期刊
MOLECULES
卷 27, 期 19, 页码 -出版社
MDPI
DOI: 10.3390/molecules27196506
关键词
flavor; color; texture; total viable counts; shelf life; Arrhenius equation
资金
- Open Fund of the Xinghua Industrial Research Centre for Food Science and Human Health, China [201907]
This study compared the effects of high-pressure processing (HPP) and traditional thermal-and-soaking (TS) treatment on the quality of marinated lotus root slices. The results showed that HPP improved the visual and textural qualities of the slices, and retained their color and crunchiness better during shelf life challenges.
Marinated vegetables are traditional cold dishes with a long history and special flavor in the Chinese deli market. However, the traditional thermal-and-soaking (TS) procedure often results in unreproducible flavor quality properties of marinated vegetables and waste of brine and time in production. A novel green and sustainable technique, high-pressure processing (HPP), has caught the attention of the food industry. In this study, the effects of HPP and TS treatment on the visual, flavor, textural, and microbiological qualities of Chinese marinated lotus root slices were investigated. Compared to the TS products, lighter color, more varieties of volatile compounds, and crunchier texture were detected in the HPP products. Throughout the 4 degrees C, 25 degrees C, and 45 degrees C shelf life challenges, the HPP products retained their original color and crunchiness better than the TS ones, whereas no significant differences were found in total viable counts (TVCs) in the first half of the shelf lives. The Arrhenius model under the first-order reaction of TVC deterioration showed a good fit to the shelf life of the HPP marinated lotus root slices. This study demonstrates that HPP may assist in making the best use of brine in a more time-efficient manner to improve the visual, flavor, and textural quality of traditional Chinese marinated lotus root slices.
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