• Title/Summary/Keyword: Anti-microbial activities

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Comparison of Biological Activities of Fermented Codonopsis lanceolata and Fresh Codonopsis lanceolata (생더덕과 발효더덕의 유용생리활성 비교)

  • Kim, Seung-Seop;Ha, Ji-Hye;Jeong, Myoung-Hoon;Ahn, Ju-Hee;Yoon, Won-Byung;Park, Sung-Jin;Seong, Dong-Ho;Lee, Hyeon-Yong
    • Korean Journal of Medicinal Crop Science
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    • v.17 no.4
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    • pp.280-285
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    • 2009
  • Both fresh Codonopsis lanceolata and lactic acid bacteria fermented Codonopsis lanceolata were extracted with water at $100^{\circ}C$, and tested for anticancer activity using several human cancer cell lines. The fermented extracts inhibited the growth of hepatocellular carcinoma cells up to 90%, compared to 75% for fresh Codonopsis lanceolata. The extracts of cytotoxicity on human normal lung cells (HEK293) were as low as 15%. Especially, human hepatocellular carcinoma cell were more efficiently inhibited than other cells. This extract also inhibited $\alpha$-glucosidase activity up to 60% at 1.0mg/$m{\ell}$. This fermented extracts showed the inhibition potency on tyrosinase by 25% at 1.0mg/$m{\ell}$. From the results, the fermented Codonopsis lanceolata enhanced several biological activities up to $20{\sim}30%$, compared to those from fresh Codonopsis lanceolata. It implies that fermentation process could be one of useful methods of utilizing low quality Codonopsis lanceolata. Because this process could yield high amounts of biologically active compounds by the help of microbial growth.

Evaluation of Anti-oxidant, Anti-microbial and Anti-thrombosis Activities of Fruit, Seed and Pomace of Schizandra chinensis Baillon (오미자 열매, 씨, 착즙 후 박의 항산화, 항균 및 항혈전 활성 평가)

  • Kim, Mi-Sun;Sung, Hwa-Jung;Park, Jong-Yi;Sohn, Ho-Yong
    • Journal of Life Science
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    • v.27 no.2
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    • pp.131-138
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    • 2017
  • In this study, for the efficient use of the byproduct of the omija (Schizandra chinensis Baillon: SC) processing industry, the ethanol extracts of the fruit (F), seed (S), and pomace (P) of SC were prepared, and their useful bioactivities were evaluated. For F-SC, S-SC, and P-SC, the extraction yields were 28.3%, 22.1%, and 7.2%, respectively, and the polyphenol contents were 8.81, 37.22, and 9.20 mg/g, respectively. The total flavonoid content in P-SC (4.31 mg/g) was 3.5-fold higher than that in F-SC (0.76 mg/g). In an antioxidation activity assay, P-SC showed stronger radical scavenging activities against DPPH anion, ABTS cation, and nitrite and stronger reducing power activities than the other extracts. The calculated concentration required for 50% radical scavenging activity, $RC_{50}s$, of P-SC for DPPH anion, ABTS cation, and nitrite was 226.2, 192.5, and $92.5{\mu}g/ml$, respectively. In an antimicrobial activity assay, F-SC, S-SC, and P-SC showed similarly strong growth inhibitions against Bacillus subtilis and P. vulgaris at a concentration of 0.5 mg/disc. F-SC and P-SC showed 15-fold extended time in thrombin, prothrombin, and activated partial thromboplastin time assays at a concentration of 5 mg/ml. The anticoagulation activity of P-SC (2.5 mg/ml) was comparable to that of aspirin (1.5 mg/ml). Furthermore, F-SC and S-SC showed very good platelet aggregation inhibitory activities. F-SC, S-SC, and P-SC did not show significant hemolysis against human red blood cell up to a concentration of 0.5 mg/ml. These results suggest that S-SC and P-SC, both of which are byproducts of the omija processing industry, show strong potential as novel antioxidant, antimicrobial, and antithrombosis agents.

Chemical Components and Biological Activity of Stauntonia hexaphylla (멀꿀의 화학성분과 생리활성)

  • Park, Yun-Jum;Park, Yong-Seo;Towantakavanit, Korsak;Park, Jae-Ok;Kim, Young-Min;Jung, Kyoo-Jin;Cho, Ja-Yong;Lee, Kyung-Dong;Heo, Buk-Gu
    • Korean Journal of Plant Resources
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    • v.22 no.5
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    • pp.403-411
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    • 2009
  • This study was conducted to gather the basic data on the increase of utilization for the Japanese staunton vine (Stauntonia hexaphylla), native plants which were grown in the southern districts in Korea. We have also determined their partial physical and chemical compositions and their physiological activities. Vitamin C contents in fruit skin was 85.23 mg/100 g, and that in flesh was 61.67 mg/100 g. Total amino acids contents in fruit skin increased much more by 762.72 mg/100 g DW compared to that in flesh by 434.05 mg/100 g DW. Inorganic matter contents were more increased in the fruit skin (108.48 mg/$\ell$) and its main components were K (76.53 mg/$\ell$), Ca (20.20 mg/$\ell$) and Mg (6.22 mg/$\ell$). Total phenol compound and flavonoid contents in 1,000 mg/$\ell$ methanol extracts were 7.3-9.6 mg/$\ell$ and 5.1-6.7 mg/$\ell$. Nitrite radical scavenging activity in 4,000 mg/$\ell$ methanol extracts of fruit skin and flesh for Stauntonia hexaphylla were 79.5% and 77.8%, however, that in seeds was 17.1%. Overall mushroom tyrosinase inhibition activity (% of control) was less than 10.8%. Anti-microbial activities of methanol extracts from the fruit skin against the gram negative and positive microbial strains were not significant in the lower concentration of extracting solution, however, that from flesh and seeds in terms of the inhibition diameter were $8.91{\sim}12.25\;mm$.

Development of Microbial Inoculant Using By-product of Oriental Herbal Medicine (한약재박을 이용한 미생물제제의 개발)

  • Joo, Gil-Jae;Kim, Young-Mog;Woo, Cheol-Joo;Lee, Oh-Seuk;Kim, Joung-Woong;So, Jae-Hyun;Kwak, Yun-Young;Lee, Jong-Jin;Kim, Jin-Ho;Rhee, In-Koo
    • Applied Biological Chemistry
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    • v.48 no.3
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    • pp.201-206
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    • 2005
  • The development of microbial inoculant was conducted using a by-product of oriental herbal medicine. The constituent of the by-product, which was high in organic matter, was 11.3% of crude protein, 5.1% of crude lipid, 49.7% of NDF (neutral detergent fiber), and 33.8% of ADF (acid detergent fiber). Microorganisms isolated from the by-product of oriental herbal medicine were 35 species. Among them, 6 bacterial species, 4 fungal species, 2 actnomycetes species, and 1 yeast species were effective in the utilization of the by-products. The 13 strains screened were tested for the plant growth-promoting effect in soybean seedling. BL-333 strain was found to increase the soybean yield by about 23% as compared with control. The strain BL-333 was identified as Paenibacillus marcerans. P. marcerans BL-333 showed high anti-fungal activities against virulent fungi, especially Fusarium sp. and Collectotrichum sp. Yields of plants which were inoculated with microbial inoculant prepared with P. marcerans BL-333 and by-product of oriental herbal medicine were found to be higher than control by $3{\sim}24%$. The yield was especially promoted in lettuce, radish, chinese cabbage and cucumber plants.

Improvement effect of cooked soybeans on HFD-deteriorated large intestinal health in rat model (쥐 모델에서 고지방사료로 악화된 대장 건강에 대한 콩의 개선 효과)

  • Choi, Jae Ho;Shin, Taekyun;Ryu, Myeong Seon;Yang, Hee-Jong;Jeong, Do-Youn;Unno, Tatsuya
    • Journal of Applied Biological Chemistry
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    • v.64 no.4
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    • pp.383-389
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    • 2021
  • Obesity is associated with impaired intestinal epithelial barrier function, which contribute to host systemic inflammation and metabolic dysfunction. Korean traditional foods, fiber-rich bean products, have been various biological activities in anti-inflammatory responses, but has not reported the large intestinal health. In this study, we investigated the intestinal health promoting effect of cooked soybeans (CSB) on high fat diet (HFD)-induced obesity model. SD rat were fed either a HFD or HFD supplemented with 10.6% CSB (HFD+CSB) for animal experimental period. CSB treatment significantly decreased the HFD-induced weights of body and fat. Also, CSB treatment improved HFD-reduced tight junction components (ZO-1, Claudin-1, and Occludin-1) mRNA expression in large intestine tissue. Additionally, histopathological evaluation showed that CSB treatment attenuated the HFD-increased inflammatory cells infiltration and epithelial damages in large intestine tissue. At the genus level, effects of CSB supplement not yet clear, while dietary effects showed differential abundance of several genera including Lactobacillus, Duncaniella, and Alloprevotella. NMDS analysis showed significant microbial shifts by HFD, while CSB did not shift gut microbiota. CSB increased the abundance of the genera Anaerotignum, Enterococcus, Clostridium sensu stricto, and Escherichia/Shigella by linear discriminant analysis effect size analysis, while reduced the abundance of Longicatena and Ligilactobacillus. These findings indicate that CSB supplement improves HFD-deteriorated large intestinal health by the amelioration of tight junction component, while CSB did not shift gut microbiotas.

Evaluation of the Bioactivity of Polygonium tinctorium Leaf: Potential Clinical Uses (쪽잎의 생리활성 평가)

  • Sung, Hwa-Jung;Choi, Ok-Ja;Park, Jong-Yi;Sohn, Ho-Yong
    • Journal of Life Science
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    • v.29 no.1
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    • pp.52-59
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    • 2019
  • The leave of Polygonum tinctorium (LPT) have been used for centuries as a traditional medicine and as a food ingredient and natural dye. The aim of the current study was to develop high-value added products using LPT. Hot water extract (HWE) and ethanol extract (EE) of LPT were prepared, respectively, and their bioactivity was evaluated. The extraction ratio for the HWE was 27.6%, which was two-fold higher than that of the EE. The contents of total polyphenol in the HWE and total sugar in the EE were 51.2 mg/g and 297.8 mg/g, respectively. The total flavonoid and reducing sugar contents were similar in the extracts, irrespective of the extraction solvent. The HWE did not show antimicrobial activity in a disc-diffusion assay, but the EE showed strong growth inhibition against gram-positive bacteria. The EE exhibited stronger DPPH and ABTS radical scavenging activities and reducing power than those of the HWE. The HWE was particularly effective as a scavenger of nitrite ($RC_{50}$ of $6.0{\mu}g/ml$). In an antithrombosis activity assay, the EE showed significant anticoagulation activity as determined by an extended blood coagulation time (thrombin time, prothrombin time, and activated partial thromboplastin time), in addition to platelet aggregation activity. The HWE also showed platelet aggregation inhibitory activity. This report provides the first evidence of antithrombosis activities of LPT. Our results suggest that LPT has potential as a new antioxidant and antithrombosis agent.

A Literary Study on Bezoar Bovis (우황에 대한 문헌적 고찰)

  • Park, Seong-Kyu;Park, Jae-Seuk;Baik, Seong-Il;Kwon, Ki-Rok
    • Journal of Pharmacopuncture
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    • v.8 no.3
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    • pp.51-55
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    • 2005
  • Objectives: Literary investigation of existing data was conducted to verify effects of Bezoar Bovis and its herbal acupuncture, and determine quality management through component analysis. Results: Following results were obtained through literary investigation. 1. Bezoar Bovis is dried cystic stone from a cattle. Its characteristics are cool, no toxicity, and bitter taste. Known actions are: quells heat and detoxifies Fire Poison, extinguishes internal movement of Liver Wind and stops convulsion, vaporizes phlegm, and opens orifice. It is mainly used for treating tremor, stroke, delirium, sore throat, oral furuncle, boil, and others. 2. Bezoar Bovis is effective for eliminating liver toxicity, protecting against brain damage, and has anti-microbial activities. 3. Bezoar Bovis is mixed with bear gall bladder and deer musk to be used as herbal acupuncture, and this mixture is effective is invigorating liver functions as well as treating arthritis, headache, and etc. 4. Principal components of Bezoar Bovis are bilirubin-type pigments and cholic acids. The amount of bilirubin can be used as a standard to determine the quality of Bezoar Bovis.

국내 자생식물의 유기용매추출물로부터 양파부패균 Penicillium sp. ON-211에 대한 항균활성 검정

  • Ha, Cheol-Gyu;Tae, Eon-Hui;Gang, Seon-Cheol
    • 한국생물공학회:학술대회논문집
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    • 2000.11a
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    • pp.729-732
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    • 2000
  • Antifungal activities of domestic plants were examined to develop natural anti-microbial agents, able to protect onion from spoiling microorganisms during their storage. A fungus was isolated from spoiling onion and identified to Penicillium sp. ON-211, based on the morphological characteristics of conidiophore and conidia. Chloroform extracts of Juniperus chinesis Linnaeus, Juniperus. chi. var. horizontalis, water extract of Thujs orientalis Linnaeus' seed and the n-hexane extract of Juniperus. chi. var. horizontalis N. showed remarkable antifungal activties against this fungus.

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Anti-microbial Effects of Rhizome Extracts of Alpinia officinarum Hance against VRE (vancomycin-resistant enterococci) and Other Pathogenic Microorganisms

  • Lee, Keyong-Ho;Rhee, Ki-Hyeong
    • Natural Product Sciences
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    • v.17 no.2
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    • pp.160-164
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    • 2011
  • The purpose of this investigation was to extract the bioactive agents from Alpinia officinarum Hance. The methanol with ethylacetate extracts alone and combined were examined for their activities against VRE (vancomycin-resistant enterococci) and pathogenic yeast in vitro. The incidence of infections caused by VRE and other pathogenic microorganisms and the importance of using novel synergistic drug combinations has become important. Previously, we reported the antimicrobial effects of the butanol extract from Lonicera japonica and have evaluated combinations of solvent extracts, with a focus on the MeOH and EtOAc extracts from A. officinarum. In the present study, enhanced inhibitory effects were achieved by employing a combination of the two solvent extracts. The MeOH and EtOAc combination was especially effective against four VRE strains: E. faecalis (K-10-22), E. faecaium (K-11-212), E. faecalis (K-10-57) and E. faecalis (K-10-361) with MIC values of 12.5, 12.5, 6.25 and 25 ${\mu}g/ml$, respectively. Thus, the combination was more effective than other antibiotics such as kanamycin, gentamicin or tetracycline against bacteria including E. coli, Staphylococcus aureus, and Micrococcus luteus. In addition, the combination was effective against yeasts such as Candida albicans, Candida tropicalis and Cryptococcus neoformans.

Antimicrobial Activity of Essential Oil against Oral Strain

  • Park, Chungmu;Yoon, Hyunseo
    • International Journal of Clinical Preventive Dentistry
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    • v.14 no.4
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    • pp.216-221
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    • 2018
  • Objective: In this study, we tried to investigate the antimicrobial activity of natural herbaceous plant-derived essential oils against oral disease-causing bacterial strains and establish the scientific evidences to apply them to the dentifrice, mouthwash, and other uses. Methods: We used the disk diffusion method with 23 types of 100% natural essential oils to verify the antimicrobial effect against Streptococcus mutans, Porphyromonas gingivalis, and Lactobacillus rhamnosus. After adhering to the surface of the plate culture medium, $20{\mu}l$ of the essential oil was prepared, and the diameter of the transparent ring was measured after incubation for 24 hours. All the experiments were repeated three times. Results: Among 23 types of oils, 13 were effective against all three strains: myrrh, ginger, basil, carrot seed, tea tree, patchouli, ylang ylang, cypress, lemongrass, cinnamon, peppermint, lavender, and eucalryptus. Seventeen oils were effective against S. mutans, and myrrh, basil, and carrot seed showed high antimicrobial activity. Eighteen oils were effective against P. gingivalis, and tea tree, carrot seed, and cinnamons showed high antimicrobial activity. Sixteen oils were effective against L. rhamnosus, and carrot seed and peppermint cinnamon showed high antimicrobial activity. Conclusion: Consequently, 13 essential oils showed the antimicrobial activity against three bacterial strains, which indicates these essential oils might be used as the effective materials to suppress the growth of oral-disease inducing microorganisms. Moreover, essential oils that have been analyzed activities in this study will be mixed up within the constant range and analyzed their antimicrobial effects to examine the synergistic activity among them.