Colletotrichum Gloesporioides Inhibition In Situ by Chitosan-Ruta graveolens Essential Oil Coatings: Effect on Microbiological, Physicochemical, and Organoleptic Properties of Guava (Psidium guajava L.) during Room Temperature Storage

Autor: Carlos David Grande Tovar, Johannes Delgado-Ospina, Diana Paola Navia Porras, Yeimmy Peralta-Ruiz, Alexander Pérez Cordero, Jorge Iván Castro, Manuel Noé Chaur Valencia, José Hermínsul Mina, Clemencia Chaves López
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Biomolecules, Vol 9, Iss 9, p 399 (2019)
Druh dokumentu: article
ISSN: 2218-273X
DOI: 10.3390/biom9090399
Popis: Guava is a fruit appreciated worldwide for its high content of bioactive compounds. However, it is considered a highly perishable fruit, generally attacked by pathogenic species such as the fungi Colletotrichum gloeosporioides, which causes anthracnosis. To diminish the losses caused by pathogenic fungi, coatings of chitosan (CS) with Ruta graveolens essential oil (RGEO) in different concentrations (0.5, 1.0, 1.5% v/v) were applied in situ and their effects on the physical properties and microbiological quality of the guavas were studied. The CS+RGEO coated fruits exhibited better physicochemical behavior and lower microbiological decay as compared to the uncoated guavas, demonstrating the effectiveness of the coatings, especially those with 1.5% of RGEO content. All the fruits coated had greater acceptance and quality than the controls, being more those with essential oil incorporation. In situ investigation of C. gloesporioides infection of guavas demonstrated that the CS+RGEO coated guavas showed a high percentage of inhibition in the development of anthracnose lesions. In the present investigation, an alternative method has been proposed to extend the stability of the guavas fruit up to 12 days with application in the food industry.
Databáze: Directory of Open Access Journals
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