Pressurized hot water extraction of 10-deacetylbaccatin III from yew for industrial application

Pressurized hot water extraction of 10-deacetylbaccatin III from yew for industrial application
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加压热水提取红豆杉中 10-脱乙酰浆果赤霉素 III 的工业应用

DOI:
10.1016/j.reffit.2017.03.007
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发表时间:
--
期刊:
Resource-Efficient Technologies
影响因子:
--
通讯作者:
Strube J.
Strube J.
中科院分区:
--
文献类型:
--
作者:
Sixt M;Strube J.

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在本研究中,考虑到高价值化合物的潜在热降解,研究了以加压热水萃取(PHWE)为重点的工艺开发的系统和基于模型的方法。对于从红豆杉中提取10-去乙酰基baccatin III (10-DAB)作为代表性测试体系,120°C的水提供了提取率和热降解之间的最佳折衷。仅在20分钟内,10-DAB总量的产率几乎达到100%。每次模型参数测定实验均以1.9 g植物材料,流速为1 mL/min,施加压力为11 bar进行。所有实验值均采用物理-化学(严格)提取模型进行评估,实验值与模拟结果具有较高的一致性。为了证明提取模型和模型参数确定的可用性,计算了一个按比例放大的预测。对放大实验进行了精确预测,从而验证了模型的有效性。在体积为104 mL、质量为22 g的红豆杉针柱上进行的实验和模拟结果与用于模型参数确定的毫米尺度一致。
In this study a systematic and model-based approach for a process development focusing on pressurized hot water extraction (PHWE) is investigated, considering potential thermal degradation of high-value compounds. For extraction of 10-deacetylbaccatin III (10-DAB) from yew as a representative test system, water at 120 °C provided the best compromise between extraction yield and thermal degradation. A yield of almost 100% with regard to the overall amount of 10-DAB was reached in only 20 min. Each experiment for model parameter determination was carried out with 1.9 g of plant material at a flowrate of 1 mL/min and an applied pressure of 11 bar. All experimental values are assessed by a physico-chemical (rigorous) extraction model with experimental values and simulation results showing high conformity. In order to demonstrate the usability of the extraction model and model parameter determination a scale-up prediction was calculated. The scale-up experiments were predicted precisely and thus the model validated. The experiments and the simulation results for a column with a volume of 104 mL and a mass of 22 g yew needles were consistent with the milli-scale used for model parameter determination.
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