was related to the sugar content of the child's favorite cereal and whether the mother routinely added sugar to their foods. These data illustrate the wide variety of experiential factors that can influence flavor preferences during childhood.
- Published
- 2002
30. The Effect of Sugar-Free Versus Sugar-Sweetened Beverages on Satiety, Liking and Wanting: An 18 Month Randomized Double-Blind Trial in Children
- Author
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Martijn B. Katan, Margreet R. Olthof, Lothar D. J. Kuijper, Djin Gie Liem, Janne C. de Ruyter, Nutrition and Health, Methodology and Applied Biostatistics, and EMGO+ - Lifestyle, Overweight and Diabetes
- Subjects
Male ,medicine.medical_specialty ,Time Factors ,Calorie ,lcsh:Medicine ,Satiety Response ,Childhood obesity ,law.invention ,Beverages ,Double-Blind Method ,Randomized controlled trial ,law ,Internal medicine ,medicine ,Humans ,Food science ,Child ,lcsh:Science ,Multidisciplinary ,business.industry ,lcsh:R ,Odds ratio ,medicine.disease ,Confidence interval ,Adipose Tissue ,Child, Preschool ,Sweetening Agents ,Female ,Food Additives ,lcsh:Q ,Wine tasting ,medicine.symptom ,business ,Weight gain ,Research Article - Abstract
Background Substituting sugar-free for sugar-sweetened beverages reduces weight gain. A possible explanation is that sugar-containing and sugar-free beverages cause the same degree of satiety. However, this has not been tested in long-term trials. Methods We randomized 203 children aged 7-11 years to receive 250 mL per day of an artificially sweetened sugar-free beverage or a similarly looking and tasting sugar-sweetened beverage. We measured satiety on a 5-point scale by questionnaire at 0, 6, 12 and 18 months. We calculated the change in satiety from before intake to 1 minute after intake and 15 minutes after intake. We then calculated the odds ratio that satiety increased by 1 point in the sugar-group versus the sugar-free group. We also investigated how much the children liked and wanted the beverages. Results 146 children or 72% completed the study. We found no statistically significant difference in satiety between the sugar-free and sugar-sweetened group; the adjusted odds ratio for a 1 point increase in satiety in the sugar group versus the sugar-free group was 0.77 at 1 minute (95% confidence interval, 0.46 to 1.29), and 1.44 at 15 minutes after intake (95% CI, 0.86 to 2.40). The sugar-group liked and wanted their beverage slightly more than the sugar-free group, adjusted odds ratio 1.63 (95% CI 1.05 to 2.54) and 1.65 (95% CI 1.07 to 2.55), respectively. Conclusions Sugar-sweetened and sugar-free beverages produced similar satiety. Therefore when children are given sugar-free instead of sugar-containing drinks they might not make up the missing calories from other sources. This may explain our previous observation that children in the sugar-free group accumulated less body fat than those in the sugar group. Trial Registration ClinicalTrials.gov NCT00893529 http://clinicaltrials.gov/show/NCT00893529
- Published
- 2013
31. Sensory and Marketing - partners for life.
- Author
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Gie Liem
- Subjects
- *
FOOD industry , *CONSUMER science , *FOOD studies (Education) , *FOOD science , *FOOD industry quality control - Abstract
The article offers information on the 10th Annual Australia & New Zealand Sensory & Consumer Science Symposium was held in Sydney, Australia in February 2016. It reports that at the event roles of sensory departments and marketing groups in new product development involved in quality assurance were discussed.
- Published
- 2016
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