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Water-oil displacement in prefried potatoes during freezing-thawing and reheating: A simulation of the industrial prepared dishes supply chain

文献类型: 外文期刊

作者: Lin, Hengxun 1 ; Cui, Liye 1 ; Tian, Meisui 1 ; Guan, Wenqiang 3 ; Chisoro, Prince 1 ; Li, Xia 1 ; Yang, Yiping 1 ; Chen, Yong 1 ; Chen, Xiangning 4 ; Blecker, Christophe 2 ; Zhang, Chunhui 1 ;

作者机构: 1.Chinese Acad Agr Sci, Inst Food Sci & Technol, Key Lab Agroprod Qual & Safety Control Storage & T, Minist Agr & Rural Affairs, Beijing 100193, Peoples R China

2.Univ Liege, Gembloux Agrobio Tech, B-5030 Gembloux, Belgium

3.Tianjin Univ Commerce, Tianjin Key Lab Food Biotechnol, Tianjin 300134, Peoples R China

4.Beijing Univ Agr, Food Sci & Engn Coll, Beijing 100193, Peoples R China

关键词: Industrial processed dishes; Freezing-reheating; Reheating methods; Water-oil exchange; Potato semi-products

期刊名称:FOOD CHEMISTRY ( 影响因子:9.8; 五年影响因子:9.7 )

ISSN: 0308-8146

年卷期: 2025 年 490 卷

页码:

收录情况: SCI

摘要: Prefried potato is a common semi-finished product used in catering services. However, the quality changes that occur during its transition from a semi-finished to a finished dish remain unclear. This study investigated the moisture and oil content changes in prefried potatoes during freezing-thawing and various reheating processes. The results showed that the oil contents of prefried, prefried-refried, and prefried-reboiled potatoes were 2.14 %, 3.34 %, and 1.33 %, respectively. The moisture content of prefried-reboiled potatoes was higher than that of prefried and prefried-refried samples. SEM and MRI analysis revealed that freezing significantly (P < 0.05) increased porosity and promoted water-oil exchange in frozen-refried and frozen-reboiled potatoes. Ice melting contributed to reduced porosity and inhibited oil absorption in thawed-refried samples. However, there were no significant differences (P > 0.05) in moisture and oil content between frozen-reboiled and thawed-reboiled samples. This study provides new insights into the quality changes of semi-finished foods during industrial processing.

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