Linked Life Data

19193225

Source:http://linkedlifedata.com/resource/pubmed/id/19193225

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2009-3-30
pubmed:abstractText
Apple juice prepared from 'Annurca' apple puree was treated with a HPCD batch system. The pH, degrees Brix, color parameters and microbial load of the treated apple juice were compared with those of thermally processed juice. Thermal processes were carried out at 35, 50, 65, 85 degrees C and treatment times ranging between 10 and 140 minutes. Microbial inactivation kinetics indicated that 5-log reduction of natural flora in apple juice was achieved at 85 degrees C and 60 minutes of treatment time for conventional thermal process and at 16.0 MPa, 60 degrees C and 40 minutes for HPCD process. Results suggested that temperature played a fundamental role on HPCD treatment efficiency, with inactivation significantly enhanced when it increased from 35 to 60 degrees C. Less significant was the role of the pressure at the tested levels of 7.0, 13.0 and 16.0 MPa. Also, 5-log reduction of natural flora in apple juice was obtained at lower temperatures by cyclic treatments of six compression and decompression steps. There were no significant differences between treated and untreated samples in degrees Brix (alpha = 0.05). Significant differences were detected in pH values between the untreated and HPCD treated samples (alpha = 0.05). There was a significant decrease in 'L*' and 'b*' values and also differences were detected in 'a*' values between the untreated and the HPCD treated samples (alpha = 0.05). Statistical analysis for degrees Brix, pH and color data showed no differences between the untreated and HPCD treated samples in the first 2 weeks of storage at 4 degrees C. These results emphasize the potential use of HPCD in industrial applications.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:issn
1754-1611
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
3
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3
pubmed:year
2009
pubmed:articleTitle
Microbial inactivation and shelf life of apple juice treated with high pressure carbon dioxide.
pubmed:affiliation
Department of Chemical and Food Engineering, University of Salerno via Ponte Don Melillo, 84084 Fisciano (SA) Italy. gferrentino@unisa.it
pubmed:publicationType
Journal Article