Effects of different thermal sterilization conditions on the quality of ready-to-eat shrimp based on specific sterilization intensity
FOOD CHEMISTRY(2024)
摘要
The effects of different thermal sterilization conditions on the quality and digestibility of ready-to-eat (RTE) shrimp were investigated. Compared with the high-temperature (121 degrees C) and short-time (6 min and 8 min) sterilization, the low-temperature (110 and 115 degrees C) and long-time (>20 min) sterilization significantly promoted the Maillard and browning reactions and changed the color of the RTE-shrimp. The high sterilization temperature promoted shrimp protein oxidation, resulting in increased carbonyl group, disulfide bond, and free radical content, while the free sulfhydryl group content decreased. This oxidation and tissue destruction at high temperature led to reduced texture properties and altered water distribution within the shrimp's muscles. However, sterilized shrimp exhibited superior digestive properties in an in vitro simulated digestion experiment. High-temperature and short-time sterilization is more effective in mitigating the quality deterioration of RTE-shrimp compared to low-temperature and long-time sterilization.
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关键词
Pacific white shrimp,Ready -to -eat shrimp,Thermal sterilization,Protein oxidation,Amino acids,Gastric -intestinal digestion
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