Botanical Overview
Quinine (Cinchona pubescens) is a species in the Rubiaceae family. The coffee family (Rubiaceae) includes trees, shrubs, and herbs with opposite leaves and interpetiolar stipules. The flowers are typically tubular with four or five petals. The family includes coffee (Coffea), quinine-producing Cinchona, and numerous other medicinal species with alkaloid constituents. Although comprehensive ethnobotanical records are limited, phytochemical studies have identified 30 compounds in this species, suggesting potential medicinal value.
General Description
It is known as a medicinal plant for its bark’s high quinine content- and has similar uses to C. officinalis in the production of quinine, most famously used for treatment of malaria.
Family Context
The Rubiaceae family is large and primarily tropical. Notable medicinal members include:
- Indian Mulberry — 56 documented uses
- Madder — 41 documented uses
- Gardenia — 34 documented uses
- Lojabark — 32 documented uses
Geographic Distribution
Quinine has been recorded in 10 countries and territories worldwide, including Bolivia, Colombia, Costa Rica, Ecuador, Indonesia, and others.
Active Compounds
Phytochemical research has identified 30 compounds in this species, including a diverse array of phytochemical classes (see the Complete Chemical Inventory below for the full list).
The identified compounds include the following categories:
- Phenolic: antioxidant compounds that neutralize free radicals
- Alkaloid: nitrogenous compounds with diverse pharmacological activities
- Tannin: astringent compounds that tighten tissues and resist infection
Research Status
Although this species has documented phytochemical constituents, its ethnobotanical and clinical documentation remains incomplete. Further ethnobotanical and pharmacological research may reveal additional therapeutic applications for this species.