Mass transfer kinetics during osmotic dehydration of cherry tomatoes pre-treated by high hydrostatic pressure

Dermesonlouoglou, EK; Boulekou, S; Taoukis, PS

dc.contributor.author	Dermesonlouoglou, EK	en
dc.contributor.author	Boulekou, S	en
dc.contributor.author	Taoukis, PS	en
dc.date.accessioned	2014-03-01T02:51:45Z
dc.date.available	2014-03-01T02:51:45Z
dc.date.issued	2008	en
dc.identifier.issn	05677572	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35618
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-84855384304&partnerID=40&md5=35be9697590509338ac50b4f51de8930	en
dc.subject	HHP	en
dc.subject	Lycopersicon esculentum	en
dc.subject	Modelling	en
dc.subject	Osmotic dehydration	en
dc.subject	Solid gain	en
dc.subject	Water loss	en
dc.subject.other	Lycopersicon esculentum	en
dc.subject.other	Lycopersicon esculentum var. cerasiforme	en
dc.title	Mass transfer kinetics during osmotic dehydration of cherry tomatoes pre-treated by high hydrostatic pressure	en
heal.type	conferenceItem	en
heal.publicationDate	2008	en
heal.abstract	The effect of high hydrostatic pressure pre-treatment (200 and 600 MPa for 10 and 20 min at 20 and 40°C) on the mass transfer kinetics (water loss and solid gain) during osmotic dehydration of cherry tomatoes was investigated. When subjected to high pressure treatment prior to osmotic dehydration half cherry tomatoes showed increasing mass transfer with increasing temperature. High pressure pre-treatment enhanced both water loss and solid gain rates during osmotic dehydration and accelerate the process. Experimentally determined diffusivity values, based on Fickian model, increased fourfold for water and twofold for total solids. The increase can be attributed to breaking-up of cell walls which facilitated to transport of water. Pretreatment pressure increase (from 200 to 600 MPa) seemed not to have effect on OD mass transfer kinetics of cherry tomatoes; the temperature increase (from 20 to 40°C) caused higher diffusivity of water and solids.	en
heal.journalName	Acta Horticulturae	en
dc.identifier.volume	802	en
dc.identifier.spage	127	en
dc.identifier.epage	132	en