| dc.creator |
AĞAR, Osman Tuncay |
|
| dc.creator |
Suleria, Hafiz A. R. |
|
| dc.creator |
Subbiah, Vigasini |
|
| dc.creator |
Ebrahimi, Faezeh |
|
| dc.creator |
Dunshea, Frank R. |
|
| dc.creator |
Barrow, Colin J. |
|
| dc.date |
2023-05-01T00:00:00Z |
|
| dc.date.accessioned |
2025-02-25T10:17:35Z |
|
| dc.date.available |
2025-02-25T10:17:35Z |
|
| dc.identifier |
167ecce6-a21c-4b60-9d64-eeb6eb59abd3 |
|
| dc.identifier |
10.3390/ph16050773 |
|
| dc.identifier |
https://avesis.sdu.edu.tr/publication/details/167ecce6-a21c-4b60-9d64-eeb6eb59abd3/oai |
|
| dc.identifier.uri |
http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/98888 |
|
| dc.description |
Brown seaweed is rich in phenolic compounds and has established health benefits. However, the phenolics present in Australian beach-cast seaweed are still unclear. This study investigated the effect of ultrasonication and conventional methodologies using four different solvents on free and bound phenolics of freeze-dried brown seaweed species obtained from the southeast Australian shoreline. The phenolic content and their antioxidant potential were determined using in vitro assays followed by identification and characterization by LC-ESI-QTOF-MS/MS and quantified by HPLC-PDA. The Cystophora sp. displayed high total phenolic content (TPC) and phlorotannin content (FDA) when extracted using 70% ethanol (ultrasonication method). Cystophora sp., also exhibited strong antioxidant potential in various assays, such as DPPH, ABTS, and FRAP in 70% acetone through ultrasonication. TAC is highly correlated to FRAP, ABTS, and RPA (p < 0.05) in both extraction methodologies. LC-ESI-QTOF-MS/MS analysis identified 94 and 104 compounds in ultrasound and conventional methodologies, respectively. HPLC-PDA quantification showed phenolic acids to be higher for samples extracted using the ultrasonication methodology. Our findings could facilitate the development of nutraceuticals, pharmaceuticals, and functional foods from beach-cast seaweed. |
|
| dc.language |
eng |
|
| dc.rights |
info:eu-repo/semantics/openAccess |
|
| dc.title |
Comparative Study on the Effect of Phenolics and Their Antioxidant Potential of Freeze-Dried Australian Beach-Cast Seaweed Species upon Different Extraction Methodologies |
|
| dc.type |
info:eu-repo/semantics/article |
|