it solidfy by the temperature
To solidify
pineapple, kiwi, mango, gingerroot, figs and gauva are the fruits which will prevent gelatin from hardening.
Pineapple kiwi papaya guava mango
Gelatinase is an enzyme that breaks down gelatin by cleaving its protein bonds, leading to liquefaction of the gelatin. The enzyme hydrolyzes the gelatin molecules into smaller components, causing the gelatin to lose its gel-like structure and become liquid.
To make gelatin from scratch, you can use animal bones or collagen-rich tissues. Simmer them in water for several hours, then strain the liquid and let it cool and solidify. Cut the gelatin into cubes or use it in recipes as needed.
Ice can be added in place of cold water to help the gelatin mixture congeal more rapidly. The lower temperature of the ice helps to solidify the gelatin faster.
To indicate whether gelatin had been hydrolyzed by those cultures or not. If gelatin hydrolysis occurs, liquefaction occurs even afterrefrigerationto indicate a positiveresult. If gelatin hydrolysis does not occur, the gelatin will solidifies afterrefrigeration
The term "CONGEAL" likely means to thicken or solidify, as gelatin does when it cools.
The proteins in the pineapple called bromelain will break down the strands of protein in gelatin that forms jello. Hence, the effect of a fresh piece of pineapple on gelatin is able to keep the gelatin liquidfied.
Gelatin is a reversible colloid, so yes, if you melt a set jello, it should set again when chilled. However, other ingredients, such as pineapple, may alter the gelatin so that it does not set.
Jell-O contains gelatin, a natural protein. When jell-O powder is mixed with hot water, the gelatin actually dissolves in the water. Once it cools, the gelatin begins to reform into the rubbery, jiggly mass we all know and love.