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 range of business sectors

9.1 Introduction 9.2 The structure, roles and abundance of sterols and steroids 9.3 Selective degradation of the sterol side chain

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

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 5.5 The industrial production of itaconic acid

Efficiency of growth and product formation 3.0 Introduction 3.1 Growth stoichiometry 3.2 Relationships between product formation and growth 3.3 Determination of maintenance energy requirement and maximum biomass yield

An introduction to biotechnological innovations in the chemical industry 1.1 Introduction 1.2 Production processes 1.3 Choice of production process

1、掌握:病毒的结构,化学组成与作用。 2、熟悉:病毒增殖的方式;病毒复制的五个阶段;病毒对理化因素的抵抗力。 3、了解:病毒的大小与形态;病毒生物合成的基本步骤丶病毒复制的异常现象

§4－1 空间力沿坐标轴的分解与投影 §4－2 空间汇交力系的合成与平衡 §4－3 空间力偶理论 §4－6 空间任意力系的平衡条件和平衡方程 §4－5 空间任意力系向已知点的简化 §4－4 力对点之矩与力对轴之矩

几种水解酶:芳基硫酸酯酶(Arylsulphatase(ec3.1.6.)),葡萄糖苷酶 glucosidase(ec3.2.1.21)和磷酸单酯酶(phosphmonoester(e3.1.3)测定: 这三种酶的测定都是依据人工合成底物(p-nitrophenyl,p- -nitrophenyl glucoside andp- -nitrophenyl phosphate, respectively)裂解后释放的p- -nitrophenol的量来测定 Arylsulphatase(ec3.1.6.1):称取1g土(湿重,与4m1500mM乙酸缓冲液(acetate buffer)(pH5.8)和1ml底物(25mM)混匀

一、概述 颜色:人对眼睛视网膜接受到的光信号作出反应,在大脑中产生的某种感觉。色素:食品中呈现各种颜色的物质。 色素分类: ①来源:天然色素和人工合成色素;动物色素(红血素、虾青素等)、植物色素(叶绿素、胡箩卜素、花青素等)、微生物色素(红曲色素); ②溶解性:脂溶性和水溶性;