title: Pervaporation investigation of recovery of volatile compounds from brown crab boiling juice.
abstract: Pervaporation has been used to obtain aroma concentrates from brown crab boiling juice. The boiling juice and the obtained permeate have been analysed by Headspace Solid Phase Dynamic Extraction Gas Chromatography/Mass Spectrometry. The effect of feed temperature on the pervaporation performance of the membrane has been analysed. The permeate aroma profile, at 25 ℃ and 40 ℃, was different from that of the boiling juice. Enrichment factors for some of the volatile compounds were much lower than those obtained in model aqueous dilute solutions. Pervaporation performance can be significantly improved by modifying the permeant circuit to include two condensation stages.
authors.affiliation: Department of Biotechnology and Food Science, University of Burgos, Burgos, Spain.
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Martínez
authors.affiliation: Department of Biotechnology and Food Science, University of Burgos, Burgos, Spain tersanz@ubu.es.
authors.forename: M Teresa
authors.initials: MT
authors.lastname: Sanz
authors.affiliation: Department of Biotechnology and Food Science, University of Burgos, Burgos, Spain.
authors.forename: Sagrario
authors.initials: S
authors.lastname: Beltrán
mesh_terms: D000818:Animals; D003386:Brachyura; D003296:Cooking; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D009812:Odorants / Q000032:analysis*; D012758:Shellfish; D052617:Solid Phase Microextraction; D012996:Solutions / Q000737:chemistry*; D013696:Temperature; D055549:Volatile Organic Compounds / Q000032:analysis*; D014867:Water
chemical_list: D012996:Solutions; D055549:Volatile Organic Compounds; D014867:Water
keywords: Volatile compounds; brown crab effluent; pervaporation