Arjun Tree. A Natural Preservative.
We really need to find natural preservatives like this so that our food can remain pure.
This is huge information.
Arjun tree, long used in ethnomedicine, can also be used as a natural preservative. 
https://www.naturalnews.com/2019-04-11-arjun-tree-can-be-used-as-natural-preservative.html