Antioxidant potential of ‘Conference’ pears during cold storage and shelf life in response to 1-methylcyclopropene

Effects of a feasible 1-methylcyclopropene postharvest treatment on senescence and quality maintenance of harvested Huanghua pears during storage at ambient temperature

“…1a, b) were consistent with the previous studies like 1-MCPtreated Bartlett pears (Ekman, Clayton, Biasi, & Mitcham, 2004), Laiyang pears (Li et al, 2013), Conference pears (Chiriboga et al, 2013) and 'd'Anjou' pears (Xie, Song, Wang, & Sugar, 2014).…”

“…Previous studies reported that high activities of active oxygen scavenging enzymes including SOD, CAT and APX were involved in alleviating oxidative damage and delaying the process of senescence (Li et al, 2013;Lin et al, 2014Lin et al, , 2015. Similarly, Chiriboga et al (2013) found that 1-MCP treatment could obviously delay postharvest senescence of Conference pears during cold storage by inducing higher activities of SOD, CAT and APX to decreasing the accumulation of ROS. The reduction of oxidative stress might be one of the reasons why 1-MCP treatment was effective in delaying senescence in Huanghua pears during storage.…”

“…In general, active oxygen scavenging enzymes and endogenous antioxidant substances are involved in defense against oxidative stress to prevent or alleviate the damage from ROS. Active oxygen scavenging enzymes such as superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) play an important role in scavenging ROS (Chiriboga, Bordonaba, Schotsmans, Larrigaudi ere, & Recasens, 2013;Lin et al, 2014Lin et al, , 2015. Meanwhile, endogenous antioxidant substances including ascorbic acid (AsA) and glutathione (GSH) in fruit are also key substances for scavenging ROS (Chiriboga et al, 2013;Lin et al, 2014).…”

“…Active oxygen scavenging enzymes such as superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) play an important role in scavenging ROS (Chiriboga, Bordonaba, Schotsmans, Larrigaudi ere, & Recasens, 2013;Lin et al, 2014Lin et al, , 2015. Meanwhile, endogenous antioxidant substances including ascorbic acid (AsA) and glutathione (GSH) in fruit are also key substances for scavenging ROS (Chiriboga et al, 2013;Lin et al, 2014). The objective of this study was to determine whether 1-MCP-induced modifications in active oxygen scavenging enzymes and antioxidant substances are linked to delaying senescence of Huanghua pears during storage at ambient temperature.…”

Changes in phenolics and antioxidant property of peach fruit during ripening and responses to 1-methylcyclopropene

“…While 1-MCP maintained anthocyanin concentrations, the flavonols and flavan-3-ols were unaffected by treatment (MacLean et al, 2006). The studies by Larrigaudière et al (2004) and Chiriboga et al (2013) indicated that the fruit treated with 1-MCP exhibited higher antioxidant potential, but the research was restricted to related enzymes, especially CAT, SOD, POX and ascorbate peroxidase.…”