Identification of hydrophilic phenolic compounds derived from palm oil products

Fadzlina Abdullah, . and Nur Aainaa Syahirah Ramli, . Identification of hydrophilic phenolic compounds derived from palm oil products. pp. 258-270. ISSN 2020

Palm oil is a source of water-soluble phenolic compounds which have been proven to exhibit antioxidant effects. Phenolic compounds have great potential in the development of health-beneficial foods feeds cosmetic and pharmaceutical products. In this study hydrophilic phenolic compounds were extracted from various palm oil products including crude palm oil (CPO) refined palm oil (RPO) refined palm olein (RPOo) crude palm kernel oil (CPKO) refined palm kernel oil (RPKO) and refined palm kernel olein (RPKOo). A simple reversed-phase high performance liquid chromatography (HPLC) equipped with ultra violet (UV)visible detector was used to identify the phenolic compounds. The phenolic acids identified were benzoic acid derivatives; gallic protocatechuic p-hydroxybenzoic vanillic and syringic acids and cinnamic acid derivatives; caffeic coumaric and ferulic acids. Benzoic acid derivatives exhibited higher concentration compared to cinnamic acid derivatives with p-hydroxybenzoic acid being the predominant acid present in all sample extracts. The results suggested the presence of hydrophilic phenolics with p-hydroxybenzoic level in palm oil products; CPO (1901.69 mg kg-) RPO (19.13 mg kg-) RPOo (7.87 mg kg-) CPKO (1701.70 mg kg-) RPKO (5.01 mg kg-) and RPKOo (nil). The profiling of phenolic compounds in the palm oil products would provide basic information and understanding of their bioactivities. Besides the potential of phenolics from palm oil products extracts as antioxidants can be further evaluated.

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Abstract

Palm oil is a source of water-soluble phenolic compounds which have been proven to exhibit antioxidant effects. Phenolic compounds have great potential in the development of health-beneficial foods feeds cosmetic and pharmaceutical products. In this study hydrophilic phenolic compounds were extracted from various palm oil products including crude palm oil (CPO) refined palm oil (RPO) refined palm olein (RPOo) crude palm kernel oil (CPKO) refined palm kernel oil (RPKO) and refined palm kernel olein (RPKOo). A simple reversed-phase high performance liquid chromatography (HPLC) equipped with ultra violet (UV)visible detector was used to identify the phenolic compounds. The phenolic acids identified were benzoic acid derivatives; gallic protocatechuic p-hydroxybenzoic vanillic and syringic acids and cinnamic acid derivatives; caffeic coumaric and ferulic acids. Benzoic acid derivatives exhibited higher concentration compared to cinnamic acid derivatives with p-hydroxybenzoic acid being the predominant acid present in all sample extracts. The results suggested the presence of hydrophilic phenolics with p-hydroxybenzoic level in palm oil products; CPO (1901.69 mg kg-) RPO (19.13 mg kg-) RPOo (7.87 mg kg-) CPKO (1701.70 mg kg-) RPKO (5.01 mg kg-) and RPKOo (nil). The profiling of phenolic compounds in the palm oil products would provide basic information and understanding of their bioactivities. Besides the potential of phenolics from palm oil products extracts as antioxidants can be further evaluated.

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Item Type:	Article
AGROVOC Term:	Phenolic compounds
AGROVOC Term:	Extraction
AGROVOC Term:	High performance liquid chromatography
AGROVOC Term:	Palm oils
AGROVOC Term:	Palm kernel oil
AGROVOC Term:	Olein
AGROVOC Term:	Phenolic acids
AGROVOC Term:	Benzoic acid
AGROVOC Term:	Gallic acid
AGROVOC Term:	Cinnamic acids
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/9171

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