Modification of banana starch (Musa paradisiaca L.) with polyethylene terephthalate: Virgin and bottle waste

Ramírez-Centeno Silvia; Marcos-Fernández Angel; Aparicio-Saguilán Alejandro; Navarro-Crespo Rodrigo; Ramírez-Hernández Aurelio; Báez-García José Eduardo; Delia Esther Páramo Calderón

doi:10.1016/j.carres.2021.108401

Modification of banana starch (Musa paradisiaca L.) with polyethylene terephthalate: Virgin and bottle waste

Carbohydr Res. 2021 Oct:508:108401. doi: 10.1016/j.carres.2021.108401. Epub 2021 Jul 14.

Authors

Ramírez-Centeno Silvia¹, Marcos-Fernández Angel², Aparicio-Saguilán Alejandro³, Navarro-Crespo Rodrigo⁴, Ramírez-Hernández Aurelio⁵, Báez-García José Eduardo⁶, Delia Esther Páramo Calderón⁷

Affiliations

¹ Universidad Del Papaloapan, Departamento de Química, Circuito Central 200, C.P. 68301, Tuxtepec, Oaxaca, Mexico. Electronic address: chivis_tkmas@hotmail.com.
² Instituto de Ciencia y Tecnología de Polímeros (ICTP), C/ Juan de La Cierva 3, 28006, Madrid, Spain. Electronic address: amarcos@ictp.csic.es.
³ Universidad Del Papaloapan, Departamento de Química, Circuito Central 200, C.P. 68301, Tuxtepec, Oaxaca, Mexico. Electronic address: alejandrosag@hotmail.com.
⁴ Instituto de Ciencia y Tecnología de Polímeros (ICTP), C/ Juan de La Cierva 3, 28006, Madrid, Spain. Electronic address: rnavarro@ictp.csic.es.
⁵ Universidad Del Papaloapan, Departamento de Química, Circuito Central 200, C.P. 68301, Tuxtepec, Oaxaca, Mexico. Electronic address: chino_raha@hotmail.com.
⁶ Universidad de Guanajuato, División de Ciencias Exactas Departamento de Química, Noria Alta S/N; C.P. 36050. Guanajuato, Guanajuato, Mexico. Electronic address: jebaez14@yahoo.com.mx.
⁷ Universidad Del Papaloapan, Departamento de Química, Circuito Central 200, C.P. 68301, Tuxtepec, Oaxaca, Mexico. Electronic address: de_paramo@yahoo.com.mx.

PMID: 34280805
DOI: 10.1016/j.carres.2021.108401

Abstract

Chemical modification of banana starch (Musa paradisiaca L.) with the degradation products of virgin and bottle waste of polyethylene terephthalate was carried out in situ. The modified starch was characterized by FTIR and NMR, which allowed proposing three chemical structures. SEM micrographs showed that the morphology of the modified starch granule is directly related with mass ratio of Starch/PET and type of PET used in the reaction. The crystallinity of the modified starch decreased up to 92.6% and 62.5% using bottle waste and virgin PET, respectively, according to XRD diffractograms. TGA analysis showed that the starch degradation temperature decreased by 12 °C. Modified starch films were elaborate and its electrical conductivity was found to be 2.9 times compared to that of native starch. The starch/PET film presented the highest value in the mechanical property of elongation at break compared to the starch-only film. The modified starch film was degraded above 80% by aqueous hydrolysis.

Keywords: Banana starch; Characterization; Films; PET.

MeSH terms

Musa*
Polyethylene Terephthalates*
Solubility
Starch / chemistry

Substances

Polyethylene Terephthalates
Starch