I want to make pellets consisting of mainly the following:

• microcrystalline cellulose
• saccharose
• rice starch
• ascorbic acid
• glycerin

and an enzyme as active component.

Is it furthermore necessary to add protease inhibitors or other stabilizers to remain the activity of the enzymes for a periode of at least one year OR is the dry environment conservation enough?

The enzyme is called diamine oxidase and is extracted from pig kidney cortex through a series of centrifugation, filtration and dialysation. To be more precise, it is a liquid protein extract containing small amounts of this enzyme. No buffer etc. is added to the protein extract so far. The whole purification process is done at 4°C. I don't know how long the enzyme is stable without further preparation. Probably not that long because some proteases should remain in the natural homogenate from porcine kidney cortex. The other components of the pellets are of pharmaceutical quality. The aim of this experiment is to feed the pellets to dogs with digestive complaints. For this purpose the pellets will get a enteric coating to survive acid environment of the stomach.

I want to make pellets consisting of mainly the following:

• microcrystalline cellulose
• saccharose
• rice starch
• ascorbic acid
• glycerin

and an enzyme as active component.

Is it furthermore necessary to add protease inhibitors or other stabilizers to remain the activity of the enzymes for a periode of at least one year OR is the dry environment conservation enough?

The enzyme is called histaminase and is extracted from kidney cortex through a series of centrifugation, filtration and dialysation. To be more precise, it is a liquid protein extract containing small amounts of this enzyme. No buffer etc. is added to the protein extract so far. The whole purification process is done at 4°C. I don't know how long the enzyme is stable without further preparation. Probably not that long because some proteases should remain in the natural homogenate from porcine kidney cortex. The other components of the pellets are of pharmaceutical quality. The aim of this experiment is to feed the pellets to dogs with digestive complaints. For this purpose the pellets will get a enteric coating to survive acid environment of the stomach.

I want to make pellets consisting of mainly the following:

• microcrystalline cellulose
• saccharose
• rice starch
• ascorbic acid
• glycerin

and an enzyme as active component.

Is it furthermore necessary to add protease inhibitors or other stabilizers to remain the activity of the enzymes for a periode of at least one year OR is the dry environment conservation enough?

I want to make pellets consisting of mainly the following:

• microcrystalline cellulose
• saccharose
• rice starch
• ascorbic acid
• glycerin

and an enzyme as active component.

Is it furthermore necessary to add protease inhibitors or other stabilizers to remain the activity of the enzymes for a periode of at least one year OR is the dry environment conservation enough?

The enzyme is called diamine oxidase and is extracted from pig kidney cortex through a series of centrifugation, filtration and dialysation. To be more precise, it is a liquid protein extract containing small amounts of this enzyme. No buffer etc. is added to the protein extract so far. The whole purification process is done at 4°C. I don't know how long the enzyme is stable without further preparation. Probably not that long because some proteases should remain in the natural homogenate from porcine kidney cortex. The other components of the pellets are of pharmaceutical quality. The aim of this experiment is to feed the pellets to dogs with digestive complaints. For this purpose the pellets will get a enteric coating to survive acid environment of the stomach.

I want to make pellets consisting of mainly

• microcrystalline cellulose
• saccharose
• rice starch
• ascorbic acid
• glycerin

and an enzyme as active component.

Is it furthermore necessary to add protease inhibitors or other stabilizers to remain the activity of the enzymes for a periode of at least one year OR is the dry environment conservation enough?

Thank you for your reply!

I want to make pellets consisting of mainly the following:

• microcrystalline cellulose
• saccharose
• rice starch
• ascorbic acid
• glycerin

and an enzyme as active component.

Is it furthermore necessary to add protease inhibitors or other stabilizers to remain the activity of the enzymes for a periode of at least one year OR is the dry environment conservation enough?