GRADE & PURITYBioReagent?BioReagent grade — tested suitable for life-science and molecular-biology use. Use for cell culture, assays, and biochemical work needing biological compatibility.
BioReagent BioReagent for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping
Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.
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Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Overview
Pectin methylesterase (PE), also known as pectinesterase or pectin oxidase, is a member of the pectinase enzyme family. It catalyzes the hydrolysis of methoxy ester bonds in the pectin long chain, generating low-molecular-weight pectic acid and methanol, thereby increasing the solubility of pectin in water. PE is widely distributed in higher plants, as well as in bacteria and fungi capable of degrading cell walls. In plants, it plays a role in the endogenous regulation of cell wall and intercellular pectin content.
The hydrolysis of pectin molecules catalyzed by PE releases H⁺, resulting in a decrease in the pH of the reaction system. By titrating with alkali to maintain the system pH constant at 7.8 (using phenolphthalein as the indicator to retain a pink color), the amount of NaOH consumed reflects the activity of pectin methylesterase.
Storage and Shipping
Storage
Store at 2-8°C
Shipped In
Wet ice
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
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