TY  - JOUR
ID  - scholars4753
KW  - Agents
KW  -  Anti-oxidant activities; Correlation coefficient; Cyanobacterial species; DPPH scavenging method; Natural antioxidants; Phenolic compounds; Phenolic content; Total phenolic content
KW  -  Antioxidants
N2  - The antioxidant activity and total phenolic content of different extracts (hexane, chloroform, ethyl acetate, ethanol (70) and water) of three tested cyanobacterial species (Phormidium sp., Oscillatoria sp. and Nostoc muscorum) were evaluated, using 2,2Ā“-diphenyl-1-picrylhydrazyl (DPPH) scavenging method and Folinā??Ciocalteu method, respectively. The ethanolic extract of Oscillatoria sp. possessed the highest antioxidant activity (69.13Ā±0.35) and therefore could be potential source of natural antioxidants. The correlation coefficients between the antioxidant activities and the phenolic contents were very small in most of extracts (R2 = 0.0291-0.2934). However, the water extract demonstrated relatively higher value (R2= 0.7446). Thus, phenolic compounds may not be considered the major contributors for the antioxidant activities of these cyanobacterial species. So, other antioxidant substances may be present in the extract and share in this activity. Ā© 2014 Trans Tech Publications, Switzerland.
VL  - 625
A1  - Ali, H.E.A.
A1  - Shanab, S.M.M.
A1  - Abo-State, M.A.M.
A1  - Shalaby, E.A.A.
A1  - El Demerdash, U.M.N.
A1  - Abdullah, M.A.
JF  - Applied Mechanics and Materials
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84914141995&doi=10.4028%2fwww.scientific.net%2fAMM.625.826&partnerID=40&md5=70df49b9239e940bf4edb561ce6eeb8f
Y1  - 2014///
SP  - 826
TI  - Determination of antioxidant activities and total phenolic contents of three cyanobacterial species
N1  - cited By 2; Conference of 3rd International Conference on Process Engineering and Advanced Materials, ICPEAM 2014 ; Conference Date: 3 June 2014 Through 5 June 2014; Conference Code:114811
AV  - none
EP  - 829
PB  - Trans Tech Publications Ltd
SN  - 16609336
ER  -