文档介绍：豆粕固态发酵提取分离大豆肽的研究（可编辑）
豆粕固态发酵提取分离大豆肽的研究
山东轻工业学院
硕士学位论文
豆粕固态发酵提取分离大豆肽的研究
姓名:李明
申请学位级别:硕士
专业:食品科学
指导教师:宋俊梅
bleaching, and desalination and so on, the subject has established a soybean
peptides production process by solid-state fermentation of soybean meal. The process
characterized by its fermentation capacity, yield, low cost open up new way for
soybean peptides production. The main results are as follows:
Extraction: Study on the effect with different extraction solvent to extract
peptides, and ultimately select the hydrochloric acid as extracting agent. Then the
single factor experiments and orthogonal test were studied to determine the optimal
extraction conditions for the extraction time is 30min, extraction
temperature 50?,
extraction agent hydrochloric acid concentration of / L. Peptide extraction
rate was %Bleaching: Study on the effect with different bleaching agent, and ultimately
select powdered activated carbon as bleaching agent. Then the single factor
experiments and orthogonal test were studied to determine the optimum conditions for
powdered activated carbon dosage of %, temperature 30?, ,
bleaching time
. The bleaching rate was %and the loss rate of peptide was % in the
process of bleachingDesugar: In this study, we use ion-exchange method to remove sugar, through
the optimization of the adsorption and desorption process, and use - elutionIABSRACT
buffer to desorpt, desugared rate reached %, while recovery of peptides %
The final recovery rate of soybean peptide was % and the purity was
%, in line with the standards of soybean peptide powder ? 80%
Key words: solid-state fermentation; soybean peptide; extraction;
separation
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