Effect of Methyl Jasmonate on Enzymatic Browning and Antioxidant Enzyme System of Eggplant Fruit (Solanum melongena L.)**

Abstract

Eggplant fruit result in significant economic losses, as being nonclimacteric is sensitive to chilling injury and short postharvest life. Eggplants were harvested in Gevas district of Van, Turkey. The eggplant fruits were harvested by taking maturity levels into consideration and then placed in foam plates and covered with Modified Atmosphere Packaging (MAP) for 21 days in cold air depots containing 10 and 20 °C temperature and 90-95% relative humidity. The fruits of the same size were divided into 3 different groups. The first group of fruits was immersed in distilled water as a control. The second group of fruits were immersed in 1 μM MeJA solution for 10 minutes. The third group was immersed in 5 μM MeJA solution for 10 minutes. The effect of postharvest Methyl Jasmonate treatment during the storage period on respiratory rate, Superoxide dismutase (SOD), catalase (CAT), polyphenol oxidase (PPO), and malondialdehyde (MDA) were evaluated. The results obtained from this study suggest that 1 µM Methyl Jasmonate application gives the best results in terms of parameters such as respiratory rate, SOD, PPO, and MDA at 20 °C, while 5 µM Methyl Jasmonate was found to be the most positive one in terms of CAT enzyme activity. As a result, it can be suggested that MeJA treatments were effective on antioxidativ enzymes and respiration rate during the storage period.

Effect of Bisphenol-A on Oxidative Status and Certain Inflammatory Markers in Rats: Experimental Study

“…They show that BPA modifies the inflammatory response by regulating the activation of the inflammatory response and plays a critical and disruptive role in the immune responses of macrophages. 14,33 As shown in previous studies, it has been accepted that BPA modifies the inflammatory response by regulating the activation of the inflammatory response and plays a critical and destructive role in macrophage immune responses. 14,[31][32][33] In this way, it causes an increase in cytokines.…”

“…14,33 As shown in previous studies, it has been accepted that BPA modifies the inflammatory response by regulating the activation of the inflammatory response and plays a critical and destructive role in macrophage immune responses. 14,[31][32][33] In this way, it causes an increase in cytokines. In addition, BPA induces oxidative stress in rats or ROS produced during BPA metabolism is more effective than the intracellular antioxidant system.…”

“…Macrophages are actively involved in eliciting proinflammatory or anti-inflammatory responses, while these processes may contribute to tissue damage or regeneration. 14,31 Some compounds such as the NLRP3 inflammasome are implicated as a critical part of the innate immune system, mediating pro-caspase-1 activation and subsequent secretion of the proinflammatory cytokines IL-1β/IL-18 in response to microbial disease and cellular damage. Phosphorylation of caspase-1 through activation of NLRP3 inflammation regulates cytokine release, specifically IL-1β and IL-18.…”

“…24 male Wistar Albino Rats to be used as experimental animals were obtained from the Experimental Application and Research Center of Yüzüncü Yıl University [Local Ethics Committee of Van Yüzüncü Yıl University (date: November 03, 2022; no: 2022/11-01)] animals were divided into 4 groups (control, sham, BPA25, BPA50) each containing 6 animals and put in the study unit. 14 During the one-month study, daily diets (pellet feed-ad libitum nutrition) were continued as normal in all groups of experimental animals.…”