The occurrence of gel (gel) of jam Caused by acid, sugar and pectin (pectin), mixed in appropriate proportions of sugar and pectin doikrot is a component that is already present in fruits, but it may be improper proportions.
Gelation (gel) of marmalade caused by acid, sugar and pectin (pectin) mixed in the proper proportions by acid, sugar and pectin, a component that is already in the fruit. But may be considered inappropriate.
The gel (gel) of the jam caused by acid, sugar, and pectin (pectin) mixed in the right proportions by acid, sugar, and pectin, as components existing in fruits. But there may be some proportion unsuitable.