scholarly journals Purification and Characterization of Superoxide Dismutase Enzyme from Punica granatum L.

Author(s):  
Caglar Ozdemir ◽  
Nuri Gulesci ◽  
Ramazan Bilgin

Superoxide dismutase (SOD) constitutes a very important antioxidant defense against oxidative stress in the body. SOD is found aplenty in many organisms, from microorganisms to plants and animals. Pomegranate (Punica granatum L.) peels and fruits have been used in traditional medicine. In this study, SOD (E.C 1.15.1.1) was purified from Punica granatum L. For this purpose, Punica granatum L. was homogenized centrifuged, fractioned with ammonium sulfate to precipitate, and then DEAE chromatography separation was applied.  Punica granatum L. was purified 16.60-fold. SOD enzyme-specific activity was found as 166 U/mg protein.

2017 ◽  
Vol 42 (6) ◽  
Author(s):  
Raksmont Ubonbal ◽  
Saijai Porsoongnoen ◽  
Jureerut Daduang ◽  
Sompong Klaynongsruang ◽  
Sakda Daduang

AbstractIntroduction:The tropical plant amylases involved in the fruit ripening stage is outstanding for their high activities in converting starch to sugars within a short period at high temperatures over 40°C.Methods:The α amylase iso-enzymes from Ok-Rong mango (Results:The enzyme was purified 105-fold with a final specific activity of 59.27 U mgConclusion:Two α amylase iso-enzymes were classified as members of the low-pI group of amylases with identical structure, properties and functions. They are mesophilic with high possibilities for application for many purposes.


2016 ◽  
Vol 18 (2(66)) ◽  
pp. 52-59
Author(s):  
B.V. Gutyj ◽  
Y. Lavryshyn ◽  
V. Binkevych ◽  
O. Binkevych ◽  
О. Paladischuk ◽  
...  

The article contains the research results of the effect of cadmium chloride on the indexes of enzyme and nonenzyme systems of  antioxidant defense system in young cattle, such as the activity of catalase, superoxide dismutase, glutathione peroxidase, glutathione levels of vitamins A and E. It is established that feeding calves at a dose of toxicant 0.04 mg / kg activity of catalase, superoxide dismutase, glutathione peroxidase, glutathione levels of vitamins A and E in the blood of experimental animals decreased throughout the experiment. The lowest indicators of antioxidant in the blood of young cattle is set on the twenty -fourth day of the experiment, which is associated with increased activation of lipid peroxidation and the balance between antioxidant system and lipid peroxidation intensity. Given the cadmium load of young cattle it is used a new integrated drug with antioxidant action «Metisevit», which includes metifen, sodium selenite and vitamin E wich is founded as stimulating effects on the activity of antioxidant protection. In particular,it is established probable increase in activity of catalase, superoxide dismutase, glutathione peroxidase, glutathione levels, vitamin A and vitamin E in the blood of young cattle, which has performed cadmium stress. These changes occur through comprehensive action components of the drug «Metisevit» that leads to the normalization of metabolic processes and free radical in the body of the bull. The results of the research indicate antioxidant drug «Metisevit» in the application of its young cattle and the validity of his administration to improve the body's antioxidant status of chronic cadmium toxicosis.


2013 ◽  
Vol 10 (3) ◽  
pp. 844-853
Author(s):  
Baghdad Science Journal

Endoglucanase produced from Aspergillus flavus was purified by several steps including precipitation with 25 % ammonium sulphate followed by Ion –exchange chromatography, the obtained specific activity was 377.35 U/ mg protein, with a yield of 51.32 % .This step was followed by gel filtration chromatography (Sepharose -6B), when a value of specific activity was 400 U/ mg protein, with a yield of 48 %. Certain properties of this purified enzyme were investigated, the optimum pH of activity was 7 and the pH of its stability was 4.5, while the temperature stability was 40 °C for 60 min. The enzyme retained 100% of its original activity after incubation at 40 °C for 60 min; the optimum temperature for enzyme activity was 40 °C.


2016 ◽  
Vol 36 (1) ◽  
pp. 132-139 ◽  
Author(s):  
Illana Louise Pereira de MELO ◽  
Eliane Bonifácio Teixeira de CARVALHO ◽  
Ana Mara de Oliveira e SILVA ◽  
Luciana Tedesco YOSHIME ◽  
José Augusto Gasparotto SATTLER ◽  
...  

2020 ◽  
Vol 14 ◽  
pp. 100390
Author(s):  
Ghassan Adnan Naeem ◽  
Rasim Farraj Muslim ◽  
Muwafaq Ayesh Rabeea ◽  
Mustafa Nadhim Owaid ◽  
Nabeel Mohammed Abd-Alghafour

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