海南岛3种石磺肌肉组织营养成分分析

Muscle nutrition composition analysis of three Onchidium species from Hainan Island

参照国家食品营养成分分析相关标准,结合液相色谱仪,元素分析仪,电感耦合等离子光谱仪等测定海南岛采集的瘤背石磺(Onchidium struma),紫色疣石磺(Peronia verruculata),平疣桑葚石磺(Platevindex mortoni)3种石磺肌肉组织中营养成分。结果表明:海南岛3种石磺均属于高蛋白质低脂肪的海产品,蛋白质含量达65.0%以上,其中以平疣桑葚石磺蛋白质含量最高;瘤背石磺肌肉组织多糖含量高达30.96%±1.48%,显著高于其他2种石磺;3种石磺肌肉组织中氨基酸组成全面,且以呈味氨基酸含量最高,均达5.60%以上;3种石磺肌肉组织均含有丰富的矿质元素,其中以钙和镁元素含量最高,含量达20~30 g/kg,同时钠和钾元素含量达3.0~6.5 g/kg。海南岛3种石磺均具有丰富的营养价值,其中以高蛋白高多糖低脂肪的瘤背石磺最具有开发前景。

Using the standards of national food nutrients and the methods of HPLC,Vario EL,and ICP-OES measured the nutrient components of the muscle tissue from Onchidium struma,Peronia verruculata and Platevindex mortoni.The results showed that all three species of Onchidiidae from Hainan Island belong to the seafood product with a high protein concentration above 65.0%and low fat.Among the species,P.mortoni had the highest protein content.The polysaccharide concentration of O.struma is up to 30.96%±1.48%was much higher than the concentration of the two species.There was also a large concentration of amino acid components in the muscle tissues from these three Onchidiidae species,and the flavor amino acids were the highest of all,and they were above 5.60%.The muscle tissues from all three Onchidiidae species contained abundant mineral elements with the highest contents of calcium and magnesium,and they were between 20 and 30 g/kg.Meanwhile,the concentrations of sodium and potassium were between 3.0 and 6.5 g/kg.These three Onchidiidae species collected from Hainan Island possess abundant nutritional value.In particular,the O.struma with high protein and polysaccharide and low fat has the most promising development.