Premium
Structural and rheological properties of medium‐chain triacylglyceride oleogels
Author(s) -
Fayaz Goly,
Polenghi Ombretta,
Giardina Agata,
Cerne Virna,
Calligaris Sonia
Publication year - 2021
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/ijfs.14757
Subject(s) - wax , beeswax , rheology , raw material , rapeseed , chemistry , chromatography , food science , sunflower oil , chemical engineering , materials science , organic chemistry , composite material , engineering
Summary This research studied the effect of gelator molecules on structural properties of oleogels containing medium‐chain triacylglycerides (MCTs). To this aim, a large selection of gelators (rapeseed wax RAW, rice wax RW, sunflower wax SW, beeswax BW, monoglycerides MG, and γ‐oryzanol and β‐sitosterol mixture γ+β) at increasing concentrations (5–15% w/w) was considered. Results showed that RAW was not able to structure MCT at any concentration. However, addition of 5% (w/w) of MG, SW and BW resulted to a self‐standing gel. Regarding γ+β and RW, gel structures were generated at 10% (w/w). By increasing the concentration, a reinforcement of the network strength was highlighted by the progressive increase of the rheological parameters. The strongest oleogel obtained by γ+β at 10% (w/w) and further BW and RW at 15% (w/w) concentration. These findings could provide interesting information in the choice of the best performing MCT structuring agent for intended food applications.