| abstract |
The present invention provides a collagen production accelerator effective for improving skin aging, rough skin, and the like, as well as a beauty food and drink, cosmetics, and pharmaceuticals. [Solution] An extract solution obtained by using a solvent such as ethanol from konjac fly flour and the like is concentrated to obtain a brownish waxy concentrate, then decomposed weakly to decompose glycerolipid, and then re-extracted. Subsequently, the glucosylceramide powder purified with a silica gel column or the like is heated in 1N aqueous methanolic hydrochloric acid at 70 ° C. for 18 hours, and the fatty acid methyl ester is extracted and removed with hexane, neutralized with 4N NaOH, and then with chloroform / methanol. Collagen production promoters containing sphingoids obtained by extraction as active ingredients, and beauty foods, beverages, pharmaceuticals, and cosmetics characterized by blending them. [Selection figure] None |