Pectinase
Pectin is a molecule similar to starch except that the repeating unit (residue) of pectin is galacturonic acid instead of glucose as in starch. Galacturonic acid is still very similar to glucose, except one of the carbons has a -COOH group attached instead of a CH2-OH. The pectin chain is held together by a bond between carbon 1 of one galacturonic acid and carbon 4 of the next one and so on. Pectinase splits the bonds between these galacturonic acids to shorten the pectin chain from large fragments in to many more small fragments. The actual catalytic mechanism introduces water so pectinase is known as a hydrolytic enzyme. It splits a water molecule and adds -H to one carbon in the bond and an -OH to the other one. Another type of pectinase also breaks this bond but by a different ca
Some topics in this essay:
, galacturonic acid, increase temperature, amino acids, temperature enzymes, optimum temperature, rate enzyme, folded structure, structure held, pectin chain, catalytic mechanism,
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Approximate Word count = 530
Approximate Pages = 2 (250 words per page double spaced)
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