Genetic, Mathematical, and Anthropological Background
1.1 The Scope of Population Genetics Before getting too far into the application of population genetics to the human species, it is useful to answer the basic question “What is…
Natural Selection In Human Populations
7.1 Case Studies of Natural Selection in Human Populations The following case studies are not meant to represent everything that we know about natural selection in human populations, but instead…
Human Population Structure and History
9.1 Case Studies of Human Population Structure The three case studies chosen here (out of hundreds, if not thousands, of possibilities) show how culture, environment, and geography have affected the…
Families of compounds that occur in essential oils
Chapter 3 Families of compounds that occur in essential oils The chemistry of essential oils is organic and vast. To avoid confusion a formal system was developed: the IUPAC (International…
Organic chemistry
Chapter 2 Organic chemistry IMPORTANT CONCEPTS IN ORGANIC CHEMISTRY Essential oil chemistry is a part of organic chemistry, which covers a vast range of compounds. Early ideas suggested that organic…
Composition of essential oils and other materials
Chapter 7 Composition of essential oils and other materials This chapter will look at the composition of a number of popular aromatherapy materials. There is a lot of published data…
Fundamentals of chemistry
Chapter 1 Fundamentals of chemistry A knowledge of the materials we are using will help us to understand their structure and properties. This in turn will allow us to use…
Analytical techniques
Chapter 5 Analytical techniques It is important that any oil used in aromatherapy is of the highest quality and purity. Essential oils have widespread applications including perfumery, pharmaceutical products and…
Handling, safety and practical applications for use of essential oils
Chapter 8 Handling, safety and practical applications for use of essential oils INTRODUCTION AND BACKGROUND A knowledge of the chemical and physical properties of the essential oils and materials used…
Processing, extraction and purity
Chapter 4 Processing, extraction and purity EXTRACTION FROM NATURAL PRODUCTS When considering quality and composition of an essential oil the method of extraction plays a crucial role. An essential oil…
