FRACTIONATION AND SEPARATION OF PEPTIDES WITH ANTIOXIDANT AND ANGIOTENSIN-I CONVERTING ENZYME INHIBITORY ACTIVITIES FROM A QUINOA (Chenopodium quinoa Willd.) PROTEIN HYDROLYSATE

Authors

DOI:

https://doi.org/10.55251/jmbfs.2686

Keywords:

Angiotensin-I converting enzyme inhibition, antioxidant, fractionation, peptides, quinoa

Abstract

Quinoa proteins were enzymatically hydrolyzed using Neutrase at 50°C/120 min in order to study their antioxidant as well as the angiotensin-I converting enzyme (ACE) inhibitory activities. Subsequently, ultrafiltration (sequentially, 10 and 3 kDa cut-off membranes) and chromatographic techniques (adsorption and size-exclusion chromatography) were applied in order to purify and separate the active fractions. At the end of the separation process, higher values in antioxidant activity (AOA), 3,784.9 μmol TE/g and better ACE inhibitory activities (IC50, 39.1 μg/mL) were obtained which represented 2.3 and 7.7-fold increase compared to the initial hydrolysate, respectively. These findings showed the possible potential of quinoa peptides as a functional ingredient within the food industry.

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Published

2022-05-05

How to Cite

Cisneros-Yupanqui, M., Pedreschi, R., Aguilar-Galvez, A., Chirinos, R., & Campos, D. (2022). FRACTIONATION AND SEPARATION OF PEPTIDES WITH ANTIOXIDANT AND ANGIOTENSIN-I CONVERTING ENZYME INHIBITORY ACTIVITIES FROM A QUINOA (Chenopodium quinoa Willd.) PROTEIN HYDROLYSATE. Journal of Microbiology, Biotechnology and Food Sciences, e2686. https://doi.org/10.55251/jmbfs.2686

Issue

Section

Biotechnology
Received 2020-02-24
Accepted 2022-04-07
Online Published 2022-05-05