Vitamin E is the major contributor to the antioxidant capacity in lambs fed whole dried citrus pulp

The aim of this study was to investigate the effect of dietary whole dried citrus pulp (DCP) on the antioxidant status of lamb tissues. In total, 17 lambs were divided into two groups and fed for 56 days: a barley-based concentrate diet (CON – eight animals), or a concentrate-based diet including 35...

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Main Authors: G. Luciano, V. Roscini, S. Mattioli, S. Ruggeri, R.S. Gravador, A. Natalello, M. Lanza, A. De Angelis, A. Priolo
Format: Article
Language:English
Published: Elsevier 2017-01-01
Series:Animal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1751731116001683
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author G. Luciano
V. Roscini
S. Mattioli
S. Ruggeri
R.S. Gravador
A. Natalello
M. Lanza
A. De Angelis
A. Priolo
author_facet G. Luciano
V. Roscini
S. Mattioli
S. Ruggeri
R.S. Gravador
A. Natalello
M. Lanza
A. De Angelis
A. Priolo
author_sort G. Luciano
collection DOAJ
description The aim of this study was to investigate the effect of dietary whole dried citrus pulp (DCP) on the antioxidant status of lamb tissues. In total, 17 lambs were divided into two groups and fed for 56 days: a barley-based concentrate diet (CON – eight animals), or a concentrate-based diet including 35% DCP to partially replace barley (CIT – nine animals). The CIT diet contained a double concentration of phenolic compounds than the CON diet (7.9 v. 4.0 g/kg dry matter (DM), respectively), but had no effect (P>0.05) on the overall antioxidant capacity of the hydrophilic fraction of blood plasma, liver and muscle. The CIT diet contained clearly more α-tocopherol than the CON diet (45.7 v. 10.3 mg/kg DM), which could explain the higher concentration of α-tocopherol in liver, plasma and muscle (P<0.05). The dietary treatment had no effect on the extent of lipid peroxidation, measured as thiobarbituric acid and reactive substances assay (TBARS values) in the faeces, small intestine, liver, plasma and muscle. Nevertheless, when muscle homogenates were incubated in the presence of Fe3+/ascorbate to induce lipid peroxidation, the muscle from lambs fed DCP displayed lower TBARS values (P<0.01), which negatively correlated with the concentration of α-tocopherol in muscle. These results showed that feeding whole DCP to ruminants increases the antioxidant status of muscle through an increase in the deposition of α-tocopherol.
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spelling doaj.art-ef44166144a94823bbd3fe14695239242022-12-21T18:44:10ZengElsevierAnimal1751-73112017-01-01113411417Vitamin E is the major contributor to the antioxidant capacity in lambs fed whole dried citrus pulpG. Luciano0V. Roscini1S. Mattioli2S. Ruggeri3R.S. Gravador4A. Natalello5M. Lanza6A. De Angelis7A. Priolo8Dipartimento di Scienze Agrarie Alimentari e Ambientali, Università degli Studi di Perugia, Borgo XX Giugno 74, 06121, Perugia, ItalyDipartimento di Scienze Agrarie Alimentari e Ambientali, Università degli Studi di Perugia, Borgo XX Giugno 74, 06121, Perugia, ItalyDipartimento di Scienze Agrarie Alimentari e Ambientali, Università degli Studi di Perugia, Borgo XX Giugno 74, 06121, Perugia, ItalyDipartimento di Scienze Agrarie Alimentari e Ambientali, Università degli Studi di Perugia, Borgo XX Giugno 74, 06121, Perugia, ItalySchool of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Dublin, IrelandDipartimento di Agricoltura, Alimentazione e Ambiente, Università degli Studi di Catania, Via Valdisavoia 5, 95123, Catania, ItalyDipartimento di Agricoltura, Alimentazione e Ambiente, Università degli Studi di Catania, Via Valdisavoia 5, 95123, Catania, ItalyDipartimento di Agricoltura, Alimentazione e Ambiente, Università degli Studi di Catania, Via Valdisavoia 5, 95123, Catania, ItalyDipartimento di Agricoltura, Alimentazione e Ambiente, Università degli Studi di Catania, Via Valdisavoia 5, 95123, Catania, ItalyThe aim of this study was to investigate the effect of dietary whole dried citrus pulp (DCP) on the antioxidant status of lamb tissues. In total, 17 lambs were divided into two groups and fed for 56 days: a barley-based concentrate diet (CON – eight animals), or a concentrate-based diet including 35% DCP to partially replace barley (CIT – nine animals). The CIT diet contained a double concentration of phenolic compounds than the CON diet (7.9 v. 4.0 g/kg dry matter (DM), respectively), but had no effect (P>0.05) on the overall antioxidant capacity of the hydrophilic fraction of blood plasma, liver and muscle. The CIT diet contained clearly more α-tocopherol than the CON diet (45.7 v. 10.3 mg/kg DM), which could explain the higher concentration of α-tocopherol in liver, plasma and muscle (P<0.05). The dietary treatment had no effect on the extent of lipid peroxidation, measured as thiobarbituric acid and reactive substances assay (TBARS values) in the faeces, small intestine, liver, plasma and muscle. Nevertheless, when muscle homogenates were incubated in the presence of Fe3+/ascorbate to induce lipid peroxidation, the muscle from lambs fed DCP displayed lower TBARS values (P<0.01), which negatively correlated with the concentration of α-tocopherol in muscle. These results showed that feeding whole DCP to ruminants increases the antioxidant status of muscle through an increase in the deposition of α-tocopherol.http://www.sciencedirect.com/science/article/pii/S1751731116001683citrus pulpphenolic compoundsα-tocopherolruminantsantioxidant
spellingShingle G. Luciano
V. Roscini
S. Mattioli
S. Ruggeri
R.S. Gravador
A. Natalello
M. Lanza
A. De Angelis
A. Priolo
Vitamin E is the major contributor to the antioxidant capacity in lambs fed whole dried citrus pulp
Animal
citrus pulp
phenolic compounds
α-tocopherol
ruminants
antioxidant
title Vitamin E is the major contributor to the antioxidant capacity in lambs fed whole dried citrus pulp
title_full Vitamin E is the major contributor to the antioxidant capacity in lambs fed whole dried citrus pulp
title_fullStr Vitamin E is the major contributor to the antioxidant capacity in lambs fed whole dried citrus pulp
title_full_unstemmed Vitamin E is the major contributor to the antioxidant capacity in lambs fed whole dried citrus pulp
title_short Vitamin E is the major contributor to the antioxidant capacity in lambs fed whole dried citrus pulp
title_sort vitamin e is the major contributor to the antioxidant capacity in lambs fed whole dried citrus pulp
topic citrus pulp
phenolic compounds
α-tocopherol
ruminants
antioxidant
url http://www.sciencedirect.com/science/article/pii/S1751731116001683
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