Soymilk treated by ultra high-pressure homogenization: Acid coagulation properties and characteristics of a soy-yogurt product

被引：73
|
作者：
Cruz, N. S. [1 ]
Capellas, M. [1 ]
Jaramillo, D. P. [1 ]
Trujillo, A. J. [1 ]
Guamis, B. [1 ]
Ferragut, V. [1 ]
机构：
[1] Univ Autonoma Barcelona, Fac Vet, Dept Ciencia Anim & Aliments, CERPTA, Bellaterra 08193, Spain
来源：
FOOD HYDROCOLLOIDS | 2009年 / 23卷 / 02期
关键词：
Soymilk; Coagulation; Ultra high-pressure homogenization (UHPH); Water retention; Gel firmness; FAT GLOBULE SIZE; FERMENTED SOYMILK; ORANGE JUICE; ESCHERICHIA-COLI; WHEY PROTEINS; BOVINE-MILK; SHELF-LIFE; INACTIVATION; BIFIDOBACTERIA; CULTURES;
D O I：
10.1016/j.foodhyd.2008.03.010
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The effects of ultra high-pressure homogenization (UHPH) on soymilk were investigated and its suitability for soy-yogurt manufacturing was compared with conventional heat treatments (UHT and autoclaved). UHPH soymilk at 40 and 50 degrees C inlet temperature was treated at 200 and 300 MPa. Coagulation parameters and acidification curves were determined for the fermentation process. Textural parameters, water-holding capacity and microstructure were performed on soy-yogurts obtained after cold storage during 24 h. Results indicated that conventionally heat-treated soymilks and UHPH-treated samples exhibited different behaviour to coagulation. Heat-treated soymilk had a shorter onset of gelation, and higher aggregation rate and gel network density than UHPH-treated soymilk. However, physical quality parameters, specially firmness, were much better in UHPH than in conventional heat-treated soy-yogurts. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：490 / 496
页数：7
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