Influence of the type of packaging on textural properties of minimally processed yellow Peruvian roots
Palavras-chave:
Arracacia xanthorrhiza, mathematical modeling, modified atmosphere, relaxation, texture profile analysisResumo
The textural properties of minimally processed products indicate its quality, and the package is fundamental to maintain the conservation of these foods. The aim of this study was to evaluate texture alterations that occur during the storage period of minimally processed yellow Peruvian roots, using texture profile analysis (TPA) and relaxation, in function of four types of plastic packaging, combined to refrigeration. The roots were selected, sanitized, peeled and sliced. The processing continued with final sanitization, rinsing and immersion in ascorbic and citric acid solution. The slices were centrifuged and packed in expanded polystyrene trays covered with PVC film, and in high-density polyethylene bags (HDPE), polypropylene bags (PP) and multilayer polyolefin bags for vacuum, and stored at 5 ± 2 ºC and 90 ± 5% relative humidity during 12 days. For the TPA, the parameters of interest were hardness and adhesiveness, automatically calculated from the force curves (F) x time (s). For modeling the relaxation process, the generalized Maxwell model was used. The slices packed in PP and vacuum showed higher hardness and normalized force in the balance (0.7502 and 0.7580, respectively), indicating that they were more elastic, better preserving the quality during storage than slices packed in other packaging.Referências
Bellido, G.G.; Hatcher, D.W. (2009). Stress relaxation behaviour of yellow alkaline noodles: Effect of deformation history. Journal of Food Engineering 93: 460–467.
Beléia, L.T.P.F.; Pereira, A.P. (2004). Fracionamento e caracterização de paredes celulares de raízes de mandioca. Ciência e Tecnologia de Alimentos 24: 059-063.
Bhattacharya, S. (2010). Stress relaxation behaviour of moth bean flour dough: Product characteristics and suitability of model. Journal of Food Engineering 97: 539 – 546.
Bourne, M. C. (2003). Food texture and viscosity: concept and measurement. 427p. New York: Academic Press, New York, USA.
Campus, M.; Addis, M.F.; Cappuccinelli, R.; Porcu, M.C.; Pretti, L.; Tedde, V.; Secchi, N.; Stara, G.; Roggio, T. (2010). Stress relaxation behaviour and structural changes of muscle tissues from Gilthead Sea Bream (Sparusaurata L.) following high pressure treatment. Journal of Food Engineering 96: 192 – 198.
Cespi, M.; Bonacucina, G.; Misici-Falzi, M.; Golzi, R.; Boltri, L.; Palmieri, G.F. (2007). Stress relaxation test for the characterization of the viscoelasticity of pellets. European Journal of Pharmaceutics and Biopharmaceutics 67: 476 – 484.
Chitarra, M. I. F.; Chitarra, A. B. (2005). Pós-colheita de frutos e hortaliças: fisiologia e manuseio. 2nd edition. UFLA, Lavras, Minas Gerais, Brazil.
Cunningham, S.E.; Mcminn, W.A.M.; Richardson, P.S. (2007). Modelling water absorption of pasta during soaking. Journal of Food Engineering 82: 600 – 607.
Del Nobile, M.A.; Chillo, S.; Mentana, A.; Baiano, A. (2007). Use of the generalized Maxwell model for describing the stress relaxation behavior of solid- like foods. Journal of Food Engineering 78: 978 – 983.
Fustier, P.; Castaigne, F.; Turgeon, S.L. Biliaderis, C.G. (2009). Impact of commercial soft wheat flour streams on dough rheology and quality attributes of cookies. Journal of Food Engineering 90: 228 – 237.
Junqueira, M. S. Teixeira, L. J. Q. Saraiva, S. H. Peña, W. E. L. Carneiro, J. C. S. (2010). Alterações físico-químicas e microbiológicas inerentes ao processamento mínimo de mandioca no formato palito. Enciclopédia Biosfera 6: 1-13.
Kashaninejad, M., Mortazavi A.; Safekordi, A.; Tabil, L. G. (2007). Thin-layer drying characteristics and modeling of pistachio nuts. Journal of Food Engineering 78: 98-108.
Liu, L.H.; Zabaras, D.; Bennett, L.E.; Aguas, P.; Woonton, B.W. (2009). Effects of UV-C, red light and sun light on the carotenoid content and physical qualities of tomatoes during post-harvest storage. Food Chemistry 115: 495 – 500.
Mohapatra, D.; Rao,P. S. (2005). A thin layer drying model of parboiled wheat. Journal of Food Engineering 66: 513-518.
Nunes, E. E.; Vilas Boas, E. V. B.; Xisto, A. L. R. P. (2011). Qualidade de mandioquinha-salsa minimamente processada: Uso de antioxidantes. Journal of Biotechonoly and Biodiversity 2: 43-50.
Resende, O.; Corrêa, P.C. (2007). Modelagem matemática do processo de hidratação de sementes de feijão. Acta Scientiarum, Agronomy 29: 373-378.
Rodríguez-Sandoval, E.; Fernández-Quintero, A.; Cuvelier, G. (2009). Stress relaxation of reconstituted cassava dough. LWT - Food Science and Technology 42: 202 – 206.
Sadowska, J.; Białobrzewski, I.; Jelinski, T.; Markowski, M. (2009). Effect of fat content and storage time on the rheological properties of Dutch-type cheese. Journal of Food Engineering 94: 254 – 259.
Toivonen, P. M. A.; Brummell, D. A. (2008). Biochemical bases of appearance and texture changes in fresh-cut fruit and vegetables. Postharvest Biology and Technology 48: 1–14.
