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Biotransformation of mogrosides from Siraitia grosvenorii by Ganoderma lucidum mycelium and the purification of mogroside III E by macroporous resins
Journal of Food and Drug Analysis ( IF 2.6 ) Pub Date : 2020-01-01 , DOI: 10.1016/j.jfda.2019.05.001
Chun-Hui Chiu, Reuben Wang, Shasha Zhuang, Pei-Yin Lin, Yi-Chen Lo, Ting-Jang Lu

Mogrosides are the major triterpenoidal saponins found in swingle, the fruit of Siraitia grosvenorii, which have recently been widely used throughout the world as natural food sweeteners. Among this class of compounds, mogroside III E (MG III E) exhibits the most intense sweetness, and it was also found to effectively regulate blood glucose levels. However, the relative abundance of naturally occurring MG III E is low compared to other mogrosides. Therefore, the purpose of this study was to enrich MG III E through biotransformation of fruit extracts and to develop a reliable method for its purification. We used HPLC coupled with mass spectrometry and nuclear magnetic resonance spectroscopy for metabolite analysis and identified MG III E as a major metabolite of Ganoderma lucidum mycelium. This organism converts the most abundant mogroside, mogroside V, to MG III E via a deglycosylation reaction; high levels of β-glucosidase activities were also detected. In addition, we established an efficient purification method for MG III E using HP-20 macroporous resin. Optimization of the method was accomplished by kinetic model fitting, dynamic adsorption studies, and desorption experiments. The purity of MG III E was increased from 11.71% to 54.19%, with a 70%-76% recovery rate, and the scaled-up purification process allowed us to harvest 17.38 g of MG III E with 55.14% purity and a 74.71% of recovery rate. Therefore, our low cost, time-saving, easy to scale-up procedure for isolating MG III E could be applicable in industrial processes.

中文翻译:

灵芝菌丝体生物转化罗汉果罗汉果苷及大孔树脂纯化罗汉果苷III E

罗汉果苷是在罗汉果果实中发现的主要三萜皂苷,最近在世界各地被广泛用作天然食品甜味剂。在此类化合物中,罗汉果苷 III E (MG III E) 表现出最强烈的甜味,并且还发现它可以有效调节血糖水平。然而,与其他罗汉果苷相比,天然存在的 MG III E 的相对丰度较低。因此,本研究的目的是通过水果提取物的生物转化来丰富 MG III E,并开发一种可靠的纯化方法。我们使用 HPLC 结合质谱和核磁共振光谱进行代谢物分析,并确定 MG III E 是灵芝菌丝体的主要代谢物。这种有机体转化了最丰富的罗汉果苷,罗汉果苷 V,通过去糖基化反应转化为 MG III E;还检测到高水平的β-葡萄糖苷酶活性。此外,我们建立了一种使用 HP-20 大孔树脂对 MG III E 进行有效纯化的方法。该方法的优化是通过动力学模型拟合、动态吸附研究和解吸实验完成的。MG III E 的纯度从 11.71% 提高到 54.19%,回收率为 70%-76%,放大的纯化过程使我们能够收获 17.38 g MG III E,纯度为 55.14%,回收率为 74.71%。的恢复率。因此,我们用于分离 MG III E 的低成本、省时、易于放大的程序可适用于工业过程。我们建立了一种使用 HP-20 大孔树脂对 MG III E 进行有效纯化的方法。该方法的优化是通过动力学模型拟合、动态吸附研究和解吸实验完成的。MG III E 的纯度从 11.71% 提高到 54.19%,回收率为 70%-76%,放大的纯化过程使我们能够收获 17.38 g MG III E,纯度为 55.14%,回收率为 74.71%。的恢复率。因此,我们用于分离 MG III E 的低成本、省时、易于放大的程序可适用于工业过程。我们建立了一种使用 HP-20 大孔树脂对 MG III E 进行有效纯化的方法。该方法的优化是通过动力学模型拟合、动态吸附研究和解吸实验完成的。MG III E 的纯度从 11.71% 提高到 54.19%,回收率为 70%-76%,放大的纯化过程使我们能够收获 17.38 g MG III E,纯度为 55.14%,回收率为 74.71%。的恢复率。因此,我们用于分离 MG III E 的低成本、省时、易于放大的程序可适用于工业过程。放大的纯化过程使我们能够收获 17.38 g MG III E,纯度为 55.14%,回收率为 74.71%。因此,我们用于分离 MG III E 的低成本、省时、易于放大的程序可适用于工业过程。放大的纯化过程使我们能够收获 17.38 g MG III E,纯度为 55.14%,回收率为 74.71%。因此,我们用于分离 MG III E 的低成本、省时、易于放大的程序可适用于工业过程。
更新日期:2020-01-01
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