5.1 Introduction 5.2 Metabolic pathways and metabolic control mechanisms 5.3 The industrial production of citric acid 5.4 The production of other TCA cycle intermediates

7.1 Introduction 7. 2 Origin and composition 7.3 Exopolysaccharide structure 7. 4 Medium composition for exopolysaccharide production

9.1 Introduction 9.2 The structure, roles and abundance of sterols and steroids 9.3 Selective degradation of the sterol side chain 9.4 Specific steroid interconversions and reactions 9.5 Transformation of other terpenoids

Preface The BIOTOL series of texts are designed to provide a self-study resource concerning the principles, practices and applications of biotechnology. This text is designed to explain how biotechnology may be applied to solve problems encountered in the production and use of organic chemicals in a wide

Contents How to use an open learning text Preface 1 An introduction to biotechnological innovations Industry G. Mijnbeek and C. K. Leach 2 Biocatalyst in organic chemical synthesis R O. Jenkins

§1 金属表面几何形状 §2支承面积曲线 §3金属的表面结构 §4表面能与表面张力 §5金属表面的化学性质 §6金属表层的组成

1定义: 由于机械作用间或伴有化学或电的作用,物体工件表面材料在相对运动中不断损耗的现象。 2说明: (1)磨损不仅局限于机械作用 (2)强调磨损是相对运动中产生的现象。 (3)磨损发生在物体工作表面材料上。 (4)磨损是不断损失或破坏的现象

危险化学品安全知识讲座

北京宏剑科迅计算机技术中心：常用化学软件新版本简介

True: Growing and dividing cells need to use substrate to provide energy and materials for growth, maintenance and product formation. In immobilised (non-growing) systems the energy and materials are only required for cell maintenance and product formation