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首页> 外文期刊>Chemistry and Physics of Lipids >C-13 NMR, GC and HPLC characterization of lipid components of the salted and dried mullet (Mugil cephalus) roe 'bottarga'
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C-13 NMR, GC and HPLC characterization of lipid components of the salted and dried mullet (Mugil cephalus) roe 'bottarga'

机译：盐腌和干燥的鱼（Mugil cephalus）鱼卵“ bottarga”的脂质成分的C-13 NMR，GC和HPLC表征

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C-13 NMR spectroscopy, in conjunction with HPLC and GC techniques, has been used to study the molecular composition of lipids extracted from commercial products of bottarga. To this goal, both the saponifiable and unsaponifiable fractions of lipid extracts were also examined by 13C NMR. Among the major lipid classes wax esters (WE) showed a concentration of more than 50 mol%, triacylglycerols (TAG) and phospholipids (PL) represented a minor fraction. Concentrations up to 29 inol% of free fatty acids (FFA) were found. The most represented fatty alcohol was 16:0 that accounted for more than 50%, among fatty acids the most represented were 16:1 n-7, 22:6 n-3, 18:1 n-9, 16:0, and 20:5 n-3, in particular the n-3 polyunsaturated fatty acids (PUFA) averaged 40 mg/g of the edible portion. C-13 NMR spectroscopy put in evidence that cholesterol was present in its free and esterified forms and its total content was measured as ca. 10 mg/g of the edible portion. (C) 2007 Elsevier Ireland Ltd. All rights reserved.
机译：C-13 NMR光谱结合HPLC和GC技术已用于研究从Bottarga商业产品中提取的脂质的分子组成。为了这个目标，脂质提取物的可皂化部分和不可皂化部分都通过13 C NMR进行了检查。在主要的脂类中，蜡酯（WE）的浓度超过50 mol％，三酰基甘油（TAG）和磷脂（PL）占很小的比例。发现浓度高达29 inol％的游离脂肪酸（FFA）。脂肪醇含量最高的是16：0，占50％以上，其中脂肪酸脂含量最高的是16：1 n-7、22：6 n-3、18：1 n-9、16：0和20：5 n-3，特别是n-3多不饱和脂肪酸（PUFA）平均为40 mg / g可食用部分。 C-13 NMR光谱法证明胆固醇以游离和酯化形式存在，其总含量以ca计。 10 mg / g可食用部分。 （C）2007 Elsevier Ireland Ltd.保留所有权利。

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