title: Influence of calcium lactate and modified atmosphere on respiration rate, optical and mechanical properties of sliced persimmon.
abstract: The aim of this study was to evaluate the effect of a modified atmosphere (5% and 10% of CO2) and calcium lactate treatment on the respiratory metabolism of minimally processed persimmon. A static system to measure changes in the composition of the headspace was used. Composition, texture and colour were also analysed. Persimmon slices were evaluated immediately after the washing treatment and after the O2 composition had decreased to 17% to avoid changes in the metabolic pathway. All samples were stored at 4 ℃. The results showed that modified atmosphere did not affect compositional properties, although there was a slight increase in pH values at the end of each treatment. Calcium lactate treatment reduced the respiration rate, in terms of O2, in samples kept in air. Additionally, a calcium lactate effect was immediately observed on mechanical properties after the washing stage. On the other hand, luminosity and b* coordinate decreased in unwashed and calcium lactate samples kept in 5% CO2.
authors.affiliation: Institute of Food Engineering for Development, Universitat Politècnica de València, Spain.
authors.forename: C
authors.initials: C
authors.lastname: Almela
authors.affiliation: Institute of Food Engineering for Development, Universitat Politècnica de València, Spain mcasgo@upvnet.upv.es.
authors.forename: M L
authors.initials: ML
authors.lastname: Castelló
authors.affiliation: Institute of Food Engineering for Development, Universitat Politècnica de València, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Tarrazó
authors.affiliation: Institute of Food Engineering for Development, Universitat Politècnica de València, Spain.
authors.forename: M D
authors.initials: MD
authors.lastname: Ortolá
mesh_terms: D000388:Air; D017610:Calcium Compounds; D002245:Carbon Dioxide; D019069:Cell Respiration; D003080:Cold Temperature; D003116:Color; D029788:Diospyros / Q000378:metabolism; D005511:Food Handling / Q000379:methods*; D061353:Food Storage; D005638:Fruit / Q000378:metabolism*; D006244:Hardness; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007773:Lactates; D010100:Oxygen / Q000378:metabolism*
chemical_list: D017610:Calcium Compounds; D007773:Lactates; D002245:Carbon Dioxide; C110051:calcium lactate; D010100:Oxygen
keywords: Fresh-cut persimmon; calcium lactate; modified atmosphere; physicochemical properties; respiration rate