Introduction

Biotechnology today deals with far more than a single crop or a single drug — it covers the industrial-scale production of biopharmaceuticals and biological products using genetically modified microbes, fungi, plants, and animals. Its applications reach into therapeutics, diagnostics, genetically modified crops for agriculture, processed food, bioremediation, waste treatment, and even energy production. Turning a laboratory discovery like this into a working process usually comes down to three things: finding the best possible catalyst (usually an improved microbe or a purified enzyme), engineering the right conditions for that catalyst to act efficiently, and developing downstream processing methods to purify the final protein or organic compound. With that broad picture in mind, this chapter looks at how biotechnology has actually been put to work — starting with food production and health.