Journal of the Society of Cosmetic Scientists of Korea (대한화장품학회지)

Society of Cosmetic Scientists of Korea (대한화장품학회)
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The Constraint for Oxidation of Ascorbic Acid

Ascorbic Acid의 산화억제

  • 이강연 (숭실대학교 환경·화학공학과) ;
  • 한창규 (숭실대학교 환경·화학공학과) ;
  • 조춘구 (라미화장품 피부과학연구소)
  • Published : 1999.10.01
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Abstract

Ascorbic acid which has various physiological benefits as the functional substance is easily oxidized and destroyed by the structural instability. Liposome encapsulated pure ascorbic acid was prepared for the sake of the constraint of oxidation. The influence of cholestrol or $\beta$-sitosterol on the stabilization of liposome was investigated. Butylated hydroxytoluene(BHT), tertiary butylhydroquinone(TBHQ), $\alpha$ -glycosyl rutin and natural concentrated tocopherol were used for constraint of oxidation of ascorbic acid. The presence of cholesterol or $\beta$-sitosterol decreased oxidation of ascorbic acid. That results were thought that cholesterol or $\beta$-sitosterol so increased rigidity of bilayer that the leakage of vitamin C decreased. As a result the oxidation and degradation of vitamin C were constrained. At 0.3w/w% cholesterol content the most stable liposome was formulated. The whole antioxidant that used at the research constrained oxidation of ascorbic acid. The antioxidation for ascorbic acid increased in order of tertiary butylhydroquinone, $\alpha$-glycosyl rutin, butylated hydroxytoluene and natural concentrated tocopherol. But u -glycosyl rutin is preferable to tertiary butylhydroquinone which was the most effective in antioxidation as the antioxidant of ascorbic acid which was utilized in cosmetics and pharmacy.

기능성 물질로서 다양한 생리적 기능을 가진 ascorbic acid는 구조적으로 불안정하여 쉽게 산화되는데 이러한 ascorbic acid의 산화를 억제하기 위해 리포좀에 순수한 ascorbic acid를 봉입시켜 안정한 리포좀을 제조하였다. 안정한 리포좀의 제조를 위해 cholesterol이나 $\beta$-sitosterol 이 리포좀의 안정화에 미치는 영향을 측정하였으며 ascorbic acid의 산화방지를 위해 항산화제로 butylated hydroxytoluene(BHT), tertiary butylhydroquinone(TBHQ)와 $\alpha$-glycosyl rutin, natural concentrated tocopherol을 사용하였다. 리포좀 제조시 cholesterol이나 $\beta$-sitosterol을 사용한 경우 ascorbic acid의 산화가 감소하였는데 이는 cholesterol이나 $\beta$-sitosterol이 리포좀의 이중막을 강화하여 봉입한 ascorbic acid의 방출을 감소시켜 산화를 방지하는 것으로 생각된다 또한 cholesterol의 농도가 0.3%인 경우 가장 안정한 리포좀이 생성됨을 알 수 있었다. 사용된 항산화제는 ascorbic acid에 대하여 모두 산화억제효과를 나타내었으며 tertiary butylhydroquinone, $\alpha$-glycosyl rutin, butylated hydroxytoluene, natura] concentrated tocopherol 순으로 우수함을 보였다. 그러나 제약 및 화장붐에 사용되는 ascorbic acid의 산화억제에는 효과가 가장 좋은 합성 항산화제인 tertiary butylhydroquinone보다 천연물질에서 추출한 항산화제인 $\alpha$-glycosyl rutin이 더 적합할 것으로 생각된다.

Keywords

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