Impact of flavour solvent on biscuit micro-structure as measured by X-ray micro-computed tomography and the distribution of vanillin and HMF (HPLC)

The influence of flavour solvent, propylene glycol (PG) and triacetin (TA), was investigated on the micro-structure (as measured by X-ray micro-Computed Tomography, X-ray μCT) and aroma compound distribution (as measured by HPLC) within shortcake biscuits. X-ray μCT scanning showed biscuits made wit...

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Main Authors: Yang, Ni, Fisk, Ian D., Linforth, Rob S.T., Brown, Keith, Walsh, Stuart, Mooney, Sacha J., Sturrock, Craig, Hort, Joanne
Format: Article
Published: Springer Verlag (Germany) 2012
Online Access:https://eprints.nottingham.ac.uk/2629/
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author Yang, Ni
Fisk, Ian D.
Linforth, Rob S.T.
Brown, Keith
Walsh, Stuart
Mooney, Sacha J.
Sturrock, Craig
Hort, Joanne
author_facet Yang, Ni
Fisk, Ian D.
Linforth, Rob S.T.
Brown, Keith
Walsh, Stuart
Mooney, Sacha J.
Sturrock, Craig
Hort, Joanne
author_sort Yang, Ni
building Nottingham Research Data Repository
collection Online Access
description The influence of flavour solvent, propylene glycol (PG) and triacetin (TA), was investigated on the micro-structure (as measured by X-ray micro-Computed Tomography, X-ray μCT) and aroma compound distribution (as measured by HPLC) within shortcake biscuits. X-ray μCT scanning showed biscuits made with PG had smaller pores and higher porosity than biscuits made with TA. Vanillin distribution across the biscuits was not homogeneous and was found at higher concentrations in the centre of the biscuits than the edge or bottom. The baked aroma compound 5-hydroxymethyl-furfural (HMF) was present at higher concentrations at the surface of the biscuits where Maillard chemistry is presumed to occur at its highest rate. The type of solvent had a significant effect on the total concentration and distribution of aroma compounds (p < 0.05). TA biscuits retained greater vanillin and more HMF was formed during baking when compared to PG biscuits. The core of TA biscuits had (on a relative scale) a much greater vanillin and lower HMF concentration than PG biscuits when compared to their periphery. Although this may be due to different physicochemical properties of the two solvents and varying levels of interactions with other ingredients, the micro-structure differences indicated by X-ray μCT image analysis illustrate one potential route by which the flavour solvent may be influencing the generation and stability of biscuit aroma compounds.
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institution University of Nottingham Malaysia Campus
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publishDate 2012
publisher Springer Verlag (Germany)
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spelling nottingham-26292020-05-04T20:21:09Z https://eprints.nottingham.ac.uk/2629/ Impact of flavour solvent on biscuit micro-structure as measured by X-ray micro-computed tomography and the distribution of vanillin and HMF (HPLC) Yang, Ni Fisk, Ian D. Linforth, Rob S.T. Brown, Keith Walsh, Stuart Mooney, Sacha J. Sturrock, Craig Hort, Joanne The influence of flavour solvent, propylene glycol (PG) and triacetin (TA), was investigated on the micro-structure (as measured by X-ray micro-Computed Tomography, X-ray μCT) and aroma compound distribution (as measured by HPLC) within shortcake biscuits. X-ray μCT scanning showed biscuits made with PG had smaller pores and higher porosity than biscuits made with TA. Vanillin distribution across the biscuits was not homogeneous and was found at higher concentrations in the centre of the biscuits than the edge or bottom. The baked aroma compound 5-hydroxymethyl-furfural (HMF) was present at higher concentrations at the surface of the biscuits where Maillard chemistry is presumed to occur at its highest rate. The type of solvent had a significant effect on the total concentration and distribution of aroma compounds (p < 0.05). TA biscuits retained greater vanillin and more HMF was formed during baking when compared to PG biscuits. The core of TA biscuits had (on a relative scale) a much greater vanillin and lower HMF concentration than PG biscuits when compared to their periphery. Although this may be due to different physicochemical properties of the two solvents and varying levels of interactions with other ingredients, the micro-structure differences indicated by X-ray μCT image analysis illustrate one potential route by which the flavour solvent may be influencing the generation and stability of biscuit aroma compounds. Springer Verlag (Germany) 2012-12 Article PeerReviewed Yang, Ni, Fisk, Ian D., Linforth, Rob S.T., Brown, Keith, Walsh, Stuart, Mooney, Sacha J., Sturrock, Craig and Hort, Joanne (2012) Impact of flavour solvent on biscuit micro-structure as measured by X-ray micro-computed tomography and the distribution of vanillin and HMF (HPLC). European Food Research and Technology, 235 (6). pp. 1083-1091. ISSN 1438-2377 http://link.springer.com/article/10.1007%2Fs00217-012-1837-1 doi:10.1007/s00217-012-1837-1 doi:10.1007/s00217-012-1837-1
spellingShingle Yang, Ni
Fisk, Ian D.
Linforth, Rob S.T.
Brown, Keith
Walsh, Stuart
Mooney, Sacha J.
Sturrock, Craig
Hort, Joanne
Impact of flavour solvent on biscuit micro-structure as measured by X-ray micro-computed tomography and the distribution of vanillin and HMF (HPLC)
title Impact of flavour solvent on biscuit micro-structure as measured by X-ray micro-computed tomography and the distribution of vanillin and HMF (HPLC)
title_full Impact of flavour solvent on biscuit micro-structure as measured by X-ray micro-computed tomography and the distribution of vanillin and HMF (HPLC)
title_fullStr Impact of flavour solvent on biscuit micro-structure as measured by X-ray micro-computed tomography and the distribution of vanillin and HMF (HPLC)
title_full_unstemmed Impact of flavour solvent on biscuit micro-structure as measured by X-ray micro-computed tomography and the distribution of vanillin and HMF (HPLC)
title_short Impact of flavour solvent on biscuit micro-structure as measured by X-ray micro-computed tomography and the distribution of vanillin and HMF (HPLC)
title_sort impact of flavour solvent on biscuit micro-structure as measured by x-ray micro-computed tomography and the distribution of vanillin and hmf (hplc)
url https://eprints.nottingham.ac.uk/2629/
https://eprints.nottingham.ac.uk/2629/
https://eprints.nottingham.ac.uk/2629/