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Dairyzym PT 500 LAC

1 of 4 products in this brand
Dairyzym PT 500 LAC creates new covalent links within proteins and also between different proteins. The enzyme connects residues of the amino acid L-glutamine to the amino acid L-lysine. The enzyme’s formulation acts as general binder and texture improver for dairy products as processing aid.

Functions: Binder, Texturizing Agent

Labeling Claims: BSE-free, Nanomaterials-free, Non-GMO, Non-Irritant, TSE-free, Vegetarian

Certifications & Compliance: Generally Recognized As Safe (GRAS)

Physical Form: Powder, Solid

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Identification & Functionality

Chemical Family
Food Ingredients Functions
Ingredients
Maltodextrin, Lactose, Transglutaminase
Technologies
Chemical Structure

Dairyzym PT 500 LAC - Chemical Structure

Origin

Non-pathogenic Streptoverticillium mobaraense (GRAS status)

Features & Benefits

Properties
  • Increases yield
  • Covalently links proteins
  • Improves temperature resistance
  • Improves Texture

Applications & Uses

Applications
  • Cheese
  • Fresh Cheese
  • Curd Cheese
  • Yogurt
Dosage

The typical dosage is 1-10 Unit per 1 g of milk protein to improve the texture of fresh cheese and yogurt. The addition of caseinate can improve the effect of the transglutaminase.

The optimal dosage depends greatly on process conditions and the quality of the raw material and may therefore deviate from the suggested dosage. Finding the optimal dosage for each individual process should be evaluated at actual production sites.

Properties

Physical Form
Appearance
Granulated powder
Chemical Properties
ValueUnitsTest Method / Conditions
Arsenic Contentmax. 3mg/kgAAS
Cadmium Contentmax. 0.5mg/kgAAS
Lead Contentmax. 10mg/kgAAS
Loss on Dryingmax. 14g/100gdrying oven; 3h 105°C
Mercury Contentmax. 0.5mg/kgAAS
Typical Properties
ValueUnitsTest Method / Conditions
Transglutaminase450 - 500u/gHydroxamate Assay
Microbiological Values
ValueUnitsTest Method / Conditions
Escherichia coliNegativecfu/25gM. Colif.-Agar 36°C/48h
SalmonellaNegativecfu/25gDIN EN ISO 6579
Total Plate Countmax. 50000cfu/gDIN EN ISO 4833

Regulatory & Compliance

Certifications & Compliance
Regulatory Information

Allergen Information: contains the allergen milk and lactose according to Regulation (EU) No 1169/2011, Annex II

Health Information: The products are suitable for human consumption if used accordingly to recommendations and officially allowed to be sold within Germany and the EU. The product is food grade and conforms with the current European food law.

GMO: This product is not a genetically modified organism (GMO), nor does it contain any GMO or any recombinant DNA.

All the non-enzymatic constituents of the product (e.g. carriers, stabilizing agents, free-flowing agents etc.) originate from non-genetically modified sources. Due to the ubiquitous presence of GMO organisms, absence of minor traces of GMO material cannot be guaranteed, but in any case, the content of unintentionally present GMO material will be below 0.9%, in accordance to Regulation (EC) No 1830/2003 and Regulation (EC) No1829/2003. The product is used as processing aid in food manufacturing processes, and therefore labeling is not required in the EU. National regulations must be observed.

 

Product suitability:

  Yes No
Vegetarian X  
Vegan   X

 

BSE/TSE Information: The mentioned product does not represent a BSE (Bovine Spongiform Encephalopathy) and/or TSE (Transmissible Spongiform Encephalopathy) risk. Irradiation: Neither the product nor its ingredients have been treated with ionizing radiation according to Directive 1999/2/EC and 1999/3/EC.

Nanoparticles: The product does not contain ingredients in the form of engineered nanomaterials as defined in Regulation (EU) 2015/2283.

Contamination/Residues: The product complies with: Regulation (EC) No 396/2005 and its amendments regarding maximum levels for pesticide residues in foodstuffs. Regulation (EC) No 1881/2006 and its amendments regarding especially maximum levels for heavy metals, mycotoxins, dioxins and PCB in foodstuffs.

Conformity of the Packaging: The packaging material complies with the provisions of Regulation (EC) No 1935/2004 and Regulation (EU) No 10/2011.

Technical Details & Test Data

Enzyme Activity and Stability Data
Transglutaminase 500 u/g (pH 7.0, 37 °C)
pH optimum 6.0 – 7.0
pH optimum 50°C

Fig. 1: Effect of the temperature on the activity of Dairyzym PT 500 LAC

(pH 6)

Dairyzym PT 500 LAC - Enzyme Activity And Stability Data

Fig. 2: Effect of the temperature on the Stability at pH 7 (10 min).

Dairyzym PT 500 LAC - Enzyme Activity And Stability Data - 1

Fig. 3: Effect of the pH on the activity of Dairyzym PT 500 LAC (37 °C)

Dairyzym PT 500 LAC - Enzyme Activity And Stability Data - 2

Application Information

Cheese (e.g. Mozzarella, Feta, low fat cheese)

Application of transglutaminase can increase the yield of young cheese up to 15% by increase whey retention and improved moisture per protein yield. In low fat cheese taste and texture is improved due to the higher moisture.

Dose 5 Units transglutaminase per 1 g of milk protein together with the rennet and follow the cheese process as usual.

 

Curd Cheese (“Quark”)

In curd cheese and fresh cheese applications, the transglutaminase addition can increase the yield by up to 25% (Fig. 5).

For applications before pasteurization:

Add 0.012-0.02% Dairyzym PT 500 LAC to milk and keep the milk for 2 hours at 25°C for the reaction of the transglutaminase.

For inactivation of the enzyme pasteurize the milk before the next step.

Add lactic acid bacteria and rennet and proceed as usual.

For applications after pasteurization:

Add 0.002-0.014% Dairyzym PT 500 LAC to milk. Furthermore, add lactic acid bacteria and rennet. Ferment for 6-18 hours at 27-38°C.

Process the following steps as usual.

 

Fig. 4: Improvement of Firmness and Yield of TG modified Quark

Dairyzym PT 500 LAC - Application Information

 

Yogurt (e.g. low fat)

In yogurt application, transglutaminase improves the textural properties of stirred and set type yogurts, especially low fat versions.

Stirred Yogurt

Pasteurize the milk prior application. Apply the transglutaminase together with the microorganism at 0.004-0.01% of final product weight (corresponds to approx. 1-3 Unit per 1 g of milk protein).

Dairyzym PT 500 LAC will increase the protein links during the fermentation, resulting in a higher viscosity (see Fig. 5).

 

Fig. 5: Viscosity of TG treated yogurt (38 °C, 12 h) aft er 24 h storage at 8°C.

Dairyzym PT 500 LAC - Application Information - 1

 

Set Yogurt

Pasteurize the milk prior application. Apply transglutaminase together with the microorganism at 0.002-0.01% of final product weight (corresponds to approx. 1-3 Unit per 1 g of milk protein).

Dairyzym PT 500 LAC will increase the protein links during the fermentation; resulting in a firmer protein gel with higher viscosity and reduced syneresis (see Fig. 6).

 

Fig. 6: Improvement of Gel Penetration Resistance, Viscosity and Syneresis of set joghurt

Dairyzym PT 500 LAC - Application Information - 2Dairyzym PT 500 LAC - Application Information - 3

 

With the above-mentioned properties Dairyzym PT 500 LAC is able to replace milk proteins usually used to produce set type joghurt to achieve financial savings. However, also combinations with proteins, at a reduced dosage, will improve the texture together with economic benefits (Fig 7).

 

Fig. 7: Comparison of Transglutaminase against protein addition and combination of protein and transglutaminase

Dairyzym PT 500 LAC - Application Information - 4

 

Safety & Health

Safety Precautions and Handling

Enzymes are proteins. Inhalation of dust or aerosols may induce sensitization and cause allergic reactions in sensitized individuals. Prolonged contact with some enzymes may irritate the skin, eyes and mucous membranes. The product may create easily inhaled aerosols if splashed or vigorously stirred. Spilled product may dry out and create dust. Spilled material should be flushed away with water. Avoid splashing. Left over material may dry out and create dust. Wear suitable protective clothing, gloves, eye and face protection, and wash contaminated clothes. A Material Safety Data Sheet is supplied with all products for further information on how to handle the product safely.

Packaging & Availability

Packaging Type
Packaging
Cardboard box with PE inliner, 10 kg net

Storage & Handling

Storage & Stability

When kept cool and dry in original, sealed packaging activity loss is less than 15 % in 12 months The product is susceptible to oxidation and should be used quickly after opening of the package.