Hypersaline environments, represented by the chotts, Sebkhas and saline soils, etc., are a typical example of extreme environment harboring particularly interesting microbial flara. In this context, aim word is to try make characterization bacteria in waters chott Aïn El-Beida region Ouargla (South Algeria). The water samples taken characterized pH between 6.6 8.39, neutral alkaline water, with...

A mutant Aspergillus carbonarius produces partially saturated canthaxanthin (PSC; C(40)H(62)O(2)) during submerged fermentation. The pigment was extracted from dried biomass using various organic solvents and purified using nanofiltration (NF) and nonporous membranes. Particle size had a great influence; PSC extractability from fines fraction of biomass (75-105 microm) was 1.5-fold higher compa...

This study was designed to investigate the antifungal activity of Bacillus pumilus 344-3 against toxigenic fungi. In vitro co-incubation assay revealed that A. carbonarius AC82, niger AN8 and P. digitatum PD43 are most sensitive fungi bacterial compounds with zone inhibition 29.2 mm, 27.7 mm 27.1 respectively. The addition culture supernatant at low concentration in fungal growth medium stimula...

Little is known on the impact that climate change (CC) may have Aspergillus carbonarius and Ochratoxin A (OTA) contamination of grapes, especially in Mediterranean region where CC scenarios temperature are expected to increase by +2–5 °C CO 2 from 400 800/1200 ppm. This study examined effect (i) current increased alternating 11.5 h dark/12.5 light cycle (15–28 vs 18–34 °C), representative North...