CAJ | 학술논문

对污染小麦籽实中As的存在形态及其稳定性进行研究，结果表明:As在小麦籽实的主要营养成分中,以蛋白质中的分布比例最高,达74%,脂肪中只占2%,剩余残渣中占24%.小麦籽实中的As以蛋白质结合形态为主,其表观相对分子质量分别为54500和5500,在消化酶的处理下,大分子蛋白质-As结合体不稳定,可发生分解变成相对分子质量较小的结合物.
대오염소맥자실중As적존재형태급기은정성진행연구，결과표명:As재소맥자실적주요영양성분중,이단백질중적분포비례최고,체74%,지방중지점2%,잉여잔사중점24%.소맥자실중적As이단백질결합형태위주,기표관상대분자질량분별위54500화5500,재소화매적처리하,대분자단백질-As결합체불은정,가발생분해변성상대분자질량교소적결합물.
The chemical forms of As in polluted wheat seed and its stabilitywas evaluated. The results show that in various nourish components of protein, fat and residues, the percentage of As in protein is the highest (74%), As in fat is very little (2%), the percentage of As in residue is 24%. As in wheat seed chiefly exists in association with the parts of high protein. The apparent molecular weight of protein-binding As is 54500 and 5500, respectively. After the treatment of pepsin and trypsin digestion, the protein-binding As with molecular weight of 54500 is not stable, and is easily decomposed into the low molecular weight protein-binding forms (5500).