Journal
LEBENSMITTEL-WISSENSCHAFT UND-TECHNOLOGIE-FOOD SCIENCE AND TECHNOLOGY
Volume 36, Issue 4, Pages 391-396Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/S0023-6438(03)00041-0
Keywords
volatile; flavor; aroma; SDE; orange juice
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A comparative study between the aromatic profile in fresh orange juice versus deaerated and pasteurized juices, respectively, was conducted in order to understand the evolution of volatile components after deaeration and pasteurization processes. The aromatic fractions isolated by simultaneous distillation and extraction were analysed by capillary gas chromatography mass spectrometry. At the qualitative level all the volatile components in fresh orange juice were also found in the counterparts after deaeration and pasteurization processes. According to statistical analyses, significant losses in concentration of volatile components occurred during the deaeration process, while there were no statistically significant differences determined among concentrations of volatile components in deaerated and pasteurized juices. These results show that during the industrial processing of orange juice the biggest losses in the concentration of volatile components occurs during deaeration. The pasteurization process does not change the analytical composition of deaerated orange juice in a significant way for any of the 42 quantitated compounds. (C) 2003 Swiss Society of Food Science and Technology. Published by Elsevier Science Ltd. All rights reserved.
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