Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 63, Issue 2, Pages 1236-1244Publisher
ELSEVIER
DOI: 10.1016/j.lwt.2015.04.024
Keywords
sulfated polysaccharides; Pterocladia capillacea algae; Enzymatic hydrolysis; Antioxidant activity; Phenolic content
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Funding
- American University in Cairo (AUC)
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Sulfated polysaccharides (SPs) were extracted from red algae, Pterocladia capillacea and the produced fractions were hydrolyzed using different enzymes. 1,1-Diphenyl-2-Picryl-Hydrazyl (DPPH) and peroxide scavenging activities as well as phenolic content of the extracted fractions and their hydrolysates were determined. Viscozyme hydrolysate exhibited the highest phenolic content and a DPPH scavenging activity of about 92% with more than 50% increase over its mother fraction. It also showed a high antibacterial activity relative to commercial antibiotics. Phenolic content determination and HPLC analysis suggested that the high antioxidant activity of viscozyme hydrolysate could be owed to its short-length chain and its high content of phenolic compounds as well as the predominance of mannose and galactose sugars in the polysaccharide chain. (C) 2015 Elsevier Ltd. All rights reserved.
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