Successfully controlled isomerization and pheophytinization of bacteriochlorophyll b by weak acid in the dark in vitro

Autor:	Masayuki Hara, Jun Miyake, Hideo Kise, Masami Kobayashi, Machiko Akiyama, Mayu Yamamura, Satoshi Akutsu
Rok vydání:	1998
Předmět:	biology Chemistry Infrared Photochemistry biology.organism_classification Biochemistry Analytical Chemistry Absorbance chemistry.chemical_compound Yield (chemistry) Acetone Environmental Chemistry Bacteriochlorophyll Rhodospirillales Rhodospirillaceae Isomerization Spectroscopy
Zdroj:	Analytica Chimica Acta. 361:285-290
ISSN:	0003-2670
DOI:	10.1016/s0003-2670(98)00030-0
Popis:	The infrared absorbance peak at 795 nm rapidly disappears while the absorbance at 675 nm increases simultaneously with the addition of acid to a solution of bacteriochlorophyll b (BChl b) in acetone in the dark. These optical changes result from light-independent isomerization, which converts BChl b to 3-desvinyl-3-acetyl-chlorophyll a. However, in aqueous acetone in the presence of acid, BChl b undergoes pheophytinization (demetalation) to yield bacteriopheophytin b. Both isomerization and pheophytinization of BChl b were successfully controlled by acid in the dark.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::590dc7a445d7007873158aa736dc5887 https://doi.org/10.1016/s0003-2670(98)00030-0 Zobrazit plný text záznamu Full Text from ScienceDirect