A field experiment was conducted to assess the effect of a soil fumigant (dimethyldisulfide, DMDS) and ... Southern root-knot nematode (SRKN, Meloidogyne incognita) is known to be responsible for annual economic ... DMDS effectively reduced second-stage SRKN juvenile density with 91% control efficacy, while FL showed
methyl disulfide, 5-methyl methylthiosulphonate, dimethyldisulfide등의 황화합물로 구성된 복합물질로 확인되었다. ... Major compounds were propenyl methyl disulfide, S-methyl methylthiosulphonate and dimethyldisulfide. ... 부추의 항균활성 물질 분리를 위하여 ultrafiltration, liquid-liquid extraction, TLC, HPLC 순으로 정제하였다.
compounds and after 7 days several sulfur compounds, dimethyldisulfide, methyl 2-propenyl disulfide ... 김치를 제조하여 20oC에서 발효시켰을 때, 초기 2일째는 dimethyl sulfide와 carbon disulfide가 생성되었고, 7일이 경과하였을 때, dimethyldisulfide ... , methyl 2-propenyl disulfide, allyl methyl sulfide, and di-2-propenyl disulfide의 황화합물이 주된 향기성분으로 검출되었다
disulfide결합으로 갈 수 있는 것으로 생각되어진다. ... 알코올의 보호반응의 NMR sheet에서 dimethyl기에 수소가 6개가 있어서 적분값이 6이 나와야 하지만 5가 나온 걸로 보아 수소하나가 뭔가 다른 것으로 치환되어 있을 것으로 ... Michael반응에서, disulfide로 추정되는 spot이 나와서 컬럼을 통해 분리했지만 또 disulfide로 추정되는 spot이 있는 것으로 보아 반응마다의 물질들이 그냥 냅둬도
In this study, hydrogen sulfide, methanthiol, 1-butanol, carbon disulfide, dimethyl sulfide, dimethyl ... disulfide, S-methyl thiobutyrate, dimethyl trisulfide, geosmin were identified as MVOCs. ... Among them, identified main odor active compounds were dimethyl disulfie and dimethyl trisulfide which
During 30 minutes in the photocatalytic reaction, the concentration of methyl mercaptan, dimethyldisulfide ... disulfide→SO2→H2SO4. ... decomposition of methyl mercaptan followed pseudo first order and its reaction coefficient was 0.05min-1
또 다른 주요 황화합물은 methyl 2-propenyl disulfide, dimethyldisulfide, methyl 1-propenyl disulfide과 methyl 2- ... Also other sulfur-containing compounds such as methyl 2-propenyl disulfide, dimethyldisulfide, methyl ... 1-propenyl disulfide and methyl 2-propenyl trisulfide were contained in both tissues.
, dimethyl sulfide, and dimethyldisulfide) in ppbv level. ... Semi-automatic cryogenic-preconcentrator is constructed with time controlling function in preconcentration ... GC-FPD and cryogenic-preconcentrator were to analyze gaseous sulfur compounds (hydrogen sulfide, methanethiol
The major VOCs contributing to desirable sensory properties of kimchi were likely dimethyldisulfide ... including ethanol generally decreased with addition of higher amounts of SCS, whereas that of diallyl disulfide ... The effects of stevioside-containing sweetener (SCS) on kimchi quality were evaluated by investigating
UV-vis spectrophotometer for ammonia and Hydrogen sulfide, Methyl mercaptan, Dimethyl sulfide, Dimethyl ... disulfide were measured using GC/PFPD. ... The average dilution threshold of odor was 923 at grit-chamber and 1,267 at night soil treatment facility
disulfide, diallyl disulfide, methyl allyl trisulfide, methyl 2-propenyldisulfide, dipropenyldisulfide ... sulfides for Cheonggukjang, and for Kimchi were sulfur containing components such as methyl allylsulfide, dimethyl ... Off-flavor in foods and in raw materials is quite concerning, as it could signify deeper-rooted problems
sulfide, dimethyldisulfide, trimethyl amine, stylene, toluene, xylene and methyl ethyl ketone whereas ... which were detected in at least one pig building were ammonia, hydrogen sulfide, methyl mercaptan, dimethyl ... coefficients of 22 odorous compounds, which are regulated by the domestic act, emitted from pig buildings by on-site
On the other hand, the results of dimethyl sulfide, dimethyldisulfide and methyl mercaptan were not ... and Shi-Wha Industrial Complex in Gyeonggi Province. ... number of emission points (stack and process) and boundary areas of 10 chemical industries in the Ban-Woll
PCO efficiency for DMS(Dimethy Sulfide) and DMDS(DimethylDisulfide) were relatively lower than that ... 3</sub> and CH3SH, this results indicate that DMS and DMDS removal process were effected by by-products
disulfide (DMDS). ... evaporator is often contaminated with high concentrations of odorous compounds such as ammonia and dimethyl ... Therefore, the wet-type non-thermal plasma system is expected alleviate to effectively abate the odor
For dimethyl sulfide, dimethyldisulfide, and isovaleraldehyde, the higher concentrations than those ... The proposed ammonia concentrations for the regulatory standard in the semi-industrial and industrial ... The proposed regulatory standards of dilution factor in semi-industrial and industrial area were 25 and
However, based on the effect of DimethylDisulfide (DMDS) which is the reaction product of MT partial ... It has been reported as the main malodorous compounds of odor problems found from foot-and-mouth disease ... This study on the removal of MT using the pallet-type activated carbon fiber (ACF) was carried out to