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Anatomical distribution of sterols in oysters ( Crassostrea gigas )
Author(s) -
Gordon Dennis T.,
Collins Nancy
Publication year - 1982
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/bf02535358
Subject(s) - sterol , crassostrea , oyster , biology , lipidology , adductor muscles , gill , mantle (geology) , chromatography , anatomy , clinical chemistry , botany , chemistry , cholesterol , biochemistry , fishery , fish <actinopterygii> , paleontology
Oysters ( Crassostrea gigas ) contain at least 8 predominant sterols as determined by gas liquid chromatography and a modified Liebermann‐Burchard reaction. These sterols and the average amount found in mg/100 are: C 26 ‐sterol (22‐ trans ‐24‐norcholesta‐5, 22‐diene‐3β‐ol), 19.1; 22‐dehydrocholesterol, 15.1; cholesterol, 46.8; brassicasterol, 27.2; Δ 5,7 ‐sterols (i.e., 7‐dehydrocholesterol) 22.5; 24‐methylenecholesterol 29.1; 24‐ethylcholesta‐5,22‐diene‐3β‐ol, 1.2; and 24‐ethylcholesta‐5‐en‐3β‐ol, 12.7. The distribution of these sterols appears uniform (r 2 =0.938) between 5 major organs of the oyster. The percent body mass vs percent total sterols in these 5 organs are: mantle 44.1–41.4; visceral mass 30.3–36.7; gills 13.2–11.7; adductor muscle 8.3–3.7; and labial palps 4.2–6.5. The possible sources of these sterols are discussed.