Document Detail

Increased significance of food wastes: Selective recovery of added-value compounds.
MedLine Citation:
PMID:  22980828     Owner:  NLM     Status:  In-Data-Review    
A single-step selective separation of two food additives was investigated using alcohol-salt aqueous two-phase systems (ATPS). The selective partitioning of two of the most used additives from a processed food waste material, vanillin and l-ascorbic acid, was successfully accomplished. The results obtained prove that alcohol-salt ATPS can be easily applied as cheaper processes for the selective recovery of valuable chemical products from food wastes and other sources. As a first approach, the phase diagrams of ATPS composed of different alcohol+inorganic salt+water were determined at 298 (±1)K and atmospheric pressure. The influence of methanol, ethanol, 1-propanol, and 2-propanol and K(3)PO(4), K(2)HPO(4) or KH(2)PO(4)/K(2)HPO(4) in the design of the phase diagrams was addressed. After the evaluation of the phase diagrams behaviour, the influence of the phase forming constituents was assessed towards the partition coefficients and recovery percentages of vanillin and l-ascorbic acid among the coexisting phases. Both model systems and real processed food waste materials were employed. Using these ATPS as partitioning systems it is possible to recover and separate vanillin, which migrates for the alcohol-rich phase, from l-ascorbic acid, which preferentially partitions for the salt-rich phase.
Igor A O Reis; Samuel B Santos; Ludmila A Santos; Naiana Oliveira; Mara G Freire; Jorge F B Pereira; Sónia P M Ventura; João A P Coutinho; Cleide M F Soares; Alvaro S Lima
Related Documents :
14999788 - Dietary acrylamide and risk of renal cell cancer.
15584258 - Long-term sterility of orthodontic-surgical appliances.
19524248 - Determination of aromatic amines in food products and composite food packaging bags by ...
19938328 - Technological challenges of addressing new and more complex migrating products from nov...
10958328 - Food groups and oesophageal cancer risk in vaud, switzerland.
10234028 - Differential regulation of the expression of corticotropin-releasing factor receptor ty...
Publication Detail:
Type:  Journal Article     Date:  2012-07-13
Journal Detail:
Title:  Food chemistry     Volume:  135     ISSN:  0308-8146     ISO Abbreviation:  Food Chem     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-09-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7702639     Medline TA:  Food Chem     Country:  England    
Other Details:
Languages:  eng     Pagination:  2453-61     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Programa de Pós-Graduação em Engenharia de Processos, Universidade Tiradentes, Av. Murilo Dantas 300, Farolândia. CEP: 49032-490, Aracaju-SE, Brazil.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Volatile composition of partially fermented wines elaborated from sun dried Pedro Ximénez grapes.
Next Document:  Kinetics of temperature increase during tomato processing modulate the bioaccessibility of lycopene.