A method for comprehensively extracting polyunsaturated fatty acids and polysaccharides from seaweed
A technology for comprehensive extraction of unsaturated fatty acids, applied in the field of comprehensive extraction of polyunsaturated fatty acids and polysaccharides, can solve problems such as environmental pollution, waste of seaweed and organic solvents, and achieve the effects of reducing costs, improving resource utilization efficiency, and increasing contact surfaces.
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Embodiment 1
[0038] The method for comprehensively extracting polyunsaturated fatty acids and polysaccharides from seaweed of the present invention comprises the following steps:
[0039] Polyunsaturated Fatty Acid Extraction:
[0040] A. Soak the sargassum in tap water equivalent to 20 times its weight for 5 minutes, then wash it with tap water and deionized water each time, and then bake it at 80°C for 10 hours; after drying, pulverize it into 10 mesh sargassum powder, Disperse Sargassum powder in petroleum ether according to the ratio of material to liquid of 1:5, carry out ultrasonic crushing, the ultrasonic power is 60W, the crushing time is 5min, and the temperature is maintained at 80°C during crushing;
[0041] B, the suspension after ultrasonic crushing is carried out solid-liquid separation, and in the liquid after separation, petroleum ether is supplemented as extraction solvent, so that the material-to-liquid ratio of seaweed powder and extraction solvent is 1:5, and extraction...
Embodiment 2
[0050] The method for comprehensively extracting polyunsaturated fatty acids and polysaccharides from seaweed of the present invention comprises the following steps:
[0051] Polyunsaturated Fatty Acid Extraction:
[0052] A. Soak the sargassum with tap water equivalent to 30 times its weight for 10 minutes, then wash it twice with tap water and deionized water, and then bake it at 78°C for 12 hours; after drying, pulverize it into 20 mesh sargassum powder, The sargassum powder was dispersed in petroleum ether according to the ratio of material to liquid of 1:8, and ultrasonically crushed, the ultrasonic power was 65W, the crushing time was 10min, and the temperature was maintained at 79°C during crushing;
[0053] B, the suspension after ultrasonic crushing is carried out solid-liquid separation, and in the separated liquid, petroleum ether is supplemented as extraction solvent, so that the material-to-liquid ratio of seaweed powder and extraction solvent is 1:8, and extracti...
Embodiment 3
[0062] The method for comprehensively extracting polyunsaturated fatty acids and polysaccharides from seaweed of the present invention comprises the following steps:
[0063] Polyunsaturated Fatty Acid Extraction:
[0064] A. Soak the sargassum with tap water equivalent to 40 times its weight for 15 minutes, then wash it with tap water and deionized water for 3 times, and then bake it at 76 ° C for 14 hours; after drying, pulverize it into 30 mesh sargassum powder, Disperse Sargassum powder in petroleum ether according to the ratio of material to liquid of 1:10, and carry out ultrasonic crushing, the ultrasonic power is 70W, the crushing time is 15min, and the temperature is maintained at 78°C during crushing;
[0065] B, the suspension after ultrasonic crushing is carried out solid-liquid separation, and in the separated liquid, petroleum ether is supplemented as extraction solvent, so that the material-to-liquid ratio of seaweed powder and extraction solvent is 1:10, and ext...
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