食品科学2024，Vol.45Issue(24)：26-35,10.DOI:10.7506/spkx1002-6630-20240713-118
豌豆抗性淀粉对肌原纤维蛋白乳液凝胶特性及蛋白质体外消化率的影响
Effect of Pea Resistant Starch on Emulsion Gel Properties and in Vitro Digestibility of Myofibrillar Proteins
摘要
Abstract
In this study,the effects of pea resistant starch type 3(RS3)at different mass fractions(0%,2%,4%and 6%)on the emulsion stability,emulsion gel properties and in vitro digestibility of chicken breast myofibrillar proteins(MP)were analyzed.Fourier transform infrared spectroscopy(FTIR)showed no covalent interaction between MP and pea RS3.The addition of pea RS3 significantly decreased the surface hydrophobicity(P<0.05)while increasing the fluorescence intensity of MP,indicating enhanced protein-protein interactions.The addition of pea RS3 resulted in improved stability of MP emulsions,as manifested by higher absolute values of zeta potential,smaller droplet sizes and reduced creaming index.These changes promoted the formation of gel networks with improved texture and increased storage modulus(G'),gel strength and water holding capacity(WHC),especially at a pea RS3 concentration of 6%.The chemical force results showed that the addition of pea RS3 led to enhanced hydrophobic interaction and disulfide bonding between MP molecules.Low field-nuclear magnetic resonance(LF-NMR)confirmed that pea RS3 addition facilitated the migration of free water to immobilized water.Furthermore,the incorporation of pea RS3 caused a lower pepsin digestibility without changing the overall in vitro digestibility of MP gels.These results indicated that pea RS3 addition can contribute to the production of high-quality meat products with a low glycemic index without reducing protein digestibility.关键词
抗性淀粉/肌原纤维蛋白/乳液凝胶/凝胶特性/体外消化率Key words
resistant starch/myofibrillar proteins/emulsion gel/gel properties/in vitro digestibility分类
轻工纺织引用本文复制引用
陈金玉,胡方洋,吉芷芮,吴子健..豌豆抗性淀粉对肌原纤维蛋白乳液凝胶特性及蛋白质体外消化率的影响[J].食品科学,2024,45(24):26-35,10.基金项目
天津市优秀农业科技特派员项目(24ZYCGSN01220) （24ZYCGSN01220）
天津市优秀企业科技特派员项目(23YDTPJC00150) （23YDTPJC00150）
天津市重点研发科技项目(23ZYCGSN00930) （23ZYCGSN00930）
