Nucleoside ingredient obtained from ocean low-value shellfish through separation and purification and preparation method and application thereof
A low-value shellfish, separation and purification technology, applied in the field of marine low-value shellfish, can solve the problems of low purity, long production cycle, and cumbersome steps in the separation process, and achieve reasonable process design, short production cycle, and strong operability Effect
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Embodiment 1
[0030] A method for separating and purifying nucleoside components from marine low-value shellfish, comprising the following steps:
[0031] (1) Preparation of the alcohol-precipitated supernatant of four-cornered clam: take fresh four-cornered clam soft body, wash and drain, weigh, add 3 times the amount of water to decoct, heat and reflux twice, each time for 45 minutes, filter, and combine the filtrate , concentrated, centrifuged to remove the precipitate, to obtain the supernatant, add ethanol to make the ethanol concentration 80%, let it stand overnight, and suction filter to obtain the supernatant; the supernatant is concentrated until it has no alcohol smell, and is desalted by electrodialysis with a voltage of 30V , the loading concentration is 30g (solid content) / L, and the desalination time is 1.5h.
[0032] (2) Coarse separation of macroporous adsorption resin column: take 1.6 times column volume of the four-cornered clam soft body water extraction alcohol precipita...
Embodiment 2
[0040] A method for isolating and purifying nucleoside components from clam philippines, comprising the following steps:
[0041] (1) Preparation of the ethanol-precipitated supernatant of Philippine clam: take fresh Philippine clam software, wash and drain, weigh, add 3 times the amount of water, heat and reflux twice, each time for 60 minutes, filter, and combine the filtrate , concentrated, centrifuged to remove the precipitate, to obtain a supernatant, added ethanol to make the ethanol concentration 75%, allowed to stand overnight, and filtered to obtain a supernatant. The supernatant was concentrated until there was no alcohol smell, and desalted by electrodialysis with a voltage of 20V, a sample concentration of 20g (solid content) / L, and a desalting time of 2h.
[0042](2) Coarse separation by macroporous adsorption resin column: take 2 times the column volume of the supernatant of philippine clam software prepared in step (1) by water extraction and ethanol precipitati...
Embodiment 3
[0050] A method for separating and purifying nucleoside components from cockles, comprising the following steps:
[0051] (1) Preparation of ethanol-precipitated supernatant of cockles: take fresh cockles soft body, wash and drain, weigh, add 4 times the amount of water, heat and reflux twice, 50min each time, filter, combine filtrates, concentrate, and centrifuge Remove the precipitate to obtain a supernatant, add ethanol to make the ethanol concentration 80%, let stand overnight, and filter with suction to obtain a supernatant. The supernatant was concentrated until it had no alcohol smell, and was desalted by electrodialysis with a voltage of 30V, a sample concentration of 34g (solid content) / L, and a desalination time of 1.5h.
[0052] (2) Coarse separation by macroporous adsorption resin column: take 1.5 times the column volume of the water-extracted and ethanol-precipitated supernatant of the clam software prepared in step (1), put it on the SP207 type macroporous adsorp...
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