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From 2014.igem.org

Odor_Library

Escherichia coli, a bacterium commonly used in lab, naturally produces the odor of stool. The pleasant odor library aims to not only eliminate the unpleasant smell in E. coli, but also to produce appreciable ones, like those of jasmine, banana, and lemon. We hope to establish a database of gene sequences that produce the compounds corresponding to various odors that can be assembled with a standard promoter in E. coli. We are using a study that statistically concluded the ten primary categories of odor that human beings perceive through an analysis of words used to describe smell in order to decide the smells we will produce. By covering all or most of the ten categories, we will be able to produce a large variety of odors.