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Effect of ultrahigh-temperature continuous ohmic heating treatment on fresh orange juice.
J Agric Food Chem. 2005 May 04; 53(9):3519-24.JA

Abstract

The scope of this study is the effect of ohmic heating thermal treatment on liquid fruit juice made of oranges. Effects of ohmic heating on the quality of orange juice were examined and compared to those of heat pasteurization at 90 degrees C for 50 s. Orange juice was treated at temperatures of 90, 120, and 150 degrees C for 1.13, 0.85, and 0.68 s in an ohmic heating system. Microbial counts showed complete inactivation of bacteria, yeast, and mold during ohmic and conventional treatments. The ohmic heating treatment reduced pectin esterase activity by 98%. The reduction in vitamin C was 15%. Ohmic-heated orange juice maintained higher amounts of the five representative flavor compounds than did heat-pasteurized juice. Sensory evaluation tests showed no difference between fresh and ohmic-heated orange juice. Thus, high-temperature ohmic-heating treatment can be effectively used to pasteurize fresh orange juice with minimal sensory deterioration.

Authors+Show Affiliations

Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, 32000 Haifa, Israel.No affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

15853396

Citation

Leizerson, Shirly, and Eyal Shimoni. "Effect of Ultrahigh-temperature Continuous Ohmic Heating Treatment On Fresh Orange Juice." Journal of Agricultural and Food Chemistry, vol. 53, no. 9, 2005, pp. 3519-24.
Leizerson S, Shimoni E. Effect of ultrahigh-temperature continuous ohmic heating treatment on fresh orange juice. J Agric Food Chem. 2005;53(9):3519-24.
Leizerson, S., & Shimoni, E. (2005). Effect of ultrahigh-temperature continuous ohmic heating treatment on fresh orange juice. Journal of Agricultural and Food Chemistry, 53(9), 3519-24.
Leizerson S, Shimoni E. Effect of Ultrahigh-temperature Continuous Ohmic Heating Treatment On Fresh Orange Juice. J Agric Food Chem. 2005 May 4;53(9):3519-24. PubMed PMID: 15853396.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of ultrahigh-temperature continuous ohmic heating treatment on fresh orange juice. AU - Leizerson,Shirly, AU - Shimoni,Eyal, PY - 2005/4/28/pubmed PY - 2005/6/29/medline PY - 2005/4/28/entrez SP - 3519 EP - 24 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 53 IS - 9 N2 - The scope of this study is the effect of ohmic heating thermal treatment on liquid fruit juice made of oranges. Effects of ohmic heating on the quality of orange juice were examined and compared to those of heat pasteurization at 90 degrees C for 50 s. Orange juice was treated at temperatures of 90, 120, and 150 degrees C for 1.13, 0.85, and 0.68 s in an ohmic heating system. Microbial counts showed complete inactivation of bacteria, yeast, and mold during ohmic and conventional treatments. The ohmic heating treatment reduced pectin esterase activity by 98%. The reduction in vitamin C was 15%. Ohmic-heated orange juice maintained higher amounts of the five representative flavor compounds than did heat-pasteurized juice. Sensory evaluation tests showed no difference between fresh and ohmic-heated orange juice. Thus, high-temperature ohmic-heating treatment can be effectively used to pasteurize fresh orange juice with minimal sensory deterioration. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/15853396/Effect_of_ultrahigh_temperature_continuous_ohmic_heating_treatment_on_fresh_orange_juice_ L2 - https://doi.org/10.1021/jf0481204 DB - PRIME DP - Unbound Medicine ER -