Extraction refining method for aloe-polysaccharide
An aloe vera polysaccharide and refining method technology, applied in the field of aloe vera polysaccharide extraction and refining, can solve the problems such as no known aloe vera polysaccharide extraction and refining method, and achieve the effect of simple extraction and refining method
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Embodiment 1
[0017] Embodiment 1: the processing of macroporous resin
[0018] ①Pretreatment of macroporous resin
[0019] The used resin model of the present invention has AB-8, X-5 type, H107 type, S-8 type, D3520 type, D4006 type, D4020 type, NKA-9 type (above is Tianjin Nankai University chemical plant production), XAD-2 Type, XAD-3 type, HP type (the above is produced by Tianjin Rubber Factory), SIP1300 type, SIP1400 type, M3-type (the above is produced by Shanghai Pharmaceutical Industry Research Institute), ABD-4 type, DM-130 type (above Produced for Jining Shandong Lukang Pharmaceutical Co., Ltd.), D 101 Type (produced by Tianjin Pesticide Factory), 1300-1 type, 1300-66 type (produced by Yangzhou Pharmaceutical Factory), 100 type, 500 type, 600 type (produced by Cangzhou Encheng Chemical Co., Ltd.), etc. The processing principles and steps for these resins are very similar. Hereby take the AB-8 type macroporous adsorption resin as an example to introduce as follows:
[0020] Th...
Embodiment 2
[0024] Embodiment 2: the preparation of aloe crude polysaccharide
[0025] Weigh 300g of fresh aloe leaves, cut into small pieces, add 3500ml of distilled water, extract in a water bath at 40-80°C for 2 hours, and extract three times. After letting cool, filter the residue with gauze, concentrate the combined extract to 300-800ml, centrifuge, add 95% ethanol to the supernatant, so that the ethanol content in the solution reaches 50%-80%, precipitate polysaccharides, and vacuum-dry. That is to obtain the crude polysaccharide of aloe vera.
Embodiment 3
[0026] Embodiment 3: Aloe vera crude polysaccharide refining method
[0027] 40g of prepared aloe crude polysaccharide is dissolved in 1000ml distilled water, and 20%~50% trichloroacetic acid solution or other organic acid solutions (for example, trifluoroacetic acid etc.) are added, so that the final concentration of trichloroacetic acid reaches 2%~6 %, after standing overnight at 4°C, the precipitate was removed by centrifugation. Concentrate the supernatant to 200-500ml, and slowly add the supernatant to the macroporous resin column bed with a dropper (the macroporous resin can be AB-8 type, X-5 type, H107 type, S-8 type , D3520, D4006, D4020, NKA-9, XAD-2, XAD-3, HP, SIP1300, SIP1400, M3-, ABD-4, DM-130, D 101 type, 1300-1 type, -66 type, 100 type, 500 type, or 600 type, etc., the refining effect is the same). Open the stopcock and at the same time begin to collect the effluent. After the sample solution completely enters the resin column bed, rinse it with distilled wa...
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