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| 庸鲽鱼油提取工艺研究及其品质分析 |
| Extraction process and quality of hippoglossus oil |
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| DOI： |
| 中文关键词: 庸鲽鱼 鱼油 提取工艺 理化性质 脂肪酸组成 |
| 英文关键词:hippoglossus fish oil extraction process physicochemical property fatty acid composition |
| 基金项目: |
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| 中文摘要: |
| 通过酶法提取庸鲽鱼油，对其提取条件及品质进行研究。在单因素试验基础上，以鱼油提取率为指标进行响应面优化试验。结果表明：庸鲽鱼油的最佳提取条件为料液比1∶?2（质量比）、加酶量0.25%（以总物料质量计）、动物蛋白酶与胰蛋白酶质量比1∶?1.5、pH 7.5、酶解温度52?℃、酶解时间2 h,在此条件下庸鲽鱼油提取率可达79.85%；庸鲽粗鱼油的酸值、过氧化值、水分及挥发物、不溶性杂质均达到SC/T 3502—2016粗鱼油一级标准；庸鲽鱼油中饱和脂肪酸含量为67.26%，不饱和脂肪酸含量为33.76%，其中EPA和DHA的总含量为13.62%；庸鲽粗鱼油感官性状达到SC/T 3502—2016精制鱼油标准。庸鲽鱼油是一种具有较高应用价值和开发潜力的新鱼油资源。 |
| 英文摘要: |
| The oil was extracted from hippoglossus by enzyme method, and the extraction conditions and qualities of hippoglossus oil were analyzed. With the extraction rate of hippoglossus oil as index，the extraction conditions were optimized by response surface methodology on the basis of single factor experiment. The results showed that the optimal extraction conditions were obtained as follows:mass ratio of solid to liquid 1∶?2，dosage of enzyme 0.25%(based on the mass of total material)，mass ratio of animal protease to trypsin 1∶?1.5，pH 7.5，enzymolysis temperature 52?℃and enzymolysis time 2 h. Under the optimal extraction conditions，the extraction rate of hippoglossus oil reached 79.85%. The acid value, peroxide value, insoluble impurities, moisture and volatile matter met the standard of first grade crude oil in SC/T 3502—2016. The content of saturated fatty acids in hippoglossus oil was 67.26%, while the content of unsaturated fatty acids was 33.76%, in which the total content of EPA and DHA was 13.62%. The sensory properties of crude hippoglossus oil met the standard of refined fish oil in SC/T 3502—2016. So hippoglossus oil could be regarded as a kind of new fish oil resource with high application value and development potential. |
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