Abstract: The present invention provides a colostrum hydrolysate having a content of L-tryptophan improved by hydrolysis of colostrum using a proteolytic enzyme, a method for production of the same, and a whitening composition including the above hydrolysate as an active ingredient. The colostrum hydrolysate according to the present invention has an advantage in that low molecular weight components such as peptide, L-tryptophan, etc. are generated by hydrolyzing protein contained in a colostrum extract using hydrolase, thereby enabling easy absorption thereof to the human body. The colostrum hydrolysate may be usefully utilized in cosmetics, foods, medicines, feed industry and the like.

Abstract: The present disclosure relates to a pharmaceutical composition for prevention, improvement or treatment of light-derived skin cell damage, a health supplement food composition for prevention or improvement of light-derived skin cell damage and a blue light blocking cosmetic composition, each of which includes Curcuma aromatica Salisb extract and/or Elaeocarpus sylvestris var. Ellipticus extract as effective ingredients, as well as a method for preparing the Curcuma aromatica Salisb extract and the Elaeocarpus sylvestris var. Ellipticus extract. Such compositions may absorb blue light having a wavelength of 380 to 500 nm, so as to protect skin cells from being damaged by blue light.