Enzymatic Production of Caffeic Acid by Koji from Plant Resources Containing Caffeoylquinic Acid Derivatives

Autor: Tomohisa Yoshidome, Miho Osako, Makoto Yoshimoto, Rie Kurata-Azuma, Makoto Fujii, De-Xing Hou, Kohji Ikeda
Rok vydání: 2005
Předmět:
Zdroj: Bioscience, Biotechnology, and Biochemistry. 69:1777-1781
ISSN: 1347-6947
0916-8451
DOI: 10.1271/bbb.69.1777
Popis: The effect of a koji (Aspergillus awamori mut.) extract on the caffeoylquinic acid derivatives purified from sweetpotato (Ipomoea batatas L.) leaves was examined to develop the mass production of caffeic acid. A koji extract hydrolyzed the caffeoylquinic acid derivatives, chlorogenic acid, 3,4-di-O-caffeoylquinic acid, 3,5-di-O-caffeoylquinic acid, 4,5-di-O-caffeoylquinic acid and 3,4,5-tri-O-caffeoylquinic acid, to caffeic acid. Furthermore, the koji extract also converted the major polyphenolic components from sweetpotato, burdock (Arctium lappa L.), and mugwort (Artemisia indica var. maximowiczii) leaves to caffeic acid. These results suggest that the production of caffeic acid from plant resources containing caffeoylquinic acid derivatives is possible.
Databáze: OpenAIRE