Fate of Ochratoxin A and Citrinin During Malting and Brewing Experiments

The fate of ochratoxin A and citrinin during malting and brewing processes was studied by the use of naturally contaminated lots of barley, as well as by the addition of crystalline toxins to the mash. Complete degradation was observed for ochratoxin A from moderately contaminated barley lots and for citrinin added to mash. The use of highly contaminated barley resulted in transmission of ochratoxin A into the beer, but only 2 to 7% of the initial content was detected, corresponding to levels of 6 to 20 mug of ochratoxin A per liter of beer. Barley lots with this high ochratoxin contamination (1,000 to 5,000 mug/kg) will be easily detected and, therefore, because of pronounced deterioration, should be rejected during inspection upon admittance to the breweries.     

The Setting and Marking of Microbiology Examinations

A rapid, simple method for testing and improving a student's ability to detect and correct misuse of scientific English is described. Performance in such Precision Tests was positively correlated with performance in conventional examinations, and use of these tests in the manner described was followed by an improvement in examination performance. The data discussed in this paper concern the use of Precision Tests in the teaching of biochemistry, but the tests may also prove useful in other biological disciplines.     

微生物学数字课程的设计与应用

微生物学数字课程是以微生物学知识内容构建、借助高等教育出版社云课程平台传播的课程。作者编著的《微生物学数字课程》已由高等教育出版社出版,本文介绍了微生物学数字课程的设计与教学应用。该课程结构设计包括章节名称、作业、基本问题、小组专题讨论、课程论文、自由讨论区;资源设计包括教学录像、电子资源(教学课件、动画等)、网上自测;交互设计包括讨论、留言、疑难解答等;构建出课前教师在平台发布课程资源和学习任务—学生登录平台观看资源—课中教师进行疑难问题解答及知识总结—学生进行问题讨论、课题成果汇报—课后学生提交作业及网上自测的教学模式。教学实践结果表明,微生物数字课程对提高学生的学习兴趣、合作学习能力、信息技术素养及学习能力具有积极的作用。     

石油微生物学在中国科学院微生物研究所的发展

本文较详尽地综述了中国科学院微生物研究所50多年在涉及石油微生物学的科学研究成果,包括微生物勘探法和气态烃氧化菌、微生物与油气形成、有机酸的生产、油田微生物与提高采油量、微生物提高采油的现场应用.共引用了105篇文献.     

我国环境微生物学发展现状与面临的挑战—“第十三次全国环境微生物学学术研讨会”专刊序言

第十三次全国环境微生物学术研讨会于2010年11月在南京大学顺利召开,本次会议围绕"环境微生物与社会发展"的主题,在环境微生物学研究前沿、环境微生物与节能减排、环境微生物与气候变化、环境微生物资源发掘与应用、环境保护工程、污染环境生物修复、蓝藻水华衍生污染物与生态风险等诸多领域阐述了最新研究进展并展开了深入的研讨。为了展现国内环境微生物及相关交叉领域科研工作者取得的最新进展,《微生物学通报》针对"第十三次全国环境微生物学学术研讨会"组织出版了这期"环境微生物专刊",期望该专刊的出版有助于促进我国环境微生物学相关领域的交流与发展。     

RAPD技术及其在微生物学方面的应用

198 0年 ,Ｂｏｔｓｅｉｎ提出ＤＮＡ限制性片段长度多态性 (ＲＦＬＰ)可以作为遗传标记 ,从此开创了直接应用ＤＮＡ多态的新阶段。 80年代后 ,ＤＮＡ多聚酶链式反应 (ＰＣＲ)的发展 ,使直接扩增ＤＮＡ的多态性成为可能 ,并在此基础上产生了许多种新型分子标记 ,诸如扩增片段多态性 (ＡＬＦＲ)、串联重复序列(ＶＮＴＲ)、单链构型多态性 (ＰＣＲ ＳＳＣＰ)、序列特异扩增区域 (ＳＣＡＲ)、随机扩增多态性ＤＮＡ(ＲＡＰＤ)等。而ＲＡＰＤ是较为突出的一种。ＲＡＰＤ是由Ｗｉｌｌｉａｍｓ和Ｗｅｌｓｈ在 1 990年各自独立发现的一种ＤＮＡ多态检…     

Microbiology

A selection of interesting papers that were published in the two months before our press date in major journals most likely to report significant results in microbiology.     

Microbiology

A selection of interesting papers that were published in the two months before our press date in major journals most likely to report significant results in microbiology.     

Microbiology

A selection of interesting papers that were published in the two months before our press date in major journals most likely to report significant results in microbiology.     

Microbiology

A selection of interesting papers that were published in the two months before our press date in major journals most likely to report significant results in microbiology.