Extraction of phenolic compounds: A review

• Published in: Current research in food science Vol. 4; pp. 200 - 214
• Main Authors: Alara, Oluwaseun Ruth, Abdurahman, Nour Hamid, Ukaegbu, Chinonso Ishamel
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.01.2021; Elsevier
• Subjects: Assisted extraction; Conventional techniques; Extraction; Flavonoids; food science; glycosides; Liquid-liquid extraction; Phenolic compounds; Polyphenols; Review; Secondary metabolites; Solid-liquid extraction; Unconventional techniques; Liquid-liquid extraction; Flavonoids; Secondary metabolites; Unconventional techniques; Conventional techniques; Polyphenols; Assisted extraction; Extraction; Phenolic compounds; Solid-liquid extraction
• ISSN: 2665-9271; 2665-9271
• DOI: 10.1016/j.crfs.2021.03.011

Phenolic compounds are parts of secondary metabolites mostly found in plant species with enormous structural diversities. They can exist as glycosides or aglycones; matrix or free-bound compounds; and comprising mostly polymerized or monomer structures. Additionally, these compounds are not universally dispensed within plants with varied stability. This has contributed to challenging extraction processes; implying that employing a single step or inappropriate extraction technique might change the recovery of phenolic components from the plant samples. Hence, it is important to select an appropriate extraction method so as to recover the targeted phenolic compounds. This is will helps to recover substantial yields from the sample matrix. Therefore, this review mainly focuses on the phenolic compounds and several methods of extraction that are used to obtaining them from plant materials. These extraction methods includes both conventional and unconventional techniques. [Display omitted] •Phenolic compounds from natural sources.•Methods of extracting phenolic compounds.•Selection of an appropriate extraction method to recover the targeted phenolic compounds from plant materials.