Abstract
This paper describes the lipid compositions of the flesh [I] and the viscera [II] of japanese prickly scallop, Chlamys nipponensis akazara. The total lipid contents of [I] and [II] were 1.5% and 4.6%. based on wet weight, respectively. The acetone-soluble lipid contents (% total lipid) were 13.3%, of [I] and 85.2%, of [II]. The fatty acid composition chiefly consisted of 16:0, 20:5, 22:6, 18:1 and 16:1 acids in [I], and 16:0, 16:1, 18:1 and 20:5 acids in [II]. The unsaponiflable components consisted of sterols, 59.1% (cholesterol, 37.0%, and ?? 5, 7-sterols, 9.8%, of the total sterols), normal hydrocarbons, 10.9%, (largely hexadecane), glyceryl ethers, 10.9% (chiefly batyl-, selachyl- and chimyl alcohols), (C13-C22) fatty alcohols, 3.4%, (C12-C22) methylketones, 1.2% and unidentified hydrocarbons, 3.9%. The relative acid contents of [I] and [II] were as follows: 16:1 and 18:1 acids, [II]> [I], 22:6 acid, [I]>[II].
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