FIELD: biotechnologies.
SUBSTANCE: method includes vegetable material fractionation, fraction autoclave treatment with three times washing-off, the first acid hydrolysis with three times washing-off, alkaline hydrolysis with three times washing-off, the second acid hydrolysis with three times washing-off, the first bleaching with three times washing-off; the second bleaching with four times washing-off. Additional homogenisation stage is possible.
EFFECT: according to invention the method does not require the use of expensive equipment, does not propose the use of high-toxic reagents, includes not complicated process operations, differs by the production volume.
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