This book is an in-depth study of enzymes. A world so diverse and dynamic that it continues to confound yet impress the great minds studying it. This book aims to study the vast applications of enzymes in various industries, its extent and contribution to the society. By studying the various effects of different trans-esterification variables, namely, molarity of alcohol, reaction time, temperature, agitation, addition of water, and enzyme amount on molar conversion, many industries are going to witness remarkable changes. This book encapsulates such data and researches which will benefit experts and students alike.