6 results about "GRAPE SKIN EXTRACT" patented technology

The present invention provides an astaxanthin-based antioxidant composition, a preparation method thereof, and an application thereof. The antioxidant composition comprises the following components in parts by weight: 0.02-1.0 parts of astaxanthin, 0.01-4 parts of a plant enzymatic hydrolysate, 0.01-3 parts of a plant fermentation product, and 0.01-1.5 parts of a grape skin extract. The present invention, by adding the plant enzymatic hydrolysate and the plant fermentation product, can synergistically improve the antioxidant properties of the antioxidant composition with astaxanthin; simultaneously, the addition of the plant enzymatic hydrolysate and the plant fermentation product can improve the stability of the antioxidant composition; and when astaxanthin, the plant enzymatic hydrolysate, and the plant fermentation product are mixed under specific ratios, the soothing effect of the antioxidant composition on the skin can be improved.

The invention relates to the technical field of microecological preparations, in particular to a composition and application thereof in preparation of a product for improving liver injury. The novel composition provided by the invention contains probiotics, a radix puerariae extract and a grape skin extract, and the composition can effectively improve liver injury from an intestine-liver axis mechanism level. Animal tests prove that the effect is very ideal, the main components have a synergistic effect, the effect of remarkably improving liver injury can be achieved from multiple mechanism levels, and the traditional Chinese medicine composition is safe and free of side effects.

To provide a food and drink composition capable of improving a condition of spots appearing on the skin.SOLUTION: A food and drink composition includes: a fat soluble vitamin C derivative; a Pterocarpus marsupium extract containing resveratrol; and at least one type selected from a group consisting of a red wine extract containing resveratrol, a Polygonum root extract containing resveratrol and a grape skin extract containing resveratrol.SELECTED DRAWING: None

The invention relates to the technical field of nutritional supplements, in particular to a composite dietary nutritional supplement composition and a preparation method thereof. The nutritional supplement composition comprises the following components in parts by weight: 20-40 parts of maltitol, 10-25 parts of collagen peptide, 3-8 parts of sodium hyaluronate, 1-5 parts of nicotinamide, 4-8 parts of vitamin B, 2-10 parts of vitamin C, 5-15 parts of compound amino acid powder, 0.5-3 parts of y-aminobutyric acid, 2-8 parts of spina date seeds, 1-5 parts of a grape skin extract, 10-30 parts of maltodextrin and 0.5-2 parts of a food additive. According to the invention, the compound dietary nutrition supplement composition is formed by compounding eleven nutrient substances, the components can mutually cooperate to achieve the effects of reducing blood sugar, resisting aging and improving immunity, and meanwhile, the dietary nutrition supplement composition has the characteristics of high nutritional value, small eating side effect, good use effect and the like; and the nutritional supplement use of people in the current fast-paced life can be met.

The invention discloses a method for preparing cuprous oxide from grape skin and application of the cuprous oxide in photocatalytic synthesis of hydrogen peroxide, and belongs to the field of green chemistry and photocatalytic synthesis of high-value chemicals. According to the method disclosed by the invention, the biomass waste grape skin is taken as a raw material, rich resveratrol and the like in the raw material are extracted as a green reducing agent, a traditional cuprous oxide synthesis process is innovated, and an environment-friendly and sustainable nano cuprous oxide preparation strategy is developed. The method comprises the following steps: drying fresh grape skin, grinding into powder, adding deionized water, fully heating and stirring, standing, cooling to room temperature, and reserving clear liquid to obtain a grape skin extracting solution; and sequentially adding copper sulfate pentahydrate, sodium hydroxide and the grape skin extracting solution into deionized water, heating and stirring until the reaction is finished, cooling to room temperature, washing and drying to obtain cuprous oxide solid powder.