Pectinase, Pectin Methylesterase, Polygalacturonase, Pectin Depolymerase, Pectolytic Enzyme, 9035-75-0

Pectinase, Pectin Methylesterase, Polygalacturonase, Pectin Depolymerase, Pectolytic Enzyme, 9035-75-0

PECTINASE (PECTINASE ENZYME)

Pectinase / Pectin Methylesterase / Polygalacturonase / Pectin Depolymerase / Pectolytic Enzyme

• CAS Number: 9035-75-0

• EC Number: 232-885-6

• Enzyme Class: EC 3.2.1.15 / EC 3.1.1.11 / EC 4.2.2.10

SECTION 1: PRODUCT DEFINITION AND CHEMICAL IDENTITY

Description:
Pectinase is an enzyme complex that breaks down pectin found in plant cell walls. Pectin is a polysaccharide composed of galacturonic acid units that provides structural integrity to plant cell walls. The pectinase complex consists of three main enzyme components: polygalacturonase, pectin methylesterase, and pectin lyase. These enzymes work synergistically to break down pectin and dissolve plant cell walls. In the food industry, it is widely used especially in fruit juice production to increase clarity and efficiency, in jam production to regulate consistency, and in winemaking for clarification.

SECTION 2: SYNONYMS AND OTHER NAMES

SECTION 3: ENZYMATIC STRUCTURE

3.1. Molecular Structure
Pectinase is a complex composed of multiple enzyme components. Each component has a different catalytic activity. The enzyme complex typically includes the following components:

1. Polygalacturonase (EC 3.2.1.15): Hydrolyzes galacturonic acid bonds in the pectin chain, breaking down the chain.

2. Pectin Methylesterase (EC 3.1.1.11): Hydrolyzes methyl ester groups in pectin, converting it to pectic acid.

3. Pectin Lyase (EC 4.2.2.10): Cleaves glycosidic bonds in the pectin chain through beta-elimination.

These three enzymes work synergistically to completely break down pectin. Molecular weight varies between 25,000-60,000 Da depending on each enzyme component.

3.2. Catalytic Mechanism
Pectinase breaks down pectin through the following mechanisms:

1. Polygalacturonase Activity: Hydrolyzes α-1,4-galactosidic bonds in the pectin chain, breaking down the pectin chain. This reduces the molecular weight of the pectin molecule.

2. Pectin Methylesterase Activity: Hydrolyzes methyl ester groups in pectin, removing methoxyl groups. This reduces pectin's ability to form gels with calcium ions.

3. Pectin Lyase Activity: Cleaves glycosidic bonds in the pectin chain through beta-elimination. This provides depolymerization of pectin.

3.3. Enzyme Complex Components

3.4. Basic Structural Properties

SECTION 4: PHYSICAL AND CHEMICAL PROPERTIES

SECTION 5: ENZYMATIC ACTIVITY AND REACTION

SECTION 6: REACTION MECHANISM

The pectinase complex catalyzes the hydrolysis of pectin through a mechanism involving the following steps:

6.1. Polygalacturonase Activity
Polygalacturonase hydrolyzes α-1,4-galactosidic bonds in the pectin chain, breaking down the pectin chain. This reduces the molecular weight of the pectin molecule and increases its solubility. Endo and exo forms exist.

6.2. Pectin Methylesterase Activity
Pectin methylesterase hydrolyzes methyl ester groups in pectin, removing methoxyl groups. This reduces pectin's ability to form gels with calcium ions and facilitates hydrolysis of the pectin chain by polygalacturonase.

6.3. Pectin Lyase Activity
Pectin lyase cleaves glycosidic bonds in the pectin chain through beta-elimination. This provides depolymerization of pectin and forms unsaturated oligogalacturonides as products.

6.4. Synergistic Effect
The combined action of the three enzyme components provides much higher total pectin degradation than the activity of each component alone. Pectin methylesterase facilitates polygalacturonase's access to the substrate by removing methyl ester groups.

SECTION 7: REACTION EQUATIONS

7.1. Pectin Hydrolysis (Polygalacturonase)
Pectin + H₂O → Oligogalacturonic Acid + Galacturonic Acid

7.2. Pectin Methylesterase Reaction
Pectin (Methyl Ester) + H₂O → Pectin (Carboxylate) + Methanol

7.3. Pectin Lyase Reaction
Pectin → Unsaturated Oligogalacturonides

7.4. Enzyme Inactivation (Thermal)
Pectinase (active) → Pectinase (inactive) (≥55°C, 10-15 minutes)

7.5. Product Inhibition
Pectinase + Galacturonic Acid → Pectinase-Galacturonic Acid Complex (inactive)

SECTION 8: PECTINASE TYPES

SECTION 9: APPLICATIONS AND INDUSTRIAL USES

9.1. Fruit Juice and Beverage Industry

Example Recipe – Apple Juice Clarification:

• Apple juice (pressed): 1000 L

• Pectinase: 5-50 g (depending on activity)

• Application temperature: 40-50°C

• Incubation time: 1-4 hours

Heat apple juice to 40-50°C. Dissolve pectinase in a small amount of water and add to the mixture. Incubate for the specified time. After clarification is complete, inactivate the enzyme by heat treatment and filter.

9.2. Jam and Marmalade Production

Example Recipe – Strawberry Jam Consistency Regulation:

• Strawberry puree: 100 kg

• Sugar: 60 kg

• Pectinase: 1-5 g (depending on activity)

• Application temperature: 45°C

• Incubation time: 30-60 minutes

Heat strawberry puree to 45°C. Dissolve pectinase in a small amount of water and add to the mixture. Incubate for the specified time. Inactivate the enzyme by heat treatment. Add sugar and cook the jam.

9.3. Wine and Fermentation Industry

9.4. Textile Industry

9.5. Paper and Pulp Industry

9.6. Coffee and Tea Processing

9.7. Agriculture and Waste Management

SECTION 10: ALTERNATIVES AND COMPARISON

10.1. Acid Hydrolysis (Chemical)

10.2. Cellulase (EC 3.2.1.4)

10.3. Amylase (EC 3.2.1.1)

10.4. Hemicellulase (EC 3.2.1.8)

SECTION 11: TOXICOLOGY AND SAFETY

11.1. Acute Toxicity

11.2. Regulatory Status

SECTION 12: GHS CLASSIFICATION (Powder Form)

Signal Word: Danger

Hazard Pictograms: GHS07 (Exclamation mark), GHS08 (Health Hazard)

Hazard Statements (H-Codes):

• H334: May cause allergy or asthma symptoms if inhaled

• H319: Causes serious eye irritation

• H335: May cause respiratory irritation

Safety Statements (Historical):

SECTION 13: PRECAUTIONARY STATEMENTS (P-CODES)

SECTION 14: FIRST AID MEASURES

SECTION 15: FIREFIGHTING MEASURES

SECTION 16: ACCIDENTAL RELEASE MEASURES

SECTION 17: STORAGE AND SHELF LIFE

SECTION 18: PACKAGING OPTIONS

SECTION 19: TRANSPORT INFORMATION

SECTION 20: ENVIRONMENTAL INFORMATION

SECTION 21: REGULATORY STATUS

SECTION 22: FREQUENTLY ASKED QUESTIONS (FAQ)

Q1: Is pectinase safe for food applications?
A1: Yes. Pectinase is classified as GRAS (Generally Recognized As Safe) by the FDA and approved as a food enzyme by EFSA. It is widely used in fruit juice production, jam making, and winemaking. However, the powder form may cause allergic reactions when inhaled, so appropriate personal protective equipment should be used.

Q2: What is the role of pectinase in fruit juice production?
A2: Pectinase hydrolyzes pectin found in fruit cell walls, breaking down cell walls. This increases fruit juice yield, reduces viscosity, and provides clarity. Additionally, it contributes to flavor development by increasing the release of flavor compounds through pectin breakdown. Pectinase is especially critical in processing high-pectin fruits such as apples, grapes, and pears.

Q3: What enzymes does the pectinase complex contain?
A3: The pectinase complex consists of three main enzyme components: (1) Polygalacturonase - hydrolyzes galacturonic acid bonds in the pectin chain, (2) Pectin Methylesterase - hydrolyzes methyl ester groups in pectin, (3) Pectin Lyase - cleaves glycosidic bonds in the pectin chain through beta-elimination. These three enzymes work synergistically to completely break down pectin.

Q4: Is pectinase suitable for vegan and halal products?
A4: Microbial (fungal or bacterial) sourced pectinases are suitable for vegan and halal certification. Since the product is produced from microorganisms such as Aspergillus or Bacillus, it contains no animal ingredients. Relevant certificates can be obtained from manufacturers.

Q5: What is the shelf life of pectinase?
A5: In unopened original packaging, stored in a cool (4-25°C) and dry place away from direct sunlight, a shelf life of 12-24 months is recommended. For long-term storage, storing at 4°C minimizes activity loss.

Q6: How should pectinase be stored?
A6: Store in a cool (preferably 4-25°C), dry, well-ventilated area in tightly closed containers. Moisture, high temperature (>40°C), and direct sunlight cause activity loss. Contact with heavy metals (copper, mercury) should be avoided.

Q7: What are the optimum working conditions for pectinase?
A7: The optimum pH of pectinase is between 4.0-5.0, and the optimum temperature varies between 40-50°C depending on the source. Fungal pectinases typically show best activity around 40-45°C. The enzyme is stable up to 50°C and rapidly inactivated above 55°C. Calcium ions increase activity.

Q8: How is pectinase used in jam production?
A8: In jam production, pectinase regulates jam consistency by optimizing the fruit's natural pectin content. Excessive pectin makes the jam too firm, while insufficient pectin makes it runny. Pectinase enables ideal consistency through partial hydrolysis of pectin. Pectinase is also used in clear jam production.

Q9: Why is pectinase used in wine production?
A9: In wine production, pectinase breaks down pectin in grape must, increasing wine yield, providing clarity, and improving color extraction. Especially in red wine production, pectinase increases the release of color compounds (anthocyanins) from grape skins. Additionally, it facilitates wine filtration and extends shelf life.

Q10: What are the effects of inhaling pectinase powder?
A10: Pectinase powder, when inhaled, can cause allergic reactions, asthma-like symptoms, and respiratory tract irritation. Occupational asthma can develop upon repeated exposure to enzyme dust in food processing industries. Therefore, a dust mask (P2/P3) must always be used when handling the powder form, and local exhaust ventilation should be provided.

SECTION 23: QUICK REFERENCE TABLE

SECTION 24: CRITICAL WARNINGS AND BEST PRACTICES

CRITICAL WARNINGS:

1. Dust Control and Respiratory Sensitization: Pectinase powder can cause occupational asthma upon repeated exposure. Use local exhaust ventilation to prevent dust dispersion and always wear a dust mask (P2/P3). Liquid formulations are safer than powder forms.

2. Synergistic Effect: The three components of the pectinase complex (polygalacturonase, pectin methylesterase, pectin lyase) work synergistically. In case of activity loss, check the presence of all components. Pectin methylesterase facilitates polygalacturonase's access to the substrate by removing methyl ester groups.

3. Activity Loss - Temperature: Pectinase is rapidly and irreversibly inactivated above 55°C. Strictly maintain application temperatures within the optimum range (40-50°C). Temperature control is critical in fruit juice and jam production.

4. Activity Loss - pH: Pectinase loses stability below pH 3.5 or above pH 6.0. Maintain application pH within the optimum range (4.0-5.0). Excessively acidic or basic conditions cause permanent enzyme inactivation.

5. Product Inhibition: Galacturonic acid inhibits pectinase activity (product inhibition). Reaction rate decreases at high sugar concentrations. Activity is higher in continuous systems or processes where product is removed.

6. Activity Loss - Heavy Metals: Mercury (Hg²⁺), copper (Cu²⁺), and other heavy metals inhibit pectinase. Avoid these metals in equipment that comes into contact with the enzyme. Stainless steel, HDPE, or glass materials are preferred.

7. Food Grade: Only FDA/EFSA-approved food-grade pectinase meeting specifications should be used in food applications. Industrial grade enzymes may contain impurities and are not suitable for human consumption.

8. Substrate Properties: Pectinase works more slowly on pectin with high methyl ester content. Pectin methylesterase increases polygalacturonase activity by removing methyl ester groups. Substrate properties determine which components of the enzyme complex will be more active.

BEST PRACTICE RECOMMENDATIONS:

• Storage: Store in a cool (4-25°C), dry, well-ventilated area in tightly closed containers. For long-term storage, +4°C (refrigeration) is recommended. Use within a short period after opening.

• Handling: Use protective gloves, dust mask (P2/P3), and protective goggles. To prevent dust dispersion, preferably use liquid formulations. Prepare working solutions fresh for each application.

• Substrate Preparation: Homogenize pectin-containing substrate (fruit pulp) as thoroughly as possible. Hydrolysis yield increases with increasing substrate surface area. Pre-heating facilitates pectin breakdown by the enzyme.

• Dosage: Calculate the correct dosage according to enzyme activity. Check enzyme activity for each batch. Start with low dosage and adjust based on results. Typical dosage ranges are 0.005-0.05% for fruit juice applications and 0.005-0.02% for jam applications.

• Enzyme Inactivation: Inactivate the enzyme by heat treatment (≥55°C, 10-15 minutes) at the end of the process to prevent over-hydrolysis. For fruit juice products, pasteurization will inactivate residual enzyme activity.

• Calcium Addition: Consider adding calcium ions (CaCl₂) to the application solution to improve enzyme stability and activity.

• Quality Control: Perform activity testing for each batch. Maintain production and handling hygiene to prevent microbiological contamination. Monitor clarity, viscosity, and gel formation during processing for consistent product quality.

• Waste Management: Dispose of enzyme and contaminated materials in accordance with local regulations. Do not discharge into sewers. If released into wastewater, inactivate the enzyme by heat treatment before disposal.

LEGAL DISCLAIMER:

This Technical Data Sheet (TDS) is for informational purposes only and is prepared based on available technical data. The user is responsible for determining the suitability of the product for their specific application and for complying with all local, national, and international regulations. For complete safety, storage, handling, transport, waste, and regulatory compliance information, refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier. Pectinase powder may cause sensitization when inhaled; appropriate protective equipment should be used. This document does not replace professional or medical advice.