Standardization Simplicia & Infusion, Phytochemical Screening, and Microscopic Observation of Lo Han Guo (Siraitia grosvenorii) Fruit

Siraitia grosvenorii, often referred to as Monk fruit or Lo Han Guo fruit, is a medicinal plant originating from China and widely recognized for its natural sweetness. Traditionally, this fruit has been used to alleviate coughs and soothe sore throats. Its primary biological effects are linked to active compounds from the triterpenoid glycosides group, known as mogrosides. Antimicrobial activity has been observed in the aqueous extract of Lo Han Guo fruit through dilution method testing, which is attributed to the compound siraitiflavandiol. This analysis of study endeavors to identify the compound groups in the Lo Han Guo fruit simplicia and infusion, also observe the Lo Han Guo fruit parts microscopically. The study results indicate that the Lo Han Guo fruit simplicia and infusion contains flavonoids, essential oils, saponins, glycosides, and terpenes. Based on the microscopic observation, the observed parts include parenchyma, seed coat parenchyma containing oil and aleurone, covering hairs, calcium oxalate crystal prisms, stone cells, xylem vessels, and vascular bundles.