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Effects of multiphase transitions and reactive extrusion on in situ thermoplasticization/succination of cassava starch.
Carbohydr Polym 2019; 225:115250CP

Abstract

In this work, the effects of the multiphase transitions of starch, the screw configuration, and the conditions of reactive extrusion (REX) on the in situ thermoplasticization/succination of cassava starch were studied. Spectroscopic analyses indicated successful esterification during the REX with the appearance of characteristic bands of carbonyl ester groups. After the REX, the starch developed B- and V-type structures, with the OSA starches showing an additional peak at 7.1°. As the degree of substitution increased, a greater number of partially gelatinized granules were embedded in the starch matrix; an additional degradation temperature of 364.5 °C and a lower weight loss at the degradation temperature of the starch were observed. The incorporation of OS groups via REX imparts better thermal stability. The processing conditions helped prepare a thermoplastic-succinate starch in a single step through an environmentally friendly process.

Authors+Show Affiliations

CONACYT, Centro de Investigación en Química Aplicada (CIQA), Blvd. Ing. Enrique Reyna H. No. 140, Saltillo, Coahuila C.P. 25294, Mexico. Electronic address: heidi.fonseca@ciqa.edu.mx.Centro de Investigación en Química Aplicada (CIQA), Blvd. Ing. Enrique Reyna H. No. 140, Saltillo, Coahuila C.P. 25294, Mexico.Centro de Investigación en Química Aplicada (CIQA), Blvd. Ing. Enrique Reyna H. No. 140, Saltillo, Coahuila C.P. 25294, Mexico.Centro de Investigación en Química Aplicada (CIQA), Blvd. Ing. Enrique Reyna H. No. 140, Saltillo, Coahuila C.P. 25294, Mexico.Centro de Investigación en Química Aplicada (CIQA), Blvd. Ing. Enrique Reyna H. No. 140, Saltillo, Coahuila C.P. 25294, Mexico.Centro de Investigación en Química Aplicada (CIQA), Blvd. Ing. Enrique Reyna H. No. 140, Saltillo, Coahuila C.P. 25294, Mexico.Centro de Investigación en Química Aplicada (CIQA), Blvd. Ing. Enrique Reyna H. No. 140, Saltillo, Coahuila C.P. 25294, Mexico.Centro de Investigación en Química Aplicada (CIQA), Blvd. Ing. Enrique Reyna H. No. 140, Saltillo, Coahuila C.P. 25294, Mexico.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31521277

Citation

Fonseca-Florido, H A., et al. "Effects of Multiphase Transitions and Reactive Extrusion On in Situ Thermoplasticization/succination of Cassava Starch." Carbohydrate Polymers, vol. 225, 2019, p. 115250.
Fonseca-Florido HA, Soriano-Corral F, Yañez-Macías R, et al. Effects of multiphase transitions and reactive extrusion on in situ thermoplasticization/succination of cassava starch. Carbohydr Polym. 2019;225:115250.
Fonseca-Florido, H. A., Soriano-Corral, F., Yañez-Macías, R., González-Morones, P., Hernández-Rodríguez, F., Aguirre-Zurita, J., ... Rodríguez-Velázquez, J. (2019). Effects of multiphase transitions and reactive extrusion on in situ thermoplasticization/succination of cassava starch. Carbohydrate Polymers, 225, p. 115250. doi:10.1016/j.carbpol.2019.115250.
Fonseca-Florido HA, et al. Effects of Multiphase Transitions and Reactive Extrusion On in Situ Thermoplasticization/succination of Cassava Starch. Carbohydr Polym. 2019 Dec 1;225:115250. PubMed PMID: 31521277.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of multiphase transitions and reactive extrusion on in situ thermoplasticization/succination of cassava starch. AU - Fonseca-Florido,H A, AU - Soriano-Corral,F, AU - Yañez-Macías,R, AU - González-Morones,P, AU - Hernández-Rodríguez,F, AU - Aguirre-Zurita,J, AU - Ávila-Orta,C, AU - Rodríguez-Velázquez,J, Y1 - 2019/08/26/ PY - 2019/05/20/received PY - 2019/08/21/revised PY - 2019/08/25/accepted PY - 2019/9/16/entrez PY - 2019/9/16/pubmed PY - 2019/9/16/medline KW - Modified starch KW - Molecular disorganization KW - Processing KW - Reactive extrusion KW - Thermal stability SP - 115250 EP - 115250 JF - Carbohydrate polymers JO - Carbohydr Polym VL - 225 N2 - In this work, the effects of the multiphase transitions of starch, the screw configuration, and the conditions of reactive extrusion (REX) on the in situ thermoplasticization/succination of cassava starch were studied. Spectroscopic analyses indicated successful esterification during the REX with the appearance of characteristic bands of carbonyl ester groups. After the REX, the starch developed B- and V-type structures, with the OSA starches showing an additional peak at 7.1°. As the degree of substitution increased, a greater number of partially gelatinized granules were embedded in the starch matrix; an additional degradation temperature of 364.5 °C and a lower weight loss at the degradation temperature of the starch were observed. The incorporation of OS groups via REX imparts better thermal stability. The processing conditions helped prepare a thermoplastic-succinate starch in a single step through an environmentally friendly process. SN - 1879-1344 UR - https://www.unboundmedicine.com/medline/citation/31521277/Effects_of_multiphase_transitions_and_reactive_extrusion_on_in_situ_thermoplasticization/succination_of_cassava_starch L2 - https://linkinghub.elsevier.com/retrieve/pii/S0144-8617(19)30917-8 DB - PRIME DP - Unbound Medicine ER -