工厂化循环水养殖珍珠龙胆石斑鱼营养成分、食用安全性和质构特性分析

Study of nutritional quality, edible safety and texture properties of ♀Epinephelus fuscoguttatus ×♂Epinephelus lanceolatus in industrial recirculating aquaculture systems

中文关键词:  珍珠龙胆石斑鱼  营养成分  工厂化循环水养殖

英文关键词:♀Epinephelus fuscoguttatus ×Epinephelus lanceolatus  nutritional components  industrial recirculating aquaculture systems

中文摘要:

      目的 分析和评价工厂化循环水养殖模式下珍珠龙胆石斑鱼(♀Epinephelus fuscoguttatus ×Epinephelus lanceolatus)的营养价值、质构特性和食用安全性。方法 根据相关检测标准, 测定珍珠龙胆石斑鱼的主要营养成分、氨基酸组成、脂肪酸组成、维生素、重金属、农残药残等的含量和质构特性, 并进行营养评价。结果 该养殖模式下, 珍珠龙胆石斑鱼蛋白质含量高达19.51%, 氨基酸种类齐全, 必需氨基酸占氨基酸总量的40.68%, 符合国际通用的理想模式; 呈味氨基酸占氨基酸总量的37.76%, 必需氨基酸指数95.79, 氨基酸平衡效果好, 营养价值和保健价值高; 脂肪含量高, 多不饱和脂肪酸占脂肪酸总量的45.47%; 维生素E含量十分丰富; 重金属、农残等安全性指标均符合相关标准要求, 食用安全性高。结论 工厂化循环水养殖的珍珠龙胆石斑鱼是一种高蛋白、高不饱和脂肪酸、氨基酸组成均衡的海产鱼类, 具有较高的食用和保健价值。

英文摘要:

      Objective To analyze the nutritional value, texture properties and food safety of the ♀Epinephelus fuscoguttatus ×♂Epinephelus lanceolatus in industrial recirculating aquaculture systems. Methods According to related testing standards, the general nutrient composition, amino acids, fatty acids, vitamins, heavy metals, pesticide residues and texture properties of ♀Epinephelus fuscoguttatus ×♂Epinephelus lanceolatus were determined, and the nutritional evaluation was carried out. Results Under this culture mode, the protein content of ♀Epinephelus fuscoguttatus ×♂Epinephelus lanceolatus was as high as 19.51%, with a complete variety of amino acids, and the essential amino acids accounted for 40.68% of the total amino acids, which conformed to the international ideal mode. The delicious amino acids accounted for 37.76% of total amino acids. The essential amino acids index (EAAI) was 95.79, which indicated balanced amino acids and high nutritional as well as health care value. The fat content was high with polyunsaturated fatty acids accounting for 45.57% of total acids. The content of vatamin E was rich. The safety indicators such as heavy metals and pesticide residues all met the requirements of relevant standards, and the food safety was high. Conclusion The ♀Epinephelus fuscoguttatus ×♂Epinephelus lanceolatus in industrial recirculating aquaculture systems is a kind of marine fish with high protein, high unsaturated fatty acid and balanced amino acid composition, which has high edible and health value.