초록 ▼

Disclosed is a method of producing a polyphenol-containing composition derived from grapes, the method including: preparing a liquid grape extract which includes polyphenols; contacting the liquid extract with a separation medium which fractionates the components of the extract; and recovering that

Disclosed is a method of producing a polyphenol-containing composition derived from grapes, the method including: preparing a liquid grape extract which includes polyphenols; contacting the liquid extract with a separation medium which fractionates the components of the extract; and recovering that fraction in which the polyphenols are present. Also disclosed is a method of enriching the composition with added flavonol.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method of producing a dry polyphenol containing composition comprising flavonols and anthocyanins for human consumption comprising:a) using a grape extract wherein said extract contains sufficient flavonols to yield at least 1% w/dry wt flavonols;b) applying said grap

[ What is claimed is:] [1.]1. A method of producing a dry polyphenol containing composition comprising flavonols and anthocyanins for human consumption comprising:a) using a grape extract wherein said extract contains sufficient flavonols to yield at least 1% w/dry wt flavonols;b) applying said grape extract to a solid chromatographic separation medium which retains polyphenols;c) eluting material from the separation medium with a liquid eluent acceptable for the preparation of foods;d) recovering a fraction in which the polyphenols are present, wherein said recovered polyphenol fraction comprise at least 25% w/dry wt polyphenols and 1% w/dry wt flavonols and about 1% w/dry wt anthocyanins;e) drying the recovered polyphenol fraction.