Abstract
Pomegranate (Punica granatum L.) peel and sumac (Rhus coriaria L.) fruit and leaf extracts were chemically characterized and their ability to inhibit table grape (cv. Italia) rots caused by Botrytis cinerea was evaluated on artificially inoculated berries. Different extraction methods were applied and extracts were characterized through Ultra Fast High Performance Liquid Chromatography coupled to Photodiode array detector and Electrospray ionization Mass spectrometer (UPLC-PDA-ESI/MSn) for their phenol and anthocyanin contents. The concentrated pomegranate peel extract (PGE-C) was the richest in phenols (66.97 g gallic acid equivalents/kg) while the concentrated sumac extract from fruits (SUF-C) showed the highest anthocyanin amount (171.96 mg cyanidin 3-glucoside equivalents/kg). Both phenolic and anthocyanin profile of pomegranate and sumac extracts were quite different: pomegranate extract was rich in cyanidin 3-glucoside, pelargonidin 3-glucoside and ellagic acid derivatives, while sumac extract was characterized by 7-methyl-cyanidin 3-galactoside and gallic acid derivatives. The concentrated extracts from both pomegranate peel and sumac leaves significantly reduced the development of Botrytis rots. In particular, the extract from pomegranate peel completely inhibited the pathogen at different intervals of time (0, 12, and 24 h) between treatment and pathogen inoculation on fruits maintained at 22–24 °C and high relative humidity (RH). This extract may represent a valuable alternative to control postharvest fungal rots in view of its high efficacy because of the low cost of pomegranate peel, which is a waste product of processing factories.
Highlights
Postharvest losses of fruits mainly occur by decay caused by fungal pathogens, which, in addition to the economic damage may produce mycotoxins dangerous to human health [1]
The present study aimed to evaluate different methods to obtain plant extracts from pomegranate peel and sumac fruits and leaves and to assess their efficacy against B. cinerea rots on artificially inoculated table grape berries, cv
Extracts obtained from pomegranate (Punica granatum L.) peels and from sumac (Rhus coriaria L.)
Summary
Postharvest losses of fruits mainly occur by decay caused by fungal pathogens, which, in addition to the economic damage may produce mycotoxins dangerous to human health [1]. The above nutraceutical and medical properties are not limited to the edible part of pomegranate fruit, the non-edible fractions of fruit as well as other plant parts contain even higher amounts of specific nutritionally valuable and biologically active components [14]. There are still few studies about the biological activity of sumac and pomegranate against fungi [1,19,21,27] Their potential use to control fungal plant pathogens has been rarely investigated [28]. The present study aimed to evaluate different methods to obtain plant extracts from pomegranate peel and sumac fruits and leaves and to assess their efficacy against B. cinerea rots on artificially inoculated table grape berries, cv.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
