To date there are no licensed systemic or topical treatments in Europe or the USA for adenovirus infections. In the present paper, we evaluate the effect of a polyphenol-based grape extract (NE) obtained from Portuguese white-winemaking by-products, and Resveratrol in pure form, on adenovirus type 5 infection. For this purpose, recombinant adenovirus vectors (Ad-5) and a human-derived cell line...

Polyphenols, including tannins and red anthocyanin pigments, are responsible for the color, taste, and beneficial health properties of plant-derived foods and beverages, especially in red wines. Known compounds represent only the emerged part of the "wine polyphenol iceberg". It is believed that the immersed part results from complex cascades of reactions involving grape polyphenols and yeast m...

paratus. In activity 2, students can use the equipment used by hobby winemakers – a vinometer – to measure the alcohol content of the must and wine. 3. A well balanced wine needs a certain amount of fruit acid; the total acid content is a very important measure, because it directly affects the flavour. In activity 3, the acid content is determined by pH titration. Four further activitiesw2 can ...

Triton WR-1339 administration causes neurotoxicity. Natural products and herbal extracts can attenuate cerebral injury. In the present study, we investigated the neuroprotective role of grape seed extract and/or vitamin B6 against triton-induced neurotoxicity. Thirty-five adult male albino rats of the Sprague-Dawley strain, weighing 140-145 g, were divided into five groups: control, triton, gra...

The distribution of anthocyanins in grape (Vitis vinifera L.) bunches from the Sangiovese cultivar was measured nondestructively by chlorophyll fluorescence imaging using two excitation light bands at 550 and 650 nm in sequence. The pixel intensity in the derived logarithm of the fluorescence excitation ratio image was directly related, by an exponential function (r2 = 0.93), to the anthocyanin...

micropropagated plantlets derived from three different grape rootstock genotypes namely, dogridge (vitis champini), so4 (v. berlandieri×v. rupestris) and ari-h-144 (v. vinifera×v. labrusca) were subjected to randomly amplified polymorphic dna (rapd) and inter simple sequence repeats (issr) analyses in order to evaluate their genetic stability and/or detect likely existing variations among in vi...

Polyphenols are a large and complex group of compounds responsible for the characteristics, quality, and color of grape and wine, especially for red ones. The polyphenolic composition has been extensively studied and a large family of structures have been identied in grapes and wine (Ribereau-Gayon 1965; Somers 1971; Nagel and Wulf 1979; Slinkard and Singleton 1984; Bourzeix et al. 1986; Cheyn...

Most solid waste produced by South African wineries during wine making processes includes filterwastes derived from perlite and Diatomaceous earth. Wine filter wastes together with grapevine pruningcanes, berry skins, seeds stalks can be used to make compost as a minimization managementstrategy for the industry. The objective of study was investigate feasibility using winerysolid grape products...

Grape is one of the oldest plants used by man. It has a special taste and in great demand around world. mainly food industry, by-products winemaking are actively cosmetic pharmaceutical industries, due to its composition. production wastes - components vine suitable for further use extraction valuable biologically active substances increase competitiveness primary secondary winemaking. The poss...