bioactivities, such as antibacterial, antifungal, antiviral, analgesic, and sedative activities [ 9 – 12 ]. The antioxidant activity and α-glucosidase inhibitory effects of the five sub-fractions of E. densa crude extract were recently studied, and the ethyl
Introduction The use of natural antioxidants, especially those derived from plants, was found to successfully combat stress-related diseases. Tea, whether green or black, is widely known for its valuable health-promoting effects ( Annunziata et al
Ahmad , P. , Jaleel , C. A. , Salem , M. A. , Nabi , G. , Sharma , S. ( 2010 ) Roles of enzymatic and non enzymatic antioxidants in plants during abiotic stress . Crit. Rev. Biotechnol. 30 , 161 – 175 .
distribution of some plum species worldwide. Most plum species were distributed to Greece and other European countries from Anatolia, and plum cultivation was started by early colonists in America [ 4 – 6 ].
Fruits with their antioxidant contents and
adenomas and hepatocellular carcinoma [ 9, 13 ]. Moreover, high AAS rate induces oxidative stress in liver by alteration of the balance between reactive oxygen species (ROS) production and antioxidant defenses [ 14 ]. Oxidative stress occurs when the
use of natural resources and energy ( Yüzbaşıoğlu, 2018 ). Phenolic compounds are secondary metabolites produced by plants during growth and reproduction, as well as in response to a number of biotic and abiotic stresses. Phenols having antioxidant
consumers is regarded as a rich antioxidant vegetable, accompanied with some other bioactive compounds such as betalains, ascorbic acid, carotenoids, phenolic acids, and flavonoids ( Zin et al., 2020 ). Betalains are the main compounds associated with the
High-density polyethylene, its composites with hydrophilic/hydrophobic silica and the antioxidant BHT (butylated hydroxytoluene)
were studied using the thermogravimetric analysis. It has been shown that filling with silica as well as introducing BHT into
the unfilled polymer increases the thermal-oxidative stability of the polymer. Immobilized BHT is inactive and it suppresses
the stabilizing effect of hydrophobic silica surface in the processes of thermal oxidation at the initial stage. However,
being gradually released from the surface antioxidant prolongs the resistance of the polymer against oxidation.