| ชื่อเรื่อง | : | Sopark Sonwai, Pawitchaya Podchong and Dérick Rousseau. 2016. Crystallization kinetics of coconut oil in the presence of sorbitan esters with different fatty acid moieties. Journal of the American Oil Chemists’ Society. 93(6), 849-858. |
| Link | : | DOI: 10.1007/s11746-016-2828-3 |
| บทคัดย่อ | : | Sorbitan esters (SEs) are shown to strongly
influence the solidification kinetics and fat crystal morphology,
but not polymorphic behaviour, of coconut oil (CNO).
Solid-state SEs (sorbitan monopalmitate, monostearate,
and tristearate) affect both the high- and low-melting fractions
of CNO by decreasing induction time and by increasing
crystallization rate as well as the number concentration
of crystals. Liquid-state SEs (sorbitan monoleate and
trioleate) and canola oil do not specifically influence the
high- or low-melting fraction of CNO but do slow crystallization
and lengthen induction time. The influence of sorbitan
monolaurate, the only SE with an acyl group similar
to that of CNO, is shown to depend on the crystallization
temperature. At temperatures below its melting point, it
only affects CNO’s high-melting fraction; at temperatures
above its melting point, crystallization of both fractions is
extensively decelerated. The lack of influence in polymorphic
behaviour by any SE confirms no alteration of subcell
arrangement, suggesting a lack of complementarity with
the crystallizing fat. Overall, these SEs significantly impact
the crystallization kinetics of CNO; however, this largely
depends on type and concentration. |
| ผู้จัดทำ | : | 56403801 : นางสาวปวิชญา โภชฌงค์
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