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Glycerolysis-Interesterification of Palm Olein and Coconut Oil Blend using Two High-Shear Continuous Stirred Tank Reactors

Ardani Aulia Safrina, Millati Ria, Yanti Rini, Rohana Nanda Legiasa Rabiul Tsani, Hidayat Chusnul

Polish Journal of Chemical Technology

2023

Vol. 25, nr 4

1--9

This study aimed to synthesize structured lipids containing high mono- and diacylglycerol by glycerolysis-interesterification of palm olein and coconut oil blend in two high-shear continuous stirred tank reactors in series. The result showed that various flow rates of 11 mL/min to 23 mL/min did not significantly increase mono- and diacylglycerol concentration, while at a flow rate of 26 mL/min only a low concentration of mono- and diacylglycerol was formed. However, a flow rate 20 mL/min and an agitating speed of 2000 rpm produced mono- and diacylglycerol concentration of 61.7% with the highest productivity of 2.1%/min and a triacylglycerol conversion of 64.6%. The slip melting point, melting point, hardness, emulsion capacity, and stability were 23.77 °C, 30 °C, 14.6 N, 65.15%, and 59.15%, respectively. The product’s solid fat content at 25 °C was lower than cocoa butter. The product contained β’ and β crystals, thus it can be applied as a cocoa butter substitute.

Właściwości układów emulsyjnych stabilizowanych mieszaninami monoacylogliceroli i oksyetylenowanych estrów metylowych kwasów tłuszczowych

Szeląg H., Ciesiulska L., Macierzanka A.

Przemysł Chemiczny

2005

T. 84, nr 12

939-942

Przedstawiono możliwości otrzymywania niejonowych emulgatorów o różnorodnych właściwościach hydrofilowych, z wykorzystaniem monoacylogliceroli i oksyetylenowanych estrów metylowych kwasów tłuszczowych. Określono efektywność preparowanych emulgatorów sporządzając modelowe emulsje i badając ich właściwości oraz stabilność. Otrzymane emulgatory można stosować do tworzenia emulsji O/W i W/O.

Methyl dodecanoate (X) and a mixt. of methyl C8–C18 alkanoates (Z), each ethoxylated with an av. 10 or 15 EO groups, were used to emulsify W/O or O/W models prepd. by adding a conductivity-grade (1 mS/m) water (W) and a mixed emulsifier (5% best) to a paraffin oil (O) at 80°C and 350 rpm with stirring continued until the dispersed system attained room temp. The 14 emulsifiers were (9:1), (5:5), (2:8) or (1:9 w/w) X–Z mixts. varying in HLB from 5.0 to 15.2. The >60% O emulsions stabilized with the (5:5) X–Z (15 and 10 EO groups; HLB 10.1 and 9.6) inverted at 41 and 40°C, resp., and a portion of oil sepd. The emulsifiers gave O/W and W/O emulsions, contg. up to 40% of the dispersed phase.