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- BookGeralyn Ochs, RN, AGACNP-BC, ACNP-BC, ANP-BC, Associate Professor of Nursing, Coordinator of the Adult Gerontological Acute Care Nurse Practitioner Program, St. Louis University School of Nursing, St. Louis, Missouri.
- ArticleKnorr F.Z Lebensm Unters Forsch. 1978 May 29;166(4):228-33.Analytical methods for the determination of polyphenols of malt, barley, hop, wort, and beer are described. Malt or barley tannins has hitherto not received as much study as hop tannin. Polyphenols or tannins are classified. Studies on non-biological hazes are discussed in relation to the haze problem in brewing. The leucoanthocyanins of malt differ from those of hops in ability to form hazes. Subfractionation of polyphenol concentrates on sephadex columns allows isolation of individual tannins.