Comprehensive method for preparation of raffinose and gossypol from cottonseed meal
A comprehensive method, raffinose technology, applied in the preparation methods of peptides, chemical instruments and methods, preparation of sugar derivatives, etc., can solve the problems of incapable of maximizing the use of cottonseed meal value, waste of resources, etc., and achieve maximum value. , the effect of maximizing value
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Embodiment 1
[0023] Example 1: The comprehensive method for preparing raffinose and gossypol from cottonseed meal adopts the following process steps.
[0024] (1) Cotton embryo first passed 6 # The cottonseed oil is extracted by solvent oil spray; the cottonseed meal after leaching the oil is transported to the extractor by the scraper, and the raffinose and gossypol are sprayed with 90% methanol. The extraction temperature is 55°C and the extraction time is 60min. Obtain an extract containing raffinose and gossypol;
[0025] (2) The extract is filtered with a 400-mesh filter bag, and methanol is recovered under the conditions of a vacuum of 0.095Mpa and 60°C to obtain a raffinose solution containing a solid phase. The solution is separated and separated to obtain a raffinose-containing aqueous phase and cotton-containing The solid phase of phenol;
[0026] (3) Filter the aqueous phase containing raffinose with a 500 mesh filter bag, add 5% (g / ml) calcium hydroxide to the filtered aqueous phase,...
Embodiment 2
[0030] Example 2: The comprehensive method for preparing raffinose and gossypol from the cottonseed meal adopts the following process steps.
[0031] (1) Cotton embryo first passed 6 # The cottonseed oil is extracted by solvent oil spraying; the cottonseed meal after leaching the oil is transported by the scraper to the extractor, and the raffinose and gossypol are sprayed with 95% ethanol. The extraction temperature is 52℃ and the extraction time is 90min. Obtain an extract containing raffinose and gossypol;
[0032] (2) The extract was filtered with a 300-mesh filter bag, and ethanol was recovered under the conditions of a vacuum of 0.095Mpa and 55°C to obtain a raffinose solution containing a solid phase. After standing for 120 minutes, the aqueous phase and the aqueous phase containing raffinose were separated. The solid phase of gossypol;
[0033] (3) Filter the aqueous phase containing raffinose with a 600 mesh filter bag, add 2% (g / ml) iron sulfate to the filtered aqueous pha...
Embodiment 3
[0037] Example 3: The comprehensive method for preparing raffinose and gossypol from the cottonseed meal adopts the following process steps.
[0038] (1) Cotton embryo first passed 6 # The cottonseed oil is extracted by solvent oil spraying; the cottonseed meal after leaching the oil is transported by the scraper to the extractor, and the raffinose and gossypol are sprayed with ethanol. The extraction temperature is 45℃ and the extraction time is 120min. Gossypol extract;
[0039] (2) The extract was filtered with a 600-mesh filter bag, and ethanol was recovered under the conditions of a vacuum of 0.09Mpa and 65°C to obtain a raffinose solution containing a solid phase. After standing for 120 minutes, the aqueous phase and the aqueous phase containing raffinose were separated. The solid phase of gossypol;
[0040] (3) The aqueous phase containing raffinose is filtered with a 400 mesh filter bag, and the filtered aqueous phase is added with 1% (g / ml) calcium oxide and ferric chloride...
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