Work

TOPSIS based comprehensive evaluation of the effect of drying methods on polyphenolic contents and associated antioxidant activities of Moringa oleifera leaves

Year: 2025

Type: article

Abstract: This study aimed to identify the most suitable drying method for the retention of phenolic content and associated antioxidant activities in Moringa oleifera leaves. The drying methods included: sun drying (SD), shade drying (SHD), oven drying (OD) and freeze drying (FD). The conventional maceration and ultrasonication were used to extract the phenolic components from the dried leaves. A comprehensive non-targeted mass spectrometry was used to determine the major phenolics in the extracts. The leaves dried under shade resulted in higher Total Phenolic Content (9.88 mg Gallic acid equivalent/g) and Total Tannin Content (4.96 mg Tannic acid equivalent/g) when extracted through maceration whereas ultrasonication resulted in higher content of Total Flavonoid Content in SD samples (10.31 mg quercetin equivalent/g). Ultrasonication resulted in higher antioxidant activities (67–70% scavenging) in SHD samples when determined using free radical scavenging assays. The non-targeted UHPLC analysis indicated higher relative quantities of flavonoids (12%), phenolic acid (60%) in SHD samples. The multivariate decision analysis ranked the SHD as the best method for release of higher contents of phenolics and antioxidant activities depending on closeness coefficient.

Source: Discover Food

DOI: 10.1007/s44187-025-00407-5

Authors: Rohit, Nayan Rishi, K. M. Manju, Sachin, Gunjan Goel

Institutions: Central University of Haryana, Kurukshetra University

Language: English

Topic: Moringa oleifera research and applications

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $1,590