Antiradical Capacities of Perilla, Sesame and Sunflower Oil

Abstract

The aim of this study is to examine the radical scavenging activity of perilla and sesame oil that Koreans traditionally consume. For DPPH radical scavenging activity, oil and its hexane/70% methanol extracts (ME) are used and for superoxide and hydroxyl radical scavenging activities, ME are used. Unrefined perilla oil, sesame oil, and refined sunflower oil are used. The yields for ME of perilla, sesame and sunflower oil are 0.57, 0.61, and 0.30%, respectively, and the amounts of phenolic compounds in ME of corresponding oil are 18.77, 88.64 and 0.05 μg tannic acid/mg, respectively. IC 50 for DPPH scavenging activity of perilla, sesame and sunflower oil are 2.12, 1.91, and 3.35 mg/mL, respectively and those for ME of corresponding oils are 0.42, 0.07, and 43.11 mg/mL, respectively. In DPPH assay, the solvent used for oil sample is iso-octane and that for ME is methanol. Superoxide anion scavenging activity of ME of perilla, sesame and sunflower oil tested at 1 mg/mL concentration are 21.10, 13.25, and 3.14%, respectively. Hydroxyl radical scavenging activities of those samples tested at 1 mg/mL concentration are 86.08, 93.30, and 93.17%, respectively. In summary, the refining process seems to remove the phenolic compound during oil processing. Antiradical substances in perilla and sesame oils responsible for scavenging DPPH radicals are present in the methanol fraction, while the antiradical substances in the sunflower oil are in the lipid fraction. DPPH scavenging activity of ME of sesame oil is significantly higher than that of perilla oil (p<0.05). However, superoxide anion scavenging capacity of ME of perilla oils was found to be greater than that of both sesame and sunflower oils (p<0.05).

Perilla Oil Reduces Fatty Streak Formation at Aortic Sinus via Attenuation of Plasma Lipids and Regulation of Nitric Oxide Synthase in ApoE KO Mice

“…PO is known to exhibit preventive effects on some cancers [10], renal disease [11], dyslipidemia [12,13], cardiovascular disorder [14,15], and obesity [16,17]. Health benefits of PO might be from ALA and antioxidant compounds present in the oil [18]. PO is usually manufactured by pressed extraction, thus antioxidant compounds such as phenolic compounds are present.…”

Effects of Chlorophyll and Carotene on Lipid Oxidation and Tocopherols during Heating for Manufacturing of Perilla and Rice Porridge

“…또한 구성 지방산 중 65% 이상이 필수지방산인 ω-3계의 리놀렌산으로, 볶은 들깨를 압착하여 얻은 들기름은 동 맥경화 예방 및 콜레스테롤 감소 효과는 물론, 지방질 항상성 및 염증 반응과 관련된 조절 유전자를 통해 간의 염증과 지방간 생 성을 억제할 수 있음이 보고되었다(2,3). 또한 들깨 및 들기름에 는 토코페롤 등 산화방지성분들이 함유되어 라디칼 소거 효과와 생체내에서 노화방지 및 발암 억제 효과가 있다고 보고되었다(4,5). 이와 같이 건강에 유익한 생리활성 성분을 다량 함유한 들깨 를 이용하여 다양한 식품으로 가공하고 있으며 들깨죽도 그 중 하나이다.…”