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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/17037

Title: Thermal degradation of cloudy apple juice phenolic constituents
Authors: De Paepe, D.
Coudijzer, K.
Noten, B.
Servaes, K.
De Loose, M.
Voorspoels, S.
Diels, L.
Van Droogenbroeck, B.
Issue Date: 2014
Citation: FOOD CHEMISTRY, 162, p. 176-185
Abstract: Although conventional thermal processing is still the most commonly used preservation technique in cloudy apple juice production, detailed knowledge on phenolic compound degradation during thermal treatment is still limited. To evaluate the extent of thermal degradation as a function of time and temperature, apple juice samples were isothermally treated during 7200 s over a temperature range of 80-145 degrees C. An untargeted metabolomics approach based on liquid chromatography-high resolution mass spectrometry was developed and applied with the aim to find out the most heat labile phenolic constituents in cloudy apple juice. By the use of a high resolution mass spectrometer, the high degree of in-source fragmentation, the quality of deconvolution and the employed custom-made database, it was possible to achieve a high degree of structural elucidation for the thermolabile phenolic constituents. Procyanidin subclass representatives were discovered as the most heat labile phenolic compounds of cloudy apple juice.
Notes: [De Paepe, D.; Coudijzer, K.] Inst Agr & Fisheries Res ILVO, Technol & Food Sci Unit T&V, B-9090 Melle, Belgium. [De Paepe, D.; De Loose, M.; Van Droogenbroeck, B.] Inst Agr & Fisheries Res ILVO, Technol & Food Sci Unit T&V, Prod Qual & Innovat PI, B-9820 Merelbeke, Belgium. [De Paepe, D.; Valkenborg, D.; Noten, B.; Servaes, K.; Voorspoels, S.; Diels, L.] Flemish Inst Technol Res VITO, Business Unit Separat & Convers Technol SCT, B-2400 Mol, Belgium. [Valkenborg, D.] Hasselt Univ, Interuniv Inst Biostat & Stat Bioinformat, B-3590 Diepenbeek, Belgium. domien.depaepe@ilvo.vlaanderen.be
URI: http://hdl.handle.net/1942/17037
DOI: 10.1016/j.foodchem.2014.04.005
ISI #: 000337853000026
ISSN: 0308-8146
Category: A1
Type: Journal Contribution
Validation: ecoom, 2015
Appears in Collections: Research publications

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