Department of Food Technology, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
Food Chem. 2013 Dec 15;141(4):4138-45. doi: 10.1016/j.foodchem.2013.07.001. Epub 2013 Jul 8.
Chemical compositions and nutritive value of the edible portions including foot, mantle and viscera of Asian hard clam (Meretrix lusoria) harvested from the coast of Andaman Sea were determined. Proximate compositions varied with portions tested. Edible portions had moisture (76.23-84.22%) and protein (9.09-12.75%) as the major components. Carbohydrate (0.32-7.89%), fat (1.58-6.58%) and ash (1.23-2.58%) were also found at various levels, dependent upon portions. Myofibrillar proteins were observed as the major fraction in foot (40.54%) and mantle (31.65%), whilst non-protein nitrogen constituents were dominant in the viscera (36.85%). All portions contained a large amount of essential amino acids (167.66-187.63 mg/g sample), in which leucine (30.91-36.96 mg/g sample) and lysine (35.24-36.03 mg/g sample) were predominant. They were rich in polyunsaturated fatty acids (46.84-49.18% of total fatty acid) with high level of DHA (13.33-16.47 % of total fatty acids) and EPA (4.75-7.11% of total fatty acids). Cholesterol of 0.07-0.21% wet weight was detected. All portions were also rich in macro- (Na, K, Ca and Mg) and micro- (Fe, Zn, Cu and Cr) minerals. Therefore, Asian hard clam is an excellent source of several nutrients, which could be beneficial for the health of the consumers.
从安达曼海沿岸采集的亚洲帘蛤（Meretrix lusoria）的可食用部分（足部、套膜和内脏）的化学成分和营养价值进行了测定。测试的部位不同，近似成分也不同。可食用部分的主要成分是水分（76.23-84.22%）和蛋白质（9.09-12.75%）。碳水化合物（0.32-7.89%）、脂肪（1.58-6.58%）和灰分（1.23-2.58%）的含量也各不相同，这取决于部位。肌原纤维蛋白是足部（40.54%）和套膜（31.65%）的主要成分，而非蛋白氮成分在内脏中占主导地位（36.85%）。所有部位都含有大量的必需氨基酸（167.66-187.63mg/g 样品），其中亮氨酸（30.91-36.96mg/g 样品）和赖氨酸（35.24-36.03mg/g 样品）含量最高。它们富含多不饱和脂肪酸（总脂肪酸的 46.84-49.18%），其中 DHA（总脂肪酸的 13.33-16.47%）和 EPA（总脂肪酸的 4.75-7.11%）含量较高。检测到的胆固醇湿重为 0.07-0.21%。所有部位还富含大量（Na、K、Ca 和 Mg）和微量（Fe、Zn、Cu 和 Cr）矿物质。因此，亚洲帘蛤是多种营养物质的良好来源，这对消费者的健康有益。
