Pharmarom GmbH

Am Rottböhl 4, D-64331 Weiterstadt
Phone: +49 (0) 61 50 64 00
Fax.: +49 (0) 61 50 8 39 43
 About us/Contact
 Product overview
 Microencapsulated oils
 Recovery processes
Introduction & objectives
Sizes, contents and walls
Capsule wall modifications and & capsule types
 Application areas
 Suggested applications

Sizes, contents and walls

Capsule sizes

The size of a capsule can vary from just a few microns to several
millimetres: the following descriptions and names apply here:

Capsules smaller than 1 micron = nanocapsule
Capsules between 1 and 1000 microns = microcapsules
Capsules larger than 1000 microns = Macrocapsules

Capsule contents

The capsule content (encapsulated ingredient) can comprise up to 95%.

Capsule wall

A variety of natural and synthetic polymers are available as capsule wall material:

  • Gelatines, fish collagens, rubber arrabicum, albumen, fibrinogens, casein, haemoglobin, zein, alginate, carragheen, agar-agar, chitosan, arabino-galactan, gelan, cellulose, polyvinylalcohol, polyacroleins, polyamides, polyethyleneglycoles, ethyl and Styrolmaleinacidanhydride copolymers etc.

Furthermore natural and synthetic fats and waxes such as:

  • bees wax, carnauba wax, stearin acid, paraffin, glycerinemonostearates, hydrated plant oils and much more.

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