Figure 3.

Industrially Relevant Enzymes Discovered by Metagenomics and Grouped by their Sources. The published industrially important enzymes between the years 2014 and 2018 were compiled. Each of the publications found between 2014/01/01 and 2018/04/04 were manually checked and only industrially relevant enzymes identified by metagenomic analysis were included. We acknowledge the data collection by Berini et al., 2017 in the aid of compiling this figure [61]. Each of the enzymes were grouped into a class and a general source. The enzymes are grouped into the following enzymatic categories, Amylase, Cellulase, Chitinase, Lipase (including Esterases), Oxidoreductase (synopsised as Oxidored), Phytase (including Phosphatases), Protease and Other. Each of the sources of the metagenomic libraries were grouped into different environments including, Soil, Animal, Marine, Hot Springs, Food, Fresh Water, Waste Water, and Other. The “Other” class and group contained all data points that were not grouped into the defined categories. The graphic is based on the number of enzymes that were sourced from a specific environment.