Biological conversion of red garlic (Allium sativum L) protein to bioactive peptides: ACE- DPP-IV inhibitory, and Techno-functional features

Biological conversion of red garlic (Allium sativum L) protein to bioactive peptides: ACE- DPP-IV inhibitory, and Techno-functional features

This study explores the impact of enzymolysis on the free amino acid content, techno-functional properties, free-radical scavenging, ACE, DPP-IV inhibition, iron-ion chelation and TBARS production in O/W emulsion stabilized with red garlic protein (RGP) and hydrolysates (RGPHs). The research reveals...

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Bibliographic Details
Main Authors: Zahra Akbarbaglu, Azin Nasrollah Zadeh, Mandana Tayefe, Roshanak Zolqadri, Atena Ramezani, Narges Mazloomi, Khashayar Sarabandi
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:Applied Food Research
Subjects:
Red-garlic peptides
ACE-inhibitory
Techno-functional
Enzymolysis
Nutrition
Online Access:http://www.sciencedirect.com/science/article/pii/S2772502224001616
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Summary:This study explores the impact of enzymolysis on the free amino acid content, techno-functional properties, free-radical scavenging, ACE, DPP-IV inhibition, iron-ion chelation and TBARS production in O/W emulsion stabilized with red garlic protein (RGP) and hydrolysates (RGPHs). The research reveals that enzymolysis time and pH significantly influence the amino acid content (antioxidant, hydrophobic, and essential ones), functional and biological quality of RGP/RGPHs. The study demonstrates that enzymolysis positively correlates with solubility (up to 90 %), health-promoting and antioxidant characteristics like DPPH (74.2 %), ABTS (81.3 %), OH (63.4 %), Reducing power (1.1 Abs700), NO (59.5 %), TAA (1.4 Abs695), ACE (71.9 %), DPP-IV (51.5 %) inhibitory, Fe2+ chelating (46.8 %) activity, and leading to reduced water/oil holding capacities, TBARS (from 0.61 to 0.38) value and lipid oxidation. However, extensive enzymatic hydrolysis (over 90 min) reduced emulsion and foaming abilities. On the other hand, the techno-functional properties of RGP and RGPHs exhibited a significant decline near the isoelectric point. This enhancement suggests that RGP could be used as a natural antioxidant with potential health benefits (antihypertensive and antidiabetic) in food and pharmaceutical formulations.
ISSN:2772-5022

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