title: Influence of modified atmosphere and ethylene levels on quality attributes of fresh tomatoes (Lycopersicon esculentum Mill.).
abstract: Controlling storage atmosphere is a key factor for delaying postharvest fruit quality loss. The objective of this study is to evaluate its influence on physico-chemical, sensorial and nutritional quality attributes of two tomato fruit cultivars (Delizia and Pitenza) that respectively have a short- and long-storage life. To that end, the effect of two types of bags with different gas permeability, combined or not with an ethylene sorbent, on tomato organoleptic and nutritional properties were compared during fruit storage at 13°C. CO2 and O2 were critical factors for controlling tomato postharvest behaviour. Weight loss, firmness, color and visual quality were only affected by bag permeability just as total sugar content and acidity for Pitenza tomatoes. (trans)-2-Hexenal also appears to be related with CO2 and O2 levels. Lycopene, total phenols (TP) and ascorbic acid (AA) contents were also affected by the packaging form and the storage length. Ethylene removal in combination with MAP led to a higher content in TP and AA in the short-life tomato cultivar.
authors.affiliation: Instituto de Agroquímica y Tecnología de Alimentos, IATA-CSIC, Av. Agustín Escardino 7, 46980 Paterna, Valencia, Spain. Electronic address: idominguez@iata.csic.es.
authors.forename: Irene
authors.initials: I
authors.lastname: Domínguez
authors.affiliation: Instituto de Agroquímica y Tecnología de Alimentos, IATA-CSIC, Av. Agustín Escardino 7, 46980 Paterna, Valencia, Spain.
authors.forename: María T
authors.initials: MT
authors.lastname: Lafuente
authors.affiliation: Instituto de Agroquímica y Tecnología de Alimentos, IATA-CSIC, Av. Agustín Escardino 7, 46980 Paterna, Valencia, Spain.
authors.forename: Pilar
authors.initials: P
authors.lastname: Hernández-Muñoz
authors.affiliation: Instituto de Agroquímica y Tecnología de Alimentos, IATA-CSIC, Av. Agustín Escardino 7, 46980 Paterna, Valencia, Spain. Electronic address: rgavara@iata.csic.es.
authors.forename: Rafael
authors.initials: R
authors.lastname: Gavara
mesh_terms: D001205:Ascorbic Acid / Q000032:analysis; D003116:Color; D005030:Ethylenes / Q000032:analysis*; D005638:Fruit / Q000737:chemistry*; D006801:Humans; D018551:Solanum lycopersicum / Q000737:chemistry*; D009753:Nutritive Value; D010636:Phenols / Q000032:analysis; D013649:Taste
chemical_list: D005030:Ethylenes; D010636:Phenols; C036216:ethylene; D001205:Ascorbic Acid
keywords: Ascorbic acid; Ethylene; Lycopene; Lycopene (PubChem CID: 446925); Modified atmosphere; Phenolic compounds; Quality; l-ascorbic acid (PubChem CID: 23667548)