Industrial method for synchronously preparing stevia rebaudiana chlorogenic acid and stevioside

• Main Authors: GAO WEI, XU MEILI, LIAN YUNHE, WANG YANFANG, NIU ZHIPING
• Format: Patent
• Language: Chinese; English
• Published: 08.03.2019
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; DERIVATIVES THEREOF; METALLURGY; NUCLEIC ACIDS; NUCLEOSIDES; NUCLEOTIDES; ORGANIC CHEMISTRY; SUGARS

The invention relates to an industrial method for synchronously preparing stevia rebaudiana chlorogenic acid and stevioside. The industrial method includes carrying out alcohol extraction on stevia rebaudiana which is used as a raw material, and then adjusting feed liquid states to allow chlorogenic acid to be in free molecular states; carrying out extraction separation by water-insoluble moderate-polarity organic solvents; enriching the stevia rebaudiana chlorogenic acid on organic layers; enriching the stevioside on water layers. Compared with the traditional water extraction processes, theindustrial method has the advantages that chlorogenic acid components in the stevia rebaudiana can be prevented from being hydrolyzed, so that the contents and effects of effective components in stevia rebaudiana chlorogenic acid products can be guaranteed; effective separation can be carried out on the premise that the quality and the production efficiency of stevioside products are unaffected, the production efficiency