Enzymes, Nature’s catalysts, are increasingly used for the degradation of complex sugars such as starch and cellulose in industries such as food processing, brewing and biofuels. New enzymes are normally found by the slow process of assaying individual cultured microorganisms. Discovery can be speeded up enormously through metagenomics, wherein DNA is extracted from samples such as soil and useful genes, hence enzymes, identified by sequencing and screening. Importantly this also allows access to the otherwise inaccessible 95% of genes from non-culturable organisms.