Development of a series-parallel reaction system for rapid aqueous extraction of seed oil from yellow horn at mild condition
2017
Yang, Ne | Jin, Yamei | Li, Dandan | Zhou, Yuyi | Jin, Zhengyu | Xu, Xueming
A novel and environmentally-friendly technique for the aqueous extraction of natural substances from sustainable resources is the use of induced electric fields. Based on this concept, a fluidic system was developed for the rapid extraction of seed oil from yellow horn under mild conditions (55°C). The flowing sample solution at pH 4.5 acted as the secondary coil was exposed to the field at 20kHz to accelerate the extraction. Results revealed that this method was beneficial to the release of oil without affecting oil quality. Positive factors affecting oil yield include the number of reactors connected in both series and parallel, as well as the excitation voltage. Increasing the number of reactors improved in the rate of extraction. Various series and parallel connection modes of the system significantly affected yield even when the input power was held constant. Maximum yield was observed only for the series mode. It has been concluded that the induced electric field-assisted extraction (IEFAE) developed in this study is an ideal technique for the extraction of seed oil because of its high efficiency, avoidance of metal electrode usage.
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