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| Comparison of Nutritive Compositions among Clams Gomphina aequilatera, Cultellus scalprum and Tegillarca nodifera found in Wenzhou Coast, Zhejiang Province |
| ZHANG Yong-pu,ZHANG Jiong-ming,FANG Jun,ZHOU Hua-bin |
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Abstract The nutritional compositions of the edible parts in clams Gomphina aequilatera, Cultellus scalprum and Tegillarca nodifera in Wenzhou coast in Zhejiang province were analyzed by routine methods. There were crude proteins of 58.11%, 71.02% and 59.17% in the edible parts of G. aequilatera, C. scalprum and T. nodifera, and crude fat of 14.98 %, 14.35% and 10.62%, respectively. The contents of ash were 10.85%, 9.05% and 11.03%, respectively. The total content of amino acids in the dry sample of the edible part was 459.27 mg/g, 565.20 mg/g and 509.83 mg/g, respectively, including the essential amino acid contents of 157.33 mg/g, 197.03 mg/g and 181.57 mg/g, respectively. The flavour amino acids in the dry sample of the edible part were 241.40 mg/g, 288.40 mg/g and 258.60 mg/g, respectively, Met + Cys being the first limited amino acid. There were 22, 23 and 21 fatty acids in the edible part of G. aequilatera, C. scalprum and T. nodifera, respectively. There was no C14:1 in G. aequilatera and T. nodifera. There was no C14:3 in T. nodifera. The contents of total saturated fatty acids(SFA)were 36.01%, 28.85% and 30.87% respectively, the contents of total unsaturated fatty acids(UFA)of 63.97%, 71.25% and 69.14% respectively, the mono-unsaturated fatty acids(MUFA)of 23.18%, 27.61% and 26.20% respectively, and the poly-unsaturated fatty acids(PUFA)of 40.79%, 43.64% and 42.94%, respectively.
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Received: 25 January 2010
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