Chitosan coatings in the maintenance of strawberry quality during refrigerated storage / Revestimentos de quitosana na manutenção da qualidade de morango durante o armazenamento refrigerado
Keywords:chemical composition, chitosan coating, preservation, postharvest, Fragaria x ananassa.
This study aimed to assess the use of chitosan coatings in the maintenance of postharvest quality of strawberries during refrigerated storage. The strawberries were selected, immersed in chitosan solution, packed and stored at 5°C for 20 days. The effect of different chitosan concentrations (0.5% and 1.0% w/v) on the qualitative aspects of the fruits was analyzed during storage. The parameters assessed were: weight loss, pH, titratable acidity, soluble solids, total sugars, reducing and non-reducing sugars and ascorbic acid. It was observed that refrigerated storage, associated with chitosan coatings, was effective in maintaining postharvest quality of strawberries, given that chitosan coatings delayed changes in weight loss, soluble solids, total sugars, reducing and non-reducing sugars, titratable acidity, ascorbic acid and pH during 20 days of storage. The chitosan concentration of 1.0% (w/v) was the most promising in maintaining quality, as well as preserving the fruits for more than 10 days under refrigeration
Ali, A., Muhammad, M. T. M., Sijam, K. A., Siddiqui, Y. (2011) Effect of chitosan coatings on the physicochemical characteristics of Eksotika II papaya (Carica papaya L.) fruit during cold storage. Food Chemistry, 124, 620-626.
Antunes L., Filho, J. D. (2003) Conservação pós-colheita de frutos de amoreira-preta. Pesquisa Agropecuária Brasileira, 38, 3, 413-419.
AOAC - Association of Official Analytical Chemists. (2005) Official methods of analysis of the Association Analytical Chemists.18th ed. 1298p.
Bautista-Baños, S., Hernández-Lauzardo, A. N., Velázquez-del Valle, M. G., Hernández-López, M., Ait Barka, E., Bosquez-Molina, E., & Wilson, C. L. (2006). Chitosan as a potential natural compound to control pre and postharvest diseases of horticultural commodities, Crop Protection, 25, 108–118.
Cardoso, L. M., Silva, E. B., Júnior, V. C. A. J., Dessimoni-Pinto, N. A. V. (2012) Qualidade pós-colheita de morangos cv. ‘diamante’ tratado com cloreto de cálcio associado a hipoclorito de sódio. Alimentos e Nutrição, 23, 583-588.
Chen, C., Qian, Y., Chen, Q., Tao, C., Li, C., & Li, Y. (2011) Evaluation of pesticide residues in fruits and vegetables from Xiamen, China, Food Control, 22, 1114–1120.
Chitarra, M. I. F., & Chitarra, A. B. (2005). Pós-colheita de frutas e hortaliças: fisiología e manuseio. Lavras: UFLA. 785p.
Duan, J., Wu, R., Strik, B. C., Zhao, Y. (2011) Effect of edible coating on the quality of fresh blueberries (Duke and Elliott) under commercial storage conditions. Postharvest Biology and Technology,59, 71-79.
EL Ghaouth, A., Arual, J., Grenier, J., Asselin, A. (1992) Antifungal activity of chitosan on two postharvest pathogens of strawberry fruits, Phytopathology, 82, 398-402.
El Ghaouth, A., Arul, J., Ponnampalam, & R., Boulet, M. (1991b) Use of chitosan coating to reduce water loss and maintain quality of cucumber and bell pepper fruits, Journal of Food Processing and Preservation, 15, 359-368.
El Ghaouth, A., Arul, J., Ponnampalam, R., & Boulet, M. (1991a) Chitosan coating effect on storability and quality of fresh strawberries, Journal of Food Science, 56, 1618-1620.
El Ghaouth, A., Arul, J., Wilson, C., & Benhamou, N. (1997) Biochemical and cytochemical aspects of the interactions of chitosan and Botrytis cinerea in bell pepper fruit, Postharvest Biology and Technology, 12, 183-194.
Fang, S. W., Li, C. F., & Shih, D. Y. C. (1994) Antifungal activity of chitosan and its preservative effect on low sugar candied kumquat, Jounal of Food Protection, 56, 136-140.
Ferreira D. (2006) Sisvar: a computer statistical analysis system. Ciência e Agrotecnologia, 35, 6.
Fráguas, R. M., Simão, A. A., Faria, P. V., Queiroz, E. R., Oliveira Junior, E. N., & Abreu, C. M. P. (2015) Preparo e caracterização de filmes comestíveis de quitosana. Polímeros, 25, 48–53.
Hernandez-Muñoz, P., Almenar, E., Valle, D., Velez, D., Gavara, R. (2008) Effect of chitosan coating combined with postharvest calcium treatment on strawberry quality during refrigerated storage. Food Chemistry, 110, 428-435.
Jiang, Y. M., & Li, Y. B. (2001) Effects of chitosan coating on postharvest life and quality of longan fruit, Food Chemistry, 73, 139-143.
Maftoonazad, N., Ramaswamy, H. S., Marcotte, M. (2008) Shelf-life extension of peaches through sodium alginate and methyl cellulose edible coatings. International Journal of Food Science and Technology, 43, 951–957.
Malgarim, M. B., Cantillano, R. F. F., Coutinho, E. F. (2006a) Sistemas e condições de colheita e armazenamento na qualidade de morangos cv. Camarosa. Revista Brasileira de Fruticultura, 28, 2, 185-189.
Malgarim, M. B., Malgarim, M. B., Tibola, C. S., Zaicowisk, C., Ferri, V. C., Silva, P. R. (2006b) Modificação da atmosfera e resveratrol na qualidade pós colheita de morangos cv. Camarosa. Revista Brasileira de Agrociência, 12, 67-70.
Nagpala, E. G., Guidarelli, E., Gasperotti, M., Masuero, D., Bertolini, P., Vrhovsek, U., & Baraldi, E. (2016). Polyphenols variation in fruits of the susceptible strawberry cultivar Alba during ripening and upon fungal pathogen interaction and possible involvement in unripe fruit tolerance. Journal of Agricultural and Food Chemistry, 64,1869–1878.
NELSON, N. (1944) A photometric adaptation of Somogyi method for the determination of glucose. Journal of Biological Chemists, 153, 375-380.
Perdones, A., Sánchez-González, L., Chiralt, A., VargaS, M. (2012) Effect of chitosan–lemon essential oil coatings on storage-keeping quality of strawberry. Postharvest Biology and Technology,70, 32-41.
Ribeiro, V. G., Assis, J. S., Silva, F. F., Siqueira, P. P. X., & Vilaronga, C. P. P. (2005). Armazenamento de goiabas 'Paluma' sob refrigeração e em condição ambiente, com e sem tratamento com cera de carnaúba. Revista brasileira de fruticultura, 27, 203-206.
Souza, M. L., Morgado, C. M. A., Marques, K. M., Mattiuz, C. F. M., MATTIUZ, B. (2011) Pós-colheita de mangas 'Tommy Atkins' recobertas com quitosana. Revista Brasileira de Fruticultura, 337-343.
Strohecker, R., Henning, H. M. (1967) Analisis de vitaminas: métodos comprobados. Madrid: Paz Montalvo, 428p.
Tavares, T. S., Rocha, D. A., Nogueira, D. A., Freire, L., Oliveira Junior, E. N., Abreu, C. M. P. (2017) Influência de quitosana de baixa massa molar na manutenção da qualidade pós-colheita de morangos. Caderno de Ciências Agrárias, 9, 2, 36-47.
Vargas M., Albors, A., Chiralt, A., González-Martínez, C. (2006) Quality of cold-stored strawberries as affected by chitosan-oleic acid edible coatings, Postharvest Biology and Technology, 41, 164-171.
Velickova, E., Winkelhausen, E., Kuzmanova, S., Alves, V. D., & Moldão-Martins, M. (2013) Impact of chitosan-beeswax edible coatings on the quality of fresh strawberries (Fragaria ananassa cv Camarosa) under commercial storage conditions. LWT - Food Science and Technology, 52, 80–92.
Yoshida, C. M. P., Oliveira-Jr, E. N., Franco, T. T. (2008) Chitosan tailor-made films: the effects of additives on barrier and mechanical properties. Packaging Technology and Science, 22, 3, 161-170.