Tuesday, August 19, 2008

Developments in Biotechnology

By Russell M. Stewart


Biotechnology can be defined in many ways and although different involved organizations do explain it in their own terms, ultimately, biotechnology is the use of biology as the foundation for developing various technologies as applied to research and product development. So, biotechnology can be used in food science, agriculture, environment, medicine and even robotics fields.

The human involvement in manipulating their environment is now at remarkable levels. From the most basic direct organism manipulations such as fermenting beer and culturing bacteria to advanced nucleotide-based organ regeneration and animal cloning, our knowledge and technology has advanced far beyond what anyone would've expected just a decade ago.

As far back as 6000 BC, we had discovered biotechnology, though, of course, we did not call it that then. That was when people first discovered how to ferment fruit juice into alcohol. We went on to preserve fruits with sugar and meat with salt for sustenance in winter - another instance of early biotechnology. Of course, it has only been studied as a science recently.

The biotechnology we know today started gaining attention only about twenty years ago, when genetics were discovered to be the primary element for synthesizing essential proteins in an organism. The discovery of DNA and the related development of molecular biology was the true beginning of biotechnology as we know it now.

The mid 80s brought a revelation in biotechnology - genetic structures could be modified by careful combinations between animals and plants. This introduction to transgenic organisms also developed an area for further research into disease resistance and productivity rate increases. Modern biotechnology is used in a variety of ways and the medical and biological research fields have managed to get the most benefit out of it. The methods used have gone beyond ordinary genetic transfers, to include actual plant-generated pharmaceuticals and substance production for antibiotics and insulin.

Modern biotechnology is practiced in three different categories - red, white and green. Red Biotechnology is when the genetically altered microorganisms are used to produce medical and pharmaceutical substances, such as proteins, vitamins, antibiotics and vaccines etc. It's also used in genome manipulation.

White Biotechnology is also known as bio-manufacturing and Grey Biotechnology. This is not yet a completely established field and involves manipulating live organisms to create important industrial chemicals. Some of the organisms used in these techniques include bacteria, enzymes, moulds and yeast.

Green Biotechnology is important in agriculture - making better produce that stays fresh and lasts longer, and is more nutritious. This is something people have been doing for a long time - making sturdier crops, like cross-bred wheat for example.

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