韦塞拉 cibaria FAFU821 基于其外聚糖的三维网络结构改善了面包质量
Fan Zhang1, Xiaoying Wang1, Lin Wang1
1College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian, 350002, China.
Food chemistry
|February 20, 2025
概括
韦塞拉 cibaria FAFU821 产生外聚糖 EPS821-2,提高面包的质量. 这种益生菌提高了酸面团的粘性,保持水分,以及面包创新的挥发性化合物.
科学领域:
- 微生物学与食品科学 微生物学与食品科学
- 聚糖的生物化学 聚糖的生物化学
背景情况:
- 乳酸细菌产生的外聚糖 (EPS) 可以影响食物的特性.
- 韦塞拉 (Weissella cibaria) 是一种已知的益生菌,在食品发酵中具有潜在的应用.
研究的目的:
- 为了描述由韦塞拉 cibaria FAFU821.1.产生的外聚糖 EPS821-2 的结构.
- 为了评估Weissella cibaria FAFU821对酸面粉面包质量的影响.
主要方法:
- 使用化学分析和链接确定,阐明EPS821-2的结构.
- 用W. cibaria FAFU821.1发酵后评估酸面粉的特性 (粘性弹性,保持水分的能力,硬度).
- 用气色谱-质谱法分析面包中的挥发性化合物.
主要成果:
- EPS821-2主要由葡萄糖 (95.97%) 和糖 (3.31%) 组成,其分子量为758.77 kDa.
- 外聚糖体具有具有特定分支模式的α-(1→6) 连接,呈现出三维结构.
- 用W. cibaria FAFU821发酵显著提高了酸面粉的粘性弹性,保持水分的能力,并降低了面包的硬度.
- 面包的挥发性状况得到了改善,酸乙烯和酸的含量显著增加.
结论:
- 韦塞拉 cibaria FAFU821产生一个结构独特的外聚糖,EPS821-2.
- W. cibaria FAFU821通过改善纹理和感官属性,对酸面质量产生积极影响.
- 这些发现支持W. cibaria FAFU821和EPS821-2在开发创新的面包制品中的应用.
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