To investigate the degradation of FB1 in aqueous acetonitrile and corn af-ter γ-ray irradiation, the radiolytic products of FB1 was detected preliminarily. The results showed that γ-ray irradiation could degrade FB1...To investigate the degradation of FB1 in aqueous acetonitrile and corn af-ter γ-ray irradiation, the radiolytic products of FB1 was detected preliminarily. The results showed that γ-ray irradiation could degrade FB1 in aqueous acetonitrile;When the radiation dose was below 9 kGy, the degradation of FB1 in corn was not significant. The degradation rates of FB1 with concentrations of 0.8 mg/ml, 10.0 μg/ml, 1.0 μg/ml and 50 ng/ml after irradiation at 9 kGy were 22.5%, 51.0%, 59.0% and 64.8% respectively; when irradiation dose was increased to 100 kGy, the degrada-tion rate of FB1 with concentration of 0.8 mg/ml was up to 90%, and it was nearly 100% when irradiation dose was increased to 200 kGy. No representative products of FB1 were detected by LC/MS/MS analysis.展开更多
This paper presents the results of studying the frequency dependence of permittivity and dielectric loss of fishbone (Fb) Kutum and polyethylene composites filled with nanoparticles fishbone Kutum and the influence of...This paper presents the results of studying the frequency dependence of permittivity and dielectric loss of fishbone (Fb) Kutum and polyethylene composites filled with nanoparticles fishbone Kutum and the influence of aluminum(Al) nanoparticles with dimensions 80-nm on the dielectric properties of polymer composites. Studies were carried out at the frequency range of 0 - 1 MHz. It was found that the variation of the volume of filler content of fishbone and aluminum nanoparticles might be prepared composite materials with the required dielectric parameters.展开更多
【目的】研究了植物乳杆菌(Lactobacillus plantarum)ZJ8对伏马菌素B1和B2吸附作用与机制。【方法】采用高效液相色谱检测菌体对FB1和FB2的吸附率。【结果】菌株ZJ8对FB1和FB2的吸附率分别为89.9%、95.0%,这种吸附特性与菌体活力无关,...【目的】研究了植物乳杆菌(Lactobacillus plantarum)ZJ8对伏马菌素B1和B2吸附作用与机制。【方法】采用高效液相色谱检测菌体对FB1和FB2的吸附率。【结果】菌株ZJ8对FB1和FB2的吸附率分别为89.9%、95.0%,这种吸附特性与菌体活力无关,且随培养时间延长而增加。菌株ZJ8的吸附率在p H 4时达到最大,分别为96.4%和99.0%。碱性和高温条件下都不利于菌株吸附伏马菌素。经强酸和SDS处理后,菌体对伏马菌素吸附率显著性上升。菌体细胞壁对FB1和FB2的吸附率高达96.8%和100%。植物乳杆菌ZJ8胞壁成分中肽聚糖的吸附率最高,分别为98.4%和100%。【结论】植物乳杆菌ZJ8可以通过吸附作用清除环境中的伏马菌素B1和B2,对吸附起主要作用的是菌体细胞壁上的肽聚糖。展开更多
基金Supported by Agricultural Science and Technology Innovation Fund of Jiangsu Province(CX(12)5014)~~
文摘To investigate the degradation of FB1 in aqueous acetonitrile and corn af-ter γ-ray irradiation, the radiolytic products of FB1 was detected preliminarily. The results showed that γ-ray irradiation could degrade FB1 in aqueous acetonitrile;When the radiation dose was below 9 kGy, the degradation of FB1 in corn was not significant. The degradation rates of FB1 with concentrations of 0.8 mg/ml, 10.0 μg/ml, 1.0 μg/ml and 50 ng/ml after irradiation at 9 kGy were 22.5%, 51.0%, 59.0% and 64.8% respectively; when irradiation dose was increased to 100 kGy, the degrada-tion rate of FB1 with concentration of 0.8 mg/ml was up to 90%, and it was nearly 100% when irradiation dose was increased to 200 kGy. No representative products of FB1 were detected by LC/MS/MS analysis.
文摘This paper presents the results of studying the frequency dependence of permittivity and dielectric loss of fishbone (Fb) Kutum and polyethylene composites filled with nanoparticles fishbone Kutum and the influence of aluminum(Al) nanoparticles with dimensions 80-nm on the dielectric properties of polymer composites. Studies were carried out at the frequency range of 0 - 1 MHz. It was found that the variation of the volume of filler content of fishbone and aluminum nanoparticles might be prepared composite materials with the required dielectric parameters.
文摘【目的】研究了植物乳杆菌(Lactobacillus plantarum)ZJ8对伏马菌素B1和B2吸附作用与机制。【方法】采用高效液相色谱检测菌体对FB1和FB2的吸附率。【结果】菌株ZJ8对FB1和FB2的吸附率分别为89.9%、95.0%,这种吸附特性与菌体活力无关,且随培养时间延长而增加。菌株ZJ8的吸附率在p H 4时达到最大,分别为96.4%和99.0%。碱性和高温条件下都不利于菌株吸附伏马菌素。经强酸和SDS处理后,菌体对伏马菌素吸附率显著性上升。菌体细胞壁对FB1和FB2的吸附率高达96.8%和100%。植物乳杆菌ZJ8胞壁成分中肽聚糖的吸附率最高,分别为98.4%和100%。【结论】植物乳杆菌ZJ8可以通过吸附作用清除环境中的伏马菌素B1和B2,对吸附起主要作用的是菌体细胞壁上的肽聚糖。
