干旱区生态环境知识资源中心(Arid): 一株产絮凝剂的类芽孢杆菌新种及絮凝特性研究

Arid

	一株产絮凝剂的类芽孢杆菌新种及絮凝特性研究
其他题名	A Novel Strain of Genus Paenibacillus:Its Characteristics of Microbial Flocculation
	谢玉清; 茆军; 张志东; 王玮; 张丽娟; 顾美英
来源期刊	环境科学与技术
ISSN	1003-6504
出版年	2014
卷号	37 期号:4 页码:7-10,67
中文摘要	从新疆荒漠地区分离到一株产高效絮凝剂的菌株Y24-1,根据菌株的形态学特征和16S rRNA 基因序列比对分析,确定该菌株为类芽孢杆菌属(Paenibacillus)新种。该菌絮凝产物的发酵动力学表明,其属于I 型发酵,即菌体生长和产物合成偶联;在发酵42 h 时絮凝活性最高,可达82.7%。絮凝特性研究表明,絮凝产物具有较好的热稳定性,最适絮凝pH 为6.0,Ca~(2+)、Mg~(2+)等二价金属阳离子具有明显的助凝效果。该菌发酵产物能有效的去除多种重金属离子和色素,特别是对Pb~(2+)和Hg~(2+)的吸附率分别可达到90.5%和78.7%,显示了其在环境工程中良好的应用前景。
英文摘要	An effective flocculant-producing strain named Y24-1 was isolated from the soil of a desert area in Xinjiang. According to morphological characteristics and 16S rRNA gene sequence analysis,strain Y24-1 was identified as a novel species belong to the genus Paenibacillus. The study on fermentation dynamics of the flocculant of the strain indicated that the fermentation belonged to type I;the highest flocculating activity occurred in 42 h of fermentation,and the flocculation rate for kaolin suspension was 82.7%. The flocculant featured temperature stability,the optimal pH being 6.0 for flocculation; meanwhile,it was found that divalent metal ions such as Ca~(2+) and Mg~(2+) could promote the flocculation remarkably. In addition,the fermentation products had the capacities for de-colorizing of dye-stuff wastewater and heavy metal removal, especially for Pb~(2+) and Hg~(2+) with the adsorption rates being 90.5% and 78.7% respectively.
中文关键词	类芽孢杆菌 ; 微生物絮凝剂 ; 絮凝特性
英文关键词	Paenibacillus bio-flocculant flocculation characteristics
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:5105461
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231365
作者单位	新疆农业科学院微生物应用研究所, 乌鲁木齐, 新疆 830091, 中国
推荐引用方式 GB/T 7714	谢玉清,茆军,张志东,等. 一株产絮凝剂的类芽孢杆菌新种及絮凝特性研究[J],2014,37(4):7-10,67.
APA	谢玉清,茆军,张志东,王玮,张丽娟,&顾美英.(2014).一株产絮凝剂的类芽孢杆菌新种及絮凝特性研究.环境科学与技术,37(4),7-10,67.
MLA	谢玉清,et al."一株产絮凝剂的类芽孢杆菌新种及絮凝特性研究".环境科学与技术 37.4(2014):7-10,67.