Kopec, Wieslaw

Link to this page

Authority KeyName Variants
a2148b7f-a449-46ed-8c39-0334b580e06b
  • Kopec, Wieslaw (2)
Projects

Author's Bibliography

Improvement of antioxidative activity of broiler muscles after dietary modulation with selenium and methionine

Korzeniowska, Malgorzata; Kroliczewska, Bozena; Kopec, Wieslaw; Kirovski, Danijela; Rajewska, Aleksandra

(Beograd : Fakultet veterinarske medicine, 2024)

TY  - JOUR
AU  - Korzeniowska, Malgorzata
AU  - Kroliczewska, Bozena
AU  - Kopec, Wieslaw
AU  - Kirovski, Danijela
AU  - Rajewska, Aleksandra
PY  - 2024
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/3802
AB  - The objective of the study was to compare the antioxidative capacity of broiler chicken
breast and leg muscles after dietary modulation with selenium (Se) and methionine
(Met). Free radical scavenging (ABTS, DPPH) and iron reduction (FRAP) activities
were determined as the total antioxidative potential (TEAC), as well the enzyme activity
of catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GPx), in
relation to concentrations of lipid peroxidation end products (TBARS). Analyses were
performed on breast m. pectoralis superfi cialis and profundus individually and together.
The studied leg muscles included biceps femoris, gastrocnemicus, iliotiobialis, peroneus longus,
sartorius, semimembranosus, semitendinosus and all leg muscles together. Flex broiler chickens
were fed diets supplemented with 6.7, 8.2, 9.7 and 11.2 g DL-methionine/kg feed and
Se as sodium selenite and selenized yeast at 0.26, 0.38 and 0.50 mg Se/kg. Greater
TEAC and enzyme activities were observed in leg than in breast muscles. Selenium
did not change TEAC in muscles sets, but improved antiradical capacity in the pectoralis
major and minor, sartorius and biceps femoris. The highest level of methionine increased
TEAC in individual leg muscles. Selenium and methionine at the highest concentrations
increased SOD activity in the entire group and individual muscles, while Se raised GPx
activity. In conclusion, the diet supplementation with selenium and high concentrations
of methionine had a greater impact on the antioxidative potential of individual than
the whole set of chicken breast and leg muscles. The positive effect of the studied diet
modulation could raise the quality and extend the shelf-life of fresh chicken meat.
PB  - Beograd : Fakultet veterinarske medicine
T2  - Acta Veterinaria
T1  - Improvement of antioxidative activity of broiler muscles after dietary modulation with selenium and methionine
VL  - 74
IS  - 1
SP  - 71
EP  - 90
DO  - 10.2478/acve-2024-0006
ER  - 
@article{
author = "Korzeniowska, Malgorzata and Kroliczewska, Bozena and Kopec, Wieslaw and Kirovski, Danijela and Rajewska, Aleksandra",
year = "2024",
abstract = "The objective of the study was to compare the antioxidative capacity of broiler chicken
breast and leg muscles after dietary modulation with selenium (Se) and methionine
(Met). Free radical scavenging (ABTS, DPPH) and iron reduction (FRAP) activities
were determined as the total antioxidative potential (TEAC), as well the enzyme activity
of catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GPx), in
relation to concentrations of lipid peroxidation end products (TBARS). Analyses were
performed on breast m. pectoralis superfi cialis and profundus individually and together.
The studied leg muscles included biceps femoris, gastrocnemicus, iliotiobialis, peroneus longus,
sartorius, semimembranosus, semitendinosus and all leg muscles together. Flex broiler chickens
were fed diets supplemented with 6.7, 8.2, 9.7 and 11.2 g DL-methionine/kg feed and
Se as sodium selenite and selenized yeast at 0.26, 0.38 and 0.50 mg Se/kg. Greater
TEAC and enzyme activities were observed in leg than in breast muscles. Selenium
did not change TEAC in muscles sets, but improved antiradical capacity in the pectoralis
major and minor, sartorius and biceps femoris. The highest level of methionine increased
TEAC in individual leg muscles. Selenium and methionine at the highest concentrations
increased SOD activity in the entire group and individual muscles, while Se raised GPx
activity. In conclusion, the diet supplementation with selenium and high concentrations
of methionine had a greater impact on the antioxidative potential of individual than
the whole set of chicken breast and leg muscles. The positive effect of the studied diet
modulation could raise the quality and extend the shelf-life of fresh chicken meat.",
publisher = "Beograd : Fakultet veterinarske medicine",
journal = "Acta Veterinaria",
title = "Improvement of antioxidative activity of broiler muscles after dietary modulation with selenium and methionine",
volume = "74",
number = "1",
pages = "71-90",
doi = "10.2478/acve-2024-0006"
}
Korzeniowska, M., Kroliczewska, B., Kopec, W., Kirovski, D.,& Rajewska, A.. (2024). Improvement of antioxidative activity of broiler muscles after dietary modulation with selenium and methionine. in Acta Veterinaria
Beograd : Fakultet veterinarske medicine., 74(1), 71-90.
https://doi.org/10.2478/acve-2024-0006
Korzeniowska M, Kroliczewska B, Kopec W, Kirovski D, Rajewska A. Improvement of antioxidative activity of broiler muscles after dietary modulation with selenium and methionine. in Acta Veterinaria. 2024;74(1):71-90.
doi:10.2478/acve-2024-0006 .
Korzeniowska, Malgorzata, Kroliczewska, Bozena, Kopec, Wieslaw, Kirovski, Danijela, Rajewska, Aleksandra, "Improvement of antioxidative activity of broiler muscles after dietary modulation with selenium and methionine" in Acta Veterinaria, 74, no. 1 (2024):71-90,
https://doi.org/10.2478/acve-2024-0006 . .

Egg White Cystatin-A Review

Kupaj, Patryk; Korus, Maciej; Korzeniowska Malgorzata; Kopec, Wieslaw

(2021)

TY  - JOUR
AU  - Kupaj, Patryk
AU  - Korus, Maciej
AU  - Korzeniowska Malgorzata
AU  - Kopec, Wieslaw
PY  - 2021
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/2401
AB  - Hen eggs are widely used, not only for human consumption, but also as an important material in food production and in pharmaceutical and cosmetics industry. Cystatin is a biologically active component of egg white, mostly used as an inhibitor of papain-like cysteine proteases. It was isolated from chicken egg white and has later been used in the nomenclature of structurally and functionally related proteins. Cystatins from animals, including mouse, rat, dog, cow and chicken egg white have been isolated and recently used in foodstuffs and drug administration. Cystatin has found its place and use in medicine due to its antimicrobial, antiviral and insecticidal effects, for the prevention of cerebral hemorrhage and control of cancer cell metastasis.
AB  - Belance jajeta je u širokoj upotrebi i to ne samo za ishranu ljudi već i kao sirovina za prehrambenu industriju, farmaceutsku i kozmetičarsku industriju. Cistatin je biološki aktivna komponenta belanca jaja i većinom se koristi kao inhibitor cistein proteaza nalik na papain. Cistatin je izolovan iz kokošjih jaja i kasnije upotrebljen za formiranje nomenklature strukturno i funkcionalno sličnih proteina. Cistatini poreklom od životinja, uključujući i miševe, pacove, pse, goveda i iz belanaca kokošjih jaja, izolovani su i nedavno su upotrebljeni za ishranu ljudi i za farmaceutsku industriju. Cistatin na našao svoju upotrebu i upotrebu u medicini zahvaljujući antibakterijskim, antivirusnim i insekticidnim efektima i to u cilju prevencije cerebralnih hemoragija i za kontrolu metastaza kod tumora.
T2  - Acta Veterinaria-Beograd
T1  - Egg White Cystatin-A Review
T1  - Cistatin belanca jaja – pregled
VL  - 70
IS  - 4
SP  - 401
EP  - 422
DO  - 10.2478/acve-2020-0031
ER  - 
@article{
author = "Kupaj, Patryk and Korus, Maciej and Korzeniowska Malgorzata and Kopec, Wieslaw",
year = "2021",
abstract = "Hen eggs are widely used, not only for human consumption, but also as an important material in food production and in pharmaceutical and cosmetics industry. Cystatin is a biologically active component of egg white, mostly used as an inhibitor of papain-like cysteine proteases. It was isolated from chicken egg white and has later been used in the nomenclature of structurally and functionally related proteins. Cystatins from animals, including mouse, rat, dog, cow and chicken egg white have been isolated and recently used in foodstuffs and drug administration. Cystatin has found its place and use in medicine due to its antimicrobial, antiviral and insecticidal effects, for the prevention of cerebral hemorrhage and control of cancer cell metastasis., Belance jajeta je u širokoj upotrebi i to ne samo za ishranu ljudi već i kao sirovina za prehrambenu industriju, farmaceutsku i kozmetičarsku industriju. Cistatin je biološki aktivna komponenta belanca jaja i većinom se koristi kao inhibitor cistein proteaza nalik na papain. Cistatin je izolovan iz kokošjih jaja i kasnije upotrebljen za formiranje nomenklature strukturno i funkcionalno sličnih proteina. Cistatini poreklom od životinja, uključujući i miševe, pacove, pse, goveda i iz belanaca kokošjih jaja, izolovani su i nedavno su upotrebljeni za ishranu ljudi i za farmaceutsku industriju. Cistatin na našao svoju upotrebu i upotrebu u medicini zahvaljujući antibakterijskim, antivirusnim i insekticidnim efektima i to u cilju prevencije cerebralnih hemoragija i za kontrolu metastaza kod tumora.",
journal = "Acta Veterinaria-Beograd",
title = "Egg White Cystatin-A Review, Cistatin belanca jaja – pregled",
volume = "70",
number = "4",
pages = "401-422",
doi = "10.2478/acve-2020-0031"
}
Kupaj, P., Korus, M., Korzeniowska Malgorzata,& Kopec, W.. (2021). Egg White Cystatin-A Review. in Acta Veterinaria-Beograd, 70(4), 401-422.
https://doi.org/10.2478/acve-2020-0031
Kupaj P, Korus M, Korzeniowska Malgorzata, Kopec W. Egg White Cystatin-A Review. in Acta Veterinaria-Beograd. 2021;70(4):401-422.
doi:10.2478/acve-2020-0031 .
Kupaj, Patryk, Korus, Maciej, Korzeniowska Malgorzata, Kopec, Wieslaw, "Egg White Cystatin-A Review" in Acta Veterinaria-Beograd, 70, no. 4 (2021):401-422,
https://doi.org/10.2478/acve-2020-0031 . .
5
5