食品工业科技2025，Vol.46Issue(11)：44-51,8.DOI:10.13386/j.issn1002-0306.2024040377
大豆分离蛋白-多糖-淀粉减盐凝胶体系的构建及性质表征
Construction and Characterization of Soybean Isolate Protein-Polysaccharide-Starch Salt-reducing Gel System
摘要
Abstract
In this paper,salt-reducing gel based on soybean protein isolate-polysaccharide-cassava starch was constructed with konjac glucomannan,carrageenan and xanthan gum,respectively.The results showed that soy protein-Konjac glucomannan condensates and soy protein-carrageenan condensates had strong retention capacity for sodium ions on pig tongue,which was conducive to salty perception.Electron tongue analysis showed that compared with carrageenan and xanthan gum,the salt-reducing gel system of soy protein isolate-Konjac glucomannan-starch(ST+SPI-KGM+1.5％NaCl)and 2％NaCl starch gel(ST+2％NaCl)had the most similar saltiness.In microstructure,SPI-KGM and starch were cross-linked to form a continuous and dense network structure.X-ray energy dispersion spectroscopy showed that sodium ions in ST+SPI-KGM+1.5％NaCl presented an uneven distribution.Compared with 2％NaCl starch gel,the water holding capacity and texture properties(hardness,chewiness and cohesiveness)of soybean protein-polysaccharide-starch salt-reducing gel were significantly increased(P＜0.05),among which ST+SPI-KGM+1.5％NaCl had the best effect.The concentration of NaCl by soybean isolate protein-polysaccharide complex condensates to regulate the uneven distribution of salt in the food substrate could reduce 25％ salt content without reducing the saltiness.This study developed a salt reduction gel system with uneven salt distribution while maintaining its texture perception,providing a new idea for reducing the salt content of starch-based solid foods.关键词
减盐/氯化钠/淀粉基凝胶/大豆分离蛋白/魔芋葡甘聚糖/卡拉胶/黄原胶Key words
salt-reducing/NaCl/starch-based gel/soybean isolate protein/konjac glucomannan/carrageenan/xanthan gum分类
轻工业引用本文复制引用
杨思琪,张谦谦,许英茹,林志雄,张怡,郑宝东,曾红亮..大豆分离蛋白-多糖-淀粉减盐凝胶体系的构建及性质表征[J].食品工业科技,2025,46(11):44-51,8.基金项目
十四五国家重点研发计划"食品制造与农产品物流科技支撑"重点专项项目(2022YFD2101301) （2022YFD2101301）
2022年度福州市海洋科创高地"揭榜挂帅"项目(2022-ZD-017). （2022-ZD-017）
