用傅立叶变换红外光谱法研究核辐照对人参粉成分的影响

摘要

本文采用傅立叶变换红外光谱(吸收光谱、二阶导数谱及差谱)法对经不同剂量核辐照的人参粉进行了对比研究.辐照剂量不高于9 kGy时,人参粉样品的化学成分几乎没有发生变化;人参粉样品经15kGy及以上的辐照剂量辐照后,可能产生新的化学成分,表明采用辐照剂量不高于9 kGy的核辐照杀灭人参粉污染的微生物和各种寄生虫卵是可行的;较低辐照剂量(低于3 kGy)辐照的人参粉,可能影响到人参粉中生命体分子(含羟基-OH)的结构;以21 kGy剂量核辐照后的人参粉样品可能糖减少了或是糖的类型增多了.%FTIR spectra of r-ray irradiated Panasx ginseng powder with different doses were studied in the paper. Meanwhile, the second derivative and difference specra of these FTIR spectra for irradiated panax ginseng powder were also studied . It was found that the chemical components of the irradiated Panax ginseng powder with the under 9kGy had almost no changes . However, the chemical components of the irradiated Panax ginseng powder with the dose of 15 kGy or beyond 15 kGy will be changed. Thus, it's feasible to kill polluted microorganism and all kinds of parasite ovum in the Panaax ginseng powder by r-ray irradiation with the dose of 9 kGy. The exererimental data show that the creature of molecular (hydroxyl-OH) structure of the Panax ginseng powder irradiated with the close of 3 kGy will be influenced, while the types of some sugar in the Panaxc ginseng powder irradiated were increased with the dose of 21 kGy.