Journal•ISSN: 1738-2203
Journal of The Korean Society for Applied Biological Chemistry
Springer Nature
About: Journal of The Korean Society for Applied Biological Chemistry is an academic journal. The journal publishes majorly in the area(s): Gene & Fermentation. Over the lifetime, 1016 publications have been published receiving 8773 citations.
Topics: Gene, Fermentation, Apoptosis, DPPH, Mutant
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TL;DR: Results imply that I. aff.
Abstract: Fucoxanthin, a main marine carotenoid, in five species of fucoxanthin-containing microalgae, was quantified by high-performance liquid chromatography. Among the studied species, Isochrysis aff. galbana contained the highest amount of fucoxanthin (18.23 mg/g dried sample). This microalga showed good fucoxanthin extraction efficiency under the tested solvents (methanol, ethanol, acetone, and ethyl acetate), with the exception of n-hexane. In addition, most fucoxanthin (∼95%) could be extracted by a single extraction in ethanol within 5 min, and only 15% degradation of fucoxanthin was detected during ethanol extraction for 24 h. The two-phase solvent system of n-hexaneethanol-water with a volume ratio of 10:9:1 was determined to be the best system for the separation of fucoxanthin and lipids from extracts of I. aff. galbana. Under these conditions, fucoxanthin was fractionated in the hydroalcohol phase apart from the hexane phase containing lipids. These results imply that I. aff. galbana can be a commercial source for the spontaneous production of valuable fucoxanthins and lipids.
172 citations
TL;DR: This review covers the present scenario on VA usage, occurrence, toxicity, and removal techniques in the aquatic and terrestrial environments.
Abstract: The increasing worldwide usages of Veterinary Antibiotics (VAs) for therapeutic and nontherapeutic are becoming serious issue due to its adverse effects on all living organisms. Release of VAs into the aquatic and terrestrial environments results in antibiotic resistance in bacteria and toxicity to humans, animals, and plants. This review covers the present scenario on VA usage, occurrence, toxicity, and removal techniques.
103 citations
TL;DR: It was demonstrated that CGA and related compounds have not only bacteriostatic effects but also bactericidal effects, which were observed at low pH as well as under thermal stress condition.
Abstract: Chlorogenic acid (CGA) is a natural chemical ester composed of caffeic acid and (-)-quinic acid, and is further metabolized into active compounds in the living body. Here, we aimed to provide fundamental information on the antimicrobial action of CGA and related compounds against the Gram-negative bacterium Escherichia coli IFO 3301. Bacteriostatic effects were assessed by spectrophotometry, and bactericidal effects were determined by enumerating viable cells on MacConkey agar plates. CGA and related compounds exhibited specific antimicrobial activity and corresponding reduction in log survival ratio, in which ferulic, isoferulic, benzoic, and hydroxybenzoic acids exhibited obvious antimicrobial activity against E. coli. In a time-kill assay, it was observed that bactericidal effects were associated with treatment time, temperature, and dose. A reduction in log survival ratio was observed at low pH as well as under thermal stress condition. Thus, we demonstrated that CGA and related compounds have not only bacteriostatic effects but also bactericidal effects.
78 citations
TL;DR: In this paper, the authors illustrate the land applications and environmental risks associated with the use of livestock manure and illustrate the potential for land applications to pollute rivers, soil ecosystems, and underground drinking water.
Abstract: Over the past few decades, livestock production has undergone an industrial revolution, resulting in the large-scale generation of livestock manure. Livestock manure has many beneficial nutrients, which can improve agricultural crop production, and is an organic alternative to chemical fertilizers. Livestock manure requires proper treatment before application to agricultural land, because it contains toxic heavy metals and pathogenic microorganisms. When improperly treated, stored or used, livestock manure can pollute rivers, soil ecosystems, and underground drinking water, thereby affecting all living organisms nearby. In this article, we illustrate the land applications and environmental risks associated with the use of livestock manure.
72 citations
TL;DR: Red-pepper and tomato plants displayed up to 20% increased root, stem, and leaf growth when the pots were simultaneously treated with a combination of auxinAH18 and auxinK11, which was over 20% greater than observed with treatment with either auxin alone.
Abstract: In this study, we invested the synergistic plant promotion ability of red-pepper and tomato by the selected multi-functional PGPR: Bacillus subtilis AH18 and Bacillus licheniformis K11. The both strains of PGPR B. licheniformis K11 and B. subtilis AH18 produced the auxins, antifungal β-glucannase, and siderophores, and were capable of solubilizing insoluble phosphates. The auxins produced by B. subtilis AH18 and B. licheniformis K11 were purified and identified from culture filtrates using PVP column, Sephadex LH-20 column chromatography, HPLC, GC-MS, and 1H-NMR. The purified auxinAH18 was confirmed to have derivatives composed with IAA of MW 175, IBA of MW 203, and IPA of MW 189. The amount ratio of auxinAH18 producing was as follows: IAA:IBA:IPA=1:1.5:2.6. The purified auxinK11 consisted of an IBA of MW 203. B. licheniformis K11 and B. subtilis AH18 stimulated seed germination and root growth of red-pepper, tomato, green onions, and spinach. In particular, red-pepper and tomato plants displayed up to 20% increased root, stem, and leaf growth. When the pots were simultaneously treated with a combination of auxinAH18 and auxinK11, the growth rates of red pepper and tomato plants were over 20% greater than observed with treatment with either auxin alone.
70 citations