Researchers have successfully turned waste olive leaves into treasures

With the support of "science and technology supporting Gansu" project of Chinese Academy of Sciences, researchers of Lanzhou Institute of Chemical Physics of Chinese Academy of sciences have successfully extracted oleuropein and total flavonoids with strong antioxidant effect from abandoned olive leaves, with the extraction rate reaching more than 90%, which is in a leading position in the same industry at home and abroad At present, this technology has been successfully put into production in olive enterprises Di duolong, the project leader and researcher of Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, introduced that the world famous evergreen woody oil and fruit tree olive, characterized by "high yield, high quality and high efficiency", are widely used in the production of edible oil, health medicine and cosmetics due to their high medicinal value, rich nutrients and multiple comprehensive utilization ways But in the production process, the waste olive leaves have not been used for a long time At present, Longnan, Gansu Province has an olive planting area of more than 300000 mu, which is the largest olive base in China "Olive Growers or enterprises used to use traditional incineration methods to dispose of abandoned olive leaves, which would not only pollute the environment, but also have no economic benefits." In fact, oleuropein and flavonoids in olive leaves have high biological activity and utilization value Oleuropein and total flavonoids have strong ability of scavenging free radicals which affect human health, and have the functions of antioxidant, strengthening immune system and improving blood circulation It is understood that the extraction technology of effective components from olive leaves is relatively advanced abroad The effective component extracts of olive leaves from Brazil, Greece and other countries have been widely used in food, medicine, cosmetics and other industries The extraction rate of active components from olive leaves was about 80%, and the content of active components was about 20% In order to turn waste into treasure, didolong and his research team began to use macroporous adsorption resin technology to separate and purify oleuroside and total flavonoids three years ago At present, the extraction rate and product purity of these two kinds of substances have reached more than 90% This technology has been successfully put into production in olive enterprises, achieving a win-win situation of economic and ecological benefits.