Aim. The objective of this work was to develop and validate a method for determining the degree of molar deacetylation of chitosan acetate and chitosan lactate, as well as to study the stability of both salts. Materials and Methods. A spectrophotometric method was validated according to internationally-established quantitative techniques. Three industrial batches of chitosan acetate and chitosan lactate, obtained by spray drying, were stored under shelf life conditions for twelve months. Organoleptic characteristics, the degree of molar deacetylation, pH, loss on drying and microbiological count were determined at the beginning and end of the study. Results and Discussion. The statistical data proved that the two methods complied wit...
Micropartículas de aciclovir/quitosana de liberação prolongada foram desenvolvidas pela técnica de s...
A quitosana é um polímero natural obtido a partir da desacetilação química da quitina, sendo a quiti...
O presente trabalho estudou duas vias reacionais para a preparação de derivados cationizados de quit...
Aim: The objective of this work was to develop and validate a method for determining the degree of m...
Aim. The objective of this work was to develop and validate a method for determining the degree of m...
We investigated a spray drying process for preparing water-soluble salts of high molecular weight ch...
Chitosan is increasingly used as an alternative to synthetic polymers due to its water solubility, b...
Quitosanas comercial e purificadas nas formas neutra, acetato e cloridrato foram caracterizadas e co...
Submitted by Taís Renata Pereira Amorim (tatahamorim_sjn@hotmail.com) on 2014-07-25T18:23:13Z No. o...
The effects of spray-drying process and acidic solvent system on physicochemical properties of chito...
The present work analyses different chitosan synthesized derivatives from the point of view of their...
Quitosana é um biopolímero encontrado principalmente na parede celular de crustáceos e é obtida pela...
El quitosano es el derivado parcialmente deacetilado de la quitina. El conocimiento del comportamien...
The viscosity of chitosan lactate solutions in the concentration range of interest for practical app...
The biocompatibility of chitosan and chitosan quaternary salt coatings was evaluated for use as edib...
Micropartículas de aciclovir/quitosana de liberação prolongada foram desenvolvidas pela técnica de s...
A quitosana é um polímero natural obtido a partir da desacetilação química da quitina, sendo a quiti...
O presente trabalho estudou duas vias reacionais para a preparação de derivados cationizados de quit...
Aim: The objective of this work was to develop and validate a method for determining the degree of m...
Aim. The objective of this work was to develop and validate a method for determining the degree of m...
We investigated a spray drying process for preparing water-soluble salts of high molecular weight ch...
Chitosan is increasingly used as an alternative to synthetic polymers due to its water solubility, b...
Quitosanas comercial e purificadas nas formas neutra, acetato e cloridrato foram caracterizadas e co...
Submitted by Taís Renata Pereira Amorim (tatahamorim_sjn@hotmail.com) on 2014-07-25T18:23:13Z No. o...
The effects of spray-drying process and acidic solvent system on physicochemical properties of chito...
The present work analyses different chitosan synthesized derivatives from the point of view of their...
Quitosana é um biopolímero encontrado principalmente na parede celular de crustáceos e é obtida pela...
El quitosano es el derivado parcialmente deacetilado de la quitina. El conocimiento del comportamien...
The viscosity of chitosan lactate solutions in the concentration range of interest for practical app...
The biocompatibility of chitosan and chitosan quaternary salt coatings was evaluated for use as edib...
Micropartículas de aciclovir/quitosana de liberação prolongada foram desenvolvidas pela técnica de s...
A quitosana é um polímero natural obtido a partir da desacetilação química da quitina, sendo a quiti...
O presente trabalho estudou duas vias reacionais para a preparação de derivados cationizados de quit...