chlorophyll-c has been researched along with chlorophyllide-a* in 1 studies
1 other study(ies) available for chlorophyll-c and chlorophyllide-a
| Article | Year |
|---|---|
Pheophytinization kinetics of chlorophyll c under weakly acidic conditions: effects of acrylic acid residue at the 17-position.
Pheophytinization of chlorophyll (Chl) c1, which was isolated from the diatom Chaetoceros gracilis, was kinetically analyzed under weakly acidic conditions, and was compared with that of protochlorophyllide (PChlide) a and chlorophyllide (Chlide) a. Chl c1 possessing a trans-acrylic acid residue at the 17-position exhibited slower pheophytinization kinetics than PChlide a and Chlide a, both of which possessed a propionic acid residue at the same position. The difference in pheophytinization properties between Chl c1 and (P)Chlide a was ascribable to the electronegativity of the 17-substituent in Chl c1 larger than that of (P)Chlide a due to the C17(1)-C17(2) double bond with the conjugated 17(2)-carboxy group in Chl c1. Demetalation kinetics of PChlide a was slower than that of Chlide a, which originated from the effect of the π-macrocyclic structures. Topics: Acrylates; Chlorophyll; Chlorophyllides; Diatoms; Isomerism; Kinetics; Protochlorophyllide | 2013 |