Prophylactic antioxidants and phenolics of seagrass and seaweed species: A seasonal variation study in a Southern Indian Ocean Island, Mauritius
Journal Title: Internet Journal of Medical Update - Year 2014, Vol 9, Issue 1
Abstract
The seasonal variations in the polyphenolic contents and potential antioxidant activities of seven seaweed species (Padina gymnospora, Gracilaria salicornia, Palisada papillosa, Galaxaura rugosa, Enteromorpha intestinalis, Codium arabicum and Dictyosphaeria cavernosa) and five seagrass species (Syringodium isoetifolium, Halodule uninervis, Thalassodendron ciliatum, Halophila ovalis and Halophila stipulacea) were assessed. In summer, the highest total phenolic content was recorded in the seaweed P. gymnospora and the lowest in G. rugosa. The total phenolic contents in the seagrass species were significantly higher than those observed in the seaweed species during both seasons. The highest flavonoid concentrations (FC) were observed in the seaweed species E. intestinalis in winter and in the seaweed P. gymnospora in summer. All tested species had higher FC in winter. The highest antioxidant activity (assessed using the Ferric ion reducing antioxidant power) was in the seaweed P. gymnospora during summer (FRAP: 9.7 ± 0.3 X10ˉ³ Fe²+mM/g DW). However, the seaweed P. gymnospora extract and the extracts from all 5 seagrass species had significantly different (p<0.01) antioxidant activities (assessed using the Trolox equivalent antioxidant capacity assay) in winter compared to the summer season. The collective data are indicative of the potential of Mauritian seaweeds and seagrasses as possible sources of secondary metabolites for pharmaceuticals. Further analysis using bio-efficacy models are warranted to justify the phytoceutical capacity of the seaweeds and seagrasses.
Authors and Affiliations
Sundy Ramah, Lekraj Etwarysing, Nazia Auckloo, Arvind Gopeechund, Ranjeet Bhagooli, Theeshan Bahorun
Keywords
Related Articles
- EP ID EP120885
- DOI -
- Views 99
- Downloads 0
Randomized, interventional, prospective, comparative study to evaluate the antihypertensive efficacy and tolerability of ramipril versus telmisartan in stage 1 hypertensive patients with diabetes mellitus
Angiotensin converting enzyme inhibitors and angiotensin receptor blockers are keystones for therapy of hypertension in diabetes because they show favourable effects on diabetic nephropathy and cardiovascular disease out...
Pedunculated parotid oncocytoma in submandibular region
Oncocytoma of the parotid is a very uncommon benign tumour accounting for 1% of benign tumours of the parotid. Clinically these swellings cannot be distinguished from other tumours and diagnosis is mainly by histopatholo...
Central nervous system tuberculomata presenting as internuclear ophthalmoplegia
Central nervous system (CNS) tuberculoma can have variable presentation depending upon the site and number of tuberculomata. We are reporting a rare case of a 15 years old girl who presented to our hospital with binocula...
Seroprevalence pattern among blood donors in a tertiary health care center
Although blood transfusion is a life-saving maneuver, it is associated with certain risks. In general, transfusion-related adverse events are categorized as infectious and noninfectious. Transfusion-transmissible infecti...
Prophylactic antioxidants and phenolics of seagrass and seaweed species: A seasonal variation study in a Southern Indian Ocean Island, Mauritius
The seasonal variations in the polyphenolic contents and potential antioxidant activities of seven seaweed species (Padina gymnospora, Gracilaria salicornia, Palisada papillosa, Galaxaura rugosa, Enteromorpha intestinali...