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The influences of inulin on pasting, textural, and rheological properties of sweet potato starch (SPS) were explored. Subsequently, the interactions between inulin and SPS were analyzed. Results showed that inulin could make the pasting temperature increase and all viscosity parameters of SPS-inulin blends decline. With the increased inulin, SPS gel hardness decreased; while both springiness and resilience first increased and then decreased, and reached to the maximum at an addition level of 5%. SPS-inulin blends paste displayed a pseudoplastic and shear-thinning property. Results of dynamic viscoelasticity indicated that inulin improved liquid-like characteristics of SPS-inulin blends pastes, and temperature of G' Max, G"Max increased with the increase in inulin. Additionally, the swelling of SPS granules was obviously inhibited by inulin, and granules were mostly concentrated in the smaller. Inulin also greatly decreased the leached amylose content (p < 0.05). The interaction between SPS and inulin was the hydrogen bond. [ABSTRACT FROM AUTHOR]

The present study was to investigate the effects of administrating bromelain, inulin, or a mixture of these ingredients on different fecal parameters in a rat model. Our results showed that taking bromelain (120 CDU/kg body weight) apparently increased fecal moisture by 18% and declined fecal mucinase activity (−36.3%). The incorporation of inulin (260 mg/kg body weight) could also result in some desirable changes including increased fecal moisture by 19%, declined fecal mucinase activity (−43.9%). The feeding of same amounts of bromelain and inulin could lead to significant increases in the presumptive counts of Bifidobacterium and Lactobacilli as well as the concentrations of various fecal short chain fatty acids (by 54-95%). This study suggested that the consumption of bromelain and inulin together might exert favorable effects in improving certain fecal parameters, and provide more hints for the development of functional food formulations. [ABSTRACT FROM AUTHOR]

This contribution looks at the possibility of replacing acid-thinned corn starch by chicory inulin as gelling coagents in gummy jellies made with gelatin. A creamy gel could be formed after stirring (70°C/10 min) an inulin water solution (240 g kg−1) without previous cooking. Starch replacement by inulin (90 g kg−1 raw mass) in jellies provided a slightly softer, springier and stickier texture, enhanced strawberry, sweet and sour flavors, and hardly affected the red color. Inulin/Oligosaccharides remained without be degraded to free sugars in jellies after processing (mixing at 80°C and pH 3.2 for 5 min and further drying at 30% relative humidity and 25°C for 24 h). Therefore, chicory inulin acted as stable and neutral flavoring ingredient and can be used as gelling coagent to develop gummy jellies enriched in dietary fiber with potential prebiotic activity. [ABSTRACT FROM AUTHOR]

The purpose of this work was to determine the possibility of using high-oleic sunflower oil for the production of biscuits. Additives (inulin, β-glucan, lecithin) were introduced into the formulation to improve the quality and nutritional properties of products. Additives had a positive impact on the volume growth of products with oil, although the effect was lower than of biscuits with shortening. The breaking strength of biscuits with oil was greater than that of the ones with shortening, except products with the addition of lecithin. Inulin affected lightness of color, whereas replacement of shortening with oil darkened the color and caused the total color difference (ΔE) to be significantly different from that of the control sample. The fat migration was maximum from products in which oil was used without additives. Based on sensory evaluation, biscuits with oil – inulin and lecithin – which in the evaluation of overall quality scored 8/10 and 7.9/10, respectively, proved closest to the control sample. It was observed that the sensory quality of cookies significantly improved with the inclusion of lecithin. [ABSTRACT FROM AUTHOR]

In the present study, the effects of inulin as a prebiotic substance at various levels (PSL) (0, 60, 90 and 120 g/kg) in milk chocolate, as well as the use of varying conching time (CT) (3.50, 4.0 and 4.50 h) and refining conditions (20.0, 25.0 and 28.0 µm as the mean particle size, D[4,3]) in the sample preparation process were examined with respect to changes in the physical (colour, hardness, water activity) and rheological properties of the samples. Specific surface area (SSA) and largest particle size (D90) values increased with increasing values of PSL; however, intended D[4,3]values were reached for all PSL values. CT, PSL and PSD (particle size distribution) had no significant effect on the brightness and chroma in the inulin-containing milk chocolate; however, it has been found that hardness, water activity, yield stress and viscosity produced significant changes (P < 0.01). [ABSTRACT FROM AUTHOR]