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Studies on the acceptability, sensor properties & consumer perception of reformulated reduced sodium ready-meals.

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dc.contributor.advisor Brunton, Nigel
dc.contributor.advisor Wilkinson, Martin G.
dc.contributor.author Mitchell, Michelle Mary
dc.date.accessioned 2012-02-14T12:00:12Z
dc.date.available 2012-02-14T12:00:12Z
dc.date.issued 2011
dc.identifier.uri http://hdl.handle.net/10344/1972
dc.description peer-reviewed en_US
dc.description.abstract The thesis was undertaken to determine the effect of salt reduction and the addition of salt substitutes/flavour enhancers on the sensory acceptability of commercial frozen and chilled ready-meals. High salt concentrations were found in a number of readymeals sold commercially in Ireland. Despite adverse consumer attitudes to these products they remained a popular food choice with consumers. Sensory analyses conducted to determine the effect of a number of salt reduction strategies on three frozen ready-meals found that salt levels in chicken curry ready-meals could be reduced by 33%, by 50% in chilli con carne ready-meals and by 29% in lasagne ready-meals. The addition of commercially available salt substitutes or flavour enhancers into these meals allowed further salt reductions ranging from 48 to 66%. The impact of salt reductions on the sensory characteristics and volatile composition of three chilled ready-meals was determined using flavor profile descriptive sensory analysis coupled with solid-phase microextraction (SPME) and gas chromatography mass spectrometry (GC-MS) instrumental analysis. This approach identified several significant flavour/textural differences as affected by salt reductions. Reformulation by addition of selected spice blends into reduced salt cottage pie and chicken supreme ready-meals resulted in acceptability scores comparable to commercial regular salt counterparts. Finally, reformulation of reduced salt vegetable soup with added whey protein (lactoferrin) hydrolysate or rosemary significantly increased acceptability over its commercial regular salt counterpart. Interestingly, salt taste detection and recognition thresholds had no significant effect (p>0.05) on consumer acceptability or purchase intent of a series of regular and reduced salt vegetable soups. Overall, this thesis provided a detailed insight into the sensory aspects of reformulation strategies for salt reduction in frozen and chilled ready-meals. en_US
dc.description.sponsorship FIRM en_US
dc.description.sponsorship Teagasc Walsh Fellowship Scheme
dc.language.iso eng en_US
dc.publisher University of Limerick en_US
dc.subject salt substitutes en_US
dc.subject flavour enhancers en_US
dc.subject ready-meals en_US
dc.title Studies on the acceptability, sensor properties & consumer perception of reformulated reduced sodium ready-meals. en_US
dc.type Doctoral thesis en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.type.supercollection ul_theses_dissertations en_US
dc.type.restriction open en

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