Actas de congresos
Maintaining Quality Of 'douradão' Peaches For 28 Days With Ldpe Modified Atmosphere Packages
Registro en:
6th International Cigr Technical Symposium - Towards A Sustainable Food Chain: Food Process, Bioprocessing And Food Quality Management. , v. , n. , p. - , 2011.
2-s2.0-84860783877
Autor
Santana L.R.R.
Benedetti B.C.
Sigrist J.M.M.
De Luca Sarantopoulos C.I.G.
Institución
Resumen
Douradão' peach is a perishable product and when cold stored is subject to chilling injury. The objective of the experiment was to evaluate the effect of modified atmosphere packaging (MAP) and cold storage on quality and storage life of these peaches. Fruits were packed in polypropylene (PP) trays and placed inside low density polyethylene (LDPE) bags (30, 50, 60, 75 μm thickness) with active modified atmosphere (10 kPa CO 2 + 1.5kPa O 2, balance N 2). The control was made with peaches held in nonwrapped PP trays. Fruits were kept at 1 ± 1 °C and 90 ± 5% relative humidity (RH) for 28 days and CO 2 and O 2 within packages was monitored every two days. After the storage period, samples were withdrawn from MAP and kept in air at 25 ± 1 °C and 90 ± 5% RH for ripening. On the day of removal from the cold storage and after the 4 days, peaches were evaluated for weight loss, decay incidence, flesh firmness, woolliness incidence, soluble solids content (SSC), titratable acidity (TA) and juice content. The results showed that MAP had influence on reducing weight loss and prevented postharvest decay. MAP of 1-2 kPa O 2 and 3-6 kPa CO 2 at 1°C (from 50 and 60 μm LDPE films) were effective for keeping good quality of 'Douradão' peaches during 28 days of storage, the ripe fruits showed reduced incidence of woolliness, adequate juiciness and flesh firmness. Packages of 30 and 75 μm LDPE films were ineffective for reducing woolliness during cold storage. MAP fruit showed lower SSC and no relevant effect on TA. Control fruit did not present marketable conditions after 14 days of cold storage.
Valorial l'Aliment de Demain,CNRS,PONAN - Pole Alimentation et Nutrition,INRA,Pays de la Loire,Nantes Metropole Communaute Urbaine (2000) S368-4: Compression Test of Food Materials of Convex Shape, , ASAE Standards, 16th ed. St. Joseph, Michigan, USA: American Society of Agricultural Engineering Bassetto, E., (2006) Quantificação de Danos Ao Longo da Cadeia Produtiva de Pêssegos e Avaliação de Métodos Alternativos de Controle de Doenças Pós-colheita, , Unpublished PhD Thesis. Piracicaba, São Paulo, Brasil: University of São Paulo - ESALQ/USP, Department of Agronomy Fernández-Trujillo, J.P., Cano, A., Artés, F., Physiological changes in peaches related to chilling injury and ripening (1998) Postharvest Biology and Technology, 13 (1), pp. 109-119 Kader, A.A., A summary of CA requirements and recommendations for fruit other than pome fruit (1997) Proceedings of the 7th International Controlled Atmosphere Research Conference, 3, pp. 1-34. , Kader, A. A. Eds. Davis, California, USA Lurie, S., Crisosto, C.H., Chilling injury in peach and nectarine (2005) Postharvest Biology and Technology, 37 (1), pp. 195-208 Santana, L.R.R., Benedetti, B.C., Sigrist, J.M.M., Sarantopóulos, C.I.G.L., Modified atmosphere packaging extending the storage life of 'douradão' peach (2010) Revista Brasileira de Fruticultura, 32 (4), pp. 1009-1017 (2003) SAS Statistical Analysis System for Windows, , SAS. Version 6. Cary, North Carolina, USA: SAS Institute Inc Zoffoli, J.P., Rodriguez, J., Aldunce, J.R.P., Crisosto, C.H., Development of high concentration carbon dioxide modified atmosphere packaging systems to maintain peach quality (1997) Proceedings of the 7th International Controlled Atmosphere Research Conference, 3, pp. 37-45. , Kader, A. A. (eds.) Davis, California, USA