Journal of the Korean Society for Applied Biological Chemistry
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The effect of caffeic acid on the antinociception and mechanisms in mouse
Journal of the Korean Society for Applied Biological Chemistry - Tập 54 - Trang 177-182 - 2011
Antinociceptive profiles of caffeic acid were examined in ICR mice. Caffeic acid administered orally (from 1 to 10 mg/kg) showed an antinociceptive effect in a dose-dependent manner as measured in the acetic acid-induced writhing test. Moreover, the cumulative response time of nociceptive behaviors induced by an intraplantar formalin injection was reduced by caffeic acid treatment during the 2nd p......
Evaluation of a Pyrethrum Emulsion Prepared in Food-acceptable Components in Controlling Green Peach Aphid (Myzus persciae)
Journal of the Korean Society for Applied Biological Chemistry - Tập 52 - Trang 176-179 - 2009
Green peach aphid, Myzus persicae, is one of major pests attacking greenhouse pepper plants in Korea. We examined a pyrethrum emulsion for the control of M. persicae. The emulsion was prepared by blending natural pyrethrum extracts with food-acceptable components. The emulsion produced a clear aqueous solution when diluted in water. Laboratory evaluation showed an average 80% mortality of 2nd-inst......
Degradation of prochloraz by rice bakanae disease pathogen fusarium fujikuroi with differing sensitivity: a Possible explanation for resistance mechanism
Journal of the Korean Society for Applied Biological Chemistry - Tập 53 - Trang 433-439 - 2010
The fungicide prochloraz was subjected to degradation by the pathogen causing rice Bakanae disease, Fusarium fujikuroi, in order to gain an insight into the mechanisms of sensitivity and resistance to the fungicide. Growth-inhibiting assays of pathogens conducted on potato dextrose agar (PDA) plates by a paper-disc agar-diffusion method. Significant growth inhibition of the sensitive strain CF106 ......
Development of a lipase-based time temperature indicator system for monitoring ground beef quality
Journal of the Korean Society for Applied Biological Chemistry - Tập 55 - Trang 535-540 - 2012
A time-temperature indicator (TTI) based on Burkholderia cepacia lipase (BCL) activity was developed for monitoring ground beef quality under dynamic storage conditions. The growth of Pseudomonas spp., the major specific spoilage bacterium in meat, was used as a ground beef spoilage index. Arrhenius and logistic models were used to show temperature dependence of the growth of Pseudomonas spp. in g......
Artocarpus nigrifolius: Cytotoxic and antibacterial constituents
Journal of the Korean Society for Applied Biological Chemistry - Tập 56 - Trang 667-672 - 2013
Six known compounds including α-amyrin 3-acetate (1), β-sitosterol (2), betulinic acid (3), friedelan-3-one (4), artochamin B (5), and 2-C-methyl-d-erythritol 4-O-α-d-glucopyranoside (6) were isolated from the stem barks and leaves of Artocarpus nigrifolius (Moraceae) for the first time. Their structures were identified by spectroscopic methods as well as comparison with literatures. Cytotoxicity ......
Synthesis and Antimicrobial Evaluation of Sulfides, Sulfoxides, and Sulfones
Journal of the Korean Society for Applied Biological Chemistry - Tập 52 - Trang 34-39 - 2009
Hydrogen peroxide, with sodium metavanadate as the catalyst, was used to achieve a highly efficient and selective oxidation of sulfides into sulfoxides and sulfones at room temperature in high yields and short reaction times. All of the sulfides oxidized into sulfoxides and sulfone derivatives were assayed for their in vitro antibacterial activities against Staphylococcus aureus, Bacillus cereus, ......
Control Efficacy of Bordeaux Mixture against Powdery Mildew on Omija (Schizandra chinensis)
Journal of the Korean Society for Applied Biological Chemistry - Tập 52 - Trang 58-62 - 2009
This study was carried out to investigate disease control efficacy of Bordeaux mixture against powdery mildew on omija (Schizandra chinensis Baillon) medicinal plants and the deposit of Cu and Zn in soils and fruits. When the Bordeaux mixture was foliar applied by different modes, it showed potent control efficacy against powdery mildew disease on omija medicinal plants, with control values betwee......
Immunological activities of cationic methylan derivatives
Journal of the Korean Society for Applied Biological Chemistry - Tập 57 - Trang 319-321 - 2014
Methylan polysaccharide was aminated to add dialkylaminoethyl and free amino groups at hydroxyl sites in the methylan backbone, and these derivatives were quaternized to produce pH-independent cationic polyelectrolytes. The immunological activities of the resulting methylan derivatives were investigated. Diethylaminoethyl (DEAE)-methylan derivatives inhibited the classical pathway of the complemen......
Identification and PEP inhibitory activity of acetophenone glucosides from the clove buds (Syzygium aromaticum)
Journal of the Korean Society for Applied Biological Chemistry - Tập 53 - Trang 847-851 - 2010
Two new acetophenone glucosides, 2,6-dihydroxy-4-methoxyacetophenone 3-C-β-D-glucoside (1) and 2,6-dihydroxy-4-methoxyacetophenone 3-C-β-D-(6′-O-galloyl)glucoside (2), together with three known compounds, eugenin (3), 8-C-glucosylnoreugenin (4), and gallic acid (5) were isolated from the EtOAc soluble fraction of the MeOH extract of clove buds (Syzygium aromaticum). Of these, compound 2 showed sig......
Photo-protective effect of Polysiphonia morrowii Harvey against ultraviolet B radiation-induced keratinocyte damage
Journal of the Korean Society for Applied Biological Chemistry - Tập 55 - Trang 149-158 - 2012
Photo-protective properties of Polysiphonia morrowii ethanol extract (PME) against ultraviolet B (UVB) radiation-induced cellular damage were investigated in human HaCaT keratinocytes. PME exhibited scavenging activity against 1,1-diphenyl-2-picrylhydrazyl radical and intracellular reactive oxygen species induced by either hydrogen peroxide (H2O2) or UVB radiation. In addition, PME scavenged super......
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