Article (Scientific journals)
Chemical profiling of the major components in natural waxes to elucidate their role in liquid oil structuring
Doan, Chi Diem; To, Chak Ming; De Vrieze, Mike et al.
2017In Food Chemistry, 214, p. 717-725
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Keywords :
Wax, Chemical components; HPLC, GC–MS, X-ray; Gelation
Abstract :
[en] Elucidating the composition of waxes is of utmost importance to explain their behavior in liquid oil structuring. The chemical components (hydrocarbons – HCs, free fatty acids – FFAs, free fatty alcohols – FALs and wax esters – WEs) of natural waxes were analyzed using HPLC–ELSD and GC–MS followed by evaluation of their oil structuring properties. The gel strength, including the average storage modulus and oscillation yield stress, displayed a negative correlation with FALs and a positive correlation with HCs, FFAs and WEs. The components dictating the gel strength are HCs, FFAs and WEs in a descending order of importance. The consistency of the oleogels increased with the increasing amount of FFAs and HCs and the decreasing amount of WEs and FALs. The presence of more WEs results in a strong but brittle gel with a high initial flow yield stress. We believe these results might be useful in selecting the right waxes to combine in certain fat-based food products.
Disciplines :
Food science
Author, co-author :
Doan, Chi Diem
To, Chak Ming
De Vrieze, Mike
Lynen, Frederic
Danthine, Sabine  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Science des alim. et formul.
Brown, Allison
Dewettinck, Koen
Patel, Ashok R.
Language :
English
Title :
Chemical profiling of the major components in natural waxes to elucidate their role in liquid oil structuring
Publication date :
2017
Journal title :
Food Chemistry
ISSN :
0308-8146
eISSN :
1873-7072
Publisher :
Elsevier Science, Oxford, United Kingdom
Special issue title :
214
Volume :
214
Pages :
717-725
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 03 October 2016

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