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  • Title: Preharvest salicylic acid and acetylsalicylic acid treatments preserve quality and enhance antioxidant systems during postharvest storage of sweet cherry cultivars.
    Author: Giménez MJ, Serrano M, Valverde JM, Martínez-Romero D, Castillo S, Valero D, Guillén F.
    Journal: J Sci Food Agric; 2017 Mar; 97(4):1220-1228. PubMed ID: 27312073.
    Abstract:
    BACKGROUND: Sweet cherries are much appreciated by consumers as a result of their organoleptic quality attributes and antioxidant properties, although they deteriorate rapidly after harvest. Different preharvest strategies have been carried out to increase their quality at the time of harvest. We present data regarding the effect of preharvest salicylic acid (SA) and acetyl salicylic acid (ASA) treatments on sweet cherry quality during postharvest storage. RESULTS: At harvest and during postharvest storage, sweet cherry fruits ('Sweet Heart', 'Sweet Late' and 'Lapins') from SA (0.5 mmol L-1 ) and ASA (1 mmol L-1 ) treated trees had a higher colour (lower chroma index), firmness, total soluble solids, total phenolics, total anthocyanins and hydrophilic total antioxidant activity. In addition, the activity of the antioxidant enzymes catalase, peroxidase, superoxide dismutase and ascorbate peroxidase was also enhanced in SA- and ASA-treated cherries. CONCLUSION: Both SA and ASA preharvest treatments could be promising tools for improving sweet cherry quality at harvest and after storage, with an additional effect on delaying the postharvest ripening process by increasing the levels of antioxidant compounds and the activity of the antioxidant enzymes. © 2016 Society of Chemical Industry.
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