Kinetic Study and Optimization of the Most Influential Factor on Batch-Extraction of Gingerol from Fresh Ginger (Zingiber officinale) Rhizomes by Using n-Hexane as a Solvent

Reaktor Pub Date : 2018-09-28 DOI:10.14710/REAKTOR.18.03.136-142

Margaretha Praba Aulia, F. Pradhita, A. C. Kumoro, M. Christwardana, H. Hargono

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引用次数: 3

Abstract

A solvent extraction of 6- gingerol from fresh ginger rhizome chips using n-hexane has been successfully carried out. This study aimed to investigate the effects of temperature, feed size, and feed mass on the yield of gingerol, to observe the kinetics of gingerol extraction process using n-hexane as a solvent, to find the most influential parameters in the gingerol extraction process and to determine the optimum conditions of the gingerol extraction process. The experiment was carried out for 60 minutes using two feed mass ( 50 and 75 g), two temperature (60 and 70 oC) and two chips sizes (100 and 25 mm3) using 350 mL n-hexane. The second-order kinetics model was used to study the extraction kinetic parameters. The quick method was used to evaluate the most influential extraction parameters with respect to the yield of gingerol. Feed mass was found to be the most influential parameter in the gingerol extraction process. The optimum extraction conditions were found to be at 60 °C, ginger rhizome chips with 25 mm size3, feed mass was 109.7g and 350 mL n-hexane, which resulted in crude extract with gingerol content of 517.11 ppm.

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以正己烷为溶剂分批提取鲜姜根茎中姜辣素的动力学研究及影响因素优化

采用正己烷萃取法，成功地从鲜姜中提取了6-姜辣素。本研究旨在考察温度、进料粒度、进料质量对姜辣素得率的影响，观察以正己烷为溶剂提取姜辣素过程的动力学，找出对姜辣素提取过程影响最大的参数，确定姜辣素提取工艺的最佳工艺条件。采用两种进料质量(50和75 g)，两种温度(60和70℃)，两种芯片尺寸(100和25 mm3)， 350 mL正己烷，进行60分钟的实验。采用二级动力学模型研究萃取动力学参数。采用快速提取法对影响姜辣素得率的主要提取参数进行了评价。饲料质量是影响姜辣素提取过程的主要参数。结果表明，最佳提取条件为:温度60℃，姜片粒径25 mm，饲料质量109.7g，正己烷用量350 mL，可得到姜辣素含量为517.11 ppm的粗提物。

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Reaktor

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2 weeks