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Start Over Author "Sun, Shichen" Publisher elsevier bv
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24. Factors Affecting Sensory Quality of Cooked japonica Rice

Author

XU Yanjie, Ouyang Shuhong, Duan Xiaoliang, Sun Shichen, Bao Jinsong, Sun Hui, Ying Yining, and Jiang ShuKun

Subjects
media_common.quotation_subject, food and beverages, Rice grain, Sensory system, 04 agricultural and veterinary sciences, Plant Science, lcsh:Plant culture, Biology, Free amino, 040401 food science, Japonica rice, Protein content, chemistry.chemical_compound, 0404 agricultural biotechnology, chemistry, Amylose, Correlation analysis, lcsh:SB1-1110, Quality (business), Food science, Agronomy and Crop Science, Biotechnology, media_common
Abstract

The sensory quality of cooked rice is an important factor in determining its market price, as well as consumer acceptance and breeding efforts aimed at improvement of rice grain quality. In this study, the sensory quality and physicochemical properties of three japonica rice varieties harvested in two different growing locations (Xiangshui and Hangzhou of China) were compared to determine the most important factors affecting the sensory quality. All the three varieties had higher scores for overall sensory quality in Xiangshui than in Hangzhou, indicating that the growing location is a key factor in determining the sensory quality of cooked japonica rice. In addition to growing location, variety (genotype) also had an important effect. Longdao 18 scored the highest for overall sensory quality in the two locations, whereas Longdao 30 had the lowest score in Xiangshui, and both Longdao 20 and Longdao 30 had the lowest scores in Hangzhou. Many physicochemical properties, such as apparent amylose content, protein content, thermal properties and free amino acid contents, showed significant differences between the two locations. Correlation analysis showed that apparent amylose content and protein content had contrasting effects on all the sensory attributes. The overall sensory quality was negatively correlated with protein content (r = −0.89, P

Published
2018

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