以玉米和赭曲霉毒素A纯品为研究对象,研究了电子束辐照对玉米品质的影响,探讨了辐照对赭曲霉毒素A的降解效果。结果表明,电子束辐照对玉米的常规营养成分、氨基酸含量及其组成几乎没有影响,但5kGy剂量的电子束辐照对玉米脂肪酸组成及脂...以玉米和赭曲霉毒素A纯品为研究对象,研究了电子束辐照对玉米品质的影响,探讨了辐照对赭曲霉毒素A的降解效果。结果表明,电子束辐照对玉米的常规营养成分、氨基酸含量及其组成几乎没有影响,但5kGy剂量的电子束辐照对玉米脂肪酸组成及脂肪酸值有显著影响。赭曲霉毒素A的降解率随着辐照剂量的增加而提高,在3kGy的辐照剂量下,初始质量浓度为310.0μg/L的赭曲霉毒素A降解率为49.55%,当辐照剂量增大到5 k Gy时,降解率达到93.19%,此后降解率随辐照剂量增加的趋势变缓。因此,3~5 k Gy剂量的电子束辐照不会降低玉米品质,并能够降解赭曲霉毒素A。展开更多
In this paper,the natural rubber is chosen as the main constituents for the transition layer of all-steel load radial tyre,which is pre-vulcanized by 500-keV E-beam irradiation of up to 60 kGy.The results show that th...In this paper,the natural rubber is chosen as the main constituents for the transition layer of all-steel load radial tyre,which is pre-vulcanized by 500-keV E-beam irradiation of up to 60 kGy.The results show that the green strength of transitional layer increases with the dose,reaching four times as much as the control(without irradiation) at 60 kGy.The final mechanical properties do not differ significantly from those of the control except that the aging and fatigue performance increased.However,thickness of the natural rubber transitional layer for an average single tyre can be reduced by 1 mm(or 1.5 kg) without obvious adverse effect on tyre performance.展开更多
文摘以玉米和赭曲霉毒素A纯品为研究对象,研究了电子束辐照对玉米品质的影响,探讨了辐照对赭曲霉毒素A的降解效果。结果表明,电子束辐照对玉米的常规营养成分、氨基酸含量及其组成几乎没有影响,但5kGy剂量的电子束辐照对玉米脂肪酸组成及脂肪酸值有显著影响。赭曲霉毒素A的降解率随着辐照剂量的增加而提高,在3kGy的辐照剂量下,初始质量浓度为310.0μg/L的赭曲霉毒素A降解率为49.55%,当辐照剂量增大到5 k Gy时,降解率达到93.19%,此后降解率随辐照剂量增加的趋势变缓。因此,3~5 k Gy剂量的电子束辐照不会降低玉米品质,并能够降解赭曲霉毒素A。
基金Supported by Henan Province-Chinese Academy of Sciences Cooperation project(No.092106000021)the Scientific and Technological Brainstorm project of Erqi District,Zhengzhou City(No.20103315)
文摘In this paper,the natural rubber is chosen as the main constituents for the transition layer of all-steel load radial tyre,which is pre-vulcanized by 500-keV E-beam irradiation of up to 60 kGy.The results show that the green strength of transitional layer increases with the dose,reaching four times as much as the control(without irradiation) at 60 kGy.The final mechanical properties do not differ significantly from those of the control except that the aging and fatigue performance increased.However,thickness of the natural rubber transitional layer for an average single tyre can be reduced by 1 mm(or 1.5 kg) without obvious adverse effect on tyre performance.
