Publications by authors named "Zhi-mao Mai"
Three new tricyclic cyclopiazonic acid (CPA) related alkaloids asperorydines N-P (1-3), together with six known compounds (4-9) were isolated and characterized from the fungus Aspergillus flavus SCSIO F025 derived from the deep-sea sediments of South China Sea. The structures including absolute configurations of 1-3 were deduced from spectroscopic data, X-ray diffraction analysis, and electronic circular dichroism (ECD). All compounds were evaluated for the antioxidative activities against DPPH, cytotoxic activities against four tumor cell lines (SF-268, HepG-2, MCF-7, and A549), and antimicrobial activities.
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- Kluyveromyces marxianus is gaining attention for ethanol production due to its ability to ferment at high temperatures and on diverse substrates, though the mechanisms behind this capability are not fully understood.
- Research findings show that at 40°C, K. marxianus GX-UN120 has ethanol fermentation efficiency similar to Saccharomyces cerevisiae at 34°C, with significant induction of the alcohol dehydrogenase enzyme KmAdh1 during fermentation.
- KmAdh1 is identified as the main enzyme for converting acetaldehyde to ethanol, with optimal activity at 50°C and pH 8.0, while other alcohol dehydrogenases (KmAdh2, Km