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Updated: Feb 4, 2026

Synthesis of Plant Phenol-derived Polymeric Dyes for Direct or Mordant-based Hair Dyeing
Published on: December 1, 2016
Furan, phenolic, and heptelidic acid derivatives produced by Aspergillus oryzae
Minji Lee1, Jeong-Yong Cho1, Yu Geon Lee1
11Department of Food Science & Technology, Functional Food Research Center, and BK21 Plus Program, Chonnam National University, Gwangju, 61186 Korea.
Abstract:
Eleven compounds, including a new sesquiterpene, were isolated from the culture medium of Aspergillus oryzae incubated with capsaicin. The structure of the new compound was determined to be 1,3,5a,6,7,8,9,9a-octahydro-9-hydroxy-9-(hydroxymethyl)-6-isopropyl-1-oxobenzo[c]oxepine-4- carboxylic acid, a heptelidic acid derivative. In addition, 10 known compounds were identified, namely 5-(hydroxymethyl)-3-furancarboxylic acid (flufuran), 3-hydroxypropanoic acid, 5-(hydroxymethyl)-2- furancarboxylic acid, 2-(4-hydroxyphenyl)-ethanol, 4-hydroxybenzoic acid, vanillic acid, 3,4-dihydroxybenzoic acid, 2-furanol, hydroheptelidic acid, and trichoderonic acid A, using spectroscopic data from nuclear magnetic resonance and electrospray ionization-mass spectroscopy.
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