초록 ▼

Green tea extracts having improved clarity and color. These extracts are obtained by treating the green tea extract with an amount of a food grade cation exchange resin effective to remove metal cations present in the extract. The treated extract is then contacted nanofiltration membrane while the t

Green tea extracts having improved clarity and color. These extracts are obtained by treating the green tea extract with an amount of a food grade cation exchange resin effective to remove metal cations present in the extract. The treated extract is then contacted nanofiltration membrane while the treated extract is at a temperature of from about 100.degree. to about 140.degree. F. (from about 37.8.degree. to about 60.degree. C.) to provide a filtered green tea extract as the permeate. These green tea extracts can be included in a variety of beverages and are especially useful in suppressing the characteristic aftertaste of aspartame in diet beverages.

대표청구항 ▼

[ What is claimed is:] [1.] A beverage, which comprises flavorful amount of green tea solids extract, said extract having, on a 1% soluble solids basis:a. a mixture of catechins having a molecular weight range corresponding to a nanofiltration membrane made from a polymer having a nominal molecular

[ What is claimed is:] [1.] A beverage, which comprises flavorful amount of green tea solids extract, said extract having, on a 1% soluble solids basis:a. a mixture of catechins having a molecular weight range corresponding to a nanofiltration membrane made from a polymer having a nominal molecular weight cut off from about 700 to about 5000 Daltons, the mixture comprising:(1) at least about 130 ppm of epicatechins;(2) at least about 300 ppm of epigallocatechins;(3) at least about 350 ppm of epigallocatechingallates;(4) at least about 100 ppm of epicatechingallates;b. at least about 60 ppm of theanine;c. about 10 ppm or less each of calcium, magnesium, manganese, aluminum, zinc and iron ions;d. an absorbance of about 0.06 or less when measured at 600 nm.