TY - JOUR
AU - OSAWA, Toshihiko
AB - Abstract Rice mold starters prepared from Aspergillus species are commonly used for the manufacture of koji in the production of oriental fermented foods. Methanol extracts of rice mold starters fermented by the Aspergillus species, A. awamori, A. kawachii, A. oryzae, A. saitoi, and A. sojae, were examined for their antioxidative activity by using a 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging system. The extracts of A. awamori, A. kawachii, and A. saitoi exhibited higher activity than those of A. oryzae and A. sojae. An antioxidant was isolated from the extract of A. saitoi and identified as pyranonigrin-A by 1H-NMR, 13C-NMR, and FAB-MS analyses. The antioxidative activity of pyranonigrin-A was approximately equivalent to that of ferulic acid, an antioxidant in cereal grain. It was present in rice mold starters prepared by A. awamori, A. kawachii, and A. saitoi, although there was no pyranonigrin-A in the A. oryzae and A. sojae starters. 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PDF This content is only available as a PDF. © Japan Society for Bioscience, Biotechnology, and Agrochemistry 2007 This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model) © Japan Society for Bioscience, Biotechnology, and Agrochemistry 2007
TI - Isolation of the Antioxidant Pyranonigrin-A from Rice Mold Starters Used in the Manufacturing Process of Fermented Foods
JF - Bioscience Biotechnology and Biochemistry
DO - 10.1271/bbb.70310
DA - 2007-10-23
UR - https://www.deepdyve.com/lp/oxford-university-press/isolation-of-the-antioxidant-pyranonigrin-a-from-rice-mold-starters-mjrLTSuPsC
SP - 2515
EP - 2521
VL - 71
IS - 10
DP - DeepDyve
ER -