title: [Microbiological and physicochemical evaluation of pasteurized beverages fortified with orange deodorized residues extracts].
abstract: Microbiological and physicochemical parameters of pasteurized beverages conditioned with aqueous extracts from orange deodorized residues were evaluated. The fruits used were selected according to following criterion: homogenous maturity, without physical damage and absence of apparent chlorophyll. Orange peels were dried and transformed to flour. The juice was evaluated by means of these parameters: pH 3.90, degrees Brix 10, titrable acidity 0.33 g of citric acid/100 mL and total carotenoids 0.0078 mg/mL. Volatil compounds of the flour that may to cause bitterness were separated by means of two methods of deodorization: distillation in current of vapor and in autoclave to 121 degrees C; then, the flour was extracted with water (relation 1:50 p/v). Pasteurized citric beverages (orange juice) were elaborated adding the deodorized extracts. pH, degrees Brix, titrable acidity and total carotenoids showed no significant differences (P>0.05). Microbiological results were according to pasteurized products. Sensorial analysis by untrained panel showed no signiificant differences. In conclusion, the deodorant processes were effectives and permitted the inclusion of aquasoluble compounds as flavonoids with antioxidant activity.
authors.affiliation: Laboratorio de Biomoléculas, Ingeniería de Alimentos, Universidad Simón Rodríguez, Canoabo, Estado Carabobo, Venezuela.
authors.forename: Mario José
authors.initials: MJ
authors.lastname: Moreno Alvarez
authors.forename: Alexandra
authors.initials: A
authors.lastname: Machado
authors.forename: Arelis
authors.initials: A
authors.lastname: Padrón
authors.forename: David
authors.initials: D
authors.lastname: García
authors.forename: Douglas Rafael
authors.initials: DR
authors.lastname: Belén Camacho
mesh_terms: D001628:Beverages / Q000032:analysis* / Q000382:microbiology / Q000592:standards; D002627:Chemistry, Physical / Q000379:methods; D016009:Chi-Square Distribution; D032084:Citrus sinensis / Q000737:chemistry* / Q000382:microbiology; D005511:Food Handling / Q000379:methods* / Q000592:standards; D006801:Humans; D024301:Plant Bark / Q000737:chemistry* / Q000382:microbiology; D018709:Statistics, Nonparametric