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Technical Brief

Application of Acid Urease to Reduction of Urea in Commercial Wines

S. Fujinawa, G. Burns, Pete De La Teja
Am J Enol Vitic.  1990  41: 350-354  ; DOI: 10.5344/ajev.1990.41.4.350
S. Fujinawa
Food Research Laboratories, Takeda Chemical Industries, Ltd., Juso-Honmachi, Yodogawa-Ku, Osaka, Japan
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G. Burns
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Pete De La Teja
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Abstract

An acid urease was applied to the reduction of naturally occurring and added urea in sixty seven different bottled U.S. table and dessert wines purchased at random from the marketplace. The urease evaluated was found to be effective in reducing urea levels to less than half of their initial values in 53 of 59 table wines and three of eight dessert wines.

  • acid urease
  • ethyl carbamate
  • urea
  • Received September 1989.
  • Copyright 1990 by the American Society for Enology and Viticulture

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Vol 41 Issue 4

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Application of Acid Urease to Reduction of Urea in Commercial Wines
S. Fujinawa, G. Burns, Pete De La Teja
Am J Enol Vitic.  1990  41: 350-354  ; DOI: 10.5344/ajev.1990.41.4.350
S. Fujinawa
Food Research Laboratories, Takeda Chemical Industries, Ltd., Juso-Honmachi, Yodogawa-Ku, Osaka, Japan
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G. Burns
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Pete De La Teja
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Application of Acid Urease to Reduction of Urea in Commercial Wines
S. Fujinawa, G. Burns, Pete De La Teja
Am J Enol Vitic.  1990  41: 350-354  ; DOI: 10.5344/ajev.1990.41.4.350
S. Fujinawa
Food Research Laboratories, Takeda Chemical Industries, Ltd., Juso-Honmachi, Yodogawa-Ku, Osaka, Japan
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G. Burns
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Pete De La Teja
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