Abstract:
Provided are a hydroxamic acid derivative which shows an antioxidizing effect and a collagen biosynthesis enhancing effect, its preparation method, and a skin preparation composition for external use containing the derivative. The hydroxamic acid derivative is represented by the formula 1, wherein R1 and R2 is a C1-C10 alkyl group; R3 is -(CH)n-; n is 0 or 1; and R4 is H or a methyl group. The method comprises the steps of reacting a 3,4-dialkoxybenzoic acid and methyl 4-aminobenzoate or methyl 4-aminophenyl acetate to prepare a benzamide compound; hydrolyzing a methyl ester group of the benzamide compound to prepare an acid; and reacting the acid with hydroxylamineÀHCl salt or N-methyl hydroxylamineÀHCl salt to prepare the hydroxamic acid derivative of the formula 1.
Abstract:
본 발명은 유효성분으로 시호 추출물을 함유하는 각질형성세포 성장촉진용 조성물, 활성산소 소거용 조성물, MMP-1의 생합성 감소를 통해 타입 1 프로콜라겐의 생합성을 촉진하는 타입 1 프로콜라겐의 생합성 촉진용 조성물, 피부노화방지용 조성물 및 상기 시호 추출물에 인동 추출물, 행인 추출물, 차전초 추출물 및 의이인 추출물로 이루어진 군으로부터 선택된 하나 이상을 더 함유하는 것을 특징으로 하는 조성물에 관한 것으로, 상기 추출물은 물을 추출용매로 하여 추출한 것을 특징으로 하며, 상기 조성물에 1,3-부틸렌 글리콜을 더 함유하는 것을 특징으로 한다. 상기 추출물은 각질형성세포의 성장촉진 효과, 자외선에 의해 생성되는 활성산소 소거 효과, 피부기질의 분해에 관련된 자외선에 의한 MMP-1의 생합성 감소를 통해 타입 1 프로콜라겐의 생합성을 촉진시키는 효과를 통해 피부노화를 억제하는 효과가 있으므로, 상기 추출물을 함유하는 조성물은 각질형성세포 성장촉진용 조성물, 활성산소 소거용 조성물, MMP-1의 생합성 감소를 통해 타입 1 프로콜라겐의 생합성을 촉진하는 타입 1 프로콜라겐의 생합성 촉진용 조성물, 피부노화방지용 조성물로써 화장품 및 의약품에 유용하게 이용할 수 있다. 시호, 인동, 행인, 차전초, 의이인, 각질형성세포, 활성산소, 타입 1 프로콜라겐, 조성물, 부틸렌 글리콜, 화장품, 의약품
Abstract:
PURPOSE: Provided is an oil dispersant of titanium dioxide and zinc oxide in high concentration, a method for manufacturing the same and a composition of external application containing the same. CONSTITUTION: A method for manufacturing an oil dispersant comprises the steps of: adding dispersant to dispersion medium and stirring them to maintain their concentration constant and give oilphilic phase; adding UV blocking agent to the oilphilic phase and stirring them to the UV blocking agent in the oilphilic phase with milling using beads; separating the oil dispersant from the beads; stirring the separated beads and oil dispersant; and applying high energy after stirring to separate particles and stabilizing them.
Abstract:
PURPOSE: Provided is a controlling agent of Bcl-2 expression which characteristically contains ginsenoside F1(20-O-beta-D-glucopyranosyl-20(S)-protopanaxatriol) represented by the formula(1), as an active ingredient. It prevents apoptosis caused by radiating low doses of ultraviolet rays, while promoting apoptosis when radiating high doses of ultraviolet rays, therefore it removes the risk of cancers. CONSTITUTION: A controlling agent of the expression of Bcl-2 is characterized by containing ginsenoside F1(20-O-beta-D-glucopyranosyl-20(S)-protopanaxatriol), which is represented by the formula(1), as an active ingredient. It inhibits the decrease of Bcl-2 expression caused by radiating ultraviolet rays. Therefore, it prevents apoptosis by the radiation of low doses of ultraviolet rays, but promotes apoptosis by the radiation of high doses of ultraviolet rays.
Abstract:
본발명은녹차다당체의제조방법에관한것으로, 보다상세하게는 a) 용매를이용하여녹차분말에서엽록소및 저분자량의폴리페놀을제거하는단계; b) 상기 a)단계의녹차잔사로부터수용성활성성분을열수추출하는단계; 및 c) 상기 b)단계의열수추출물로부터한외여과및 에탄올침전반응으로녹차다당체를분리하는단계를포함하는것을특징으로하는녹차다당체의제조방법에관한것이다. 본발명에따라제조한녹차다당체를함유하는화장료조성물은우수한피부미백, 보습및 주름개선효과를나타낸다.