| 草鱼内脏鱼油乙醇提取研究及其脂舫酸组成分析 |
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| 引用本文： | 郭休玉,何兰.草鱼内脏鱼油乙醇提取研究及其脂舫酸组成分析[J].齐鲁渔业,2019(8):1-5,I0001. |
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| 作者姓名： | 郭休玉 何兰 |
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| 作者单位： | 上海市水产研究所（上海市水产技术推广站）水产品加工与饲料研究室 |
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| 基金项目： | 上海市市级农口系统青年人才成长计划,沪农青字(2017)第3-10号。 |
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| 摘 要： | 对无水乙醇提取草鱼内脏鱼油工艺进行了研究,并分析了鱼油的基本理化性质和脂肪酸组成,主要研究了料液比对鱼油提取率的影响。无水乙醇提取草鱼内脏鱼油的工艺为:料液比(w:v)1:8,提取温度55℃,提取时间3小时。在此工艺条件下,粗鱼油提取率为87.6%。粗鱼油经85%磷酸脱胶、4%NaOH脱酸、活性白土脱色后,鱼油呈浅黄色透明状,酸价、过氧化值较低;经冬化处理后的鱼油中不饱和脂肪酸含量约为81.5%。
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| 关 键 词： | 草鱼 内脏 鱼油 乙醇 精炼 不饱和脂肪酸 冬化 |
Study on Ethanol Extraction of Oil from Viscera of Grass Carp and Analysis of the Fatty Acid Composition |
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| Abstract: | The techniques of ethanol extraction of oil from viscera of grass carp was studied and the composition of fatty acid was analyzed. The optimum conditions was as the followings: when the ratio of solid to liquid 1:8, temperature 55℃, extraction time 3h,the extraction rate of crude oil could reach 87.6%. After treatment of degumming, removing acid and decolorizing, high quality oil was acquired. The content of unsaturated fatty acid of the oil was about 81.5% after winterization. |
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| Keywords: | grass carp viscera oil ethanol extraction unsaturated fatty acid winterization |
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