高剪切反应器合成单酰基甘油和二酰基甘油

Q3 Multidisciplinary
Nanda Legiasa Rabiul Tsani Rohana, R. Millati, R. Yanti, Aulia Safrina Ardani, Chusnul Hidayat
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引用次数: 0

摘要

本研究旨在通过高剪切反应器进行甘油水解-酯化反应,从棕榈油和椰子油混合物中获得含有高单酰基和二酰基甘油(MDAG)混合物的产品的最佳特性。在较低的温度(120℃)、3%的NaOH作为催化剂、12%的分子筛、2000转/分的搅拌速度下进行最佳反应。评价因素是棕榈油:椰子油的比例(70:30、60:40、50:50、40:60和30:70)和油:甘油的比例(1:3、1:4、1:5、1:6和1:7)。结果表明:棕榈油:椰子油比对乳剂的熔点(MP)、滑移熔点(SMP)、硬度、乳化容量和稳定性有显著影响,但对MDAG浓度无显著影响(P > 0.05)。此外,采用真空泵和分子筛对高剪切反应器进行改造,使体系含水量降低,从而显著降低了游离脂肪酸(FFA) (P < 0.05)。当棕榈油与椰子油的比例为50:50,油与甘油的比例为1:5时,MDAG浓度最高(58.28%),FFA、含水量、硬度、SMP、MP、乳液容量和乳液稳定性分别为6.75%、7.00%、3.93 N、33.23°C、35.57°C、62.66%和61.59%。因此,在高剪切反应器中对棕榈油和椰子油混合物进行甘油水解-酯化反应是一种有希望的替代方法,可以在相对较低的温度下生产出具有较好特性的高MDAG产品。该产品具有乳化能力、稳定性和半固体硬度,可用于巧克力涂抹。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Synthesis of Mono- and Diacylglycerol Using High Shear Reactor
This study aimed to obtain the best characteristics of a product containing a mixture of high mono- and diacylglycerol (MDAG) from a palm olein and coconut oil blend through glycerolysis- interesterification using a high shear reactor. The most optimum reaction was performed at a relatively low temperature (120 °C), 3% NaOH as a catalyst, a 12% molecular sieve, and an agitating speed of 2000 rpm. The evaluated factors were palm olein: coconut oil ratios (70:30, 60:40, 50:50, 40:60, and 30:70) and oil: glycerol ratios (1:3, 1:4, 1:5, 1:6, and 1:7). The results showed that palm olein: coconut oil ratio had a significant effect on melting point (MP), slip melting point (SMP), hardness, and emulsion capacity and stability, but it did not have a significant effect on MDAG concentration (P > 0.05). Besides, modifying a high-shear reactor with a vacuum pump and molecular sieve caused a decrease in water content in the system, subsequently reducing free fatty acid (FFA) significantly (P < 0.05). The reaction condition at palm olein: coconut oil ratio of 50:50 and oil: glycerol ratio of 1:5 produced the highest MDAG concentration (58.28%) with FFA, water content, hardness, SMP, MP, emulsion capacity, and emulsion stability about 6.75%, 7.00%, 3.93 N, 33.23 °C, 35.57 °C, 62.66%, and 61.59%, respectively. Thus, glycerolysis-interesterification of palm olein and coconut oil blend in a high shear reactor is a promising alternative to produce a product containing high MDAG with better characteristics at a relatively low temperature. The product can be used for chocolate spread based on its emulsion capacity, stability, and semi-solid hardness.
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来源期刊
Philippine Journal of Science
Philippine Journal of Science Multidisciplinary-Multidisciplinary
CiteScore
1.20
自引率
0.00%
发文量
55
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