Modification of hydrogenated canola oil/palm stearin/canola oil blends by continuous enzymatic interesterification

Cho F., . and deMan J.M., . and Allen O.B., . Modification of hydrogenated canola oil/palm stearin/canola oil blends by continuous enzymatic interesterification. pp. 25-38. ISSN 0128-1828

Three fat blends containing hydrogenated canola oil (HCO) palm stearin and canola oil (45/25/30) were interesterified in a temperature and moisture controlled packed column reactor. The moisture of the fats was controlled by a pre-column packed with Biobone (a granulated chicken bone material possessing good mechanical strength). The changes in the composition of the major triglycerides (C48 C50 C52 and C54) were followed by GLC. Both the moisture content of the Biobone and the flow rate significantly affected the composition of C48 C52 and C54 tryglycerides during interesterification. Other factors such as the age of the Lipozyme used and that of the Biobone also contributed to the variation in C48 C50 and C52 composition. An increase of more than 50 of C52 in the interesterified blends indicated that a large portion of the palmatic acid residues from the palm stearin were exchanged with an 18 carbon fatty acid present in the C54 molecules of the canola products. A flow rate of 11.4 g/h and a moisture content between 13.2 and 19.2 were most effective for interesterification. However the higher levels of free fatty acids (FFA) monoglycerides (MG) and diglycerides (DG) detected in the interesterified blends as compared with the control blends indicated that some degree of hydrolysis also occurred; the total amounts of FFA MG and DG were higher by 5.9 to 13.0 in the interesterified blends

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Abstract

Three fat blends containing hydrogenated canola oil (HCO) palm stearin and canola oil (45/25/30) were interesterified in a temperature and moisture controlled packed column reactor. The moisture of the fats was controlled by a pre-column packed with Biobone (a granulated chicken bone material possessing good mechanical strength). The changes in the composition of the major triglycerides (C48 C50 C52 and C54) were followed by GLC. Both the moisture content of the Biobone and the flow rate significantly affected the composition of C48 C52 and C54 tryglycerides during interesterification. Other factors such as the age of the Lipozyme used and that of the Biobone also contributed to the variation in C48 C50 and C52 composition. An increase of more than 50 of C52 in the interesterified blends indicated that a large portion of the palmatic acid residues from the palm stearin were exchanged with an 18 carbon fatty acid present in the C54 molecules of the canola products. A flow rate of 11.4 g/h and a moisture content between 13.2 and 19.2 were most effective for interesterification. However the higher levels of free fatty acids (FFA) monoglycerides (MG) and diglycerides (DG) detected in the interesterified blends as compared with the control blends indicated that some degree of hydrolysis also occurred; the total amounts of FFA MG and DG were higher by 5.9 to 13.0 in the interesterified blends

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Item Type:	Article
Additional Information:	Summary (En)
AGROVOC Term:	ACEITES VEGETALES
AGROVOC Term:	ESTEARINA
AGROVOC Term:	PALMAS OLEAGINOSAS
AGROVOC Term:	ESTERIFICACION
AGROVOC Term:	ENZIMAS
AGROVOC Term:	HIDROLISIS
AGROVOC Term:	ACIDOS GRASOS
AGROVOC Term:	TRIGLICERIDOS
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:57
URI:	http://webagris.upm.edu.my/id/eprint/20969

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