Antioxidant and prebiotic gut-microbiota effects of dietary phenolic compounds in Etlingera elatior extracts


Citation

Phuriyakorn S., . and Seechamnanturakit V., . and Wichienchot S., . Antioxidant and prebiotic gut-microbiota effects of dietary phenolic compounds in Etlingera elatior extracts. pp. 1751-1761. ISSN 0116-6514

Abstract

Etlingera elatior commonly found in South East Asia is known to have high antioxidant activities. The purposes of the present work were to investigate the effects of different solvents on the extraction of total phenolic (TPC) and flavonoid compounds (FC) of E. elatior inflorescences and to test their antioxidant and prebiotic effects. The highest yield (14.12) of E. elatior extract was obtained from a 50 ethanol extract with the highest TPC and flavonoids contents being observed in 70 and 95 ethanol extracts. The ferric reducing antioxidant power (FRAP) 2 2-diphenyl-1-picrylhydrazyl (DPPH) 2 2'-azino-bis(3-ethylbenzothiazoline-6- sulphonic acid (ABTS) and iron chelating activities were also investigated. The results showed that the 70 ethanol extract had high values for DPPH FRAP and ABTS whereas the 95 ethanol extract had higher iron chelating activities. The E. elatior TPC showed a prebiotic-like effect by significantly decreasing the populations of harmful bacteria through the production of short chain fatty acids. The present work demonstrated that E. elatior has the potentials for applications as a natural functional ingredient for the modulation of gut microbiota.


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Abstract

Etlingera elatior commonly found in South East Asia is known to have high antioxidant activities. The purposes of the present work were to investigate the effects of different solvents on the extraction of total phenolic (TPC) and flavonoid compounds (FC) of E. elatior inflorescences and to test their antioxidant and prebiotic effects. The highest yield (14.12) of E. elatior extract was obtained from a 50 ethanol extract with the highest TPC and flavonoids contents being observed in 70 and 95 ethanol extracts. The ferric reducing antioxidant power (FRAP) 2 2-diphenyl-1-picrylhydrazyl (DPPH) 2 2'-azino-bis(3-ethylbenzothiazoline-6- sulphonic acid (ABTS) and iron chelating activities were also investigated. The results showed that the 70 ethanol extract had high values for DPPH FRAP and ABTS whereas the 95 ethanol extract had higher iron chelating activities. The E. elatior TPC showed a prebiotic-like effect by significantly decreasing the populations of harmful bacteria through the production of short chain fatty acids. The present work demonstrated that E. elatior has the potentials for applications as a natural functional ingredient for the modulation of gut microbiota.

Additional Metadata

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Item Type: Article
AGROVOC Term: Ginger
AGROVOC Term: Zingiberaceae
AGROVOC Term: Extraction in chemical analysis
AGROVOC Term: Solvents
AGROVOC Term: Plant extracts
AGROVOC Term: Phenolic compounds
AGROVOC Term: Flavonoids
AGROVOC Term: Ethanol
AGROVOC Term: Antioxidants
AGROVOC Term: Dietary components
Depositing User: Mr. AFANDI ABDUL MALEK
Last Modified: 24 Apr 2025 00:54
URI: http://webagris.upm.edu.my/id/eprint/8757

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