期刊
POLYMERS
卷 12, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/polym12081822
关键词
antifungal; chitosan coatings; Ruta graveolensessential oil; postharvest quality; Solanum lycopersicum
资金
- Universidad del Atlantico
The tomato (Solanum lycopersicumL.) is one of the many essential vegetables around the world due to its nutritive content and attractive flavor. However, its short shelf-life and postharvest losses affect its marketing. In this study, the effects of chitosan-Ruta graveolens(CS + RGEO) essential oil coatings on the postharvest quality of Tomato var. chonto stored at low temperature (4 degrees C) for 12 days are reported. The film-forming dispersions (FFD) were eco-friendly synthesized and presented low viscosities (between 0.126 and 0.029 Pa s), small particle sizes (between 1.29 and 1.56 mu m), and low densities. The mature index (12.65% for uncoated fruits and 10.21% for F4 coated tomatoes), weight loss (29.8% for F1 and 16.7% for F5 coated tomatoes), and decay index (3.0 for uncoated and 1.0 for F5 coated tomatoes) were significantly different, indicating a preservative effect on the quality of the tomato. Moreover, aerobic mesophilic bacteria were significantly reduced (in five Log CFU/g compared to control) by using 15 mu L/mL of RGEO. The coatings, including 10 and 15 mu L/mL of RGEO, completely inhibited the mold and yeast growth on tomato surfaces without negatively affecting the consumer acceptation, as the sensorial analysis demonstrated. The results presented in this study show that CS + RGEO coatings are promising in the postharvest treatment of tomato var. chonto.
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