Free amino acid composition of grape juice from 12 Vitis vinifera cultivars in Washington

SE Spayd, J Andersen-Bagge - American Journal of …, 1996 - Am Soc Enol Viticulture
Free amino acid concentrations in juice of 12 Vitis vinifera cultivars grown in the Columbia
and Yakima Valley appellations of Washington state were monitored from 1986 to 1990 for a …

Amino acid profiles of commercial grape juices and wines

Z Huang, CS Ough - American Journal of Enology and …, 1991 - Am Soc Enol Viticulture
The analysis of over 300 commercial juice samples for amino acids from grape varieties
grown and/or processed in 1988 in Napa valley or Carneros are summarized. The amino …

Changes in the free and total amino acid composition of several Vitis labruscana grape varieties during maturation

RM Kluba, LR Mattick… - American Journal of …, 1978 - Am Soc Enol Viticulture
The changes in concentration of the free and total amino acids and other chemical
constituents of three commercially important Vitis labruscana grape varieties during …

Effect of vineyard locations, varieties, and rootstocks on the juice amino acid composition of several cultivars

Z Huang, CS Ough - American Journal of Enology and …, 1989 - Am Soc Enol Viticulture
Several grape varieties grown in Napa Valley and Davis and certain samples from other
locations were analyzed for amino acids at the beginning of fermentation. Amino acid …

Free amino acids and other nitrogenous fractions in wine grapes

WM Kliewer - Journal of Food Science, 1970 - Wiley Online Library
The concentration of eight free amino acids, total nitrogen, amino‐acid fraction nitrogen, and
nonamino‐acid‐fraction nitrogen in the juices of 26 red‐and 23 white‐wine varieties of …

Changes in the concentration of free amino acids in grape berries during maturation

WM Kliewer - American Journal of Enology and Viticulture, 1968 - Am Soc Enol Viticulture
The concentrations of 8 amino acids and of total free amino acids in the juices of 6 table
varieties and 12 wine varieties of grapes were determined at various times during the …

Determination of amines and amino acids in wine—a review

P Lehtonen - American Journal of Enology and Viticulture, 1996 - Am Soc Enol Viticulture
The significance of amines and amino acids in wine, and the most recent techniques for their
determination and quantification, are summarized. Liquid chromatography is by far the most …

Profiles of free amino acids in grapes of grafted Chardonnay grapevines

MT Treeby, BP Holzapfel, RR Walker… - Australian Journal of …, 1998 - Wiley Online Library
Chardonnay grapes from a rootstock trial in the Murray Valley region of South Australia were
sampled for two seasons and concentrations of free amino acids in grape extract ('juice') …

Changes in the concentration of amino acids during the ripening of Vitis vinifera Tempranillo variety from the Denomination d'Origine Somontano (Spain)

P Hernández-Orte, A Guitart… - American Journal of …, 1999 - Am Soc Enol Viticulture
The concentration of 18 free α-amino acids and total α-amino acid nitrogen in musts and
total nitrogen in seeds, skins, and must of the Tempranillo variety was determined from the …

Rapid determination of primary amino acids in grape juice using an o-phthaldialdehyde/N-acetyl-L-cysteine spectrophotometric assay

BC Dukes, CE Butzke - American Journal of Enology and …, 1998 - Am Soc Enol Viticulture
Low levels of yeast assimilable nitrogenous compounds (YANC) in grape juice have been
associated with sluggish or stuck fermentations. In contrast, excessive levels may lead to the …