A simple method has been developed for assaying glycerol, glucose, and fructose in wine by high-performance liquid chromatography using a modified polar-bonded NH2-silica phase column and a refractive index detector. Glycerol, fructose, and glucose concentrations ranged from 3.30 to 7.67 mg/mL, from undetectable to 9.12 mg/mL, and from undetectable to 3.60 mg/mL, respectively, for high- and standard-quality red wines. For high- and standard-quality white wines, these concentrations ranged from 1.65 to 5.87 mg/mL, 0.18 to 7.07 mg/mL, and undetectable to 3.21 mg/mL, respectively. Fructose and glucose concentrations were much higher in sweet and sparkling wines (18.5 to 127 mg/mL). The method described measures glycerol and the two sugars simultaneously, allowing easy, specific, and rapid control of wine quality. Copyright
A rapid and simple method for simultaneous determination of glycerol, fructose, and glucose in wine / E. Moro, R. Majocchi, C. Ballabio, S. Molfino, P. Restani. - In: AMERICAN JOURNAL OF ENOLOGY AND VITICULTURE. - ISSN 0002-9254. - 58:2(2007), pp. 279-282.
A rapid and simple method for simultaneous determination of glycerol, fructose, and glucose in wine
C. Ballabio;P. RestaniUltimo
2007
Abstract
A simple method has been developed for assaying glycerol, glucose, and fructose in wine by high-performance liquid chromatography using a modified polar-bonded NH2-silica phase column and a refractive index detector. Glycerol, fructose, and glucose concentrations ranged from 3.30 to 7.67 mg/mL, from undetectable to 9.12 mg/mL, and from undetectable to 3.60 mg/mL, respectively, for high- and standard-quality red wines. For high- and standard-quality white wines, these concentrations ranged from 1.65 to 5.87 mg/mL, 0.18 to 7.07 mg/mL, and undetectable to 3.21 mg/mL, respectively. Fructose and glucose concentrations were much higher in sweet and sparkling wines (18.5 to 127 mg/mL). The method described measures glycerol and the two sugars simultaneously, allowing easy, specific, and rapid control of wine quality. CopyrightPubblicazioni consigliate
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