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Effects of mulberry pomace polysaccharide addition before fermentation on quality characteristics of yogurt

文献类型： 外文期刊

作者： Du, Huaxin 1 ; Wang, Xuping 1 ; Yang, Huaigu 1 ; Zhu, Fan 3 ; Cheng, Jingrong 1 ; Peng, Xiaoxia 4 ; Lin, Yaosheng 1 ; Liu, Xueming 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Key Lab Funct Foods, Guangdong Key Lab Agr Prod Proc,Minist Agr & Rural, Guangzhou 510610, Peoples R China

2.Jiangxi Agr Univ, Coll Biosci & Bioengn, Nanchang 330045, Peoples R China

3.Univ Auckland, Sch Chem Sci, Private Bag 92019, Auckland 1142, New Zealand

4.Guangdong Yantang Dairy Co Ltd, Guangzhou 510700, Peoples R China

5.133 Yiheng Lu, Guangzhou 510610, Peoples R China

关键词： Fermented milk; Mulberry pectin; Natural stabilizer; Casein gel; Phase separation

期刊名称：FOOD CONTROL （ 影响因子：6.0； 五年影响因子：5.8 ）

ISSN： 0956-7135

年卷期： 2023 年 153 卷

页码：

收录情况： SCI

摘要： Mulberry pomace, a by-product of mulberry juice processing, is rich in natural bioactive substances including polysaccharides and polyphenols and is useful for the production of functional foods. As such the effects of mulberry pomace polysaccharide (MPP) on physicochemical, textural and microstructural features of yogurt during cold storage were investigated. MPP was incorporated into reconstituted skim milk at 0% (control), 0.5%, 1.0% and 1.5%, respectively and then fermented to yogurt and stored at 4 degrees C for 28 days. The color, pH, titratable acidity, syneresis, rheology, texture and microstructure of yogurt samples were analyzed. The addition of MPP before fermentation dose-dependently affected the pH value and titratable acidity of yogurt samples such that the addition of 0.5% MPP showed the most significant effect in reducing syneresis, increasing gel strength and viscosity, and improving texture and microstructure of yogurt. The results indicate that the appropriate amount of MPP can effectively improve the gel properties and physicochemical parameters of yogurt, and MPP played an important role in the yogurt quality improvement by mulberry pomace.

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