首页|In-depth characterization of palm-based diacylglycerol-virgin coconut oil blends with enhanced techno-functional properties

In-depth characterization of palm-based diacylglycerol-virgin coconut oil blends with enhanced techno-functional properties

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  • NSTL
  • Elsevier
The present research provides an overview of the physicochemical characteristics and the thermal profile of palm olein-based diacylglycerol (POL-DAG), virgin coconut oil (VCO) and their binary blends at specific ratios. The characterization of the POL-DAG/VCO blends, including their fatty acid composition, acylglycerol composition, functional group based on Fourier-transform infrared (FTIR) spectra, thermal performance, solid fat content and iodine value were carefully evaluated. The fatty acid composition and iodine value indicated the increased unsaturation levels of the oil blends with increasing POL-DAG oil incorporation. Based on the acylglycerol composition, the DAG content of the binary blends increased proportionally from 346.7 g/kg to 816.0 g/kg with the increased concentration of POL-DAG. Furthermore, the oil blends exhibited lower solid fat content values than the plain VCO. The melting and crystallization results also showed that blending produced a significant effect on the temperature transition, the peak sharpness and the onset temperature (p < 0.05) as the POL-DAG concentration increased. The FTIR spectra were also consistent with this finding as POL-DAG contains more unsaturated fatty acids than VCO. All in all, the blending of POL-DAG with VCO enhanced the techno-functional properties of the oil and could widen the range of applications and useful for product diversifications.

Oil blendingDiacylglycerolvirgin coconut oilSolid fat contentDifferential scanning calorimetry

Ng, Siou Pei、Khor, Yih Phing、Lim, Hong Kwong、Lai, Oi Ming、Wang, Yong、Wang, Yonghua、Nehdi, Imededdine Arbi、Tan, Chin Ping

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Tunku Abdul Rahman Univ Coll, Fac Sci Appl, Dept Biosci, Jalan Genting Kelang, Kuala Lumpur 53300, Malaysia

Univ Putra Malaysia, Fac Food Sci & Technol, Dept Food Technol, Serdang 43400, Selangor, Malaysia

Univ Putra Malaysia, Fac Biotechnol & Biomol Sci, Dept Bioproc Technol, Serdang 43400, Selangor, Malaysia

Jinan Univ, Dept Food Sci & Engn, JNU UPM Int Joint Lab Plant Oil Proc & Safety POP, Guangzhou 510632, Peoples R China

South China Univ Technol, Sch Food Sci & Engn, Guangdong Res Ctr Lipid Sci & Appl Engn Technol, Guangzhou 510640, Peoples R China

King Saud Univ, Chem Dept, Coll Sci, POB 2455, Riyadh 11451, Saudi Arabia

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2021

10.1016/j.lwt.2021.111327

LWT-Food Science & Technology

LWT-Food Science & Technology

ISSN：0023-6438
年,卷(期)：2021.145
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