Abstract

Postharvest treatments with extracts from two wild edible plants (Orobanche crenata and Sanguisorbaminor), water solutions of two inorganic salts (calcium chloride, CaCl2, and sodium bicarbonate, NaHCO3),and their combination (i.e., extracts with added CaCl2 or NaHCO3), were assayed to control sweet cherrypostharvest diseases. Three extract concentrations for each plant were assayed, corresponding to 0.170,0.340, and 0.510 g dry matter/mL and to 0.125, 0.250, and 0.500 g dry matter/mL for S. minor and O.crenata, respectively. At the lowest and the highest concentrations tested, S. minor extract was able toinhibit rot development in stored fruit by 79 and 89%, respectively, with an efficacy comparable to that ofCaCl2 and NaHCO3; for O. crenata extract such inhibition ranged between 64 and 76%, respectively. A doseeffect was observed only for O. crenata. Moreover, the level of control was not improved by the combinedapplication of plant extracts and salts. HPLC analysis of O. crenata extract showed verbascoside as themain phenolic compound, being about 95% of total phenolics; S. minor phenolic pattern appeared to bemore complex, due to the presence of caffeic acid derivatives, quercetin-3-glucoside, kaempferol-3-glucoside and other quercetin, kaempferol, and luteolin derivatives, as well as many other unidentifiedcompounds. Residues of phenolics resulting from plant extracts in treated sweet cherries after storagewere below the analytical limit of detection. The study demonstrated that S. minor and O. crenata extractsmight represent an alternative organic mean for controlling sweet cherry postharvest decay.

Autore Pugliese

• Di Venere Donato , Sergio Lucrezia

Tutti gli autori

• M.A. Gatto; L. Sergio; A. Ippolito; D. Di Venere

Titolo volume/Rivista

Postharvest biology and technology

Anno di pubblicazione

2016

ISSN

0925-5214

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Settori ERC

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Codici ASJC

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