NDLI: Amaranth Peptides from Simulated Gastrointestinal Digestion: Antioxidant Activity Against Reactive Species

Content Provider	Springer Nature Link
Author	Delgado, María C. Orsini Gallea, Mónica Añón, María C. Tironi, Valeria A.
Copyright Year	2015
Abstract	We evaluated the capacity of simulated gastrointestinal digests or alcalase hydrolysates of protein isolates from amaranth to scavenge diverse physiologically relevant reactive species. The more active hydrolysate was obtained with the former method. Moreover, a prior alcalase treatment of the isolate followed by the same simulated gastrointestinal digestion did not improve the antioxidant capacity in any of the assays performed and even produced a negative effect under some conditions. Gastrointestinal digestion produced a strong increment in the scavenging capacity against peroxyl radicals (ORAC assay), hydroxyl radicals (ESR-OH assay), and peroxynitrites; thus decreasing the IC$_{50}$ values to approximately 20, 25, and 20 %, respectively, of the levels attained with the nonhydrolyzed proteins. Metal chelation (HORAC assay) also enhanced respect to isolate levels, but to a lesser extent (decreasing IC$_{50}$ values to only 50 %). The nitric-oxide– and superoxide-scavenging capacities of the digests were not relevant with respect to the methodologies used. The gastrointestinal digests from amaranth proteins acted against reactive species by different mechanisms, thus indicating the protein isolate to be a potential polyfunctional antioxidant ingredient.
Starting Page	27
Ending Page	34
Page Count	8
File Format	PDF
ISSN	09219668
Journal	Plant Foods for Human Nutrition
Volume Number	70
Issue Number	1
e-ISSN	15739104
Language	English
Publisher	Springer US
Publisher Date	2015-01-11
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Amaranth proteins and peptides Gastrointestinal digestion Antioxidant activity Reactive oxygen and nitrogen species Food Science Chemistry/Food Science Nutrition Ecology Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Chemistry Food Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Amaranth peptides from simulated gastrointestinal digestion: antioxidant activity against reactive species.

Antithrombotic and Antioxidant Activity of Amaranth Hydrolysate Obtained by Activation of an Endogenous Protease

Antioxidant and Cytotoxic Activities of Aphanes arvensis Extracts

Inhibition of Iron Induced Lipid Peroxidation and Antioxidant Activity of Indian Spices and Acacia In Vitro

Increasing the Antioxidant Activity, Total Phenolic and Flavonoid Contents by Optimizing the Germination Conditions of Amaranth Seeds

Antithrombotic Effects of Amaranthus hypochondriacus Proteins in Rats

Antioxidant Properties and Preliminary Evaluation of Phytochemical Composition of Different Anatomical Parts of Amaranth

In vitro Gastrointestinal Digestion of Glabrous Canaryseed Proteins as Affected by Variety and Thermal Treatment

Amelioration of Hexachlorocyclohexane-Induced Oxidative Stress by Amaranth Leaves in Rats

Amaranth Peptides from Simulated Gastrointestinal Digestion: Antioxidant Activity Against Reactive Species

Similar Documents

Amaranth peptides from simulated gastrointestinal digestion: antioxidant activity against reactive species.

Antithrombotic and Antioxidant Activity of Amaranth Hydrolysate Obtained by Activation of an Endogenous Protease

Antioxidant and Cytotoxic Activities of Aphanes arvensis Extracts

Inhibition of Iron Induced Lipid Peroxidation and Antioxidant Activity of Indian Spices and Acacia In Vitro

Increasing the Antioxidant Activity, Total Phenolic and Flavonoid Contents by Optimizing the Germination Conditions of Amaranth Seeds

Antithrombotic Effects of Amaranthus hypochondriacus Proteins in Rats

Antioxidant Properties and Preliminary Evaluation of Phytochemical Composition of Different Anatomical Parts of Amaranth

In vitro Gastrointestinal Digestion of Glabrous Canaryseed Proteins as Affected by Variety and Thermal Treatment

Amelioration of Hexachlorocyclohexane-Induced Oxidative Stress by Amaranth Leaves in Rats

Amaranth Peptides from Simulated Gastrointestinal Digestion: Antioxidant Activity Against Reactive Species