Merchan Ortega, Kleber Fabricio; Valle Quinde, Viviana Andrea
(Machala : Universidad Técnica de Machala, 2023)
Propolis is a resinous product made by bees, mainly Apis mellifera, from exudates or parts of different plants that are close to the hive. In general, propolis is chemically composed of: organic acids, flavonoids, phenols, ...