A method is disclosed for decolorizing a muscadine pomace grape extract by processing the clarified extract by ultrafiltration through a 500-5000 kDa microfiltration membrane to obtain a first permeate in which flavor components are removed. The retentate is subjected to ultrafiltration through a 25-100 kDa ultrafiltration membrane to obtain a second permeate and a second retentate. The polymeric condensed tannins are removed in the second retentate and the second permeate is the decolorized extract having increased levels of polyphenols and lowered levels of sugars and condensed tannins compared to the first retentate. The decolorized extract can be incorporated into skin care compositions, and applied to the skin to maintain healthy skin without discoloration.Topical compositions are disclosed that include a decolorized muscadine (Vitis rotundifolia) pomace solvent extract, beta-glucan and grape seed extract. The compositions can reduce inflammation in the skin, including inflammation that results from exposure to ultraviolet radiation. Also disclosed are methods of reducing skin inflammation, methods of inhibiting the production of anti-inflammatory mediators in skin cells, and methods of inhibiting damage induced by ultraviolet radiation by applying topical compositions which include a decolorized muscadine (Vitis rotundifolia) pomace solvent extract, beta-glucan and grape seed extract, to the skin.本文揭示用於使麝香葡萄果漿葡萄萃取物褪色方法，其藉由透過500-5000kDa的微過濾膜進行超過濾來處理經澄清的萃取物，以獲得第一滲透物，其中在該第一滲透物中移除風味組分。使滲餘物經受透過25-100kDa的超過濾膜之超過濾，以獲得第二滲透物和第二滲餘物。在第二滲餘物中去除聚合的縮合單寧，且第二滲透物具有相較於第一滲餘物增加水平的多酚及降低水平的糖和縮合單寧。可將該褪色萃取物併入至皮膚護理組成物中，並施用至皮膚以維持健康的皮膚不變色。本文揭示包含褪色麝香葡萄(圓葉葡萄，Vitis rotundifolia)果漿溶劑萃取物、β-葡聚醣和葡萄籽萃取物之局部組成物。該組成物可減少皮膚之發炎，包括由暴曬於紫外線輻射所造成的發炎。本文亦揭示減少皮膚發炎的方法、抑制皮膚細胞中抗發炎介質產生的方法以及抑制紫外線輻射所誘發的損傷之方法，該等方法係藉由施用包含褪色麝香葡萄(圓葉葡萄)果漿溶劑萃取物、β-葡聚醣和葡萄籽萃取物的局部組成物至皮膚。
