Propolis is an effective substance used by bees to maintain the health of the whole colony. A colony of 50,000 to 60,000 bees can only produce 70- 1 10g of propolis a year, which is called "Zijin".
The production period of propolis is mostly in summer and autumn. In China, the tree species are mostly betulaceae, Salicaceae, Pinaceae, Cupressaceae and Lacqueraceae, as well as peaches, plums, apricots, chestnuts, rubber, eucalyptus and sunflowers.
Extended data:
The harm of eating too much propolis
1, lead poisoning
Propolis is mainly taken from the iron net cover of beehives, but its raw material is gum absorbed by bees from various plants. This kind of glue is greatly influenced by the environment, and air, soil and water may be polluted by heavy metal lead. So excessive consumption may lead to lead poisoning.
2, reduce the digestive function
Propolis contains a large number of antibacterial ingredients, which can kill gastrointestinal bacteria after eating. So many people clean up the gastrointestinal flora by eating propolis, but this kind of propolis can't tell the good from the bad, and it also has a killing effect on probiotics in the intestine. If you eat too much, it will reduce your digestive function.
3. endocrine abnormalities
Propolis contains many flavonoids and flavonols, which will promote the synthesis of estrogen in the body after eating. Eating too much at a time will directly lead to endocrine disorders.
Baidu encyclopedia-propolis
People's Network-How much propolis is appropriate for lead poisoning?