The functional groups and molecular weight distributions of oxidization degradation products of valonea tannins were elucidated by IR and GPC analyses.
通过红外波谱、凝胶渗透色谱等方法测定了橡碗栲胶氧化降解产物的官能基、分子量及分 布，证明它是一类多元酚羧酸钠盐的混合体系，其分子量随氧化程度的增加而降低。
Microbes were successively incubated in media with increasing valonia tannin concentration.
以培养基的COD去除率为指标,通过逐步增加培养基中橡碗单宁的浓度,进行微生物驯化,从橡碗堆放场土壤中选育出可降解橡碗单宁的微生物菌株,经鉴定该菌株初步确定为曲霉。
A strain, proved to be effective in degrading Valonia tannin into ellagic acid, was isolated from nature according to its high capacity of removing chemical oxygen demand(59%).
以COD去除率为指标 ,筛选出可降解橡碗单宁的微生物菌株 ,其COD去除率为5 9%。
Valoneaic seed not only contain abundant wild plant starch (the contant of starch in the valoneaic seed reaches to 58.
橡碗子除富含野生植物淀粉 (淀粉含量高达 58。