Effect of osmotic dehydration on color and sorption characteristics of apple and banana

Krokida, MK; Karathanos, VT; Maroulis, ZB

dc.contributor.author	Krokida, MK	en
dc.contributor.author	Karathanos, VT	en
dc.contributor.author	Maroulis, ZB	en
dc.date.accessioned	2014-03-01T01:15:34Z
dc.date.available	2014-03-01T01:15:34Z
dc.date.issued	2000	en
dc.identifier.issn	0737-3937	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13597
dc.subject	osmotic dehydration	en
dc.subject	air drying	en
dc.subject	sorption isotherms	en
dc.subject	color kinetics	en
dc.subject	apple	en
dc.subject	banana	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.other	HEAT	en
dc.title	Effect of osmotic dehydration on color and sorption characteristics of apple and banana	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/07373930008917745	en
heal.identifier.secondary	http://dx.doi.org/10.1080/07373930008917745	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	Color and sorption characteristics of osmotically treated and air dried apple and banana were studied during air drying at 70 degrees C. The color parameters: Lightness (L), Redness (a) and Yellowness (b) were studied, using a Hunter Lab chromatometer. ii first order kinetic model was fitted to the experimental data adequately for color parameters, while sorption data for treated and air dried products were fitted to the GAB model. Untreated fruits showed an extensive browning which was monitored by a significant drop of the lightness (L) and an increase of redness (a) and yellowness (b). Osmotically pretreated samples did not brown as much as the untreated samples and the lightness L decreased only slightly while a, b increased slightly. Osmotic pretreatment resulted in a shift in sorption isotherm for both fruits. Osmotic dehydration prevented color damages and decreased the sorption capacity of dehydrated products.	en
heal.publisher	MARCEL DEKKER INC	en
heal.journalName	DRYING TECHNOLOGY	en
dc.identifier.doi	10.1080/07373930008917745	en
dc.identifier.isi	ISI:000086414400006	en
dc.identifier.volume	18	en
dc.identifier.issue	4-5	en
dc.identifier.spage	937	en
dc.identifier.epage	950	en