Curative activity of possible biocontrol agents in the postharvest of yellow pitahaya and organic banana

•Fungal strains isolated from yellow pitahaya and organic banana were identified.•Possible biocontrol yeasts, from tropical fruit, were isolated and identified.•Yeasts efficacy against fungus was related to their storage population dynamics.•Potential biocontrol agents did not affect fruit physicoch...

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Bibliographic Details
Published in:Postharvest biology and technology 2020-01, Vol.159, p.111030, Article 111030
Main Authors: Vilaplana, Rosa, Cifuentes, Cristina, Vaca, Luís, Cevallos-Cevallos, Juan Manuel, Valencia-Chamorro, Silvia
Format: Article
Language:English
Subjects:
Alternaria alternata
Antagonism
Anthracnose
Biological control
Biological effects
Black rot
Cold storage
Colletotrichum musae
Cryopreservation
Fruits
Leptocereus quadricostatus
Musa acuminata
Organic chemistry
Postharvest
Selenicereus megalanthus
Yeast
Yeasts
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Summary:•Fungal strains isolated from yellow pitahaya and organic banana were identified.•Possible biocontrol yeasts, from tropical fruit, were isolated and identified.•Yeasts efficacy against fungus was related to their storage population dynamics.•Potential biocontrol agents did not affect fruit physicochemical quality. Biological control is one of the best strategies to reduce the use of chemical products during the postharvest period. The isolation and identification of potential biocontrol agents from fruit surfaces is the first step in obtaining an effective biological product against pathogens. In this study several yeast strains were isolated from Ecuadorian fruit and were identified. The curative activity of two selected yeasts, Candida inconspicua (CPN3) and Pichia kluyveri (B1), was analyzed to establish their antagonism against Alternaria alternata on yellow pitahaya and against Colletotrichum musae on organic banana. CPN3 yeast showed better effectiveness (p 
ISSN:0925-5214
1873-2356
DOI:10.1016/j.postharvbio.2019.111030