Preparation and quality assessment of processed cream cheese by high hydrostatic pressure combined thermal processing and spore-induced germination
文献类型: 外文期刊
第一作者: Song, Bo
作者: Song, Bo;Zhang, Yumeng;Pang, Xiaoyang;Lv, Jiaping;Zhang, Shuwen;Zhu, Panpan;Ju, Ning;Zhang, Shuwen
作者机构:
关键词: Processed cream cheese; Commercial sterility; Maillard reaction; Volatile compounds; Texture
期刊名称:JOURNAL OF FOOD ENGINEERING ( 影响因子:5.5; 五年影响因子:5.7 )
ISSN: 0260-8774
年卷期: 2023 年 341 卷
页码:
收录情况: SCI
摘要: This study evaluated effects of several sterilization methods on the microbial load and quality attributes of processed cream cheese (PCC). The results showed that ultra-high temperature instantaneous sterilization (UHT, 137 degrees C/4 s), high temperature sterilization (121 degrees C/10 min) and pasteurization (65 degrees C/30 min) coupled with germinant (L-alanine) and high hydrostatic pressure (450, 550 MPa/20 min) was able to inactivate bacterial endospores. Regarding cheese quality, pasteurization coupled with germinant and high hydrostatic pressure -treated cheeses had fewer Maillard reaction byproducts and lower fluorescence intensity, with 63% and 81% decrease in furosine content compared to UHT and high temperature sterilization, respectively. In terms of sensory properties, high hydrostatic pressure treatment maintain the cheese original color and flavour, reduced the formation of ketones and sulfide. Furthermore, high hydrostatic pressure-treated cheeses exhibited a smaller closed-loop area and higher stability, while UHT cheese were less stable due to fat globule aggregation. Therefore, pasteurization coupled with germinant and high hydrostatic pressure is a promising sterilization methods to produce long shelf-life processed cream cheese.
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