| In vitro: |
| Nat Prod Res. 2014;28(16):1288-92. | | Bioactive metabolites from the mycelia of the basidiomycete Hericium erinaceum.[Pubmed: 24635196 ] |
METHODS AND RESULTS:
Seven known compounds, three diketopiperazine alkaloids, 12β-hydroxyverruculogen TR-2 (1), fumitremorgin C (2) and methylthiogliotoxin (5), two hetero-spirocyclic γ-lactam alkaloids, pseurotin A (3) and FD-838 (4), and cerevisterol (6) and herierin IV (7), were isolated from the mycelia of the basidiomycete Hericium erinaceum and identified by spectroscopic analyses. The antioxidant and antifungal activities of compounds 1-6 were evaluated.
CONCLUSIONS:
The results indicated that compounds 1, 3 and 6 exhibited potential antioxidant activity against DPPH (2, 2-diphenyl-1-picrylhydrazyl) radical with their IC50 data of ca. 12 μM, compared with positive control tertiary butylhydroquinone. In addition, compound 4 significantly inhibited the growth of two plant fungal pathogens Botrytis cinerea and Glomerella cingulata with an minimum inhibitory concentration of 6.25 μM for each, similar to that of the positive fungicide, carbendazim. Compounds 1-5 were isolated from the genus Hericium for the first time. | | Nat Prod Commun. 2012 Feb;7(2):165-8. | | Antiparasitic and anticancer constituents of the endophytic fungus Aspergillus sp. strain F1544.[Pubmed: 22474943] |
METHODS AND RESULTS:
With the combined goal of finding the best anti-parasitic and anti-cancer activities as well as isolating the bioactive agents and studying their structures and biological properties, we proceeded to perform a small-scale cultivation of Aspergillus sp. strain F1544 using Potato Dextrose, Malt Extract, Czapek Dox and Eight Vegetables media. From the more promising extracts (obtaining using potato dextrose and czapek dox media in large scale) of this fungus, we isolated the five compounds: pseurotin A (1), 14-norpseurotin A (2), FD-838 (3), and pseurotin D (4), and fumoquinone B (5).
CONCLUSIONS:
All compounds showed good antileishmanial and moderate anticancer activities. |
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