Sambucus sieboldiana var. miquelii (Nakai) Hara is distributed in Korea, China, and Japan, and has been used as an anti-rheumatic in folk medicine in oriental countries. The present study aims to investigate the potential use of this species in health functional foods, cosmetics, and food preservatives. Methanol extracts of leaves and branches from this plant were prepared to quantitatively analyze the total phenol and flavonoid contents, and to investigate the antioxidative and enzyme inhibitory activities, and the inhibition of nitric oxide (NO) production activity. The results showed that the total polyphenol and flavonoid contents of the crude extract were 1.52±0.1 mg/g and 1.73±0.1 mg/g, respectively. S. sieboldiana polyphenols exhibited potent scavenging activity shown by 2, 2'-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay and 2, 2-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical cation assay. The crude extract also exhibited significant α-glucosidase and tyrosinase inhibitory activity with IC50 values of 183.5 ㎍/ml and 323.9 ㎍/ ml, respectively. Additionally, the crude extract exhibited strong anti-inflammatory activity determined through the nitric oxide inhibition assay in a dose-dependent manner with an IC50 value of 36.7 ㎍/ml and no cytotoxic effect on the macrophages. Therefore, we demonstrated that the leaves and branches of S. sieboldiana extract possess antioxidant, anti-diabetic, depigmentation potential, and NO production inhibitory activities. According to recent research, S. sieboldiana has great potential as a source of the bioactive compound which could be used as food, cosmetics, and pharmaceutical agents.
Kim, Eun-Hee;Jang, Young-Ah;Kim, Sol-Bi;Kim, Han-Hyuk;Lee, Jin-Tae
Journal of Applied Biological Chemistry
/
v.61
no.3
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pp.297-304
/
2018
Coptis chinensis is used in oriental medicine for soothing, anti-inflammation, antimicrobial and antipyretic properties, and its main ingredient berberine is known to have strong antibacterial activity. In this study, we investigated the anti-microbial effect of hot water extract of Coptis chinensis (CW) on skin related microorganism and the airborne microbe, the antifungal effects of fungi, which are frequently detected in residential environments. CW showed antibacterial effect against Propionibacterium acnes, Staphylococcus aureus and Staphylococcus epidermidis, against the airborne microbe, which was collected in four different places. At the concentration of 100 mg/mL, the antimicrobial activity continued for 42 days, showed heat stability without change in the antimicrobial activity even after heat treatment. The MIC and MBC of CW against S. aureus was 0.03, 0.05 mg/mL, against S. epidermidis was 0.50, 0.75 mg/mL and against P. acne was 0.10, 0.15 mg/mL. As a result of measuring the MIC of four kinds of fungi with high detection frequency in the surrounding environment, Gliocladium virens was 65 mg/mL by determined as MIC which can inhibit one hundred percent of mycelial growth. The concentration 90 mg/mL was determined as MIC against Aureobasidium pullulans and 100 mg/mL against Penicilium pinophilum and Chaetomium globosum. CW was considered a safe extract that showed no irritation even in the ocular mucous membrane irritation evaluation test, a patch test. Therefore, these results suggest that Coptis chinensis has antimicrobial, antifungal and safety on human body and can be applied to the development of materials for cosmetic and residential environment industries.
Kim, Yon-Suk;Lee, Seung-Jae;Hwang, Jin-Woo;Kim, Ee-Hwa;Park, Pyo-Jam;Jeong, Jae-Hyun
Journal of the Korean Society of Food Science and Nutrition
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v.40
no.12
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pp.1642-1647
/
2011
The free radical scavenging activities of extracts from Ligustrum ovalifolium H. leaves (LOH) as well as various antioxidant activities such as ferric reducing antioxidant power (FRAP), 2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging activity, reducing power and lipid peroxidation inhibition were evaluated by electron spin resonance (ESR). The total polyphenol and flavonoid contents of the water and ethanolic extracts from LOH were $105.5{\pm}1.31$ and $102.1{\pm}1.82$ mg gallic acid equivalent/g extract, respectively, and $84{\pm}1.72$ and $82.8{\pm}1.65$ mg catechin equivalent/g extract. In addition, $IC_{50}$ values for the 1,1-diphenyl-2-picryldrazyl (DPPH), alkyl, and hydroxyl radical scavenging activities of the water and ethanolic extracts were $0.021{\pm}0.002$ and $0.010{\pm}0.003$ mg/mL, $0.011{\pm}0.003$ and $0.012{\pm}0.002$ mg/mL, and $0.395{\pm}0.002$ and $0.443{\pm}0.002$ mg/mL, respectively. The ABTS radical scavenging activities of the water and ethanolic extracts from LOH and BHT were $0.073{\pm}0.12$, $0.130{\pm}0.06$ and $1.461{\pm}0.02$ mM Trolox equivalent/mg extract, respectively. The FRAP values of the extracts from LOH were higher than those of BHT, which was used as a positive control. The LOH extracts showed strong inhibitory effects on lipid peroxidation as measured by ferric thiocyanate (FTC) and thiobarbituric acid (TBA) assay compared to that of ${\alpha}$-tocopherol. Using MTT assay on human liver cells (Chang), extracts from LOH showed no toxicity at a concentration of 0.5 mg/mL. These results indicate that the LOH extracts possessed antioxidant activity.
Kim Geum-Soog;Kim Dong-Hwi;Jeong Mi-Ran;Jang In-Bok;Shim Kang-Bo;Kang Chul-Hwan;Lee Seung-Eun;Seong Nak-Sul;Song Kyung-Sik
KOREAN JOURNAL OF CROP SCIENCE
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v.49
no.6
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pp.496-502
/
2004
The development of sesame varieties which contain high contents of lignan compounds has been progressed in Korea. This study was carried out to get the basic information for the breeding of high quality sesame varieties and the development of health functional food sources using lignan compounds from sesame. The contents of sesamin and sesamolin were $4.08\pm1.74$ and $2.47\pm0.68mg/g$, respectively, from sesame cultivated in 2002 and those were $4.08\pm1.51$ and $2.48\pm0.69mg/g$, respectively, from sesame cultivated in 2003. The content of sesamine was high in the order of Danbaek (6.22 mg/g), Seongbun (5.94 mg/g), Namda (5.83 mg/g), and Naman (5.59 mg/g) producted in 2002 and Seongbun (6.27 mg/g), Dasak (5.53 mg/g), Danbaek (5.50 mg/g), chinbaek (5.45 mg/g), and Seodun (5.41 mg/g) producted in 2003. The content of sesmoline was high in the order of Hwangbaek (3.27 mg/g), Seongbun (3.26 mg/g), Annam (3.22 mg/g), Hanseom (3.17 mg/g), and Danbaek (3.16 mg/g) producted in 2002, and Seongbun (3.21 mg/g), Seodun (3.14 mg/g), Pungan (3.10 mg/g), Naman (3.09 mg/g), and Danbaek (3.04 mg/g) producted in 2003. The contents of sesamin and sesamolin of Yangbaek, which has used as a standard variety for sesame breeding, were relatively lower than in any other varieties. These resluts suggest that Yangbaek is not the proper variety as a standard variety for development of high quality sesame. In conclusion, proper good variety as a standard variety for sesame breeding must be determined after careful consideration on the major quality factors including crude oil and lignan compounds as well as agricultural characteristics to develop high quality sesame varieties containing high contents of lignan compounds.
The purpose of this study was to investigate the effect of Sea Tangle supplementation and exercise training on blood glucose and lipid profile in rats. Twenty seven, 4-week old male Sprague-Dawley rats were divided into the control group (C, n=9), sea tangle group (D, n=9) and sea tangle+exercise group (D+T, n=9). Exercise training was performed 5 days a week using a treadmill running program for 6 weeks (5 m/min, 0% grade, 30 min). There was no difference in blood glucose (C: $175.9{\pm}47.5$, D: $173.9{\pm}34.0$, D+T: $165.0{\pm}38.0\;mg/dl$) and triglyceride (C: $251.1{\pm}91.8$, D: $215.0{\pm}90.0$, D+T: $200.0{\pm}89.3\;mg/dl$) among the groups. Total cholesterol value of the D+T group ($81.8{\pm}11.2\;mg/dl$) was significantly lower than that of the C ($103.0{\pm}13.5\;mg/dl$) and D ($102.1{\pm}14.5\;mg/dl$) groups. High density lipoprotein cholesterol (HDL-C) was significantly high in the D+T ($40.9{\pm}9.7\;mg/dl$) group compared with the C ($32.6{\pm}3.8\;mg/dl$) group and D ($31.7{\pm}7.3\;mg/dl$) group. The value of low density lipoprotein cholesterol (LDL-C) for the D ($98.0{\pm}41.0\;mg/dl$) group was statistically lower than the C($114.5{\pm}41.8\;mg/dl$) group, and higher than the D+T ($91.2{\pm}41.7\;mg/dl$) group. In conclusion, sea tangle injection and exercise had a positive effect on blood lipid profiles.
The objective of the present study was to investigate the inhibitory effect of physiologically pulsatile pattern of testosterone(T) on luteinizing hormone(LH) in wethers. To do this, 3 separate experiments were conducted. Infusion rates and patterns needed to produce normal T secretory profiles found in intact rams were established in Experiment 1, the time-course of the suppressive effect of T on circulating LH concentrations was determined in Experiment 2, and the effectiveness of a pulsatile versus a constant pattern of T to suppress LH secretion in wethers was compared in Experiment 3. In Experiment 1, three different doses(25, 50 or $100{\mu}g$) of T were injected intravenously to animals to do pharmacokinetic analysis of T. Elimination rate constant, volume of distribution, and total body clearance of T averaged $0.18min^{-1}$, 0.531/kg BW, and 0.091/min/ kg BW, respectively. In Experiment 2, three different doses(192,384, or $768{\mu}g/kg/24h$) of T were infused at 4h intervals for 3 days into animals to evaluate the time course of the inhibitory effect of T on mean LH concentration. As duration of T infusion increased, mean LH concentrations gradually reduced. Mean LH concentrations were significantly lower at day 2 or day 3 than at day 0. However, mean LH concentrations did not differ between day 0 and day 1 or between day 2 and day 3. In Experiment 3, animals were subjected to two different intravenous infusion regimens for 3 days: constant T($768{\mu}g/kg/24h$) and pulsatile(one pulse every 4h) T($768{\mu}g/kg24h$). Blood samples were collected at 10-min intervals for 4h both prior to infusion and during the last 4h of the infusion. Mean LH was more suppressed(p=0.045) by constant T than by pulsatile T. LH pulse amplitude was not affected by constant T or pulsatile T. LH interpulse interval was increased more(p=0.034) by constant T than pulsatile T.
Kim, Dong-Chan;Kim, Nam Doo;Kim, Sung In;Jang, Chul-Soo;Kweon, Chang Oh;Kim, Byung Weon;Ryu, Jae-Ki;Kim, Hyun-Kyung;Lee, Suk Jun;Lee, Seungho;Kim, Dongjin
Journal of Life Science
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v.23
no.5
/
pp.609-615
/
2013
Glyceollin I has gained attention as a useful therapy for various dermatological diseases. However, the binding property of glyceollin I to the mammalian adenylyl cyclase (hereafter mAC), a critical target enzyme for the down-regulation of skin melanogenesis, has not been fully explored. To clarify the action mechanism between glyceollin I and mAC, we first investigated the molecular docking property of glyceollin I to mAC and compared with that of SQ22,536, a well-known mAC inhibitor, to mAC. Glyceollin I showed superiority by forming three hydrogen bonds with Asp 1018, Trp 1020, and Asn 1025, which exist in the catalytic site of mAC. However, SQ22,536 formed only two hydrogen bonds with Asp 1018 and Asn 1025. Secondly, we confirmed that glyceollin I effectively inhibits the formation of forskolin-induced cAMP and the phosphorylation of PKA from a cell-based assay. Long term treatment with glyceollin I had little effect on the cell viability. The findings of the present study also suggest that glyceollin I may be extended to be used as an effective inhibitor of hyperpigmentation.
This study was conducted to examine the chemical characteristics, antibacterial activity and dyeability of several juices made from Persimmon cv. 'Gyeongsanbanshi'. Young fruits of persimmon were harvested at 1st August, 2006. Fruit juice was extracted soon after harvesting, some of them were stored at $4{\sim}6^{\circ}C$ for 6 months or fermented at room temperature for 6 months. $L^*$ values of vinegar was 43.5 higher than those of fresh juice and fermented liquor. Inorganic matter contents in fresh juice, fermented liquor and vinegar were higher in the order of K ($1696{\sim}2880\;mg$/100 g), Ca ($166.7{\sim}417.9\;mg$/100 g), Mg ($203.9{\sim}214.4\;mg$/100 g), P ($37.9{\sim}109.8\;mg$/100 g), Na ($13.2{\sim}23.3\;mg$/100 g) and Fe ($8.4{\sim}14.2\;mg$/100 g). Cotton fabrics dyed with the fermented liquor and vinegar had the largest inhibitory zone against the gram-positive microorganisms with range of $16.0{\sim}35.0\;mm$. Cotton fabrics dyed with the fresh juice showed $9.0{\sim}9.5\;mm$ inhibitory zone against the gram-negative microorganisms, $15.0{\sim}21.0\;mm$ with the juice stored at $4{\sim}6^{\circ}C$ for 6 months, $22.0{\sim}23.0\;mm$ with the fermented liquor and $9.0{\sim}35.0\;mm$ with vinegar. The hue of cotton fabrics dyed with the fermented liquor had a YR levels, and antibacterial activity of them were 78.5%.
Liriope platyphylla has been used in oriental medicine as an effective medical plant to improve symptoms of cough, sputum production, neurodegenerative disorders, obesity and diabetes for long time. In order to investigate the effects of novel extracts on nerve growth factors (NGF)-stimulated neuritic outgrowth, the alteration of NGF expression and NGF receptor signaling pathway were detected in neuroblastoma cells and C57BL/6 mice. Of a total of 13 novel extracts, 4 extracts (LP-E, LP-M, LP-M50, LP2E17PJ) showed high viability on MTT assay. Also, all of these extracts induced NGF secretion and NGF mRNA expression in neuroblastoma cells. However, the NGF-induced neuritic outgrowth from PC12 cells was only stimulated by LP-E, LP-M and LP-M50. Furthermore, we selected LP-M as a best candidate, based on method and amounts of extraction, in order to verify its effect in mice. C57BL/6 mice were treated with 50 mg/kg of LP-M for 2 weeks and the effects on NGF regulation were analyzed with various methods. The expression of NGF mRNA was significantly increased in LP-M treated mice compared to vehicle treated mice. Also, the signaling pathway of p75NTR was inhibited in the cortex by LP-M treatment, with no change in the hippocampus of brain. However, the signaling pathway of TrkA was dramatically activated in only hippocampus via LP-M treatment. Therefore, these results suggest that the novel four extracts of L. platyphylla may contribute to the regulation of NGF expression and secretion in neuronal cells. LP-M was especially considered to be an excellent candidate for a neurodegenerative disease-therapeutic drug.
Kim, Dong-Kwan;Son, Dong-Mo;Choi, Jin-Gyung;Shin, Hae-Ryong;Choi, Kyeong-Ju;Lee, Jeongran;Lee, Kyung-Dong;Rim, Yo-Sup
KOREAN JOURNAL OF CROP SCIENCE
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v.58
no.1
/
pp.1-7
/
2013
The purpose of this study was to provide basic information for breeding cowpeas (Vigna unguiculata L.) by investigating the crop characteristics of 245 accessions of cowpea collected in Korea and abroad. All specimens flowered within 41 to 50 days (51.5%) or 51 to 60 days (43.7%) of sowing and matured 21 to 30 days (53.9%) or 31 to 40 days (23.7%) from flowering. Thus, the total time from sowing to maturity was either 71 to 80 days (26.9%) or 81 to 90 days (23.4%) for all specimens. The accessions were classified into indeterminate type (72.7%), intermediate type (25.7%) and determinate type (1.6%) based on growth; prostrate type (78.8%) and erect type (21.2%) based on plant type; heart shape (98.4%) and lanceolate (1.6%) based on leaflet shape; and purple (85.2%), white (13.6%) and light green (1.2%) based on corolla color. The accessions were classified into brown (54.7%) and yellowish brown (37.6%) based on color at pod maturity; and downward (90.6%), middle (5.7%) and standing upright (3.7%) based on pod setting position. Seed coat color varied as 25.3% were brown, 23.3% were black, and 20.8% were white. Seed shape also varied as 66.9% were egg-shaped, 24.9% were rectangular and 8.2% were kidney-shaped. Pod lengths ranged from 10.1-20.0 cm and from 20.1-30.0 cm in 89.0% and 8.6% of specimens, respectively. There were 12.1-15.0, 9.1-12.0, and 15.1-18.0 seeds per pod in 62.0%, 25.7% and 9.1% of specimens, respectively. The weight of one hundred seeds ranged from 15.1-20.0 g (37.6%) and 10.1-15.0 g (28.6%). Seed yields per plant were 100.1-200.0 g (52.7%), less than 100 g (22.9%), and 200.1-300.0 g (15.9%). The starch content in the seeds of the seven selected resources ranged from 44.1 to 57.0% while the protein content ranged from 23.3 to 27.5% with significant differences. The sucrose content ranged from 1.46 to 2.03%, also with significant differences.
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