Influence of temperature, pH and water activity on “in vitro” inhibition of Penicillium glabrum (Wehmer) Westling by yeasts

Sodium-benzoate and citrus extract increase the effect of homogenization towards spores of Fusarium oxysporum in pineapple juice

“…Strain F. oxysporum DSMZ 2018 was used throughout this research; the microorganism was purchased from a Public Collection (Deutsche Sammlung von Mikroorganismem und Zellkulturen's collection-DSMZ, Braunschweig, Germany) and maintained on Potato Dextrose Agar plates (PDA, Oxoid, Milan, Italy) at 4 C. Spore suspension was prepared as reported by Sinigaglia, Corbo, and Ciccarone (1998).…”

Use of high pressure homogenization as a mean to control the growth of foodborne moulds in tomato juice

“…A conidia suspension of each strain was prepared by washing the mould on PDA plates (25°C for 1 week) with a Tween 80 solution (0.05% v/v) (C. Erba, Milan, Italy), as described by Sinigaglia, Corbo, and Ciccarone (1998); conidia concentration after the preparation was ca. 10 7 conidia/ml, evaluated through the spread plate method on PDA plates, incubated at 25°C for 5 days.…”

Bioprocessing of wheat bran for the production of lignocellulolytic enzyme cocktail byCotylidia pannosaunder submerged conditions

“…26,27 The optimum temperature for lignocellulolytic enzyme production was similar to those of other mesophilic fungi such as Aspergillus japonicas C03, Aspergillus glaucas XC8, A. niger MS82, Trichoderma reesei Rut C30, Trichoderma viride strain EU2-77, Penicillum echinulatum and Fusarium oxysporum. The maximum xylanase production has already been reported at a temperature range of [25][26][27][28][29][30] C by Trichoderma viride 28 and P. glabrum. 29 Usually, the maximal reported temperature for these filamentous fungus is 35 C, with an indication of the absence of growth 37 C. 30,31 The activity of lignocellulolytic enzymes also increased on increasing the agitation up to 100 rpm.…”

“…The maximum xylanase production has already been reported at a temperature range of [25][26][27][28][29][30] C by Trichoderma viride 28 and P. glabrum. 29 Usually, the maximal reported temperature for these filamentous fungus is 35 C, with an indication of the absence of growth 37 C. 30,31 The activity of lignocellulolytic enzymes also increased on increasing the agitation up to 100 rpm. As for the submerged fermentation, mechanical agitation is known to be a crucial factor because of its effectiveness in mixing the contents of the medium, uniform air distribution and prevention of cell clumping.…”

“…The enzyme production was carried out at different pH (4-6) when incubated at a different temp. (25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37)(38)(39)(40) C) for 24-120 h at 50 ¡150 rpm based on the Central Composite Design (CCD) of RSM (Table 4 and Table 1). An aliquot of fermentation broth was withdrawn from the flask after a regular interval and centrifuged at 4 C at 7000 rpm for 15 min.…”