• Title/Summary/Keyword: DPPH free radical 소거능

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Antioxidant Effect of Traditional food Ingredient (전통 식재료의 항산화 효과)

  • Lee, Jae-Hyeok;Park, Jeong-Sook
    • Journal of the Korea Convergence Society
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    • v.11 no.2
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    • pp.309-314
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    • 2020
  • This study was designed to investigate the antioxidant effects of 10 kinds of medicinal plants and vegetable extracts and total extracts. The cytotoxicity was measured by MTS assay, and the antioxidant activity was measured by DPPH free radical scavenging activity and Riboflavin-derived superoxide inhibitory activity (SQA). As a result, cytotoxicity was safe for all 10 medicinal plants, vegetable extracts and total extracts. DPPH free radical scavenging ability was observed in Cinnamomum cassia Blume, Eugenia caryophyllata Thunb. Arctium lappa, Total extract was excellent, and Riboflavin-derived superoxide inhibitory activity (SQA) was found in Cinnamomum cassia Blume, Arctium lappa, Prunus mume Sieb. et Zucc., Excellent, but total extract showed the best antioxidant effect. As a result of comparing the antioxidant effects of medicinal plants and vegetables using traditional ingredients, the antioxidant activity was increased when used as a mixture than when used alone. It is considered that it can be used as an antioxidant functional material, and it is expected to be of value when developing antioxidant material in the future.

Antioxidant Activity and Tyrosinase Inhibition Effect of Makgeolli Using Mistletoe Cultivated on Prunus mume (매실나무(Prunus mume) 겨우살이 막걸리의 발효기간 및 겨우살이 함량 차이에 따른 항산화활성 및 Tyrosinase 저해활성)

  • Heo, Jeong Won;Kwon, You Jin;Azad, Md Obyedul Kalam;Park, Cheol Ho
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2018.04a
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    • pp.87-87
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    • 2018
  • 매실나무겨우살이 막걸리의 생리적 효능을 검정하여 의약 화장품의 소재화 가능성을 검토할 목적으로 발효기간과 겨우살이 함량에 따른 총 폴리페놀, 플라보노이드 함량, DPPH free radical 소거능을 측정하였고, tyrosinase 저해활성은 5분 간격으로 65분간 측정하였다. 막걸리는 백미와 기장을 7:3의 비율로, 겨우살이의 함량을 0%, 5%, 10%로 달리하여 10일 간격으로 최대 30일까지 Shaking incubator($30{\sim}35^{\circ}C$, 100 rpm)에서 발효하였고, 발효가 끝난 막걸리는 80 mesh 망으로 여과하였다. 총 폴리페놀 함량은 10일에 최대치를 나타내었고, 0%는 $633.53{\mu}g/ml$, 5%는 $759.67{\mu}g/ml$, 10%는 $752.2{\mu}g/ml$을 나타내었다. 기간이 경과함에 따라 감소하는 경향이었으며 30일에 0%는 $507.57{\mu}g/ml$, 5%는 $570.13{\mu}g/ml$, 10%는 $551{\mu}g/ml$를 함유하고 있는 것으로 나타났다. 총 플라보노이드 함량 또한 10일에 최대치를 나타내었고, 0%는 $16.18{\mu}g/ml$, 5%는 $63.87{\mu}g/ml$, 10%는 $62.99{\mu}g/ml$였고, 기간이 경과함에 따라 감소하는 경향성을 나타내어 30일에 0%는 $0.59{\mu}g/ml$, 5%는 $10.98{\mu}g/ml$, 10%는 $1.18{\mu}g/ml$를 함유하였다. DPPH free radical 소거능은 0%의 경우 10일에 72.34%로 최대치가 나타났고, 30일에 58.61%로 가장 낮은 소거능을 보여주어 기간이 경과함에 따라 감소하는 경향성을 보여주었다. 하지만, 겨우살이 첨가군인 5%(10일:91.13%, 20일:91.09%)와 10%(10일:91%, 20일:90.8%)는 비교적 차이가 없었고, 발효기간이 30일이 경과한 후 5%는 93.46%, 10%는 92.3%로 최대값을 보여주었다. Tyrosinase 저해활성은 DPPH free radical 소거능이 가장 좋은 30일 발효 막걸리를 측정하였다. 모든 겨우살이 첨가군에서 5분이 경과하였을 때, 0%는 82.68%, 5%는 69.29%, 10%는 79.53%의 저해활성을 나타내었으며, 시간에 유의적으로 저해활성이 감소하였다. 본 연구 결과에 따르면, 겨우살이 막걸리의 총 폴리페놀과 플라보노이드 함량은 기간이 경과함에 따라 감소함에도 불구하고, DPPH free radical 소거능은 증가함을 알 수 있었다. Tyrosinase 저해활성은 5% 첨가 막걸리에서 가장 낮았으며, 겨우살이를 첨가하지 않은 0%에서 가장 저해활성이 높고 오랜시간 유지되는 것을 확인할 수 있었다.

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Antioxidative Activities of Castanea Crenata Flos. Methanol Extracts (밤꽃(Castanea Crenata Flos.) 메탄올 추출물의 항산화 효과)

  • Choi, Chang-Suk;Song, En-Sung;Kim, Jang-Su;Kang, Myung-Hwa
    • Korean Journal of Food Science and Technology
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    • v.35 no.6
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    • pp.1216-1220
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    • 2003
  • The antioxidative activities of methanol extracts of chestnut flower (Castanea Crenata Flos.) were determinated in vitro using an experimental model system. Solid yield of chestnut flower extracts was 6.26% and total phenolic acid accounted for about 20% of the crude extract. The DPPH radical scavenging activity of methanol extracts prepared from chestnut flower was 17.22%. Although the DPPH radical scavenging activity of chestnut flower extracts was lower than that of other antioxidants, chestnut flower extracts showed continuous activity by time course. The SOD-like activities of methanol extracts prepared from chestnut flower were 65.10%, 95.70% in BHT, 93.29% in quercetin, and 30.30% in ascorbic acid. Chestnut flower extracts showed 51.45% inhibitory effect on peroxidation of egg yolk lecithin.

The Anti-inflammatory Effect and DPPH Free Radical Scavenging Capability of Rhizoma drynariae Aqueous Extract (골쇄보 열수추출물 약침액의 항염증반응 및 DPPH 라디칼 소거능 활성에 대한 연구)

  • Kim, Yong-Min;Kim, Ee-Hwa
    • Korean Journal of Acupuncture
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    • v.32 no.4
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    • pp.169-176
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    • 2015
  • Objectives : This study is to investigate the effects of Rhizoma drynariae aqueous extract(RDA) on cell cytotoxicity, Nitric Oxide (NO) and Prostaglandin $E_2(PGE_2)$ production and 1,1-diphenyl-2-picryl ghdrazyl(DPPH) free radical scavenging capability. Methods : Cell cytotoxicity was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide(MTT) assay. The production of NO was measured by Griess assay. The production of $PGE_2$ was measured by immunoassay. And, the anti-oxidant activity was measured by the DPPH method. Results : Cell cytotoxicity in 50, 100, 200 and $400{\mu}g/ml$ RDA did not increase significantly compared to the RDA untreated group. RDA($200{\mu}g/ml$ and $400{\mu}g/ml$) inhibited NO and $PGE_2$ production in lipopolysaccharide-stimulated RAW 264.7 cells. RDA had high DPPH free radical scavenging capability. Conclusions : This study indicates that RDA inhibits NO and $PGE_2$ production in lipopolysaccharide-stimulated RAW 264.7 cells and improve DPPH free radical scavenging capability. RDA may have an anti-inflammation effect and an anti-oxidant activity.

Screening of Functional Compound of Abeliophyllum distichum Nakai for Optimize Extraction Condition and Efficacy Evaluation (미선나무의 추출조건 확립 및 효능평가를 통한 기능성 탐색)

  • Cho, Seok-Cheol;Kim, Myong-Ki
    • Journal of Convergence for Information Technology
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    • v.7 no.6
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    • pp.61-67
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    • 2017
  • To evaluate optimum conditions of extract active components, extraction of Abeliophyllum distichum Nakai was performed with various ethanol and water mixture at ethanol concentration of 0, 20, 40, 60, 80 and 100%(v/v) and extraction methods. Higher polyphenol and flavonoids contents of extract achieved at 2 hours of reflux extraction in 80% ethanol. The highest DPPH free radical scavenging activity of the stem extracts by soaking method and butanol fractions of leaf extracts are 71.3% and 103.3% respectively. The results suggested that Abeliophyllum distichum Nakai can be used for valuable natural resource.

Chemical Composition and Antioxidant Activities of Prunus salicina Formosa Produced in Gimcheon (김천산 자두 후무사의 화학적 성분과 항산화 활성)

  • Yoon, Ok-Hyun;Jeong, Bo-Young;Kim, Eun-Kyoung;Jeong, Yoon-Hwa
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.40 no.3
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    • pp.379-384
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    • 2011
  • The present study was designed to investigate the chemical composition and antioxidant activities of Prunus salicina Formosa produced in Gimcheon. The free sugar amounts in Prunus salicina Formosa were fructose>glucose>sucrose>maltose, and malic acid contents in Prunus salicina Formosa were the highest among all the organic acids found in the present study. Each Prunus salicina Formosa extract was obtained by treating Prunus salicina Formosa with distilled water, 80% ethanol, 60% acetone, and 80% methanol at 25 and $50^{\circ}C$. The highest contents of total polyphenol and flavonoid were observed in the 60% acetone extract and 80% ethanol extract, respectively. The 60% acetone extract exhibited the greatest DPPH radical scavenging ability, reducing power, and nitrite scavenging ability. However, SOD-like activity was not considerably different for all the extracts studied. The results from the present study could be helpful for developing antioxidant products using Prunus salicina Formosa produced in Gimcheon.

Free radical scavenging and α-glucosidase inhibitory effects of a roots extract of Aruncus dioicus var. kamtschaticus (재배 삼나물 뿌리 추출물의 자유 라디칼소거 및 α-glucosidase 저해활성)

  • Jeong, Gyeong Han;Kim, Tae Hoon
    • Food Science and Preservation
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    • v.23 no.7
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    • pp.989-994
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    • 2016
  • As part of our continuing search for bioactive natural products, the antioxidant and ${\alpha}$-glucosidase inhibitory activities of an 80% methanolic extract and organic solvent soluble-portions of Aruncus dioicus var. kamtschaticus roots were investigated by using a bioassay system. The antioxidant activity of A. dioicus var. kamtschaticus roots extract and organic solvent soluble-portions were assessed by examining with 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) ($ABTS^+$) radical scavenging. In addition, anti-diabetic effects of the A. dioicus var. kamtschaticus root extract and organic solvent soluble-portions were tested via ${\alpha}$-glucosidase inhibition assay. The total phenolic contents of the products were determined by applying UV-VIS spectrophotometry. All tested samples showed dose-dependent radical scavenging and ${\alpha}$-glucosidase inhibitory properties. In particular, the ${\alpha}$-glucosidase inhibitory and radical scavenging effects of the ethyl-acetate (EtOAc)-soluble portion from the roots of A. dioicus var. kamtschaticus were greater than those from other solvent-soluble portions. These results indicate that A. dioicus var. kamtschaticus could be considered a new effective source of natural antioxidants and anti-diabetic materials. More systematic research of the constituents of the roots of this A. dioicus variety will be conducted to further develop its antioxidative and anti-diabetic properties.

Biological Activities of Hominis Placenta Herbal Acupuncture prepared by Hydrochloric Acid Hydrolysis (염산 가수분해 추출법으로 조제된 자하거 약침액의 생리활성 효과)

  • Seo, Geun-Young;Lee, Sung-Won;Park, Sung -Joo;Kim, Sung-Chul;Sohn, In-Chul;Hwang, Sung-Yeoun;Ahn, Seong-Hun
    • Journal of Pharmacopuncture
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    • v.13 no.2
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    • pp.5-12
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    • 2010
  • Reactive Oxygen Species(ROS) are continuously produced at a high rate as a by-product of aerobic metabolism. Since tissue damage by free radical increases with age, the reactive oxygen species(ROS) such as hydrogen peroxide($H_2O_2$), nitric oxide(NO). Several lines of evidence provided that ROS appears to cause to develop aging-related various diseases such as cancer, arthritis, cardiovascular disease. In this study, we have conducted to investigate the biological activities of Hominis Placenta Herbal Acupuncture by measuring total polyphenol content, DPPH radical scavenging, ABTS radical scavenging, Superoxide dismutase(SOD)-like activity, Nitrite scavenging ability in vitro. The total polyphenol contents of Hominis Placenta Herbal Acupuncture was $24.6m{\ell}/m{\ell}$. Elctron donation ability on DPPH was 49.4%. The 2,2'-azinobis-3-ehtlbezothiazoline-6-sulfonic acid radical decolorization (ABTS) was 50.01%, similar 10 the DPPH free radical scavenging. The superoxide dismutase (SOD)-like activities of hominis placenta herbal acupuncture was 50.876%. The nitrite scavenging abilities at pH 1.5, pH 3.0, pH 6.0 were 52.8%, 29.4%, 15.4%, respectively; these abilities decreased as pH increased. We conclude that Hominis Placenta Herbal Acupuncture may be useful as potential sources of antioxidant.

A Study on the Antioxidant Activity of Hae-Songi Mushroom(Hypsizigus marmoreus) Hot Water Extracts (해송이 버섯 열수 추출물의 항산화 효과에 관한 연구)

  • Xu, Xiao-Mei;Jun, Joon-Young;Jeong, In-Hak
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.36 no.11
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    • pp.1351-1357
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    • 2007
  • "Hae-Songi" mushroom is a kind of Hypsizigus marmoreus, one of the edible mushrooms. Powder and hot water extracts of the mushroom fruit-body were investigated for their proximate composition, amino acid contents, ${\beta}-glucan$ contents, total phenolic contents and antioxidant activity. The measured antioxidant activity included free radical scavenging activity against DPPH, reducing power $Fe^{2+}$ chelating ability and SOD activity. Mushroom extracts exhibited in vitro antioxidant activity. This mushroom contained high protein (29%, total amino acid contents 204.86 mg/g), free amino acids (46.53 mg/g) and ${\beta}-glucan$(0.11%). At a concentration of 1% extracts solutions (w/v) according to different extraction times, DPPH free radical-scavenging activities were found to exhibit $89%{\sim}92%$ inhibition. Positive correlations $(R^2=0.9901{\sim}0.7424)$ were found between total phenolic content in the mushroom hot water extracts and their antioxidant activity. In this study, it is demonstrated that "Hae-Songi" mushroom may possess potential for use as a health food, due to theirantioxidant capacity.

Processing and Antioxidant Activity of Makgeolli Using Mistletoe Cultivated on Prunus mume (매실나무(Prunus mume) 겨우살이 막걸리의 제조 및 항산화활성)

  • Heo, Jeong Won;Kwon, You Jin;Azad, Md Obyedul Kalam;Park, Cheol Ho
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2018.04a
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    • pp.86-86
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    • 2018
  • 인공재배한 매실나무겨우살이를 이용한 기능성 막걸리를 개발하기 위해, 겨우살이, 기장과 쌀을 활용하여 원료의 배합비율 및 발효방법에 따른 총 폴리페놀, 플라보노이드 함량 및 DPPH free radical 소거능을 비교하였다. 최적의 배합비율을 찾기 위해 백미 100%, 백미와 기장 7:3, 5:5, 3:7 및 기장 100%의 비율로 막걸리를 제조하였다. 발효방법은 Shaking incubator($30{\sim}35^{\circ}C$, 100 rpm, 19 days), Hand Shaking($21^{\circ}C$, per 12hr, 19days)하였고, 발효가 끝난 막걸리는 80 mesh 망으로 여과하였다. 총 폴리페놀 함량은 Machine shaking과 Hand shaking 모두 쌀과 기장의 비율 7:3에 겨우살이를 10% 첨가한 막걸리가 각각 $795.83{\mu}g/ml$, $757.87{\mu}g/ml$로 가장 높았고, 기장 100% 막걸리가 각각 $503.73{\mu}g/ml$, $435.3{\mu}g/ml$로 가장 낮았다. 총 플라보노이드 함량은 Machine shaking, Hand shaking 모두 쌀과 기장의 비율이 7:3에 겨우살이를 10% 첨가한 막걸리가 $93.48{\mu}g/ml$, $84.56{\mu}g/ml$로 가장 높았고, 기장 100% 막걸리가 각각 $37.75{\mu}g/ml$, $21.86{\mu}g/ml$로 가장 낮았다. DPPH free radical 소거능은 겨우살이를 10% 첨가한 막걸 리가 가장 높았는데 Machine shaking은 평균 92.08%, Hand shaking은 평균 91.63%로 가장 높았으며 통계적으로 유의한 차이가 없었다. Machine shaking은 쌀과 기장의 비율이 7:3일 때, 73.37%, Hand shaking은 기장 100% 막걸리가 64.03%로 가장 낮았다. 결론적으로, 총 폴리페놀 및 플라보노이드 함량은 기장의 비율이 증가함에 따라 감소하는 경향을 보였고, DPPH free radical 소거능은 겨우살이를 첨가한 모든 막걸리에서 비교적 높았다. 발효방법은 Machine shaking이 Hand shaking 보다 총 폴리페놀 및 플라보노이드 함량, DPPH free radical 소거능이 비교적 높아 발효방법으로 더 적합하였다.

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