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Pseudomonas sp. EL-G527에 의한 환경친화성 생물계면활성제의 생산최적조건
차미선,임은경,이근희,조순자,손흥주,이상준 한국환경과학회 2002 한국환경과학회지 Vol.11 No.3
A biosurfactant-producing microorganism was isolated from activated sludge by enrichment culture when grown on a minimal salt medium containing n-hexadecane as a sole carbon source. This microorganism was identified as Pseudomonas sp. and it was named Pseudomonas sp. EL-G527. It's optimal culture condition is 2% n-hexadecane, 0.2% NH_4NO_3, 0.3% KH_2PO_4, 0.3% K_2HPO_4, 0.02% MgSO_4·7H_2O, 0.0025% CaCl_2·6H_2O, 0.0015% FeSO_4·7H_2O in 1ℓ distilled water and initial pH 7.0. Cultivation was initiated with a 2% inoculum obtained from starter cultures grown in 30 ㎖ of the same medium in 250 ㎖ flask. They were cultivated at 30 ℃ in reciprocal shaking incubator and the highest biosurfactant production was observed after 4 days.
Gyoung Hee Hong,Zhengyang Li,박진서,Zhenghua Li,Ki Yeong Kim,Chengbin Li,이정호,Mingshi Jin,Galen D. Stucky,Ji Man Kim 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.107 No.-
Highly ordered mesoporous molybdenum dioxide (meso-MoO2) was successfully synthesized by a nanoreplicationmethod using a mesoporous silica template with 3D cubic Ia3d mesostructure. Structuralanalyses using X-ray diffraction, N2 sorption, and electron microscopy indicated that the meso-MoO2material exhibited high surface area (106 m2/g), large pore volume (0.66 cm3/g), and well-defined mesopores. Under the optimized reaction conditions, the meso-MoO2 catalyst showed excellent catalytic performancesfor the acetalization of glycerol with acetone (95.8% of glycerol conversion, and 97.8% ofsolketal selectivity) at 20 C, due to its high surface area with large number of acid sites. During recycling,the meso-MoO2 catalyst exhibited a slight decrease in activity; and after a simple regeneration at 350 C,the catalytic performances could be completely recovered. More importantly, a partial hydrophobic treatmentof the meso-MoO2 catalyst dramatically enhanced the water-tolerance during the catalytic reaction.
Young Su Lee,Hee Ah Lee,Soon Sung Hong,Gyoung Joong E 한국응용곤충학회 2010 한국응용곤충학회 학술대회논문집 Vol.2010 No.10
Although the greater part of Coccinellidae are all pure entomophagous insects (Weber and Lundgren, 2009), many species of phytophagous, mycophagous and polyphagous ladybirds have been reported in worldwide. This study was conducted to investigate the morphological characteristics of mouthparts of mycophagous ladybird, I. koebelei, comparison with aphidophagous species, Propylea japonica (Coccinellidae: Coccidellini), and developmental charicteristics of I. koebelei at different temperature under incubation conditions. Four species of powdery mildews that I. koebelei fed were observed, and their host plants were pear tree, persimmon tree, red pepper and cucumber. The most conspicuous elements of I. koebelei mouthparts is the mandible. The distal incisor region of the mandible of both species is formed by two teeth, giving them a bifid apex. and the terminal teeth spilt near top and the ventral tooth is smaller than the dorsal one. but the ventral tooth of I. koebelei divided into a row of additional teeth was different with P. japonica. Furthermore, while the inner mandibular cutting edge of P. japonica is smooth, that of I. koebelei is covered in minute teeth, forming a comb. These structures are presumed to help I. koebelei rake fungal spores growing on leaf surface. The developmental period and reproduction ability of were significantly different according to temperature conditions when I. koebelei was fed the powdery mildew from cucumber leaves. The optimum temperature for I. koebelei rearing was from 23 to 25℃ that is the similar condition of cucumber powdery mildew occurrence.
( Dong Hee Han ),( In Ho Moh ),( Doo Man Kim ),( Sung Hee Ihm ),( Moon Gi Choi ),( Hyung Joon Yoo ),( Eun Gyoung Hong ) 대한내과학회 2013 The Korean Journal of Internal Medicine Vol.28 No.5
We report the case of a patient who experienced extreme recurrent gestational hyperlipidemia. She was diagnosed with partial lipoprotein lipase (LPL) deficiency but without an associated LPL gene mutation in the presence of the apolipoprotein E3/2 genotype. This is the first reported case of extreme gestational hyperlipidemia with a partial LPL deficiency in the absence of an LPL gene mutation and the apolipoprotein E 3/2 genotype. She was managed with strict dietary control and medicated with omega-3 acid ethyl esters. A patient with extreme hyperlipidemia that is limited to the gestational period should be considered partially LPL-deficient. Extreme instances of hyperlipidemia increase the risk of acute pancreatitis, and the effect of parturition on declining plasma lipid levels can be immediate and dramatic. Therefore, decisions regarding the timing and route of delivery with extreme gestational hyperlipidemia are critical and should be made carefully.