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Title: | Pilot-scale production of cloudy juice from low-quality pear fruit under low-oxygen conditions | Authors: | De Paepe, Domien Coudijzer, Katleen Noten, Bart VALKENBORG, Dirk Servaes, Kelly De Loose, Marc Diels, Ludo Voorspoels, Stefan Van Droogenbroeck, Bart |
Issue Date: | 2015 | Publisher: | ELSEVIER SCI LTD | Source: | 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. | Keywords: | Pear juice; Phenolic compounds; Pilot-scale; Spiral-filter press;pear juice; phenolic compounds; pilot-scale; spiral-filter press | Document URI: | http://hdl.handle.net/1942/18663 | ISSN: | 0308-8146 | e-ISSN: | 1873-7072 | DOI: | 10.1016/j.foodchem.2014.10.018 | ISI #: | 000347755800109 | Rights: | © 2014 Elsevier Ltd. All rights reserved. | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2016 |
Appears in Collections: | Research publications |
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