• 제목/요약/키워드: superoxide anion radical scavenging

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Antioxidative Activity of Lichen Thamnolia vermicularis in vitro

  • Luo, Heng;Ren, Meirong;Lim, Kwang-Mi;Koh, Young-Jin;Wang, Li-Song;Hur, Jae-Seoun
    • Mycobiology
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    • 제34권3호
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    • pp.124-127
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    • 2006
  • This study was aimed at evaluating the antioxidant activities of methanol extract of Thamnolia vermicularis. The antioxidant activity, reducing power, superoxide anion radical scavenging and free radical scavenging activities were studied. The antioxidant activity of the extract correlated with its concentration ($0.2{\sim}2\;mg/ml$) in the reaction mixtures containing linoleic acid. Upto 67% of lipid peroxidation was inhibited by 2 mg/ml of the lichen extract. The extract showed strong free radical scavenging activity similar to that of BRA (positive control) in a manlier of concentration dependent. The lichen extract also showed moderate effects on superoxide anoin scavenging activity and reducing power, which was not so effective as that of Quercetin and BHA used as positive controls. This study suggests that T. vermicularis lichen can be used as a novel source of natural antioxidant.

국내 유통 중인 식용식물 추출물의 항산화효과 (Anti-oxidative Activities of Commercial Edible Plant Extracts Distributed in Korea)

  • 김경범;유기환;박하얀;정종문
    • Applied Biological Chemistry
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    • 제49권4호
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    • pp.328-333
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    • 2006
  • 많은 식물 추출물들은 항산화 효능을 지니고 있으나 대량 생산 공정시 그들의 활성을 잃어버리는 경향이 있다. 따라서 본 본문에서는 대량 생산 공정을 거쳐 국내 유통 중인 43종의 식용식물 추출물을 대상으로 총 페놀 함량, DPPH 라디칼 포착 효능, 그리고 superoxide anion 라디칼 포착 효능을 측정하였다. 그 결과 개똥쑥(Artemisia annua, whole plant), 마태(Ilex paraguariensis leaf), 엉겅퀴(Silybum marianum, fruit 그리고 leaf), 유근피(Ulmus pumila, bark), 운지버섯(Coriolus versicolor, fruit) 그리고 울금(Curcuma longa, root 그리고 stem) 추출물은 70 mg/g 이상의 높은 페놀화합물을 함유하는 것으로 나타났다. DPPH 라디칼의 포착 효능에서 개똥쑥, 마테, 솔잎(Pinus densiflora, leaf), 엉겅퀴, 유근피, 그리고 울금 추출물의 $SC_{50}$ 값 측정 결과 각각 $53.96{\pm}0.81ppm,\;24.61{\pm}2.12ppm,\;35.96{\pm}1.11ppm,\;57.45{\pm}2.13ppm,\;55.25{\pm}1.65ppm$ 그리고 $12.99{\pm}1.67ppm$으로 나타났다(비타민 C의 $SC_{50}$값: $3.86{\pm}0.81ppm$). 또한 superoxide anion 라디칼 포착 효능에서는 개똥쑥, 계피(Cinnamomum zeylunicum, bark), 마테, 복분자(Rubus coreanus, fruit 그리고 leaf), 상엽(Morus alba, leaf), 솔잎, 엉겅퀴, 유근피, 운지버섯, 울금, 자소엽(Perilla frutescens var. acuta, leaf) 그리고 히비스커스(Hibiscus sabdariffa, leaf) 그리고 flower) 추출물의 $SC_{50}$ 값 측정 결과 각각 $53.21{\pm}1.83ppm,\;50.12{\pm}2.12ppm,\;5.59{\pm}0.84ppm,\;41.60{\pm}8.93ppm,\;20.19{\pm}0.97ppm,\;15.19{\pm}1.66ppm,\;21.20{\pm}1.88ppm,\;15.71{\pm}0.91ppm,\;55.48{\pm}2.42ppm,\;52.12{\pm}2.44ppm,\;23.80{\pm}1.98ppm$ 그리고 $11.14{\pm}0.51ppm$인 것으로 나타났다(비타민 C의 $SC_{50}$ 값:$9.61{\pm}0.93ppm$). 특히 마테 추출물과 솔잎 추출물은 총 페놀 함량이 높으면서 DPPH 라디칼과 superoxide anion 라디칼을 동시에 효율적으로 포착하는 효능을 지니고 있는 것으로 나타났다. 결론적으로 마테와 솔잎의 상업적인 추출물은 기능성 항산화제로서 유용한 소재로 사용 가능 할 것으로 사료된다.

포도씨 추출물의 항산화 효과 및 소화효소 저해 효과 (Antioxidative Effect and Digestive Enzyme Inhibition of Grape Seed Extract (GSE))

  • 장영선;정종문
    • 한국식품영양과학회지
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    • 제39권6호
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    • pp.783-788
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    • 2010
  • 본 연구에서는 GSE의 항산화제와 비만 예방 및 치료제로서의 식품적용 가능성을 알아보기 위해 DPPH radical, superoxide anion radical 및 hydroxyl radical 포착효과를 확인하였으며, 몇 가지 소화효소(단백질 분해효소, 탄수화물 분해효소, 지방분해효소)의 저해효과를 측정하였다. 그 결과 GSE는 우수한 항산화 효과를 가지고 있는 것으로 나타났으며 특히, vitamin C보다 DPPH radical 소거효과가 약 2배, superoxide anion radical 소거효과가 약 2.7배 우수한 것으로 나타났다. 또한, GSE는 소화효소인 trypsin, $\alpha$-chymotrypsin, $\alpha$-amylase, $\alpha$-glucosidase, lipase에 대한 저해효과를 갖고 있는 것으로 확인되었다. 이상의 결과로 GSE는 항산화 효과와 비만 예방 및 개선을 위한 유용한 소재로 사용될 수 있을 것이라 생각된다.

수입산 열대·아열대 과일의 항산화 활성 비교연구 (Comparative study of antioxidant activity of imported tropical and subtropical fruits)

  • 정해정
    • 한국식품저장유통학회지
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    • 제22권4호
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    • pp.577-584
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    • 2015
  • 본 연구에서는 수입산 열대 아열대 과일의 항산화 효과를 비교하기 위하여 총 폴리페놀 함량, DPPH radical 소거능, ABTS radical 소거능, superoxide anion radical 소거능, FRAP 활성, tyrosinase 저해효과, 환원력 등을 측정하였다. 총 폴리페놀 함량은 석류가 12.22 mg GAE/g으로 가장 높았고 그 다음 순으로 파인애플이 3.77 mg GAE/g이었으며, 용과, 그린키위, 파파야, 옐로우망고가 2.45~2.99 mg GAE/g의 범위로 나타났다. 석류는 DPPH, ABTS, superoxide anion radical 소거능, 환원력에서 다른 과일보다 높은 활성을 보여주었고 그 다음으로 파인애플이 높은 활성을 보였다. 특히 석류는 추출물의 농도가 증가함에 따라 전반적으로 활성이 증가하는 경향을 보였고 시료 농도 5 mg/mL에서는 DPPH radical 소거능과 ABTS radical 소거능 및 환원력이 양성대조군으로 사용한 ascorbic acid와 대등한 효과를 보였다. 반면에, 용과와 파파야는 대부분의 항산화 효과 실험에서 낮은 활성을 나타내었다.

평위산(平胃散) 약침액(藥鍼液)의 활성산소 및 활성질소 소거능 (Scavenging Property of Pyungwi-san Herbal-acupuncture Solution on ROS and RNS)

  • 이효승;문진영
    • 동의생리병리학회지
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    • 제21권1호
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    • pp.165-170
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    • 2007
  • Pyungwi-san(PWS) have been using as a basic prescription of digestive disorder in Korean traditional medicine. This study was performed to examine the in vitro antioxidant activity of the extract using different antioxidant tests including by 1,1-diphenyl-2-picryl-hydrazil (DPPH) radical scavenging, superoxide anion radical scavenging, metal chelating hydrogen peroxide scavenging, lipid peroxydation protective effect and scavenging effect of nitric oxide and peroxynitrite. Herbal-acupuncture solution of PWS(PWS-HS) exhibited a concentration-dependent inhibition of DPPH radical adduct formation and it showed dose-dependent free radical scavenging activity onto superoxide anions. In addition, the result of metal chelating hydrogen peroxide scavenging and ammonium thiocyanate experiments showed that PWS-HS was an active scavenger of hydroxyl radicals. Furthermore, it was also found to be effective in scavenging nitric oxide and peroxynitrite, well-known cytotoxic species that can oxidize several cellular components such as proteins, lipids and DNA.

마카 추출액 첨가에 따른 시럽의 품질특성과 항산화성 (Quality Characteristics and Antioxidant Activity of Syrup Added with Maca (Lepidium meyenii) Extract)

  • 정해정;박한나;추영란;전인숙;강용수
    • 한국식품저장유통학회지
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    • 제17권2호
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    • pp.236-242
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    • 2010
  • 음료 베이스용 시럽을 개발하기 위하여 마카 추출액을 다양한 수준(0%, 7%, 14%, 21%, 28%)으로 첨가하고 품질 특성 및 항산화활성을 측정하였다. pH는 대조군보다 첨가군이 낮았고 시럽의 당도는 시료간에 유의적인 차이가 없었으며 점도는 마카추출액의 농도가 증가할수록 증가하였다. 명도를 나타내는 L값은 마카 추출액의 첨가비율이 증가할수록 감소하였고 b값은 증가하였다. 기호도 검사 결과 향, 단맛 및 전반적인 기호도면에서 시료간에 유의적인 차이가 없는 것으로 나타나서 마카 추출액을 28%까지 첨가하여 시럽을 제조하여도 관능성에 부정적인 영향을 미치지 않을 것으로 여겨진다. 마카 시럽의 총폴리페놀 함량은 마카추출액의 첨가량이 증가할수록 증가하여 28% 첨가군이 가장 높게 나타났고 DPPH radical 소거능과 superoxide anion radical 소거능 역시 마카 첨가군이 대조군보다 유의적으로 높게 나타났다.

Hepatopotective Effects of Black Rice on Superoxide Anion Radicals in HepG2 Cells

  • Shim, Sang-In;Chung, Jin-Woong;Lee, Jeong-Min;Hwang, Kwon-Tack;Sone, Jin;Hong, Bum-Shik;Cho, Hong-Yon;Jun, Woo-Jin
    • Food Science and Biotechnology
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    • 제15권6호
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    • pp.993-996
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    • 2006
  • Cyanidin 3-glucoside (C3G) isolated from black rice was investigated for hepatoprotective effects in HepG2 cells under oxidative stress. When an increase in the production of reactive oxygen species (ROS) was induced by gramoxone, cell viability was drastically decreased by 42%. However, in the presence of C3G, no hepatocytic damage was observed in HepG2 cells treated with gramoxone. C3G was found to manifest a stronger scavenging effect (91%) on superoxide anion radical ($O_2\;^{.-}$) than any of the other natural and synthetic antioxidants. Results suggest that C3G from black rice possesses hepatoprotective effects in vitro, which may be, at least in part, due to $O_2\;^{.-}$ scavenging.

Research in the antioxidant of Phellinus linteus mycelia

  • Nakamura, Tomoyuki;Akiyama, Yukihito;Matsugo, Seiichi;Shibata, Keiji;Kawagishi, Hirokazu
    • Journal of Photoscience
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    • 제9권2호
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    • pp.421-423
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    • 2002
  • Phellinus linteus mycelia have many pharmacological effects, although their pharmacological efficacy principles have not been known yet. In the course of screening for biological activity of the extracts of Phellinus linteus mycelia, we found strong antioxidative activity in some fraction of water-insoluble. Therefore, we tried to isolate the active principle(s) from the extract. The isolation of the active compound was guided by superoxide anion radical scavenging activity. As a result, caffeic acid was isolated as an active compound. The IC$\_$50/ of the compound was 3.05 $\mu$g/ml (16.9$\mu$M).

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나문재 분말과 추출물 첨가 절편의 항산화 활성 (Antioxidative Activity of Jeolpyun containing Suaeda glauca (Bunge) Bunge Powder and Extract)

  • 박경숙
    • 한국식품영양학회지
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    • 제33권5호
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    • pp.561-569
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    • 2020
  • In this study, the antioxidative activity of Jeolpyun containing S. glauca (Bunge) Bunge powder (2%, 4%, 6%, and 8%) and extract (2%, 4%, 6%, and 8%) was evaluated based on the total polyphenol contents, electron-donating ability, scavenging of superoxide anion radical, and decomposition of hydrogen peroxide. Total polyphenol contents of Jeolpyun containing 8% S. glauca (Bunge) Bunge powder were the highest with a value of 2,280±0.00 ㎍ GAE/mL. It was observed that total polyphenol content exhibited a significant relation with concentrations at p<0.05. The electron-donating ability of Jeolpyun containing 8% S. glauca (Bunge) Bunge extract was the highest with a value of 83.93±0.69%. The electron-donating abilities revealed significant differences between concentrations (p<0.05). The superoxide radical scavenging ability of the blank was 0.01523±0.00068 and Jeolpyun containing 6% S. glauca (Bunge) Bunge powder was the highest with a value of 0.00977±0.00842. The hydrogen peroxide decomposing ability of Jeolpyun containing 0% S. glauca (Bunge) Bunge powder was -0.00377±0.0049; 8% S. glauca (Bunge) Bunge powder revealed the highest decomposing ability of -0.0476±0.0234. Hydrogen peroxide decomposing abilities revealed significant differences between concentrations (p<0.05). Jeolpyun containing S. glauca (Bunge) Bunge powder and extract demonstrated improved antioxidative activities.

Evaluation of in vitro antioxidant activities of the methanol extracts of Glinus oppositifolius and Trianthema decandra

  • Mazumder, Upal Kanti;Gupta, Malaya;Haldar, Pallab Kanti;Kandar, Chandi Charan
    • Advances in Traditional Medicine
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    • 제7권3호
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    • pp.290-296
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    • 2007
  • Glinus oppositifolius and Trianthema decandra belonging to the Ficoidaceae family were commonly used by tribal peoples for the treatment of liver disorders and cancer. The preliminary phytochemical screening of those plants showed the presence of flavonoids, terpenoids, tannins and saponins. The aim of this study was to evaluate the in vitro antioxidant activities of the methanol extracts of Glinus oppositifolius (MEGO) and Trianthema decandra (METD). The antioxidative capacities of MEGO and METD were determined by the following four complementary assay; DPPH radical scavenging assay, superoxide anion generation by xanthine-xanthine Oxidase assay, hydroxyl radical scavenging assay and $Fe^{2+}$-ascorbate induced by lipid peroxidation assay. The $IC_{50}$ values of the both extracts were calculated from the inhibition curve. The $IC_{50}$ MEGO and METD in DPPH, superoxide anion, hydroxyl radical scavenging and lipid peroxidation assay are 1.85, 7.31, 13.95, 22.82 and 2.21, 9.78, 14.87, 19.76 ${\mu}g/ml$ respectively. Both the extracts exhibited a significant antioxidant effects.