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Article: Live yeast in beer increases its antioxidant activity.
- Article from:
- Emerging Food R&D Report
- Article date:
- September 1, 2004
CopyrightCOPYRIGHT 2004 Food Technology Intelligence, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Beer is rich in antioxidants, derived from malt and hops. Much research has been conducted concerning the antioxidant activity of beer in relationship to its flavor stability. Yeast possesses enzymatic and non-enzymatic antioxidant systems that defend against oxygen radicals, in addition to scavenging oxygen to promote the synthesis of cells.
It is well-known that bottle-conditioned beer, which contains live yeast, has a longer shelf life in terms of flavor stability and freshness. Scientists at Oregon State University wanted to determine whether bottle-conditioned beer has a higher antioxidant activity than conventional beer. They also wanted to evaluate the ...