Pectin methylesterase
Pectin methylesterase (abbreviation: PME, EC 3.1.1.11 , also: pectin demethoxylase, pectin methoxylase ) is a common enzyme in the cell wall in all higher plants as well as some bacteria and fungi which splits the methyl esters of the pectins and thereby forms polygalacturonic acid and releases methanol . PME has been isolated in many isoforms .
function
Research has shown that PME plays a role in many physiological processes, e.g. B. in the ripening of fruits, the shedding of leaves ( abscission ), the elongation growth of plant cells and in the formation of roots.
use
PME is z. B. used in food technology to ensure uniform product quality.
Web links
- Enzyme - 3.1.1.11 in the Kyoto Encyclopedia of Genes and Genomes
- Pectin esterase - transGEN database Entry of pectin esterase in the transGEN database
- Pectin Methylesterase - Lexicon of Biology Entry Spectrum Lexicon of Biology
Individual evidence
- ↑ Process for the production of tomato-based food products with pectin methylesterase and added hydrocolloid. Patent specification ( Unilever , 2004).