Professor Satinder Kaur Brar of the Eau Terre Environnement Research Centre at INRS is the only Quebec fellow of the College of New Scholars, Artists and Scientists of the Royal Society of Canada invited to the international expert workshop Solid Waste Management and Green Economy to be held October 22 and 23, 2015, in Halle, Germany. She will present a case study with significant benefits for the beer industry during her talk "Chitin and Chitosan as Natural Flocculants for Clarification and In-house Enzymes for Haze Removal in a Microbrewery - Sustainable Bioeconomy Case."
For the first time, Professor Brar has demonstrated that chitosan and chitin are more eco-friendly alternatives than bentonite or STABIFIX as bioflocculants to eliminate turbidity and prevent the formation of haze in beer stored at room temperature. The primary component of the shells of crustaceans, chitosan is considered a renewable resource. Chitin and chitosan are inexpensive, biodegradable, and non-toxic to mammals.
In fact, chitosan at 160 times smaller dose than conventional flocculants reduces turbidity. Chitin also outperforms bentonite coagulants and STABIFIX, that require high doses to be effective. In addition to being eco-friendly, chitosan and chitin reduce flocculation time from ten days to two and produce five times the beer at around one-tenth the cost of conventional bioflocculants.
The workshop is being organized at the initiative of the Global Network of Science Academies and the Global Young Academy, with funding from the German Academy of Sciences Leopoldina.
Source: Institut national de la recherche scientifique - INRS