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Article

Total Phenol Content and Antioxidant Activity of Different Celta Pig Carcass Locations as Affected by the Finishing Diet (Chestnuts or Commercial Feed)

1
Centro Tecnológico de la Carne de Galicia, Rúa Galicia Nº 4, Parque Tecnológico de Galicia, San Cibrao das Viñas, 32900 Ourense, Spain
2
Área de Tecnología de los Alimentos, Facultad de Ciencias de Ourense, Universidad de Vigo, 32004 Ourense, Spain
*
Author to whom correspondence should be addressed.
Antioxidants 2021, 10(1), 5; https://doi.org/10.3390/antiox10010005
Received: 17 November 2020 / Revised: 20 December 2020 / Accepted: 21 December 2020 / Published: 23 December 2020
The objective of this research was to evaluate the total phenol content, total flavonoids, and antioxidant activity of chestnuts (Castanea sativa Mill.) and commercial feed employed in the finishing diet of the Celta pig breed and analyze the effect of the feeding (chestnuts vs. commercial feed) in the finishing diet on total phenol content and antioxidant activity of Longissimus thoracis et lumborum, Psoas major, and Biceps femoris muscles and liver of the Celta pig breed. The antioxidant activity of the feed and animal tissue was investigated using three antioxidant methods (2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, 2-2′-Azino-di-[3-ethylbenzthiazoline sulfonate] (ABTS) radical scavenging activity, and ferric reducing antioxidant power (FRAP) assay). The determination of the total phenol content and total flavonoids showed that chestnut had a significantly lower concentration than commercial feed in these compounds (130.00 vs. 312.89 mg gallic acid equivalents/100 g fresh weight and 8.58 vs. 32.18 mg catechin equivalents/100 g fresh weight, respectively). However, the results displayed that chestnuts had a higher antioxidant activity when compared with the commercial feed through the DPPH and ABTS methods (1152.42 vs. 957.33 µg Trolox equivalents/g fresh weight, and 9379.74 vs. 7613.44 µg Trolox equivalents/g fresh weight, for DPPH and ABTS assay, respectively), while the antioxidant activity measured by the FRAP assay turned out to show higher values for commercial feed (1777.49 and 1946.09 µmol Fe2+/100 fresh weight for chestnut and commercial feed, respectively), although significant differences were only found in the ABTS assay. On the other hand, the present study found that chestnut significantly reduces the total phenol content and declines the antioxidant activity of Longissimus thoracis et lumborum, Psoas major, and Biceps femoris muscles and liver of the Celta pig breed. Finally, it has been found that liver is the location that has the best antioxidant characteristics compared to any muscle, regardless of diet utilized. View Full-Text
Keywords: Celta pig breed; animal diet; chestnut; commercial feed; muscle tissue; liver; total phenol content (TPC); total flavonoids; antioxidant activity Celta pig breed; animal diet; chestnut; commercial feed; muscle tissue; liver; total phenol content (TPC); total flavonoids; antioxidant activity
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MDPI and ACS Style

Echegaray, N.; Munekata, P.E.S.; Centeno, J.A.; Domínguez, R.; Pateiro, M.; Carballo, J.; Lorenzo, J.M. Total Phenol Content and Antioxidant Activity of Different Celta Pig Carcass Locations as Affected by the Finishing Diet (Chestnuts or Commercial Feed). Antioxidants 2021, 10, 5. https://doi.org/10.3390/antiox10010005

AMA Style

Echegaray N, Munekata PES, Centeno JA, Domínguez R, Pateiro M, Carballo J, Lorenzo JM. Total Phenol Content and Antioxidant Activity of Different Celta Pig Carcass Locations as Affected by the Finishing Diet (Chestnuts or Commercial Feed). Antioxidants. 2021; 10(1):5. https://doi.org/10.3390/antiox10010005

Chicago/Turabian Style

Echegaray, Noemí, Paulo E.S. Munekata, Juan A. Centeno, Rubén Domínguez, Mirian Pateiro, Javier Carballo, and José M. Lorenzo 2021. "Total Phenol Content and Antioxidant Activity of Different Celta Pig Carcass Locations as Affected by the Finishing Diet (Chestnuts or Commercial Feed)" Antioxidants 10, no. 1: 5. https://doi.org/10.3390/antiox10010005

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