Equol-containing extract, method for production thereof, method for extraction of equol, and equol-containing food

Abstract

The present invention makes it possible to efficiently obtain useful components containing equol from the fermented soybean hypocotyl by subjecting an equol-containing fermented soybean hypocotyl to extraction using an ethanol aqueous solution as an extractant. The present invention reduces the content of saponin, which causes an unpleasant taste, by sequentially subjecting the equol-containing fermented soybean hypocotyl to extraction using an ethanol aqueous solution and ethanol, while efficiently extracting equol and glycitein.

1 - 26 . (canceled) 
     
     
         27 . A drink composition comprising (a) and (b):
 (a) equol; and   (b) ornithine,   wherein the equol and ornithine are present in a fermented substance obtained by fermenting a material containing at least one daidzein compound selected from the group consisting of daidzein glycosides, daidzein and dihydrodaidzein.   
     
     
         28 . The drink composition according to  claim 27 ,
 wherein the drink composition is at least one member selected from the group consisting of sparkling water, orange-flavored carbonated beverage containing no orange juice, low-calorie cola, carbonated apple beverage, carbonated grape beverage, beverage containing orange juice, low calorie beverage containing fruit juice, sugarless near water, sports drink, yogurt drink, lactic acid bacteria beverage, low-calorie sour milk beverage, cream soda, beverage containing apple juice, soft drink, beverage containing orange juice, oolong tea, tea with lemon, sour milk beverage, beverage containing vitamins, green tea, powered orange juice drink, amino acid drink and energy drink.   
     
     
         29 . The drink composition according to  claim 27 ,
 wherein the drink composition contains (c) at least one member selected from the group consisting of citric acid, sodium citrate, ascorbic acid, sodium L-ascorbate, lactic acid and malic acid, in a range of 0.003 to 5 wt %.   
     
     
         30 . A yoghurt composition comprising (a), (b) and (d):
 (a) equol;   (b) ornithine; and,   (d) starter yoghurt,   wherein the equol and ornithine are present in a fermented substance obtained by fermenting a material containing at least one daidzein compound selected from the group consisting of daidzein glycosides, daidzein and dihydrodaidzein.