• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.1
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• pp.239-246
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• 2013

The purpose of this study was to find out the potential of the Mosidae(Adenophora remtriflora) leaf, one of the natural ingredients, for the cosmetics by measuring their antioxidant functions and skin improving effects. The result of the phytonutrient of the Mosidae leaf test shows, that the heat extract of Mosidae leaf DPPH has 9% higher ability than Ethanol extract.(p<0.05), but significant a difference was not found between the hydroxyl Radical of Mosidae leaf heat extract (65.22%) and Ethanol extract(63.50%). Mosidae leaf heat extract(40.82mg/mL) has much lower polyphenol compound than Ethanol extract(47.90mg/mL)(p<0.05). A clinical test of Mosidae leaf powder pack was performed for a group of 16 middle aged women(age between 35-60) from October 20 to November 17, 2011. Control group was used on the right cheek, and test group was used on left cheek for comparison. The procedure was twice a week for 4 weeks to identify and grade level of moisture, roughness, pore size and spot. After 4 weeks of testing, there were significant improvements in moisture enhancement and spot(p<0.05), subtle change in roughness and the size of the pores. Therefore, we confirmed skin improvement effect of Mosidae leaf as new cosmetic material.

• The Korea Journal of Herbology
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• v.31 no.3
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• pp.43-48
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• 2016

Objectives : The objective of this research was to investigate the antioxidant activities of stem bark of Maackia amurensis extract.Methods : Stem bark of Maackia amurensis extract were prepared using 70% methanol. Methanol extracts were fractionated to hexane, chloroform, ethyl acetate, butyl alcohol, water fractions and investigated. The antioxidant activities of fractions was evaluated by four different assays as total polyphenol contents, total flavonoid contents, DPPH(1,1-diphenyl-2-picrylhydrazyl) free-radical scavenging activity and ABTS(2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) scavenging ability.Results : The yield of methanolic extracts from stem bark of Maackia amurensis was 10.16%, whereas those of its solvent fractions (hexane, chloroform, ethyl acetate, butyl alcohol, and water) were 5.45, 11.39, 13.88, 26.07, and 40.80%, respectively. The total polyphenol contents and electron donating ability of 70% methanol extracts from stem bark of Maackia amurensis were 15.44 mg/g and 194.15 μg/mL of its IC₅₀, respectively. The 70% methanol extracts showed the highest antioxidant activity. The total polyphenol content and total flavonoid content of chloroform fractions were higher in each of 201.98 mg/g and 13.55 mg/g. The chloroform fraction showed the lowest levels of DPPH(IC₅₀, 183.95 μg/mL) and ABTS scavenging activity(IC₅₀, 10.0 μg/mL). The antioxidant activity was detected in methanol extract, chloroform fractions.Conclusions : These results indicate that 70% methanol extract and its fractions of stem bark of Maackia amurensis, especially chloroform fraction, have the properties of anti-oxidant suggesting stem bark of Maackia amurensis may be a candidate for natural and functional materials.

• Journal of Convergence for Information Technology
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• v.10 no.7
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• pp.232-239
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• 2020

This study evaluated the antioxidant and anti-inflammatory activity of ethanol extracts using three parts of the chives plant: the bulb, the leaf, and the flower. As a result of DPPH and ABTS radical scavenging ability, the scavenging activity of the flower extract was higher than that of the bulb and leaf. In addition, as a result of FRAP analysis, antioxidant activity increased in all extracts depending on the extract concentration. The total polyphenol content was high in the following order: flower (11.29±0.37 mgGAE/g) > leaf (6.61±0.14 mgGAE/g) > bulb (5.7±0.67 mgGAE/g) extract. The cytotoxicity of the three extracts against rat macrophage RAW264.7 cells and HaCaT cells, both of which are human cutaneous keratinocyte cell lines, was minimal. NO by LPS was generated as a result of examining the anti-inflammatory activity of each extract through the NO colorimetric analysis method and ELISA. TNF-α secretion was decreased to a significant level in the flower ethanol extract. Therefore, these results indicate that there is a high possibility that the ethanol extract of chives, a natural plant resource, can be used as a cosmetic raw material.

• Journal of Life Science
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• v.33 no.6
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• pp.498-505
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• 2023

Solanum tuberosum Linnaeus cv Hongyoung, which represents red potato, was developed in Korea. Hongyoung is known to have anti-oxidant, anti-inflammatory, anti-viral, and anti-tumor properties, but no research has been conducted on the growth inhibition and apoptosis effects of hongyoung in YD-10B oral cancer cells. In this study, the combined treatment of hongyoung ethanol extract (HEE) and cisplatin were examined to determine its ability to inhibit cancer cell growth, induce apoptosis, and inhibit matrix metalloproteinases (MMP)-2 and MMP-9 cancer metastasis. The cell viability was investigated using a 2-(2-methoxy-4-nitrophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H- tetrazolium monosodium salt (MTS) assay, and the ability to induce apoptosis was analyzed using an FACS analyzer. The mRNA expression and protein activity of MMP-2 and MMP-9 were measured via RT-PCR and zymography. The YD-10B oral cancer cells showed an increase in growth inhibition as the concentration of HEE increased. The combination of 200 µM cisplatin and 500 ㎍/ml HEE reduced the growth of the YD-10B oral cancer cells by more than 50% compared to cisplatin alone. When phorbol 12-myristate 13-acetate (PMA)-treated YD-10B oral cancer cells were co-treated with 200 µM cisplatin and 500 ㎍/ml HEE, both the mRNA expression and protein activity of the MMP-2 and MMP-9 decreased. In addition, the percentage of the sub-G1 phase, which indicates apoptosis ability, more than doubled when treated in combination with 200 µM cisplatin and 500 ㎍/ml HEE than when cisplatin alone was used. The results of this study therefore suggest the possibility of using a combination of HEE and cisplatin in the development of effective drugs to treat oral cancer.

• Applied Biological Chemistry
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• v.48 no.1
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• pp.65-69
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• 2005

The physiological activity of St. John's wort extracts were examined. Total phenol contents in the ethanol extracts $(246.0{\pm}10.5\;{\mu}g/ml)$ with St. John's wort leaf was higher than that in water extract $(237.4{\pm}13.2\;{\mu}g/ml)$. The electron donating ability in the water extracts and in the ethanol extracts were 95.0% and 95.2% respectively. Antioxidant protection factor of the ethanol extract was higher than that of the water extract. The water extract from St. John's wort leaves did not show an antimicrobial activity against Helicobacter pylori, but the ethanol extract revealed high antimicrobial activities such as 11 mm of clear zone in $100\;{\mu}g/ml$ of phenol content and 13 mm of clear zone in $150\;{\mu}g/ml$ of phenol content. The hot water extract showed an angiotensin converting enzyme inhibitory activity of 19.2%. The xanthin oxidase inhibitory activity of hot water and ethanol extract were very high, amounting to 84.8% and 100% respectively. The results suggested a possibility for developing the phenol compounds in St. John's wort as anti Helicobacter pylori, anti-oxidant and anti-gout agents.

• Journal of Acupuncture Research
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• v.31 no.1
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• pp.131-137
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• 2014

Objectives : This study is to investigate the effects of Acanthopanacis Cortex hot aqueous extract on nitric oxide(NO), prostaglandin E2(PGE2) production and DPPH(1,1-diphenyl-2-picryl hydrazyl) radical scavenging activity in macrophages. Methods : Acanthopanacis Cortex(200 g) was heated at $100^{\circ}C$ with distilled water(2 L) for 4hrs. The extract was filtered and concentrated to 100 ml using a rotary evaporator and was frozen at $-80^{\circ}C$, then was freeze-dried. The RAW 264.7 macrophages were subcultured. In order to evaluate cytotoxicity, MTT assay was performed. Experimental groups were divided into five(control, AC 25, 50, 100 and 200 ${\mu}g/ml$) and we measured cytotoxicity. The concentrations of NO were preprocessed by Griess assay. The RAW 264.7 macrophages was pretreated by 10 ${\mu}g/ml$ LPS and experimental groups were divided into five and we measured NO production. The concentrations of $PGE_2$ were measured by enzyme immunoassay. The RAW 264.7 macrophages was pretreated by 10 ${\mu}g/ml$ LPS. Experimental groups were divided into five and we measured $PGE_2$ production. Antioxidant activity was measured by the DPPH method. experimental groups were divided into four(AC 25, 50, 100 and 200 ${\mu}g/ml$) and we measured DPPH radical scavenging activity. Results : 1. Viability of RAW 264.7 macrophages did not significantly decrease in 25, 50 and 100 ${\mu}g/ml$ Acanthopanacis Cortex hot aqueous extract compared to control group. 2. NO production in LPS-stimulated RAW 264.7 macrophages significantly inhibited in 100, 200 ${\mu}g/ml$ Acanthopanacis Cortex hot aqueous extract compared to control group. 3. $PGE_2$ production in LPS-stimulated RAW 264.7 macrophages significantly inhibited in 100, 200 ${\mu}g/ml$ Acanthopanacis Cortex hot aqueous extract compared to control group. 4. DPPH radical scavenging capability of Acanthopanacis Cortex hot aqueous extract in RAW 264.7 macrophages had the high level in 100, 200 ${\mu}g/ml$. Conclusion : According to the results, Acanthopanacis Cortexx hot aqueous extract has ability to suppress NO, $PGE_2$ production and improve DPPH free radical scavenging activity. So Acanthopanacis Cortex hot aqueous extract may have an anti-inflammation effect and antioxidant activity.

• Food Science and Preservation
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• v.22 no.4
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• pp.567-576
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• 2015

The purpose of this study was to evaluate the functionality of ethanol extract of Aster scaber by analyzing anti-oxidant components and anti-oxidant activities, which was grown in wild and culture field. The yields of Aster scaber ethanol extracts were high after blanching treatment. The polyphenol content of dried Aster scaber grown in wild was 35.59 mg/g, which was higher than that of Aster scaber grown in culture field. The electron donating ability in all Aster scaber extracts were increased with increase in extract concentration, and the electron donating ability was the highest in extracts of the dried Aster scaber after blanching. The SOD-like activity of Aster scaber was the highest in its extract grown in wild field. In addition, the SOD-like activities of extracts of the dired Aster scaber after blanching were highest among the extracts of cultivated Aster scaber. The nitrite scavenging ability of extracts was increased at pH 1.2, and those was the highest in wild fresh Aster scaber. The inhibition effects on xanthine oxidase and tyrosinase were increased with increase in extract concentration, and the inhibition effects of extracts of Aster scaber in wild field were higher than those grown in culture field. Therefore, the consumption of Aster scaber would provide beneficiary effects due to its antioxidant activities and prevention of aging. The development of various processed food using Aster scaber will promote the consumption and its values.

• Journal of Life Science
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• v.32 no.2
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• pp.155-160
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• 2022

Kenaf (Hibiscus cannabinus L.), one of the four major fiber crops, is attracting attention for its efficient CO₂-absorbing ability and versatility for producing daily supplies, including textiles. In Korea, a new cultivar 'Jangdae' was established in 2013. The ease of cultivation and seed gathering of 'Jangdae' has led to its nationwide cultivation. However, evaluation of the bioactivities of the different parts of kenaf, and especially the 'Jangdae' cultivar, remains rudimentary. In this study, the antithrombosis and antioxidant activities of extracts prepared from different parts of the 'Jangdae' cultivar were evaluated by determining their effects on blood clot formation. Extracts prepared from seeds (HC-SD), seedpods (HC-SP), leaves (HC-L), stems (HC-S), and roots (HC-R) of the 'Jangdae' cultivar strongly inhibited blood clot formation. In particular, the HC-SD, HC-SP, and HC-S extracts showed strong inhibition against the coagulation factors prothrombin, and thrombin. The HC-SP extract showed strong antioxidant activities, such as scavenging ability against DPPH anion, ABTS cation, nitrite, and reducing power. Since blood clot formation is closely related to oxidative stress, the HC-SP extract could be developed as a novel anticoagulation and antioxidant resource. This is the first report of the antithrombosis activities of different parts of H. cannabinus L. cv. 'Jangdae'.

• Journal of Oriental Neuropsychiatry
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• v.20 no.3
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• pp.205-216
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• 2009

Objectives : To establish the fundaments for EBM of Traditional Korean Medicine, the papers on Guibi-tang(Guipitang) which were frequently used in medical institutions of Traditional Korean Medicine were analyzed through researching domestic and international literatures. Methods : The papers were classified by the year of publishment, by experimental methods, by laboratory animals used in biological experiment and by the kinds of studies on biological efficacy. Results : Of total 39 papers were registered in domestic journals. Since 1980, publishments of papers have continuously increased. The papers on biological studies were 34 volumes, clinical studies were 5 volumes. Biological studies mainly showed the effects of anti-stress, anti-oxidant, hemostasis, anti-osteoporosis, gastroprotection, reproductive ability, brain cell activity, radioprotection. And clinical studies showed improvements of fearful throbbing, memory and orientation, insomnia, vericose vein, schizophrenia. Conclusions : Guibi-tang(Guipitang) could be used to fortify the spleen, nourish the heart and then control the blood. However biological studies need to be conducted in accordance with clinical study and further clinical studies on randomized controlled trials should be proceeded.

• Herbal Formula Science
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• v.23 no.2
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• pp.189-198
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• 2015

Objectives : Sparganii Rhizoma is frequently used in traditional herbal medicine for treatment of blood stasis, amenorrhea and functional dyspepsia and has been reported to exhibit anti-oxidant, anti-proliferation and anti-angiogenesis peoperties. In this study, we investigated the cytoprotective effect and underlying mechanism of Sparganii Rhizoma water extract (SRE) against oxidative stress-induced mitochondrial dysfunction and apoptosis in hepatocyte. Methods : To determine the effects of SRE on oxidative stress, we induced synergistic cytotoxicity by co-treatment of arachidonic acid (AA) and iron in the HepG2 cell, a human derived hepatocyte cell line. Results : Treatment of SRE increased relative cell viability and altered the expression levels of apoptosis-related proteins such as Bcl-xL, Bcl-2 and procaspase-3. And SRE also inhibited the mitochondrial dysfunction and excessive reactive oxygen species production induced by AA+iron. In addition, SRE activated of AMP-activated protein kinase (AMPK), a potential target for cytoprotection, by increasing the phosphorylation of AMPKα at Thr-172. Morever, SRE increased phosphorylation of acetyl-CoA carboxylase, a direct downstream target of AMPK. Conclusion : These results indicated that SRE has the ability to protect against oxidative stress-induced hepatocyte damage, which may be mediated with AMPK pathway.