Comparative studies on physicochemical properties of three potato varieties different in RS2 and RS3 contents

食品科学 淀粉 化学 抗性淀粉 颗粒(地质) 原材料 生物 古生物学 有机化学
作者
Siyan Zhang,Linrun Cheng,Wanxin Gong,Jie Huang,Zhangchi Peng,Kaiwei Meng,Zhang Liang,Xiaoli Shu,Dianxing Wu
出处
期刊:Journal of the Science of Food and Agriculture [Wiley]
卷期号:103 (15): 7712-7720 被引量:1
标识
DOI:10.1002/jsfa.12853
摘要

At present, increasing importance has been attracted to healthy food enriched in resistant starch (RS), which has great benefits in health-promoting. Raw potato has rich RS2, whereas most RS2 may become digestible after gelatinization, resulting in few RS being left in processed potato. Breeding potatoes with high RS2 or RS3 or both can meet the demand for various healthy potato products.There were apparent discrepancies among three potatoes with contrast RS2 and RS3 content in thermal properties, viscosity and digestibility. ZS-5 had the highest RS2 with 50.17% but the lowest RS3 with 3.31%. Meanwhile, ZS-5 had the largest starch granule, the highest proportion of B3, viscosity and hardness, and the highest digestibility. DN303 with the highest content of RS3 (5.08%) had the lowest hardness and fracturability. MG56-42 with both higher RS2 and RS3 content showed the highest resistance to digestion and moderate hardness and fracturability.The present study enriches the potential resources and provides a reliable scientific basis for high RS potatoes breeding. The various features of different potatoes make it possible to screen potatoes according to different demands. © 2023 Society of Chemical Industry.
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