雌性虎斑乌贼缠卵腺营养成分分析与评价

为评估雌性虎斑乌贼缠卵腺的营养水平，确定其开发利用价值，对其一般营养成分、氨基酸组成、脂肪酸组成、胆固醇含量和无机元素进行分析。结果表明，雌性虎斑乌贼缠卵腺（鲜质量）中水分、粗蛋白、粗脂肪和灰分含量分别为73.27%、18.40%、0.16%和1.70%。缠卵腺中共检出18 种氨基酸，必需氨基酸含量为5.54 g/100 g，占氨基酸总量的41.47%，必需氨基酸构成比例符合联合国粮食与农业组织/世界卫生组织模式。以氨基酸评分评价，其第1限制性氨基酸是缬氨酸；以化学评分评价，其第1限制性氨基酸是色氨酸。不饱和脂肪酸含量丰富，占脂肪酸总量的63.21%，其中二十碳五烯酸和二十二碳六烯酸的含量分别为12.55%和33.19%。胆固醇含量为2.24 mg/g，远低于鸡蛋黄。常量元素K、Ca、Na、Mg和微量元素Se、Cu、Mn等含量丰富，但重金属元素As含量达到35.90 mg/kg，远超出限定的0.5 mg/kg。以上结果表明雌性虎斑乌贼缠卵腺营养价值丰富，但需控制食用量及加工方法，保证食品安全。

Analysis and Evaluation of Nutritional Components of the Nidamental Gland in Female Sepia pharaonis

The general nutrients, amino acids, fatty acids, cholesterol and inorganic elements in the nidamental gland of
female Sepia pharaonis (S. pharaonis) were analyzed to evaluate its nutritional value and developmental prospects. The
results showed that the contents of moisture, crude protein, crude fat and ash in the nidamental gland of female S. pharaonis
on fresh weight basis were 73.27%, 18.40%, 0.16% and 1.70%, respectively. Eighteen amino acids were detected in the
nidamental gland of female S. pharaonis and the content of essential amino acids (EAA) was 5.54 g/100 g, which accounted
for 41.47% of the total amino acids. The composition of EAAs met the FAO/WHO pattern. According to nutritional
evaluation by amino acids score (AAS), the first limiting amino acid was Val, while the first limiting amino acid was Trp
based on chemical score (CS). The total unsaturated fatty acids (UFAs) in the nidamental gland of female S. pharaonis
accounted for 63.21% of the total amount of fatty acids, and eicosapentaenoic acid (EPA) and docosahexaenoic acid
(DHA) accounted for 12.55% and 33.19% of the total fatty acids, respectively. The content of cholesterol in the sample was
2.24 mg/g, which was evidently lower than that of egg yolk. Macroelements (K, Ca, Na, and Mg) and trace elements (Se, Cu, and
Mn) were abundant in the nidamental gland of female S. pharaonis, but the content of As was 35.90 mg/kg, which highly exceeded
the limit standard of 0.5 mg/kg. These results indicated that the nidamental gland of female S. pharaonis possesses high nutritional
value, but there is a necessity for appropriate consumption and processing methods to ensure food safety.