In:
Matica Srpska Journal for Natural Sciences, National Library of Serbia, , No. 139 ( 2020), p. 39-49
Abstract:
Apple fruit diseases caused by phytopathogenic species of the genus
Alternaria have become current in recent years in Serbia as well as in other
parts of the world. Due to the fact that pesticides have a number of side
effects on the environment and human health, scientists around the world are
concerned with finding alternative ways to control this important food.
Usage of microorganisms, optimization of the medium and process conditions
for their cultivation and production of biofungicides are the actual
research direction. The effect of aeration on biofungicide production by
Streptomyces hygroscopicus was studied in a 3 l stirred tank bioreactor
using a previously optimized cultivation medium with glycerol as a carbon
source. Aeration rates of 0.5, 1.0, and 1.5 vvm with constant agita?tion
speed of 100 rpm were studied. It was found that the greatest production of
antifungal metabolites effective against two Alternaria alternata isolates
occurred with an aeration of 1.5 vvm and an agitation speed of 100 rpm.
Statistical analysis showed that the largest inhi?bition zone diameters of
A. alternata KA10 (78 mm) and T1Jg3 (78.67 mm) mycelial growth were achieved
under the indicated conditions in 96 h of cultivation.
Type of Medium:
Online Resource
ISSN:
0352-4906
,
2406-0828
DOI:
10.2298/ZMSPN2039039M
Language:
English
Publisher:
National Library of Serbia
Publication Date:
2020
detail.hit.zdb_id:
2603457-8
SSG:
11
