Hiệu quả chống oxy hóa lipid và ức chế biến đen của dịch chiết từ phế liệu nấm rơm trên tôm thẻ chân trắng bảo quản lạnh

Abstract

This study evaluated the effectiveness of straw mushroom waste extract (Volvariella volvacea waste extract - VWE) in preventing melanosis formation and lipid oxidation in Pacific white shrimp (Litopenaeus vannamei) during refrigerated storage. The results indicated that shrimp treated with VWE significantly reduced both melanosis formation and lipid oxidation compared to control shrimp. Shrimp treated with VWE had significantly lower melanosis scores and TBARS values (p < 0.05) than the control shrimp, as well as significantly higher sensory scores (p < 0.05), demonstrating the effectiveness of VWE in inhibiting melanosis formation and lipid oxidation in shrimp. Furthermore, there were no significant differences (p > 0.05) in melanosis scores, TBARS values, and sensory scores between shrimp treated with VWE and those treated with sodium metabisulfite (SMS) after 4 days of refrigerated storage. These results suggest that VWE is a promising natural alternative to SMS for preventing melanosis formation and lipid oxidation in shrimp during short-term refrigerated storage.

 Keywords: black spots, ergothioneine, lipid oxidation, polyphenol oxidases, post-harvest handling