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A new high-pressure micronisation process for the gentle processing of high molecular mass gelatine

Paper ID Volume ID Publish Year Pages File Format Full-Text
19311 43059 2012 8 PDF Available
Title
A new high-pressure micronisation process for the gentle processing of high molecular mass gelatine
Abstract

This article introduces a new high-pressure process for the gentle drying, micronisation and formulation of high molecular mass gelatine. Spray drying of gelatine solutions is a well-established process for very low molecular weight gelatine, aqueous solutions containing low gelatine concentrations or gelatine solutions containing viscosity reducing additives. In the introduced process, supercritical CO2 was applied to micronised aqueous gelatine solutions and was then expanded from high pressure into a spraying chamber to remove the water content by extraction and evaporation under moderate conditions. The resulting product was analysed using common powder analysis methods. Aqueous gelatine solutions with a dry mass content of up to 50 wt.% with a molecular mass of 156,000 g mol−1 were pulverised and dried with this process, with only limited degradation by hydrolysis during processing.

► Aqueous gelatine solutions, mixed with scCO2, were atomised through a nozzle. ► Dry mass contents can be up to 60 wt.%. ► The result is a dry powder. ► Processing lowers the molecular weight only slightly.

Keywords
BET, Brunnauer Emmet Teller; GAB, Guggenheim Andersson deBoer; HPLC, high performance liquid chromatography; PET, polyethylene; PGSS, particles from gas-saturated solutions; PP, polypropylene; SEM, scanning electron microscopy; SEC, size exclusion chromat
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A new high-pressure micronisation process for the gentle processing of high molecular mass gelatine
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 90, Issue 2, April 2012, Pages 79–86
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us