A very general definition for industrial biotechnology provided the European industry association EuropaBio in 2003: "White Biotechnology is the application of nature's toolset to industrial production." 
Today, EuropaBio explains "Industrial Biotechnology" as follows:
What is industrial biotechnology?
"Industrial or white biotechnology uses enzymes and micro-organisms to make biobased products in sectors: such as chemicals, food and feed, detergents, paper and pulp, textiles and bioenergy (: such as biofuels or biogas). In doing so, it uses renewable raw materials and is one of the most promising, innovative Approaches towards lowering greenhouse gas emissions. The application of industrial biotechnology has been proven to make significant Contributions towards mitigating the impacts of climate change in synthesis and other sectors. In addition to environmental benefits, biotechnology can Improve industry's performance and product value and, as the technology matures and Develops, white biotechnology will yield more and more viable solutions for our environment. These innovative solutions bring added benefits for both our climate and our economy." 
 EuropaBio White Biotechnology: Gateway to a More Sustainable Future. Lyon 2003, p 7 URL: www.europabio.org/white-biotechnology-gateway-more-sustainable-future (release: 2012-11-13)
 EuropaBio: What is industrial biotechnology? URL: www.europabio.org/what-industrial-biotechnology (release: 2012-11-13)