English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/57659
Title: Characterisation and functionality of fructo-oligosaccharides affecting water status of strawberry fruit (Fragraria vesca cv. Mara de Bois) during postharvest storage
Authors: Blanch Rojo, M.; Goñi Ramos, Oscar; Sánchez Ballesta, M. Teresa; Escribano, M. Isabel; Merodio, Carmen
Issue Date: 2012
Publisher: Elsevier
Citation: Food Chemistry 134: 912- 919 (2012)
Abstract: Water status and analyses of free sugars, sugar-alcohols and fructo-oligosaccharides (FOS) were carried out in Fragaria x vesca treated with different high CO 2 concentrations applied to minimise damage caused by storage at 0°C. The thermodynamic parameters such as the amount of unfrozen water (U w), T g, Tg′, and peak position of the O-H stretching vibration were determined in various saccharides including FOS (1-kestose, nystose and kestopentaose) by infrared spectroscopy studies and differential scanning calorimetry. Beneficial high CO 2 treatment (20%) avoided the reduction of unfreezable water fraction and increased endogenous FOS levels, in contrast to that observed in air-stored and in those exposed to higher CO 2 levels (40%). The direct FOS-water interaction, possibly within the hydrogen-bond network of cellular structures, could explain the maintenance of water status, cell integrity and the low water leakage levels in 20% CO 2-treated fruit at values similar to those found in freshly harvested fruit. © 2012 Elsevier Ltd. All rights reserved.
URI: http://hdl.handle.net/10261/57659
Identifiers: doi: 10.1016/j.foodchem.2012.02.203
issn: 0308-8146
DOI: 10.1016/j.foodchem.2012.02.203
Appears in Collections:(ICTAN) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
Show full item record

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.