Sabah Abo-El-maaty Ahmed alsayed
Dept. Head
Effect of some factors on the production of curde exopolysaccharides with antioxedant activity from marine bacteria
Benha Journal of Applied Sciences (BJAS) • 2022
Publication Information
Authors
E.G.Abd El Nasser , M.G.Hassan , S.A.Abo-Elmaaty , M.E.El Awady and S.S.Mohamed
Keywords
Exopolysaccharides, Production, Antioxidant, Marine, Bacteria
Journal
Benha Journal of Applied Sciences (BJAS)
Publisher
Not Available
Volume
7
Issue
4
Pages
39-45
publication.type
Local
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
It is possible to use marine microbial polysaccharides as antioxidants in a variety of sectors because of their unique
properties. A total of 12 bacterial isolates were gathered from a variety of coastal habitats for further study. These bacteria
were tested for exopolysaccharides (EPSs) synthesis, with the top bacterial isolate ES12 producing 6.8 g/l. DPPH free radical
scavenging activity was used to assess antioxidant activity, with ES12 (97.20 percent) and ES6 (19.81 percent) being the
highest and lowest, respectively, whereas five EPSs did not demonstrate this activity. The maximum yield of EPS was 8.2 g/l
and cell dry was (4.5 g/l) at 40°C after three days, RPM 120, pH 7, peptone as nitrogen sources, and sucrose with (20 g/l) as a
carbon source for isolate (ES12) in the investigation.
properties. A total of 12 bacterial isolates were gathered from a variety of coastal habitats for further study. These bacteria
were tested for exopolysaccharides (EPSs) synthesis, with the top bacterial isolate ES12 producing 6.8 g/l. DPPH free radical
scavenging activity was used to assess antioxidant activity, with ES12 (97.20 percent) and ES6 (19.81 percent) being the
highest and lowest, respectively, whereas five EPSs did not demonstrate this activity. The maximum yield of EPS was 8.2 g/l
and cell dry was (4.5 g/l) at 40°C after three days, RPM 120, pH 7, peptone as nitrogen sources, and sucrose with (20 g/l) as a
carbon source for isolate (ES12) in the investigation.