Effect of number of steps on the quality of Eurycoma longifolia extract and cost efficiency of the extraction processNoor Hafiza HARUN, Azila ABDUL-AZIZ & Ramlan AZIZDownload pdf.Keywords: Eurycoma longifolia; number of extraction step, cost efficiency, yield. A b s t r a c t
The importance of number of extraction step on cost efficiency
of extraction of Eurycoma longifolia is undeniable, in
addition to main processing factors like temperature, duration,
rotation speed, particle size of raw material, and solvent to
raw material ratio.
In lab-scale, the highest cost efficiency of the process was
obtained in two-sequential extraction, i.e. 1.45 gram per RM.
This double extraction also seemed appropriate since
considerable total yield and amounts of active compounds could
be obtained to some level. Multi-step extractions of beyond
three steps are not advisable as the severe quality of the
extracts. When
increasing the number of extraction steps, the amounts of marker
compounds such as eurycomanone and polysaccharides decreased,
and simultaneously increased the unwanted constituents.
Improving the extraction efficiency of Eurycoma
longifolia particularly in industrial point of view has to
be economical at appropriate processing condition.
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