Fish skin is rich in fish oil. As a kind of nutrient, refined fish oil contains oleic acid, EPA, DHA other unsaturated fatty acids, accounting for about 2.78% of the weight of fish skin. Fish skin is a kind of waste, if the fish oil can be extracted the fish skin, so that the resources can be recycled, it will be of great significance. The following fish oil manufacturers for you to introduce the extraction of fish skin fish oil method steps.
The method of extracting fish oil fish skin is characterized by the following steps:
1. Raw materials are crushed. The cleaned fish head skin are frozen at -20 -- 25℃ for 16-20h, rough-ground with water, then put into the homogenizer to obtain the homogenate;
2. Enzymatic hydrolysis, put the homogenate into a constant temperature pot, add 5-8 times the weight of the homogenate water, the temperature is controlled at 45-50℃, add neutral protein, react for 10-12 hours, collect the supernatant by precipitation;
3. Organic solvent extraction, enzymatic hydrolysis product after drying, add its weight of 5-10 times cyclohexane centrifugation, extraction 2-3 times, collect merge the cyclohexane layer;
4. Concentration purification: concentrate recover organic solvent to obtain crude fish oil. Wash crude fish oil 1-2 times with 10% sodium chlorate solution to obtain fish oil.
The above is the method step of extracting fish oil fish skin introduced by Jiangsu Weskang Food Science Technology Development Co., LTD., hope to help you. If you want to purchase fish oil capsules, welcome to inquire.
The company address：27 Dongyi Road, Hongze County Economic Development Zone, Huai 'an City, Jiangsu Province
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