The Effect of Prime Emulsion Components As a Function of Equilibrium Headspace Concentration of Soursop Flavor Compounds

aut.relation.articlenumber1en_NZ
aut.relation.endpage23
aut.relation.startpage23
aut.relation.volume8en_NZ
aut.researcherHamid, Nazimah
dc.contributor.authorCheong, KWen_NZ
dc.contributor.authorTan, CPen_NZ
dc.contributor.authorMirhosseini, Hen_NZ
dc.contributor.authorJoanne-Kam, WYen_NZ
dc.contributor.authorHamid, NSAen_NZ
dc.contributor.authorOsman, Aen_NZ
dc.contributor.authorBasri, Men_NZ
dc.date.accessioned2014-10-19T21:24:15Z
dc.date.accessioned2016-08-31T04:33:30Z
dc.date.available2014-10-19T21:24:15Z
dc.date.available2016-08-31T04:33:30Z
dc.date.copyright2014en_NZ
dc.date.issued2014en_NZ
dc.description.abstractBackground: Perceptions of food products start when flavor compounds are released from foods, transported and appropriate senses in the oral and nose are triggered. However, the long-term stability of flavor compounds in food product has been a major concern in the food industry due to the complex interactions between key food ingredients (e.g., polysaccharides and proteins). Hence, this study was conducted to formulate emulsion-based beverage using natural food emulsifiers and to understand the interactions between emulsion compositions and flavor compounds. Results: The influences of modified starch (x1), whey protein isolate (x2), soursop flavor oil (x3) and deionized water (x4) on the equilibrium headspace concentration of soursop volatile flavor compounds were evaluated using a four-component with constrained extreme vertices mixture design. The results indicated that the equilibrium headspace concentration of soursop flavor compounds were significantly (p < 0.05) influenced by the matrix and structural compositions of the beverage emulsions. Interface formed using modified starch and whey protein isolate (WPI) proved to be capable of inhibiting the release of volatile flavor compounds from the oil to the aqueous phase. Modified starch could retard the overall flavor release through its hydrophobic interactions with volatile flavor compounds and viscosity enhancement effect. Excessive amount of modified starch was also shown to be detrimental to the stability of emulsion system. However, both modified starch and WPI showed to be a much more effective barrier in inhibiting the flavor release of flavor compounds when used as individual emulsifier than as a mixture. Conclusions: Overall, the mixture design can be practical in elucidating the complex interactions between key food components and volatile flavor compounds in an emulsion system. These studies will be useful for the manufacturers for the formulation of an optimum beverage emulsion with desirable emulsion properties and desirable flavor release profile.
dc.identifier.citationChemistry Central Journal, vol.8, pp.23 - 23en_NZ
dc.identifier.doi10.1186/1752-153X-8-23en_NZ
dc.identifier.urihttps://hdl.handle.net/10292/10012
dc.publisherSpringerOpen
dc.relation.replaceshttp://hdl.handle.net/10292/7744
dc.relation.replaces10292/7744
dc.relation.urihttp://dx.doi.org/10.1186/1752-153X-8-23
dc.rights© Cheong et al.; licensee Chemistry Central Ltd. 2014 This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.
dc.rights.accessrightsOpenAccessen_NZ
dc.subjectMixture design; Modified starch; Whey protein isolate; Soursop beverage emulsion; Polysaccharide-protein interactions
dc.titleThe Effect of Prime Emulsion Components As a Function of Equilibrium Headspace Concentration of Soursop Flavor Compoundsen_NZ
dc.typeJournal Article
pubs.elements-id165404
pubs.organisational-data/AUT
pubs.organisational-data/AUT/Health & Environmental Science
pubs.organisational-data/AUT/Health & Environmental Science/School of Science
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