title: Effects of sulfur dioxide concentration on organic acids and β-carotene in dried apricots during storage.
abstract: The effects of various sulfur dioxide (SO2) concentrations (0, 451, 832, 1594, 2112 and 3241mg/kg) on the profiles and contents of organic acids (OAs) and β-carotene in sulfured dried apricots (SDAs) were investigated during storage at 4, 20 and 30°C for 379days. In all samples, four OAs [malic acid (MA), citric acid (CA), succinic acid (SA) and oxalic acid (OXA)] were identified. SA (13.9-31.8g/kgdw) was the major OA in SDAs containing SO2at lower than 1594mgSO2/kg, while MA (11.7-11.7g/kgdw) was the major OA in SDAs containing SO2at higher than 1594mgSO2/kg. As SO2concentration increased, CA and OXA contents increased whereas MA contents decreased. Moreover, the highest stabilities of β-carotene, MA and SO2were determined in SDAs containing 1594mgSO2/kg at 4°C. Therefore, we suggest using 1594mgSO2/kg and storing SDAs at 4°C to protect OAs and β-carotene.
authors.affiliation: Department of Food Engineering, Faculty of Engineering, Ankara University, Gölbaşı Campus, Gölbaşı 06830, Ankara, Turkey. Electronic address: aysenursalur@hotmail.com.
authors.forename: Ayşenur
authors.initials: A
authors.lastname: Salur-Can
authors.affiliation: Institute of Food Safety, Ankara University, Diskapi Campus, Diskapi 06110 Ankara, Turkey. Electronic address: mturkyilmaz@ankara.edu.tr.
authors.forename: Meltem
authors.initials: M
authors.lastname: Türkyılmaz
authors.affiliation: Department of Food Engineering, Faculty of Engineering, Ankara University, Gölbaşı Campus, Gölbaşı 06830, Ankara, Turkey. Electronic address: mozkan@ankara.edu.tr.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Özkan
mesh_terms: D019343:Citric Acid / Q000032:analysis; D061353:Food Storage; D008293:Malates / Q000032:analysis; D019815:Oxalic Acid / Q000032:analysis; D000068219:Prunus armeniaca / Q000737:chemistry*; D019802:Succinic Acid / Q000032:analysis; D013458:Sulfur Dioxide / Q000032:analysis*; D019207:beta Carotene / Q000032:analysis*
chemical_list: D008293:Malates; D019207:beta Carotene; D013458:Sulfur Dioxide; D019343:Citric Acid; C030298:malic acid; D019815:Oxalic Acid; D019802:Succinic Acid
keywords: Citric acid; Malic acid; Oxalic acid; Succinic acid