Survey of Biotin, Pantothenic Acid, and Assimilable Nitrogen in Winegrapes from the Pacific Northwest

被引：0
|
作者：
Hagen, Kristine M. [1 ]
Keller, Markus [2 ]
Edwards, Charles G. [1 ]
机构：
[1] Washington State Univ, Sch Food Sci, Pullman, WA 99164 USA
[2] Washington State Univ, Ctr Irrigated Agr Res & Extens Ctr, Dept Hort & Landscape Architecture, Prosser, WA 99350 USA
来源：
AMERICAN JOURNAL OF ENOLOGY AND VITICULTURE | 2008年 / 59卷 / 04期
关键词：
biotin; cultivar; pantothenic acid; nitrogen; Vitis vinifera;
D O I：
暂无
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Winegrape samples were collected from 2001 to 2003 in vineyards located in the Pacific Northwest. Riesling and Chardonnay had lower concentrations of biotin (often < 1 mu g/L) than did red cultivars. The concentration of pantothenic acid (mean 513 +/- 181 mg/L) was lowest in Riesling but highest in Chardonnay. Most samples contained low amounts of yeast assimilable nitrogen (YAN), ranging from 25 to 336 mg/L (mean 124 +/- 62 mg/L). While most grape samples had adequate amounts of pantothenic acid for fermentation, many were deficient in biotin or YAN.
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页码：432 / 436
页数：5
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