共查询到19条相似文献,搜索用时 173 毫秒
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防霉防菌剂是一类重要的精细化学品,已广泛地应用于工业水处理、造纸、皮革、涂料、日化、纺织、金属加工、木材防护、食品包装、粮食仓储、精密仪器等国民经济的众多领域。作为有影响力的全国防霉防菌技术研讨及产品交流会已成功地举办了三届,受到了国内外同行的好评。 相似文献
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简述微生物组成和水性涂料易霉腐等要素,以KM—01涂料漆膜抗霉除菌剂为例,介绍理想的涂料漆膜抗霉除菌剂抗霉性能的测试和评价方法。 相似文献
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工程塑料受霉菌腐蚀后,不仅外观难看,其性能也会明显下降,因此探讨工程塑料的防霉性问题就显得非常重要和有意义.简述了霉菌对塑料制品造成的危害及原因,介绍了能用于工程塑料防霉的4种防霉剂以及测试塑料制品长霉程度的标准,为研究工程塑料防霉问题提供了一定的依据。 相似文献
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目的建立黑曲霉实时荧光PCR检测方法。方法对6种主要病原曲霉(黑曲霉、烟曲霉、杂色曲霉、构巢曲霉、土曲霉及黄曲霉)的GAPDH基因序列进行比对分析,选择黑曲霉特异位点设计引物和探针,对黑曲霉进行实时荧光PCR扩增,并检测该方法的灵敏度及特异性。结果该方法可检出2.78×10-10μg/ml的黑曲霉基因组DNA;对亲源关系较近的11株不同种曲霉及4株其他属临床常见的病原真菌进行实时荧光PCR检测,未发现有交叉反应。结论已建立了灵敏度高、特异性好的快速检测黑曲霉的实时荧光PCR方法。 相似文献
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目的 构建Aspergillus oryzae新的红色表现型菌株用于天然色素生产。方法 构建Aspergillus oryzaeRIB40 cDNA文库,应用BLAST网络服务对Aspergillus oryzae RIB40 cDNA文库的EST数据进行同源性比较,从EST克隆扩增Aspergillus oryzae类SAICAR合成酶基因(sh1919f片段),反向插入pUSA真核表达载体。结果 完成反义表达载体的构建。Aspergillus oryzae类SAICAR合成酶氨基酸序列与Pichia jadinii、Saccharomyces cerevisiae和Schizosac-charomyces pombe的SAICAR合成酶氨基酸序列具有高度同源性。结论 类SAICAR合成酶基因反义表达载体的构建为其转染入Aspergillus oryzae菌株筛选红色突变菌株奠定了实验基础。 相似文献
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超声辅助皂化提取黑曲霉中辅酶Q_(10)的研究 总被引:2,自引:0,他引:2
通过高效液相色谱鉴定证实黑曲霉菌体中含有辅酶Q10。采用正交实验设计法,研究了超声辅助皂化提取黑曲霉中辅酶Q10的最佳工艺条件。实验表明,焦性没食子酸添加量、皂化温度、超声时间为影响皂化提取效果的显著因子。在75%乙醇溶剂下,最佳提取工艺条件为:焦性没食子酸加入量为培养物的8%,皂化温度40℃,皂化时间45 min,醇碱浓度7.5 g NaOH/75 mL乙醇,超声功率280 W。最优条件下辅酶Q10提取率为0.421 mg/g干培养基,明显优于常规皂化提取。 相似文献
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Dr. Laura H. D. Ghandhi Dr. Stefan Bidula Dr. Christopher M. Pask Dr. Rianne M. Lord Prof. Patrick C. McGowan 《ChemMedChem》2021,16(20):3210-3221
This report highlights the synthesis and characterization of ten new bis(N-picolinamido)cobalt(II) complexes of the type [(L)2CoX2]0/2+, whereby L=N-picolinamide ligand and X=diisothiocyanato (−NCS), dichlorido (−Cl) or diaqua (−OH2) ligands. Single crystal X-ray (SC-XRD) analysis for nine of the structures are reported and confirm the picolinamide ligand is bound to the Co(II) center through a neutral N,O binding mode. With the addition of powder X-ray diffraction (PXRD), we have confirmed the cis and trans ligand arrangements of each complex. All complexes were screened against several fungal species and show increased antifungal activity. Notably, these complexes had significant activity against strains of Candida albicans and Aspergillus fumigatus, with several compounds exhibiting growth inhibition of >80 %, and onecompound inhibiting Aspergillus fumigatus hyphal growth by >90 %. Conversely, no antifungal activity was exhibited toward Cryptococcus neoformans and no cytotoxicity towards mammalian cell lines. 相似文献
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Ismail Kiran Hande N Yildirim James R Hanson Peter B Hitchcock 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》2004,79(12):1366-1370
The microbial transformation of racemic diisophorone was investigated using the plant pathogen Aspergillus niger as a biocatalyst. Incubation of diisophorone with Aspergillus niger gave 8α‐hydroxy‐diisophorone, 10‐hydroxydiisophorone and 17‐hydroxydiisophorone on the basis of their spectroscopic data including two‐dimensional NMR analysis, nOe and an X‐ray crystallographic study. The antifungal activity of diisophorone against Aspergillus niger was also examined. Copyright © 2004 Society of Chemical Industry 相似文献