xanthophyll pigments造句

• The expression quantity increased with the induction time by iptg , and accounted for 25 percent of the total proteins after 4 - hour induction . absorption spectrum together with xanthophyll pigments quantification by hplc demonstrated that the expressed vde has its enzyme activity , which can de - epoxidate v into a and z in vitro
  吸收光谱差值a _ ( 502 - 540 )随反应的进行逐渐增大，反应体系总色素的hplc分析表明， v逐渐降低，而z刚好相反，说明表达的蛋白具有与活体vde酶相同的功能，能在体外将v转变为a和z 。