Lê Thị Minh Thủy * Trương Thị Mộng Thu

* Tác giả liên hệ (ltmthuy@ctu.edu.vn)

Abstract

This study presents the research in using chitosan solution to preserve Tra fish fillet frozen replace polyphosphate and investigates the effect of the chitosan concentration and the time of treatment on the gain weight of Tra fish fillet. The research results showed that it is possible to use chitosan with concentration 0.5% in 25 minutes to remarkably reduce the change of quality of Tra fish fillet frozen such as weight loss, protein content, lipid content, sensory, antimicrobial during 6 months.
Keywords: polyphosphate, Tra fish fillet

Tóm tắt

Bài báo trình bày kết quả nghiên cứu sử dụng chitosan để bảo quản cá Tra fillet đông lạnh thay thế cho hợp chất polyphosphat. Khảo sát ảnh hưởng của nồng độ chitosan và thời gian xử lý đến hiệu quả tăng trọng của cá Tra fillet. Kết quả nghiên cứu cho thấy có thể sử dụng dung dịch chitosan 0,5% trong thời gian 25 để làm giảm đáng kể sự thay đổi chất lượng cá Tra fillet đông lạnh như hao hụt khối lượng, hàm lượng protein, hàm lượng lipid, đặc tính cảm quan và khả năng kháng khuẩn trong suốt 6 tháng bảo quản.
Từ khóa: chitosan, polyphophat, cá Tra phi lê

Article Details

Tài liệu tham khảo

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