Antioxidative Effect of Different Kinds of Propolis on the Oxidation of Edible Oils

식용유지 산화에 대한 프로폴리스(Propolis)별 항산화 효과

  • 한승관 (동신대학교 생물자원산업화지원센터)
  • Published : 2003.06.01

Abstract

The study was conducted to investigate the antioxidative effect of various extracted propolis. After addition of those extracts to soybean oil at the same level, their antioxidative effects were compared by Rancimat test. The control without added antioxidant showed the shortest Antioxidative Index(AI). The AI of the general Water Extracted Propolis(GWEP) and boiling WEP(BWEP) added to soybean oil were 4.51 and 5.02, respectively. The oxidation period in the BWEP was longer than the ascorbic acid and the GWEP. This result indicated that BWEP had more antioxidative effect than GWEP.

국산 프로폴리스(GBWEP)를 중탕과 실온에서 추출한 후, 식용유지에 대한 유지 산화안정도를 측정하여 항산화 효과를 검토하였다. 또한 국산과 외국산 Sigma사 프로폴리스 (SWEP)와의 항산화 효과도 비교 실험하였다. 중탕에서 추출한 WEP는 일반적인 방법인 실온에서 추출한 WEP보다 유의적으로 양호한 항산화 효과를 나타냈다. 또한 국내산 GBWEP의 항산화 효과는 SWEP와 ascorbic acid보다도 우수하였다. 특히 GBWEP를 중탕 처리한 WEP가 실온에서 추출한 WEP보다 항산화 효과가 뛰어났다. 프로폴리스는 retention time 3~10분과 18~23분 사이에서 저비점과 고비점 물질로 크게 분류되었다. 특히 10$0^{\circ}C$ 이하와 15$0^{\circ}C$ 이상에서 많은 구성성분 피크들이 분포되었다. 이것은 프로폴리스의 구성성분들이 10$0^{\circ}C$ 이하에서와 15$0^{\circ}C$ 이상에서 주로 추출되는 것으로 생각된다. 결론적으로 프로폴리스를 70~95$^{\circ}C$에서 중탕 처리함으로써 저비점의 수용성 성분들이 다량 추출되어 항산화 효과에 영향을 주었던 것으로 생각된다.

Keywords

References

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