動物体の角質化組織中の脂質成分に関する研究 (第2報) : イワシクジラのケンの脂質成分

概要

論文の詳細を見る
Studies on the lipid compositions in the horny tissues have not been undertaken except on the crystal lens of tunny (Thunnus thynnus orientalis) and the scales of Kinmedai (Beryx splendeus Lows) studied by authors. This investigation was attempted to analyse the lipid components of the tendon of Sardine-whale as to the fatty acids and unsaponifiable matters. The lipids were obtained by extracting the tendon with ether, then treated with n-hexane. The yield was 2.3% to fresh tissue. The weight and the properties were as follows ; reddish brown liquid, n20D 1.4791, I.V. 92.8, A.V. 5.2 and unsaponifiable matters 3.78%. The fatty acid contents analysed by means of gas chromatography were as follows ; C12 : 0=0.8, C14 : 0=5.7, C16 : 0=8.5, C18 : 0=5.2, C20 : 0=18.6, C12 : 1=1.3, C14 : 1=2.1, C14 : 2=0.4, C16 : 1=6.7, C16 : 2=0.8, C18 : 1=14.1, C18 : 2=3.8, C18 : 3=3.9, C20 : 1=16.3, C20 : 2=1.8, C22 : 1=10.0. The fatty acid compositions obtained by means of spectrometric analysis were as follows ; F2=3.6 (conjd. 1.30), F3=1.5 (conjd. 0.05), F4=1.3 (conjd. 0.03), F5=0.4, F6=0.6. The unsaponifiable matters were orange liquid containing 76.0% sterol (by Digitonin method). The main sterol of those is believed as cholesterol and the other sterol is Δ5.7 sterol (8.5%). The balance of the unsaponifiable matters seems higher alcohol and hydrocarbon.
社団法人日本油化学会の論文