Seven treatments (activated charcoal, bentonite, PVPP, yeast cell walls, potassium caseinate, zeolite and grape seed oil) were evaluated for their efficacy in decreasing the concentration of geosmin, responsible for earthy off-flavour in wine. In the red wine the potassium caseinate and grape seed oil treatments decreased the concentration of geosmin by 14% and 83%, respectively, while in the w...

1. Crall, J. M. and L. H. Stover, 1957. The significance of Pierce's disease in the decline of bunch grapes in Florida. lAbst.) Phytopath. 47: 518. 2. Dickey, R. D. and K. W. Loucks, (revised by Dickey, R. D., L. H. Stover, and G. K. Parris) 1947. Grape growing, in Florida. Fla. Agr. Exp. Sta. Bui. 436 3. Dubois, C. W. Personal communication. 4. Pederson, Carl S., 1961. Grape juice. Chapter 23 ...

Trans-resveratrol (3,5,4'-trihydroxy-trans-stilbene) is naturally present in the skin of grapes and therefore is expected to occur in grape products. Recently, there has been a renewal of interest in wine as medical treatment for various disorders. In this study, berry skins of five red grape varieties were analysed at weekly intervals for trans-resveratrol production, during 2012 and 2013 harv...

BACKGROUND In vitro, the flavonoid components of red wine and purple grape juice are powerful antioxidants that induce endothelium-dependent vasodilation of vascular rings derived from rat aortas and human coronary arteries. Although improved endothelial function and inhibition of LDL oxidation may be potential mechanisms by which red wine and flavonoids reduce cardiovascular risk, the in vivo ...

The major purposes of the presents study were (a) to examine the degree to which academic engagement mediates the relationship between parenting style and academic achievement. Data from 382 participants (191 males and 191 females) were examined using measures of parenting style, academic engagement, and self-reported grade point average. The results indicated that academic engagement mediate r...

Estimating the current stage of grape ripeness is a crucial step in wine making and becomes especially important during harvesting. Visual inspection of grape seeds is one method to achieve this goal without performing chemical analysis, however this method is prone to failure. In this paper, we propose an unsupervised visual inspection system for grape ripeness estimation using the Dirichlet M...

The Phenolic Maturity of the grape is one of the most important parameters to determine the optimal time for harvest. In this paper an innovative methodology to estimate grape maturity is proposed. In particular, the method is based on pattern recognition techniques to analyze seed images and to classify them into immature, mature, and overmature states by means of a supervised learning neural ...

The gamma-ray attenuation porosity evaluator (GRAPE) component of the multisensor track (MST) unit on board the JOIDES Resolution measures the saturated bulk density of sediments by relating the attenuation of gamma rays in a core sample to that of a standard with known density (aluminum). After reaching thermal equilibrium, unsplit core sections are routinely run through the MST system. The sa...

Grape composition plays important role for wine grapes in terms of wine grape quality. Besides, monoterpenes are a chemical class of compounds present in many highly aromatic Vitis vinifera L. cultivars belonging to Muscat family and some other special cultivars. One of these special grape cultivars is Sauvignon Blanc, and in this study, cluster thinning and its treatment times were used for a ...