In order to analyze and compare the phenolic characteristics of red wine grapes with diverse genetic backgrounds, skin phenolics among 21 different cultivars belonging to Vitis vinifera L., East Asian and North American Vitis species and hybrids, as well as 2 varieties of muscadine grapes were estimated by HPLC-MS/MS. There were 45 anthocyanins, 28 flavonols, 8 flavan-3-ols, 9 cinnamic acids, 5...

Deciding when to harvest the grapes is one of the most important choices that a winemaker or vineyard manager has to make. Sugar level in the grapes is often used as a maturity index, but sugar level at maturity is variable depending on the climate of the region where the grapes are grown and, therefore, is an inadequate indicator by itself. Others use the sugar to acid ratio or the color of th...

Microwave (MW) vacuum dehydration using temperature to control the level of MW power demonstrated potential in improving the performance of the process. Product surface temperature measured by an infrared temperature sensor was used to control MW power at any level between 0 and 3 kW. Multiple linear regression analysis indicated an r2 = 0.942 for prediction of final moisture content and r2 = 0...

In accordance with data provided from Mathematics Modeling Competition for National University students in 2012, it can be found whether grapes are high-quality or not as well as the direct relationship between the grape and wine quality by means of SPSS and other statistical softwares, through multivariate statistical analysis and data analysis, and by verifying the credibility what comments m...

Road traffic crashes in Gulf Cooperation Countries (GCC) is considered a serious problem that has deep effects on GCC's population as well as on the national productivity through the loss of lives, injuries, property damage and the loss of valuable resources. Thus, there is an urgent need to alleviate the Severity of the traffic safety problem in GCC, which in turn will set a prime example for ...

Samples of grapes are originating from different Italian areas and purchased from local and Romanian markets.During the fermentation, yeasts convert most of the sugar in the grape juice into ethanol. Grapes may be potent against tumors because of their high concentration of tannin. Selenium enriched yeasts may be a safe source as a diet supplement. Saccharomyces cerevisiae is normally present o...

Recently published research has identified that the use of a ‘wine-like’ 15% ethanol extraction method when analysing grape tannins provides a strong indication of tannin concentration that is likely to result when those grapes are made into wine. The AWRI has developed a rapid and practical method for determining extractable tannins in red grapes, which involves gentle crushing of grapes by ha...

Purpose of the study The aims were to analyze sustainable practices adopted by international chain hotel brands in Muscat; and find out extent affecting guest satisfaction hotels Muscat determine barriers challenges faced Muscat. Design/Methodology/Approach Forty questionnaires distributed two hotels’ employees different job positions. In-depth interviews also used gather qualitative informatio...

Anthocyanins, synthesized via the flavonoid pathway, are a class of crucial phenolic compounds which are fundamentally responsible for the red color of grapes and wines. As the most important natural colorants in grapes and their products, anthocyanins are also widely studied for their numerous beneficial effects on human health. In recent years, the biosynthetic pathway of anthocyanins in grap...

Total length of the Republic Serbia border is 2351.8 km, from which zone between and Romania 546.5 km. According to wine-growing areas zoning in Serbia, three are defined: Central Vojvodina Kosovo Metohija. area include South Banat region with two sub-regions: Vršački Belocrkvanski, while area, also zone, there Mlava Region Braničevsko, Požarevačko Resavsko Negotinska Krajina four Ključko, Brzo...