一株聚乙烯醇降解菌的降解特性

ZHANG Xing; DU Guocheng; CHEN Jian

您当前的位置：

首页 >

文章列表页 >

一株聚乙烯醇降解菌的降解特性

更新时间：2025-12-10

- 一株聚乙烯醇降解菌的降解特性
- CIESC Journal Issue 7, (2006)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 July 2006，
  
  Published：25 July 2006
- 稿件说明：
移动端阅览
ZHANG Xing, DU Guocheng, CHEN Jian. 一株聚乙烯醇降解菌的降解特性[J]. CIESC Journal, 2006, (7).
DOI：

ZHANG Xing, DU Guocheng, CHEN Jian. 一株聚乙烯醇降解菌的降解特性[J]. CIESC Journal, 2006, (7). DOI：

摘要

从腐败的PVA胶水中分离到一株能高效降解并矿化聚乙烯醇的细菌Xa-5，经初步鉴定属于黄单胞菌属（Xanthomonas sp.）.该菌株生长需要复杂的有机氮，蛋白胨和牛肉膏可提高该菌对聚乙烯醇的降解速率，其中蛋白胨的加量对降解聚乙烯醇影响较大.该菌降解聚乙烯醇要求的pH范围较宽.不同聚合度的聚乙烯醇对其降解速率影响不大.该菌的降解过程可能是聚乙烯醇首先吸附在细胞表面，然后进行氧化降解.在静息细胞降解过程中，以TOC表示，1 g8226;L-1（DCW）菌体可在52 h内将1 g8226;L-1聚乙烯醇基本矿化，但该菌株的PVA氧化酶酶活、脱氢酶酶活和PVA降解总酶活则较难测出.

Abstract

A bacterium，isolated from putrified poly(vinyl alcohol)(PVA) gum，could degrade completely poly（vinyl alcohol）.It belongs to the genus of Xanthomonas and needs complex organic nitrogen for growth.The biodegradation rate of PVA was increased by addition of beef extract and peptone F403，in which peptone had more influence on PVA degradation.The bacterium could adapt to a broad pH range for PVA degradation.The polymerization degree of PVA did not show any significant influence on PVA biodegradation rate.The results of resting cells culture showed that PVA was firstly adsorbed and then degraded by the cells.1 g8226;L-1 of PVA could be completely degraded as expressed with TOC by 1 g8226;L-1 of resting cells after 52 h cultivation.However it was difficult to determine the activity values of PVA oxidase，dehydrogenase and total degrading enzyme in this strain.

关键词

Keywords

references

Views

428

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Engineering verification and NO emission control of rare earth Y2O3-based catalytic coatings on a metal fiber surface burner

Research on the characterization of the molecular weight and its distribution of perfluoropolyether

Optimization of heat storage and release cycle performance of Ca(OH)2/CaO indirect reactor

Methods of adaptive prediction and abnormal states traceability for sulphur content in flue gas desulfurization process

Study on dissolution kinetics of erythromycin thiocyanate

Related Author

No data

Related Institution

No data

⁰