Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
A strain with urethanase activity was isolated from mouse gastrointestine. By combination of morphological characterization of the colony, hyphae, and spore and the sequence analysis of its rDNA ITS, the strain was determined as Penicillium variabile and named as P. variabile JN-A525. The enzymatic properties of urethanase from P. variabile JN-A525 were further studied. The optimum temperature and pH value of urethanase are of 50 °C and 6.0, respectively. The enzyme maintains stability when the temperature is below 50 °C and the pH is in the range of 7.0-10.0. The enzyme also exhibits ethanol tolerance. It can remove ethyl carbamate from Chinese rice wine without the change of flavor substances in the wine.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s12010-013-0178-2 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Isolation of azaphilone derivatives from the marine-derived fungus Talaromyces variabilis.
Fitoterapia
September 2025
Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.; Laboratory of Marine Drugs and Bioproducts, Qingdao Marine Science and Technology Center, Qingdao 266237, China. Electronic address:
Three new azaphilone derivatives, namely talavaritones A-C (1-3), together with seven known compounds (4-10) were isolated from the soft coral-derived fungus Talaromyces variabilis. The structures of these compounds were elucidated by comprehensive spectral analyses, DP4+ probability analyses, together with experimental and calculated ECD spectra. Structurally, compound 1 is the first reported example of 1, 2-seco-azaphilone.
View Article and Find Full Text PDFCytotoxic Pentaketide-Sesquiterpenes from the Marine-Derived Fungus M22734.
Mar Drugs
June 2024
Xiamen Key Laboratory of Marine Medicinal Natural Products Resources, Xiamen Medical College, Xiamen 361023, China.
, a filamentous fungus widely distributed across terrestrial and marine environments, can produce a diverse array of natural products, including alkaloids, polyketones, and polyketide-terpenoids. Among these, chrodrimanins represented a typical class of natural products. In this study, we isolated three previously undescribed pentaketide-sesquiterpenes, 8,9--chrodrimanins (-), along with eight known compounds (-).
View Article and Find Full Text PDFEffects of zinc oxide nanocomposites on microorganism growth and protection of physicochemical quality during maize storage.
Int J Food Microbiol
February 2024
Grain Storage and Security Engineering Research Center of Education Ministry, School of Food and Strategic Reserves, Henan University of Technology, Zhengzhou 450001, China. Electronic address:
Maize moldy and spoilage due to microbial growth is a significant challenge in grain storage. This study aimed to evaluate the effectiveness of a zinc oxide nanocomposite, ZnO@mSiO, prepared in our previous research, in inhibiting mold growth and preserving maize cell quality. The results demonstrated that ZnO@mSiO could effectively inhibit the growth of dominant microorganism, Aspergillus flavus, Talaromyces variabilis, Penicillium citrinum and Fusarium graminearum, in maize storage.
View Article and Find Full Text PDFA new steroid with potent antimicrobial activities and two new polyketides from Penicillium variabile EN-394, a fungus obtained from the marine red alga Rhodomela confervoides.
J Antibiot (Tokyo)
January 2024
CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Nanhai Road 7, 266071, Qingdao, People's Republic of China.
Three new compounds, including one steroid named penivariod A (1) and two polyketides penivarides A and B (2 and 3), as well as six known derivatives (4-9) were isolated from Penicillium variabile EN-394, a fungus afforded from the marine red alga Rhodomela confervoides. Their structures were elucidated by analysis of the HRESIMS, 1D and 2D NMR. The absolute stereochemistry was determined by X-ray crystallographic data, gauge-independent atomic orbital (GIAO) NMR shift calculation followed by DP4+ analysis combined with calculated electronic circular dichroism (ECD).
View Article and Find Full Text PDFMolecular Identification of Penicillium sp. Isolated from Citrus Fruits.
Curr Microbiol
May 2021
Botany and Microbiology Department, Faculty of Science, South Valley University, Qena, Egypt.
Penicillium is one of the most important postharvest pathogens of citrus fruits worldwide. It induces blue or green mold disease, a decay that can lead to significant economic losses during storage. Based on internal transcribed spacer (ITS) sequences, seven Penicillium species and one closely related Talaromyces variabilis were identified from 30 rotten samples of citrus fruits marketed in Qena.
View Article and Find Full Text PDF