TY - JOUR
T1 - Influence of the acid type in the production of chitosan films reinforced with bacterial nanocellulose
AU - Velásquez-Cock, J.
AU - Ramírez, E.
AU - Betancourt, S.
AU - Putaux, J. L.
AU - Osorio, M.
AU - Castro, C.
AU - Gañán, P.
AU - Zuluaga, R.
PY - 2014/8
Y1 - 2014/8
N2 - Chitosan films reinforced with bacterial cellulose (BC) nanoribbons were studied to understand the influence of acid (acetic and lactic acids) on the reinforcing effect. For both acids, the maximum concentration of the reinforcing constituent was 5. wt% with respect to the dry weight of chitosan. The infrared spectra, mechanical properties, morphology and antimicrobial activity of the films were analyzed. The results showed a difference between the acids in their behavior and effect on the reinforcement, with a tensile strength of 12.3. MPa for the acetic acid films and 3.3. MPa for the lactic acid films. Additionally, the bacterial inhibition tests were shown to be positive for the lactic acid films and negative for the acetic acid films. Therefore, exchanging the acid used in these films may be desirable for certain applications.
AB - Chitosan films reinforced with bacterial cellulose (BC) nanoribbons were studied to understand the influence of acid (acetic and lactic acids) on the reinforcing effect. For both acids, the maximum concentration of the reinforcing constituent was 5. wt% with respect to the dry weight of chitosan. The infrared spectra, mechanical properties, morphology and antimicrobial activity of the films were analyzed. The results showed a difference between the acids in their behavior and effect on the reinforcement, with a tensile strength of 12.3. MPa for the acetic acid films and 3.3. MPa for the lactic acid films. Additionally, the bacterial inhibition tests were shown to be positive for the lactic acid films and negative for the acetic acid films. Therefore, exchanging the acid used in these films may be desirable for certain applications.
KW - Acetic acid
KW - Antimicrobial films
KW - Bacterial cellulose nanoribbons
KW - Chitosan
KW - Lactic acid
UR - http://www.scopus.com/inward/record.url?scp=84901982097&partnerID=8YFLogxK
U2 - 10.1016/j.ijbiomac.2014.05.040
DO - 10.1016/j.ijbiomac.2014.05.040
M3 - Artículo en revista científica indexada
C2 - 24875317
AN - SCOPUS:84901982097
SN - 0141-8130
VL - 69
SP - 208
EP - 213
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
ER -