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3篇 您的检索式:作者名="Constantine Uwaremwe"
    题名 作者 年代 出处 被引量
1节杆菌属细菌处理有机物和重金属污染物的研究进展显示文摘有机污染物和重金属造成的环境问题日益严峻。节杆菌属细菌具有很强的环境适应性和抗逆性,广泛分布于各种环境特别是土壤和水体中。研究发现该属菌株具有高效降解环境中的有机污染物和吸附重金属的能力,被用于污染水体和土壤等的生物修复研究与应用。该文从节杆菌属降解污染物菌株、降解污染物的种类、降解机理和影响因素的研究等方面,介绍了节杆菌处理污染物的研究进展。李娟 Constantine Uwaremwe 冷艳 张晓华 李师翁 陈熙明 2017环境科学与技术2017,40,10:24
2一株产碱性CMC酶链霉菌的筛选及酶学性质研究显示文摘经CMC平板分离筛选,从青藏高原牦牛粪样品中获得一株产碱性CMC酶能力较强的菌株Tibet-YD4524-3,16S rRNA基因序列初步鉴定其为链霉菌类(Streptomyces sp.)菌种.生物学特性的研究表明,Tibet-YD4524-3产酶的最佳碳源为可溶性淀粉和羧甲基纤维素钠,最佳氮源为酵母膏,最适产酶温度为30℃,最适产酶p H值为8.0.酶学性质初步研究显示,Tibet-YD4524-3产生的CMC酶最适反应温度40℃,最适反应p H值为8.5,在碱性条件下CMC酶具有较高的酶活性和较好的稳定性.金属离子K^+、Mn^(2+)和Fe^(2+)对Tibet-YD4524-3所产CMC酶的反应具有促进作用,金属离子Cu^(2+)、Pb^(2+)和Hg^(2+)具有抑制CMC酶反应的作用.冷艳 UWAREMWE Constantine 孔凯 李师翁 2018兰州交通大学学报2018,37,5:3
3An Arthrobacter strain isolated from desert soils in the region of Shule River (China) can convert cellulose to potential biofuels显示文摘In this study, an Arthrobacter strain from desert soils in the Shule River Valley was isolated, China, which has a strong ability to convert cellulose to potential biofuel. In total, from five soil sample sites, six strains were isolated that grew well on CMC-Agar medium, with colony diameters ranging from 3~4 mm, among them, one strain had a strong ability to produce biofuels. Based on morphological and phylogenetic analyses, the isolate was identified as Arthrobacter nitroguajacolicus strain SLP1. The chemical properties of the biofuel extracted from the fermentation broth of strain SLP1 were analysed by gas chromatography and mass spectrometry. A total of 41 kinds of carbon compounds were identified, of those,five were detected at peak concentration and the carbon numbers ranged from C16–C22, which can be classified as alkanes,alkenes, and alcohols. Furthermore, biofuel-producing ability of strain SLP1 was enhanced using NTG mutagen. In a total of 94 mutant strains, four show the most enhanced biofuel production relative to the original strain. Biofuel production conditions were optimized by growing the four mutant strains on LB-Agar and SS-Agar medium.Constantine Uwaremwe ShiWeng Li XiMing Chen Maurice Ngabire Tawheed Mohammed Elheesin Shareef Juan Li MingHui Wu GuoLi Li 2017Research in Cold and Arid Regions2017,9,2:0
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