Invertase production of grain storage moulds was studied. Aspergillus spp. and Penicillium spp. were grown in a sucrose based liquid medium, at 37 degrees C. The A. flavus group (A. flavus, A. parasiticus, A. nomius, A. oryzae) and A. fumigatus showed a fast growth and intense invertase activity, while other Aspergillus spp. and Penicillium spp. grew slower and produced less invertase. The pattern of accumulated reducing sugar after 20 and 48 h of incubation was characteristic to the species studied. From inoculation studies the detection limit was calculated as: 1-10 conidia of A. flavus group and A. fumigatus, as compared to 10(3)-10(4) for the other species studied. The method may be recommended as a rapid test for the detection of A. flavus group and A. fumigatus in food and feed grains.
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http://dx.doi.org/10.1016/s0168-1605(00)00360-3 | DOI Listing |
Polymers (Basel)
January 2025
Institute of Environmental Sciences, Hungarian University of Agriculture and Life Sciences, Páter Károly u. 1, H-2100 Gödöllő, Hungary.
This study attempted to isolate and identify pedospheric microbes originating in dumpsites and utilized them for the degradation of selected synthetic polymers for the first time in a cost-effective, ecologically favorable and sustainable manner. Specifically, low-density polyethylene (LDPE) and polyurethane (PUR) were converted by the isolated fungi, i.e.
View Article and Find Full Text PDFInt J Food Microbiol
January 2025
Beijing Key Laboratory of Optimization Design for Modern Agriculture Equipment, College of Engineering, China Agriculture University, Beijing 100083, China.
Understanding and controlling the dynamic process of aflatoxin B (AFB) accumulation by Aspergillus flavus (A. flavus) remains challenging. In this study, the A.
View Article and Find Full Text PDFBMC Plant Biol
January 2025
College of Forestry, Southwest Forestry University, Kunming, Yunnan, 650224, China.
Background: Phaius Lour. (Collabieae, Orchidaceae) is a small genus consisting of about 45 species, with highly ornamental and medicinal values. However, the phylogenetic relationship of Phaius among Calanthe s.
View Article and Find Full Text PDFMed Chem
January 2025
Graduate School of NanoBio Sciences, Yokohama City University, 22-2, Seto, Kanazawa-Ku, Yokohama 236-0027, Japan.
Aim: There is an urgent need for new antimicrobial compounds with alternative modes of action for the treatment of drug-resistant bacterial and fungal pathogens.
Background: Carbohydrates and their derivatives are essential for biochemical and medicinal research because of their efficacy in the synthesis of biologically active drugs.
Objective: In the present study, a series of methyl α-D-mannopyranoside (MMP) derivatives (2-6) were prepared via direct acylation, and their biological properties were characterized.
Sci Rep
January 2025
Dental Health Department, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh, 11433, Saudi Arabia.
In this study, the endophytic fungus Coniothyrium chaingmaiense-KUMBMDBT-25 was isolated from the healthy stem of Euphorbia tirucalli, mass cultivated by submerged fermentation, and extracted using ethyl acetate as a solvent. The extract was subjected to GC-MS analysis. The synthesized Con-AgNPs were characterized through various bioanalytical methods.
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