PT  - JOURNAL ARTICLE
AU  - J. E. Marcy
AU  - D. E. Carroll
TI  - A Rapid Method for the Simultaneous Determination of Major Organic Acids and Sugars in Grape Musts
AID  - 10.5344/ajev.1982.33.3.176
DP  - 1982 Jan 01
TA  - American Journal of Enology and Viticulture
PG  - 176--177
VI  - 33
IP  - 3
4099  - http://www.ajevonline.org/content/33/3/176.short
4100  - http://www.ajevonline.org/content/33/3/176.full
SO  - Am J Enol Vitic.1982 Jan 01; 33
AB  - Major organic acids (tartaric and malic acids) and major sugars (fructose, glucose, and sucrose) of grape musts were converted to trimethylsilyl (TMS) ethers followed by separation with gas-liquid chromatography. This method provides a rapid, simultaneous determination of these compounds in grape musts. Sample preparation prior to derivization is minimal because of the comparatively low concentration of possible interfering substances in grape must. Multiple peaks were eliminated by producing oximes of the sugars present. Tartaric acid, malic acid, fructose, glucose, and sucrose were all linear in response when measured from 0.5 to 6.0 mg/ mL. Good agreement was found with the ± 3.0% reproducibility reported for use of this method for sugars alone.