黄柄曲霉降解杨梅栲胶的过程研究
首发时间:2016-06-17
摘要:为了研究微生物对杨梅栲胶的降解过程,利用黄柄曲霉对杨梅栲胶溶液进行降解,每24h取降解液,对降解过程中栲胶溶液的Zeta电位、粒径、电导率、pH等电化学性质及胶体化学性质进行了测定。利用普鲁士蓝法及正丁醇-盐酸法对降解过程中溶液的总酚及可溶性缩合单宁的含量变化进行测定。利用恒重法对降解过程中黄柄曲霉的微生物菌体量进行了测定。结果表明,微生物对杨梅栲胶溶液的降解大致分为3个阶段,分别在降解开始后的1-2天,3-8天和9-15天,各阶段根据微生物数量及活性的不同对杨梅栲胶溶液的各项性质造成了不同的影响。对比降解过程中总酚及聚黄烷醇的含量变化可以看出,微生物在生长过程中会对大分子聚黄烷醇进行降解,而其营养物质应该直接来源于溶液中的小分子酚类物质。
For information in English, please click here
Degradation process of bayberry extract by Aspergillus flavipes
Abstract: degradation liquid was collected every 24h in the degradation process of bayberry extract by Aspergillus flavipes, then electrochemical and colloid chemistry properties of extract solution including pH, conductivity, particle size, Zeta potentia were studied. The composition of phenolics and polyflavonoids were studied with Prussian blue and butanol-acid method respectively. Mycelium biomass was investigated by constant weight method. The results showed that the degradation process of bayberry extract by Aspergillus flavipes could be divided 3 stages, respectively in 1-2d, 3-8d, 9-15d after degradation. In each stage, the properties of tannin showed various change according to difference of microorganism quantity and activity. The different change of phenolics and polyflavonoids content indicated that Aspergillus flavipes could degrade polyflavonoids in growth process, but its nutrients should be directly from simple phenolics in the solution.
Keywords: leather chemistry and engineering bayberry extract microbial degradation Aspergillus flavipes
论文图表:
引用
No.4697108115494614****
同行评议
共计0人参与
勘误表
黄柄曲霉降解杨梅栲胶的过程研究
评论
全部评论0/1000