Cabrera Bartolomei, Yoriann

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    Evaluación de tratamientos post-cosecha para reducir lesiones de antracnosis (Colletotrichum gloeosporoides) en frutos de papaya (Carica papaya L.)
    (2020-05-29) Cabrera Bartolomei, Yoriann; Plaza-Delestre, María de L.; College of Agricultural Sciences; Zamora Álvarez, José; Orellana Feliciano, Lynette; Department of Food Science and Technology; Avilés Rodríguez, Lucas
    Papaya (Carica papaya L.) is a fruit, native from Central America. In Puerto Rico, papaya is one of the tropical fruits in greatest demand; given its medicinal benefits and high nutritional value. However, its harvest has been decreasing over the years, mostly due to the development of anthracnose (Colletotrichum gloeosporioides). Globally, anthracnose is recognized for causing significant losses during the post-harvest. Traditionally, anthracnose is controlled using fungicides; however, the use of edible films has been evaluated as a possible post-harvest treatment. Based on this, we evaluated the antifungal effect of two edible films (Sodium benzoate with Carnauba wax and Chitosan with Carnauba wax) at two different storage temperatures (21 ± 1 ° C and 12 ± 1 ° C); with the purpose of reducing anthracnose lesions in papaya fruits. The films were applied using the immersion method. Its effectiveness was evaluated in order to ensure the acceptability and quality of the fruits. Among the evaluations carried out, were: the texture, the color, the water activity, the ° Brix, the pH, the titratable acidity, the vitamin C and the levels of ethylene, oxygen and carbon dioxide of the fruits. In addition, we evaluated the life span of the fruits and their susceptibility to anthracnose. According to the results obtained, the edible films failed to reduce anthracnose lesions in the fruits. However, they were able to delay the development of anthracnose and in turn the maturation of the fruits. Therefore, the application of the edible films was effective; by being able to extend the shelf life of papaya fruits.