| mycoflora of soybeans used for meju fermentation. | diverse fungi are present in korean traditional meju and they are known to play an important role in fermented soybean products. to determine the origin of the fungi in meju, we examined the mycoflora of soybeans from 10 traditional meju factories. the samples were untreated or treated with sodium hypochlorite, and placed on malt extract agar (mea), dichloran 18% glycerol agar (dg18), and dichloran rose bengal chloramphenicol agar (drbc) medium. a total of 794 fungal strains were isolated and th ... | 2013 | 23874133 |
| molecular identification of isolated fungi from stored apples in riyadh, saudi arabia. | fungi causes most plant disease. when fruits are stored at suboptimal conditions, fungi grows, and some produce mycotoxin which can be dangerous for human consumption. studies have shown that the penicillium and monilinia species commonly cause spoilage of fruits, especially apples. several other genera and species were reported to grow to spoil fruits. this study was conducted to isolate and identify fruit spoilage by fungi on apples collected in riyadh, saudi arabia and conduct a molecular ide ... | 2013 | 24235866 |
| metagenomic analysis of medicinal cannabis samples; pathogenic bacteria, toxigenic fungi, and beneficial microbes grow in culture-based yeast and mold tests. | background: the presence of bacteria and fungi in medicinal or recreational cannabis poses a potential threat to consumers if those microbes include pathogenic or toxigenic species. this study evaluated two widely used culture-based platforms for total yeast and mold (tym) testing marketed by 3m corporation and biomérieux, in comparison with a quantitative pcr (qpcr) approach marketed by medicinal genomics corporation. methods: a set of 15 medicinal cannabis samples were analyzed using 3m and bi ... | 2016 | 27853518 |
| secondary metabolites characteristic of penicillium citrinum, penicillium steckii and related species. | two new carboxylic acids, tanzawaic acid e (1) and f (2) in addition to the unknown benzopyran 3,7-dimethyl-1,8-dihydroxy-6-methoxy-isochroman (3), and the known mycotoxin 3,7-dimethyl-8-hydroxy-6-methoxyisochroman (4) were produced by a marine-derived strain of penicillium steckii isolated from an unidentified tunicate. the carboxylic acids and the benzopyran were identified on the basis of mass spectrometry, and one and two dimensional nmr spectroscopic techniques. the structures 1 and 2 resem ... | 2000 | 10870185 |
| antibacterial activity of marine-derived fungi. | a total of 227 marine isolates of ubiquitous fungi were cultivated on different media and the secondary metabolite content of the extracts (ethyl acetate/chloroform/methanol 3:2:1) characterized by hplc. the fungi were secured from animals, plants and sediments of venezuelan waters (0-10 m) including mangroves and lagoonal areas. the extracts were tested for antibacterial activity. a total of 7 were active towards vibrio parahaemolyticus and 55 towards staphylococcus aureus, representing 18 diff ... | 1998 | 10409050 |
| comparison of growth and cellulolytic enzyme production in aspergillus chevalieri and penicillium steckii from mouldy cacao beans. | aspergillus chevalieri and penicillium steckii grew best at 30 degrees c and at ph of 6.5-7.5. among the carbon sources employed, sucrose supported maximum growth of a. chevalieri while glucose was best for p. steckii. growth of both organisms was optimal on ammonium tartrate as the sole source of nitrogen. a. chevalieri and p. steckii grew in synthetic media containing, respectively, soluble or insoluble cellulose as the sole carbon source, releasing a cellulolytic enzyme into the medium. the e ... | 1991 | 1822836 |
| a new isochroman mycotoxin isolated from penicillium steckii. | | 1979 | 546963 |
| three new records of penicillium species isolated from insect specimens in korea. | three penicillium species have been isolated from insect specimens in korea; penicillium sp., p. steckii, and p. polonicum. penicillium sp. (knu12-3-2) was isolated from lixus imperessiventris, while p. polonicum (knu12-1-8) and penicillium steckii (knu12-2-9) were isolated from muljarus japonicas and meloe proscarabaeus, respectively. the identification was based on the morphological characteristics of the fungi and in internal transcribed spacer analysis. this is the first report on the isolat ... | 2013 | 23874136 |
| anti-inflammatory activity of tanzawaic acid derivatives from a marine-derived fungus penicillium steckii 108yd142. | chemical investigation of a marine-derived fungus, penicillium steckii 108yd142, resulted in the discovery of a new tanzawaic acid derivative, tanzawaic acid q (1), together with four known analogues, tanzawaic acids a (2), c (3), d (4), and k (5). the structures of tanzawaic acid derivatives 1-5 were determined by the detailed analysis of 1d, 2d nmr and lc-ms data, along with chemical methods and literature data analysis. these compounds significantly inhibited nitric oxide (no) production and ... | 2016 | 26761016 |
| characterization of a novel l-amino acid oxidase with protein oxidizing activity from penicillium steckii aiu 027. | an enzyme exhibiting oxidase activity for β-lactoglobulin, myoglobin, and l-lysine-containing peptides was found from a newly isolated fungal strain, penicillium steckii aiu 027. the enzyme also oxidized l-amino acids, n(α)-benzyloxycarbonyl-l-lysine (n(α)-z-l-lysine) and n(ε)-z-l-lysine, but not d-amino acids and amines. thus, the enzyme was classified into a group of l-amino acid oxidases (l-aaos). however, characteristics of this l-aao were significantly different from those of other l-aaos a ... | 2014 | 24333187 |