• 미생물학회지
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• 제53권4호
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• pp.235-241
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• 2017

본 연구는 포도의 과피에서 분리한 효모 Pichia의 생리활성 증진효과를 연구하기 위한 것이다. 두 균주는 18S rRNA 염기서열분석에 근거하여 Pichia manshurica GU-3와 Pichia terricola GU-4로 각각 동정되었다. 주사전자현미경 분석을 통해 YPD 배지에서 배양한 두 분리세균은 세포표면에 출아와 출아흔적을 가지고 있었으며 전형적인 타원형을 보여주었다. 단일 및 혼합 Pichia 배양의 생리활성을 비교 관찰한 결과, 72시간 배양한 후, 혼합배양에서 tyrosinase억제, ACE 억제, 항산화 최대활성은 각각 81.7%, 45.9%, 42.7%로 나타났다. Superoxide dismutase-유사활성은 혼합배양에서 약 30%로 측정되었다. 이 연구를 통해서 혼합배양된 Pichia 종들은 생리활성을 증진시켰으며, 생리활성을 가지는 산물 개발의 가능성을 가지는 것으로 입증되었다.

• KSBB Journal
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• 제29권5호
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• pp.372-379
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• 2014

Methanol extract (1.0 wt%) of Scutellaria baicalensis George satisfied preservation standard of CTFA (The Cosmetics, Toiletry, and Fragrance Association) against Staphylococcus aureus, Pseudomonas aeruginosa, Candida albicans and Escherichia coli which were inoculated in skin lotion. Even at a low concentration (0.01 wt%) the extract showed high superoxide dismutase-like activity. The CTFA standard could also be satisfied for the above four strains when methanol extract of Liriope platyphylla were combined with the 1.0 wt% extract of S. baicalensis George. This result suggests that extract of L. platyphylla does not hinder the preservation activity of S. baicalensis George. Moreover, skin moisture content could be maintained for 6 hours after the application of a cream containing the extract of L. platyphylla.

• 동아시아식생활학회지
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• 제12권1호
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• pp.23-31
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• 2002

한약재를 기능성 식품에 이용하기 위하여 한약재의 생리활성 인자를 탐색할 목적으로 한약방에서 널리 이용되고 있는 황기(Astragalus membranaceus Bunge), 국화(Chrysanthemum morrifolium Ramat), 구기자(Lycium chinensis Miller), 감초(Glycyrrhiza uralensis Fischer), 당귀(Angelica gigas Nakai), 대추(Zizyphus jujuba Miller), 작약(Paeonia lactiflora Pallas), 천궁(Cnidium officinale Makino)을 물과 에탄올로 추출하여 항산화 활성을 DPPH법, SOD유사활성 측정법, thiocyanate법 및 TBARS법으로 측정하였다. 에탄을 추출물에 비하여 물 추출물의 페놀성 화합물의 함량이 높게 나타났으며, 구기자 물 추출물의 함량이 1.66%로 가장 높게 나타났다. 물 추출물 중 국화는 63.0% 그리고 에탄을 추출물 중 감초가 63.8%으로 BHT의 전자공여능(49.7%) 보다 높게 나타냈으며, SOD 유사활성은 물 추출물 중 황기에서 41.8%의 높은 활성능을 보였으며 에탄을 추출물 중 구기자에 38.2%의 높은 활성능을 보였다. 물 추출물 중 감초와 대추가 에탄을 추출물 중에는 당귀와 국화의 TBARS 값이 대조구에 비하여 5.0이상으로 항산화 활성이 BHT의 항산화 활성과 비슷하게 나타났으며, Thiocyanate법에의한 항산화 활성은 대조구와 비교하여 국화, 구기자, 감초, 작약의 물 추출물의 유도기간이 8일까지 연장되는 것을 볼 수 있으며 에탄을 추출물 중에는 감초와 국화의 유도기간이 8일가지 연장되었다. 이상의 결과에서 황기, 국화, 구기자, 감초, 당귀, 대추, 작약, 천궁의 물과 에탄을 추출물 중에는 in vitro 항산화 실험 계에서 항산화 활성을 나타내는 생리활성 성분이 있는 것으로 나타났다.

• 동아시아식생활학회지
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• 제24권3호
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• pp.392-399
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• 2014

산사에 함유되어 있는 생리활성 물질의 특성을 알아보고 70% methanol, 70% ethanol, chloroform:methanol(CM, 2:1, v/v), n-butanol 및 ethyl acetate(EA)의 5가지 용매를 사용하여 추출한 추출물의 용매별 항산화 활성 측정을 통하여 산사의 항산화 활성 및 천연 기능성 식품 재료로서의 가치를 검토하고자 본 실험을 수행하였다. 산사 과육의 total phenol 함량은 70% methanol, 70% ethanol, CM, EA, n-butanol 추출물 순으로 높게 나타났으며, 특히 70% methanol 및 70% ethanol 추출물은 각각 71.46 mg/g, 70.41 mg/g의 높은 함량을 보였다. Total flavonoid 함량은 CM(1.63 mg/g), n-butanol(1.59 mg/g), 70% methanol(1.26 mg/g), 70% ethanol(1.26 mg/g) 및 EA(1.12 mg/g) 순으로 높게 측정되었다. $NO_2$ radical 소거 활성은 total phenol 함량과 동일한 경향으로 나타났으며, ${\beta}$-carotene에서의 항산화 활성은 70% methanol, 70% ethanol, n-butanol, CM, EA 추출물, superoxide dismutase(SOD) 유사 활성은 70% methanol, 70% ethanol, CM, n-butanol, EA 추출물 순으로 높은 것으로 나타났다. 대부분 70% methanol 및 70% ehtnaol 추출물에서 활성이 높게 측정되었으며, 이는 산사 속에 함유되어 있는 total phenol 및 flavonoid와 같은 항산화 성분 때문인 것으로 추정되며, 특히 total phenol에 의한 것으로 생각된다. 따라서 산사는 항산화제 및 기능성 식품 소재로 활용 가능성이 높을 것으로 사료된다.

• 대한임상검사과학회지
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• 제43권2호
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• pp.75-81
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• 2011

To clarify the oxidative stress of reactive oxygen species (ROS) and the effect of Chrysanthemum morifolium L. (CM) flower extract on the cultured neuroglial cells (C6 glioma) damaged by ROS, cell adhesion effect was measured by colorimetric assay after cultured C6 glioma cells were treated with various concentrations of glucose oxidase (GO) for 5 hours. For the antioxidative effect of CM flower extract, cell adhesion activity (CAA), superoxide dismutase (SOD)-like activity and lactate dehydrogenase (LDH) activity were assessed against GO-induced cytotoxicity on same cultures. In this study, GO remarkably decreased CAA dose-dependently, and the $XTT_{90}$ and $XTT_{50}$ values were measured at 15 mU/mL and 50 mU/mL following the treatment of C6 glioma cells with 5~60 mU/mL of GO. The CM flower extract significantly increased cell adhesion activity damaged by GO-induced cytotoxicity, and it also showed the SOD-like activity and the decrease of LDH activity. From these results, it is suggested that GO was cytotoxic on cultured C6 glioma cells, and CM flower extract showed antioxidative effects as shown by the increased CAA, SOD-like activity and the decrease of LDH activity on GO-induced cytotoxicity on the same cultures.

• 한국식품영양학회지
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• 제17권1호
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• pp.18-24
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• 2004

천연 식물류 추출물을 첨가하여 제조한 약주의 영양성분과 항산화 활성을 비교 분석한 결과 수용성 페놀화합물은 천연식물 첨가 약주에서 대조군(5.5 mg/kg)에 비하여 약 1.7배 더 높게 정량 되었으며, 잔존율도 47.4%로 더 높았다. 유리당은 대조군에서는 arabinose와 maltose가 각각 16.2, 15.6 mg/100 g 검출된 반면, 천연식물을 첨가한 약주에서는 lactose가 6.9 mg/100 g으로 가장 높은 함량이었고 maltose는 검출되지 않았다. 무기물의 함량은 인> 칼륨 > 마그네슘 >칼슘 >철분의 순으로 높게 검출되었고, 철분과 나트륨은 숙성 기간의 경과에 따른 함량 차이가 거의 없었다. 아미노산 함량은 숙성 기간의 경과와 더불어 감소하였는데 대조군의 경우 숙성 30일에 총 아미노산 함량이 약 72% 감소한 반면 천연식물을 첨가한 약주의 경우 약 6.8%로 감소 비율이 훨씬 낮았다. 약주를 각기 다른 농도로 희석하여 전자공여능을 측정한 결과 대조군의 경우 희석배수가 증가할수록, 숙성기간이 경과할수록 전자공여능이 저하되는 경향을 나타내었다. 반면 천연식물류를 첨가한 약주는 숙성 30일까지 희석 배수에 관계없이 95.7∼96.7%의 높은 전자공여능을 나타내었다. SOD 유사활성은 희석배수 및 숙성기간의 경과와 서로 반비례하는 경향을 나타내었다. 가장 높은 SOB 유사활성을 나타낸 숙성 3일째의 천연식물류 첨가 약주의 경우 원액과 2배 희석한 시료에서 각각 51.5, 53.9%의 SOD 유사활성을 나타내었다.

• 한국식생활문화학회지
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• 제36권5호
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• pp.522-529
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• 2021

This study was conducted to analyze the antioxidant and antidiabetic activities of acorns according to the types of Quercus serrata Thunb (QST) and Q. acutissima Carruther (QAC). The total polyphenol contents of the extracts from QST and QAC were 220.59 and 320.96 mg GAE/g, respectively. The content of total polyphenol of QAC was higher than that of QAC (p<0.001). DPPH (2,2 Diphenyl 1 picrylhydrazyl) radical scavenging activity, reducing power and superoxide dismutase (SOD)-like activity were increased in a concentration-dependent manner by both acorn extracts, and QAC showed high activity in all antioxidant experiments (p<0.05). The inhibitory activities of α-glucosidase and α-amylase were also increased in a concentration-dependent manner, and QAC showed higher inhibitory activity than QST (p<0.05). Our study indicates that QST and QAC are functional food materials with high antioxidant and antidiabetic activities. In addition, QAC has a higher physiological activity than QST.

• 대한본초학회지
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• 제21권4호
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• pp.109-113
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• 2006

Objectives : In this study, anti-oxidant activity of Taraxacum platycarpum is confirmed to investigate cosmeceutical activity for utilization as a cosmetic ingredients. Methods : In the anti-oxidant and whitening effect experiment, the electron donating ability of Taraxacum platycarpum extracts, their SOD-like activity, and the inhibitory activity of xanthine oxidase, tyrosinase were examined. Results : Radical-scavenging activity of water and ethanol extract was examined using ${\alpha},{\alpha}-diphenyl-{\beta}-picrylhydrazyl$ (DPPH). Water and ethanol extract from Taraxacum platycarpum showed 62.9% and 54.7% at 500 ppm concentration in DPPH radical inhibition, respectively. In the test of superoxide dismutase (SOD)-like activity, water extract showed 63.4% at 1,000 ppm concentration, while ethanol extract showed 49% at 1,000 ppm concentration. In the test of xanthine oxidase inhibition, ethanol extract showed 66.8% at 1,000 ppm concentration. Tyrosinase inhibition effect related to whitening effect showed 36.3% and 54.2% in ethanol extract and water extract at 1,000 ppm concentration, respectively. Conclusion : According to these results, it is possible that the extract of Taraxacum platycarpum can be used as a new natural material of cosmetic industry.

• 대한한의학방제학회지
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• 제9권1호
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• pp.335-354
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• 2001

This study was designed to investigate biological activity of antler extract added medical plants. The scavenging activity of DPPH radical was low scavenging activity at 0.01% concentration. But in the 0.05% and higher concentration, electron donating ability(EDA) is above 50% except Kongindangagam(48.5%) and significantly good above 70% in the 4 extracts. Superoxide dismutase(SOD)-like activity was 44.3% and 45.1% extracts of Ohjayenjongwhangami and M(market sample), Inhibition of xanthine oxidase were above 50% at 0.5% concentration except Boshingiwhangwhangami and from 62.4% to 84.9% in the 4 extracts. Inhibition rate of boshingiwhangwhangami was hasty increased from 33.5% to 77.5% at 1.0% concentration and others the higher concentration, the more increasing inhibition. Angiotension I-converting enzyme(ACE) inhibitory activities were high activity all of extracts. In the 0.5% concentration, ACE inhibition was above 80%. Especially 0.01% concentration of M was presented 81.8%. The study which conducted to investigate the effect of feeding antler extract group for 50 days on sperm concentration, Ca contents of serum, kidney and femur in rats was higher than that saline group.

• International Journal of Industrial Entomology and Biomaterials
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• 제44권2호
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• pp.37-43
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• 2022

Silkworm food has been found to be effective for dementia, liver function, lowering blood sugar, and possesses antioxidant properties, which has been attracting attention as a health functional food. In this study, methods for enhancing the functionality of silkworms were explored and the production potential of high-functional silkworms was analyzed. For enhancing antioxidant activity, ascorbic acid, caffeic acid, laminarin, and glutathione were injected or fed to 5th instar silkworms, and the antioxidant activity of silkworm extract was comparatively analyzed. There was no significant change in polyphenol and flavonoid content, but it was confirmed that 2,2-diphenyl-1-picrylhydrazyl radical scavenging ability, superoxide dismutase-like activity, and reducing power were slightly increased after injection of ascorbic acid, caffeic acid, and glutathione. To confirm the increase in antioxidant efficacy through feeding, an inducer was mixed with sucrose and sprayed on mulberry leaves. As a result, the growth rate of silkworms improved and all indicators of antioxidant activity were improved in silkworms fed with ascorbic acid and glutathione. Considering these results, producing high-functional silkworms was deemed possible.