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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/18663

Title: Pilot-scale production of cloudy juice from low-quality pear fruit under low-oxygen conditions
Authors: De Paepe, Domien
Coudijzer, Katleen
Noten, Bart
Servaes, Kelly
De Loose, Marc
Diels, Ludo
Voorspoels, Stefan
Van Droogenbroeck, Bart
Issue Date: 2015
Citation: FOOD CHEMISTRY, 173, p. 827-837
Abstract: In this study, a process for the production of premium quality yellowish, cloudy pear juice from low-quality fruit under low-oxygen conditions was developed. The production process consisted of (1) shredding, (2) pressing with spiral-filter technology including a vacuumised extraction cell, (3) holding in an inert gas buffer tank, (4) pasteurisation, (5) and refrigerated storage. First, the system parameters of a spiral-filter press were optimised with the aim of producing a yellowish, cloudy pear juice with the highest possible juice yield. A maximum juice yield of 78% could be obtained. Enzymatic browning during juice extraction could be suppressed as a result of the fast processing and the low air (oxygen) levels in the extraction chamber of the spiral-filter press. Furthermore, we observed that instantaneous pasteurisation at 107 degrees C for 6 s, subsequent aluminium laminate packaging and cold storage had only a minimum effect on the phenolic composition. (C) 2014 Elsevier Ltd. All rights reserved.
Notes: [De Paepe, Domien; Coudijzer, Katleen] Inst Agr & Fisheries Res ILVO, Technol & Food Sci Unit T&V, Food Pilot, B-9090 Melle, Belgium. [De Paepe, Domien; Noten, Bart; Valkenborg, Dirk; Servaes, Kelly; Diels, Ludo; Voorspoels, Stefan] Flemish Inst Technol Res VITO, Business Unit Separat & Convers Technol SCT, B-2400 Mol, Belgium. [De Paepe, Domien; De Loose, Marc; Van Droogenbroeck, Bart] Inst Agr & Fisheries Res ILVO, Technol & Food Sci Unit, Prod Qual & Innovat Res Area, B-9820 Merelbeke, Belgium. [Valkenborg, Dirk] Hasselt Univ, Interuniv Inst Biostat & Stat Bioinformat, B-3590 Diepenbeek, Belgium. [Valkenborg, Dirk] Flemish Inst Technol Res VITO, Business Unit Qual Environm MRG, B-2400 Mol, Belgium.
URI: http://hdl.handle.net/1942/18663
DOI: 10.1016/j.foodchem.2014.10.018
ISI #: 000347755800109
ISSN: 0308-8146
Category: A1
Type: Journal Contribution
Validation: ecoom, 2016
Appears in Collections: Research publications

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