Online Exporter Nicotinamide Mononucleotide Study - Immobilized CALB – SyncoZymes

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Online Exporter Nicotinamide Mononucleotide Study - Immobilized CALB – SyncoZymes Detail:

CALB is immobilized by physical adsorption on the highly hydrophobic resin that is a macroporous, styrene/methacrylate polymer. Immobilized CALB is suitable for applications in organic solvents and solvent-free systems, and can be recycled and reused for much times in suitable conditions.
Product Code: SZ-CALB- IMMO100A, SZ-CALB- IMMO100B.

★Higher activity, higher chiral selectivity and higher stability.
★Better performance in the non-aqueous phases.
★Easily remove from reaction system, rapidly terminate reactions, and avoid protein residue in product.
★Can be recycled and reused to cut down the cost.

Activity	≥10000PLU/g
pH range for reaction	5-9
Temperature range for reaction	10-60℃
Appearance	CALB-IMMO100-A: Light yellow to brown solid CALB-IMMO100-B: White to light brown solid
Particle size	300-500μm
Loss on drying at 105℃	0.5%-3.0%
Resin for immobilization	Macroporous, styrene/methacrylate polymer
Reaction solvent	Water, organic solvent, etc., or without solvent. For the reaction in some organic solvents, 3% water can be added to improve the reaction effect
Particle size	CALB-IMMO100-A: 200-800 μm CALB-IMMO100-B: 400-1200 μm

Unit definition: 1 unit corresponds to the synthesis of 1μmol per minute propyl laurate from lauric acid and 1-propanol at 60℃. The above CALB-IMMP100-A and CALB-IMMO100-B correspond to immobilized carriers with different particle sizes.

1. Reactor type
The immobilized enzyme is applicable to both kettle batch reactor and fixed bed continuous flow reactor. It should be noted to avoid crushing due to external force during feeding or filling.
2. Reaction pH, temperature and solvent
The immobilized enzyme should be add last, after other materials added and dissolved, and pH adjusted.
If the consumption of substrate or the formation of product will lead to the change of pH during the reaction, sufficient buffer should be added to the reaction system, or the pH should be monitored and adjusted during the reaction.
Within the temperature tolerance range of CALB (below 60 ℃), the conversion rate increased with the increase of temperature. In practical use, the reaction temperature should be selected according to the stability of the substrate or product.
Generally, the ester hydrolysis reaction is suitable in aqueous phase system, while the ester synthesis reaction is suitable in organic phase system. The organic solvent can be ethanol, tetrahydrofuran, n-hexane, n-heptane and toluene, or a suitable mixed solvent. For the reaction in some organic solvents, 3% water can be added to improve the reaction effect.
3. Reuse and service life of CALB
Under the appropriate reaction condition, CALB can be recovered and reused, and the specific application times vary with different projects.
If the recovered CALB is not reused continuously and needs to be stored after recovery, it needs to be washed and dried and sealed at 2-8 ℃.
After several rounds of reuse, if the reaction efficiency is slightly reduced, CALB can be added appropriately and continued to use. If the reaction efficiency is reduced seriously, it needs to be replaced.

Example 1(Aminolysis)⁽¹⁾:

Immobilized CALB1

Example 2(Aminolysis)⁽²⁾:

Immobilized CALB2

Example 3(Ring opening polyester synthesis)⁽³⁾:

Immobilized CALB3

Example 4(Transesterification, regioselective of hydroxyl group) ⁽⁴⁾:

Immobilized CALB4

Example 5(Transesterification, kinetic resolution of racemic alcohols)⁽⁵⁾:

Immobilized CALB5

Example 6(Esterification, kinetic resolution of carboxylic acid)⁽⁶⁾:

Immobilized CALB6

Example 7(Esterolysis, kinetic resolution)⁽⁷⁾:

Immobilized CALB7

Example 8(Hydrolysis of amides)⁽⁸⁾:

Immobilized CALB8

Example 9(Acylation of amines)⁽⁹⁾:

Immobilized CALB9
Immobilized CALB9-1

Example 10(Aza-Michael addition reaction)⁽¹⁰⁾:

Immobilized CALB10
Immobilized CALB10-1

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