Pheophytinization of Chlorophyll a and Chlorophyll a′ in Aqueous Acetone
Pheophytinization of Chlorophyll a and Chlorophyll a′ in Aqueous Acetone
复制标题
丙酮水溶液中叶绿素 a 和叶绿素 a 的脱镁叶绿素化
DOI：
10.1246/bcsj.61.2969
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发表时间：
1988
影响因子：
4
通讯作者：
Tadashi Watanabe
中科院分区：
文献类型：
--
作者：
H. Mazaki;Tadashi Watanabe
本文比较了叶绿素a及其C-10差向异构体Chl a′在含HCl的丙酮溶液中脱镁叶绿素化的动力学。对于每种色素，脱镁叶绿素化速率与质子成二级关系，在相同条件下，Chl a′的脱镁叶绿素化速率比Chl a快约50%，这可能是由于Chl a′中的Mg-N键较弱。
Chlorophyll (Chl) a and its C-10 epimer, Chl a′, are compared for pheophytinization (demetallation) kinetics in aqueous acetone containing HCl. For each pigment the pheophytinization rate is of second order with respect to proton, and under identical conditions Chl a′ is pheophytinized by roughly 50% faster than Chl a, due probably to weaker Mg–N bonds in Chl a′.