Phase behaviour of high medium and low melting fractions in lauric fat blends formulated based on melting triacylglycerol group

Nusantoro Bangun, . and Yanty Noorzianna Manaf, . and Walle Davy Van De, . and Bockstaele Filip Van, . and Dewettinck Koen, . Phase behaviour of high medium and low melting fractions in lauric fat blends formulated based on melting triacylglycerol group. pp. 347-359. ISSN 1511-2780

Lauric fat blends aimed for bakery shortening were prepared as a ternary mixture characterised by three distinct melting peaks on their differential scanning calorimeter (DSC) melting thermograms. Those melting peaks closely correlated to the high medium and low melting fractions (HMF MMF and LMF) in the blends. In the simpler binary mixture hard fats (i.e. palm stearin and fully hydrogenated rapeseed oil) formed an ideal solubility in different liquid oils i.e. medium chain triacylglycerol oil (MCT-oil) and high oleic sunflower oil (HOSO). However slight deviations from ideality were observed when liquid oils were replaced by lauric oils (i.e. palm kernel oil and coconut oil). In the more complex ternary mixture the HMF formed an ideal solubility in both the MMF and LMF within the range of given formulas. In addition the interaction of solid crystals in lauric fat blends was of monotectic behaviour as shown in the isosolid diagram. Nevertheless the influence of solubility seemed to override that of solid interaction. Both the solubility curves and isosolid lines can provide valuable information about the interaction of HMF MMF and LMF in lauric fat blends. Therefore they are useful for improving the formulation of plastic fats.

Full text available from: Official URL: http://jopr.mpob.gov.my/wp-content/uploads/2021/06...

Abstract

Lauric fat blends aimed for bakery shortening were prepared as a ternary mixture characterised by three distinct melting peaks on their differential scanning calorimeter (DSC) melting thermograms. Those melting peaks closely correlated to the high medium and low melting fractions (HMF MMF and LMF) in the blends. In the simpler binary mixture hard fats (i.e. palm stearin and fully hydrogenated rapeseed oil) formed an ideal solubility in different liquid oils i.e. medium chain triacylglycerol oil (MCT-oil) and high oleic sunflower oil (HOSO). However slight deviations from ideality were observed when liquid oils were replaced by lauric oils (i.e. palm kernel oil and coconut oil). In the more complex ternary mixture the HMF formed an ideal solubility in both the MMF and LMF within the range of given formulas. In addition the interaction of solid crystals in lauric fat blends was of monotectic behaviour as shown in the isosolid diagram. Nevertheless the influence of solubility seemed to override that of solid interaction. Both the solubility curves and isosolid lines can provide valuable information about the interaction of HMF MMF and LMF in lauric fat blends. Therefore they are useful for improving the formulation of plastic fats.

[error in script]

Item Type:	Article
AGROVOC Term:	Vegetable oils
AGROVOC Term:	Vegetable fats
AGROVOC Term:	Triacylglycerols
AGROVOC Term:	Solubility
AGROVOC Term:	Fatty acids
AGROVOC Term:	Chemical composition
AGROVOC Term:	Melting point
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:55
URI:	http://webagris.upm.edu.my/id/eprint/9941

Actions (login required)

View Item