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Co-Ingestion of Natal Plums () and Marula Nuts () in a Snack Bar and Its Effect on Phenolic Compounds and Bioactivities

Overview
Journal Molecules
Publisher MDPI
Specialty Biology
Date 2022 Jan 11
PMID 35011541
Authors
Affiliations
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Abstract

This study investigated the effect of co-ingesting Natal plums () and Marula nuts () on the bioaccessibility and uptake of anthocyanins, antioxidant capacity, and the ability to inhibit α-glucosidase. A Natal plum-Marula nut bar was made by mixing the raw nuts and the fruit pulp in a ratio 1:1 (/). The cyanidin-3--sambubioside (Cy-3-Sa) and cyanidin-3--glucoside content (Cy-3-G) were quantified using the ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UHPLC/Q-TOF-MS). Inclusion of Natal plum in the Marula nut bar increased the Cy-3-Sa, Cy-3-G content, antioxidants capacity and α-glucosidase inhibition compared to ingesting Marula nut separately at the internal phase. Adding Natal plum to the Marula nut bar increased bioaccessibility of Cy-3-Sa, Cy-3-G, quercetin, coumaric acid, syringic acid and ferulic acid to 80.2% and 71.9%, 98.7%, 95.2%, 51.9% and 89.3%, respectively, compared to ingesting the Natal plum fruit or nut separately.

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