Comparison of composition thermal behaviour and polymorphism of pink guava (Psidium guajava) seed oil-palm stearin blends and lard


Citation

Noor Raihana Abd. Rahman, . and Marikkar J. M. N., . and Jaswir I., . and Nurrulhidayah Ahmad Fadzlillah, . and Miskandar Mat Sahri, . Comparison of composition thermal behaviour and polymorphism of pink guava (Psidium guajava) seed oil-palm stearin blends and lard. S348-S354. ISSN 2231-7546

Abstract

A study was carried out to compare composition thermal behavior and polymorphic forms of palm stearin-pink guava seed oil blends with those of lard (LD). Four blends were prepared by mixing pink guava seed oil (PGO) with and palm stearin (PS) in different ratios: PGO-1 40:60; PGO-2 45:55; PGO-3 50:50; PGO-4; 55:45. The blends and lard were compared in terms of their basic physicochemical parameters fatty acid and triacylglycerol (TAG) compositions melting solidification and polymorphic properties. Results showed that PGO-2 and LD were found to display similarities in terms of slip melting point value and the peak maximum of the high-melting thermal transition. In the solid fat content (SFC) profile PGO-2 and LD were found to display the least difference. In the X-ray diffraction analysis PGO-2 displayed both and polymorphs that were similar to the polymorphic form of LD.


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Abstract

A study was carried out to compare composition thermal behavior and polymorphic forms of palm stearin-pink guava seed oil blends with those of lard (LD). Four blends were prepared by mixing pink guava seed oil (PGO) with and palm stearin (PS) in different ratios: PGO-1 40:60; PGO-2 45:55; PGO-3 50:50; PGO-4; 55:45. The blends and lard were compared in terms of their basic physicochemical parameters fatty acid and triacylglycerol (TAG) compositions melting solidification and polymorphic properties. Results showed that PGO-2 and LD were found to display similarities in terms of slip melting point value and the peak maximum of the high-melting thermal transition. In the solid fat content (SFC) profile PGO-2 and LD were found to display the least difference. In the X-ray diffraction analysis PGO-2 displayed both and polymorphs that were similar to the polymorphic form of LD.

Additional Metadata

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Item Type: Article
AGROVOC Term: Psidium
AGROVOC Term: Psidium guajava
AGROVOC Term: Guavas
AGROVOC Term: Extraction
AGROVOC Term: Blending
AGROVOC Term: Mixing
AGROVOC Term: Thermal analysis
AGROVOC Term: High performance liquid chromatography
AGROVOC Term: Fatty acids
AGROVOC Term: Lipids
Geographical Term: Malaysia
Depositing User: Ms. Suzila Mohamad Kasim
Last Modified: 28 Apr 2025 05:34
URI: http://webagris.upm.edu.my/id/eprint/23953

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