摘要
本研究的主要目的在加探討魷魚內臟油中EPA (Eicosapentaenoic acid), DHA(Docosahexanenoic acid) 以三酸甘油酯或固醇酯方式存在時，在自氧化過程中二者氧化速率之差異。由SP 2330 管柱之氣相層析圖顯示：EPA 及DHA 存在固醇酯之比例為5.8% : 10.03 % ，而存在三酸甘油酯比例為4.77 % : 12.72%。經過自氧化作用，EPA及DHA 存在固醇酯時可能因無立體效應保護，所以較存在三酸甘油酯時之氧化速率為快。此外，存在三酸甘油醋的DHA雖比EPA會較多的不飽和鍵，但也因立體效應保護，二者氧化速率大致一樣，而存在固醇酯的DHA其實氧化速率較EPA快。
關鍵字
無資料並列摘要
This is an attempt to investigate the differences between the oxidation rates, in the autoxidatiori process of EPA and DHA in the squid visceral oil existing and as sterol ester as triglyceride. As the GC chromatigram of form sp 2330 column shows, the percentage of EAP to DHA existing in sterol ester is 5.8% : 10.03% respectively, and 4.77% : 12.72% in triglyceride. The autoxidation rate of EPA and DHA being in sterol ester, as unaffected by stertc effect, is faster than that in triglyceride. Nevertheless, DHA being in triglyceride contains more double bond, and also with the stertc effect, its oxidation rate approximates to that of EPA. Yet, the oxidation rate of DHA in sterol ester is faster than that of EPA.
並列關鍵字
無資料延伸閱讀
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