Journal
ANTIOXIDANTS
Volume 11, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/antiox11061205
Keywords
antioxidant capacity; antioxidants; plant extract; spectrophotometric technique; cyclic voltammetry
Funding
- Al Bilad Bank Scholarly Chair for Food Security in Saudi Arabia
- King Faisal University, Saudi Arabia [CHAIR69]
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In recent years, there has been a growing interest in the applications of plant and fruit extracts, leading to the development of new analytical techniques for identifying their properties. The antioxidant capacity is an important property for these extracts, and electrochemical methodologies are emerging as alternative tools for quantifying this particular property.
In recent years, the growing research interests in the applications of plant and fruit extracts (synthetic/stabilization materials for the nanomaterials, medicinal applications, functional foods, and nutraceuticals) have led to the development of new analytical techniques to be utilized for identifying numerous properties of these extracts. One of the main properties essential for the applicability of these plant extracts is the antioxidant capacity (AOC) that is conventionally determined by spectrophotometric techniques. Nowadays, electrochemical methodologies are emerging as alternative tools for quantifying this particular property of the extract. These methodologies address numerous drawbacks of the conventional spectroscopic approach, such as the utilization of expensive and hazardous solvents, extensive sample pre-treatment requirements, long reaction times, low sensitivity, etc. The electrochemical methodologies discussed in this review include cyclic voltammetry (CV), square wave voltammetry (SWV), differential pulse voltammetry (DPV), and chronoamperometry (CAP). This review presents a critical comparison between both the conventional and electrochemical approaches for the quantification of the parameter of AOC and discusses the numerous applications of the obtained bioextracts based on the AOC parameter.
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