Unveiling the mechanism of in situ crystallization in the spray drying of sugars / M. W. Woo in Industrial & engineering chemistry research, Vol. 51 N° 36 (Septembre 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 36 (Septembre 2012) . - pp. 11791-11802 Titre : Unveiling the mechanism of in situ crystallization in the spray drying of sugars Type de document : texte imprimé Auteurs : M. W. Woo, Auteur ; N. Fu, Auteur ; F. T. Moo, Auteur Année de publication : 2012 Article en page(s) : pp. 11791-11802 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Spray drying Crystallization In situ Résumé : This work explored the significance of the drying history dependent effect on in situ crystallization in spray drying. Analysis was based on actual single droplet drying kinetics at different drying air temperatures. This paper reports the changes in droplet Tg, T ― Tg, solubility, and supersaturation based on actual experimental data as drying progressed. The glass transition analysis suggests that a critical crystallization period might be significant for in situ crystallization in spray drying. This finding highlights the danger in using the final particle condition, delineated by the dyer outlet conditions, as a measure of partial crystallization in spray dried particles. Extended analysis using the nucleation-growth mechanism pointed to the same crystallization phenomenon analogous to the critical crystallization period concept. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26350346 [article] Unveiling the mechanism of in situ crystallization in the spray drying of sugars [texte imprimé] / M. W. Woo, Auteur ; N. Fu, Auteur ; F. T. Moo, Auteur . - 2012 . - pp. 11791-11802. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 36 (Septembre 2012) . - pp. 11791-11802 Mots-clés : Spray drying Crystallization In situ Résumé : This work explored the significance of the drying history dependent effect on in situ crystallization in spray drying. Analysis was based on actual single droplet drying kinetics at different drying air temperatures. This paper reports the changes in droplet Tg, T ― Tg, solubility, and supersaturation based on actual experimental data as drying progressed. The glass transition analysis suggests that a critical crystallization period might be significant for in situ crystallization in spray drying. This finding highlights the danger in using the final particle condition, delineated by the dyer outlet conditions, as a measure of partial crystallization in spray dried particles. Extended analysis using the nucleation-growth mechanism pointed to the same crystallization phenomenon analogous to the critical crystallization period concept. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26350346

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