Alteration of flesh color and enhancement of bioactive substances via the stimulation of anthocyanin biosynthesis in 'Friar' plum fruit by low temperature and the removal. (25th April 2020)

• Record Type: Journal Article
• Authors: Wang, Limin; Sang, Weina; Xu, Ranran; Cao, Jiankang
• Is Part Of: Food chemistry. Volume 310(2020)
• Publication Date: 2020-04-25
• Subjects: Plum fruit -- Prunus salicina -- Storage -- Shelf life -- Flesh reddening -- Anthocyanins -- Phenylpropanoid pathway -- Ethylene; Cyanidin 3-O-glucoside (PubChem CID: 441667) -- Cyanidin 3-O-rutinoside (PubChem CID: 441674); 4CL 4-coumarate coenzyme A ligase -- ANS anthocyanidin synthase -- C4H cinnamate-4-hydroxylase -- CHI chalcone isomerase -- CI chilling injury -- DFR dihydroflavonol 4-reductase -- F3H flavanone 3-hydroxylase -- LDOX leucoanthocyanidin dioxygenase -- PAL phenylalanine ammonia-lyase -- UDP uridine diphosphate -- UFGT UDP flavonoid 3-O-glucosyltransferase; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2019.125862
• Languages: English
• ISSNs: 0308-8146

Abstract

Highlights: The removal from cold storage elicited dramatic flesh reddening in 'Friar' plums. Cyanidin 3- O -glucoside highly accumulated in the plum fruit during flesh reddening. The removal from cold storage considerably enhanced the phenylpropanoid metabolism. The removal stimulated extremely high level of ethylene mediating flesh reddening. Flesh reddening of plums may increase health benefits and acceptance to consumers. Abstract: 'Friar' plum ( Prunus salicina Lindl.) fruit were transferred to shelf life (25 °C) following different storage periods at low (0 °C) or intermediate (5 °C) temperature. The earliest flesh reddening appeared in plums during shelf life removed after 28 d at 0 °C and 14 d at 5 °C, respectively, in comparison with turning yellow in plums remained at 25 °C immediately after harvest. The flesh reddening developed rapidly thereafter. Anthocyanins, in particular, cyanidin 3- O -glucoside, significantly accumulated in the reddening tissue, and activities of enzymes associated with the phenylpropanoid pathway were considerably activated after the removal. The removal elicited extremely high ethylene production in plums, which might mediate the activation of the anthocyanin biosynthesis in response to cold stress signal. The results provided a potential approach for postharvest regulation of flesh color and accumulation of bioactive substances in plums, which could lead to attractive attributes and health-promoting effects on consumers.