0

Supercritical Carbon Dioxide Applied to Citrus Processing PUBLIC ACCESS

[+] Author Affiliations
Murat O. Balaban, Ana G. Arreola

University of Florida, Gainesville, FL

Paper No. CEC1991-3702, pp. 16-37; 22 pages
doi:10.1115/CEC1991-3702
From:
  • ASME 1991 Citrus Engineering Conference
  • ASME 1991 Citrus Engineering Conference
  • Lakeland, Florida, USA, March 21, 1991
  • Conference Sponsors: ASME Florida Section
  • ISBN: 978-0-7918-9978-6
  • Compilation Copyright © 2018 ASME

abstract

Uses of supercritical (SC) fluids in citrus processing in conventional applications such as citrus oil fractionation, lemon oil extraction, and orange juice debittering are reviewed. In a non-conventional application, single strength orange juice was treated with SC CO2. Effect of pressure (7–34 MPa), temperature (35–60°C), and time (15–180 min) on pectinesterase (PE) activity, cloud stability, microorganisms, and sensory attributes were investigated. SC CO2 inactivated PE below thermal inactivation temperatures. (Activation energy at 31 MPa = 97.4 KJ/mole; at atmospheric pressure = 166.6 KJ/mole.) SC treatment did not change pH and °Brix; but stabilized and enhanced cloud and color. Ascorbic acid was better preserved. Sensory evaluations of color and cloudiness of treated juice were better. Flavor, aroma and overall acceptability were not different. Aerobic total plate counts showed that D value of treated juice decreased as pressure increased. D values at 35, 45 and 60°C of SC treated juice at 33.1 MPa were 28, 22.6 and 12.7 min, respectively.

Paper published with permission.

Compilation Copyright © 2018 ASME
This article is only available in the PDF format.

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In