|Suzhou NanomIcro Technology|
Others Composites and PolymersPorous Resin
Stevia is a perennial herb and all of the plant parts have an intensively sweet taste. Extracts of Stevia is low in calories and used as an excellent healthy substitute for sugar and artificial sweeteners. The crude extracts are typically purified by filtration, resin adsorption, de-coloration followed by multiple recrystallization. The resulting extracts are usually a mixture of Rebaudioside A (RA), Rebaudioside C (RC), Stevioside (STV), Dulcoside A (DA), and Steviobioside (STVB). It has been a challenge for the food industry to isolate single components from the extracts with purity higher than 95%.