Xi'an Sentian Biotechnology Co., Ltd. is one of the leading manufacturers and suppliers of pectin methylesterase in China. We are committed to providing high quality customized service and OEM&ODM private label service for global clients. Please feel free to buy bulk pectin methylesterase in stock here from our factory. Also, free sample is available.

What is Pectin Methylesterase?
Pectin methylesterase is an enzyme that removes methyl groups from pectin molecules, converting high-methoxyl pectin into low-methoxyl pectin. This reaction plays a key role in modifying pectin behavior during food processing.
Key Functional Benefits
Controlled pectin structure modification
Improved process consistency in fruit systems
Enhanced downstream enzyme synergy
Better filtration and process handling
Suitable for multi-enzyme systems
For integrated sourcing, it can be combined with ingredients such as Food Additive Allulose, Allulose Brown Sugar and feed solutions like Choline Chloride Powder.
Everything You Need to Know
What does pectin methylesterase do?
Is pectin good for diabetics?
In human studies, pectin has been found to have a positive effect on blood glucose control, particularly in individuals with type 2 diabetes. Pectin also shows synergistic effects by enhancing the potency and efficacy of antidiabetic drugs when taken together.
What are the disadvantages of pectin?
Most commercial products and supplements are made from apples or citrus peels. If you have any concerns about these products, consult your healthcare provider. Pectin supplements may cause gas or bloating in some people. If you are allergic to apples or citrus, avoid these supplements.
What is the most effective digestive enzyme?
The Best Digestive Enzymes to Look For
Amylase. Function: Breaks down complex carbohydrates (like potatoes, bread, and rice) into simple sugars. ...
Protease. Function: Helps digest proteins found in meat, eggs, dairy, and legumes. ...
Lipase. ...
Lactase. ...
Cellulase. ...
Pancreatin. ...
Bromelain and Papain.
Main Details:
Action & Mechanism: PMEs act on pectin by releasing methanol and protons, creating negatively charged carboxyl groups. These groups form ionic bonds with calcium, producing "egg-box" structures that strengthen or "stiffen" the plant cell wall.
Biological Function: These enzymes are critical in various plant developmental processes, including pollen tube growth, fruit ripening, and leaf development.
Regulation: PME activity is regulated by PME inhibitors (PMEIs), which are proteinaceous inhibitors (e.g., from kiwi fruit) that form a 1:1 complex with the enzyme.
Industrial Applications: PMEs are used in food industries to modulate the texture of fruit and vegetable products and have applications in biomass processing.
Classification: PMEs are classified into Type I (containing PRO domains) and Type II (similar to microbial enzymes).


Application
Food Processing
Fruit juice processing
Vegetable processing
Beverage production
Pectin structure control
Advanced Formulation
Used in combination with Nicotinamide Mononucleotide, NMN Powder and functional ingredients for innovative product development.
Industrial Use
Enzyme system optimization
Extraction improvement
Processing efficiency enhancement
ANALYTICAL RESULTS
| Test Item | Method / Reference | Specification | Result | Conclusion |
|---|---|---|---|---|
| Appearance | Visual | Off-white to light brown powder | Light beige powder | Conforms |
| Odor | Organoleptic | Characteristic enzyme odor, no off-odor | Characteristic | Conforms |
| Enzyme Identification | Declared as Pectin methylesterase / Pectinesterase, EC 3.1.1.11 | Positive | Positive | Conforms |
| Pectin Methylesterase Activity | Spectrophotometric methanol-release assay, 412 nm; principle aligned with OIV PME activity method | ≥ 5,000 U/g** | 6,480 U/g | Conforms |
| Secondary Activity Check | Constant-pH titrimetric confirmation of de-esterification activity | Positive correlation with primary assay | Positive | Conforms |
| pH (1% solution, 25°C) | Potentiometric | 3.5 – 6.5 | 4.72 | Conforms |
| Loss on Drying | 105°C / gravimetric | ≤ 8.0% | 4.3% | Conforms |
| Ash | Gravimetric | ≤ 10.0% | 3.1% | Conforms |
| Lead (Pb) | ICP-MS / heavy metals | ≤ 5 mg/kg | 0.42 mg/kg | Conforms |
| Total Aerobic Count | Plate count | ≤ 10,000 CFU/g | 620 CFU/g | Conforms |
| Yeast & Mold | Plate count | ≤ 100 CFU/g | < 10 CFU/g | Conforms |
| Coliforms | Microbiological limit test | Negative / g | Negative | Conforms |
| Escherichia coli | Microbiological limit test | Negative / 25 g | Negative | Conforms |
| Salmonella | Microbiological limit test | Negative / 25 g | Negative | Conforms |
Production Process










