TY - GEN
T1 - Study of the rehydration kinetics of nixtamalized corn by using two nixtamalization methods
AU - Tamayo-Rios, Rodrigo A.
AU - Lescano, Leslie
AU - Novoa, Danny Chávez
AU - Anticona, Alexander Vega
AU - Linares, Guillermo
AU - Rojas, Meliza Lindsay
AU - Sánchez-González, Jesús
N1 - Publisher Copyright:
© 2021 Latin American and Caribbean Consortium of Engineering Institutions. All rights reserved.
PY - 2021
Y1 - 2021
N2 - The present work aimed to study the rehydration kinetics of previously nixtamalized and dried corn. Nixtamalization was carried out by two methods: using wood ash (classical method) and using calcium hydroxide (Ca(OH)2) (traditional method), after the samples were sun-dried. The rehydration kinetics was described using six mathematical models (Fick, Peleg, Weibull, Page, Ibarz et al. and first-order model) in which the possible interpretation of its parameters and the goodness of fit was evaluated. As results, it was obtained that the nixtamalization with wood ash obtained better rehydration properties. The kinetic parameters values of all the used models showed that the rehydration in this treatment was the fastest. In addition, this treatment also reached a high moisture content (49.22 ± 2.10% w.b.) compared to other treatments (Control and Ca(OH)2). The evaluation of the models fit suggests that the first-order model is not adequate to describe the rehydration in any treatment here evaluated, while Fick is suitable to describe the rehydration of Control samples (without treatment), and the models such as Page, Peleg or Weibull are suitable for describing rehydration in samples processed by nixtamalization, especially with ash.
AB - The present work aimed to study the rehydration kinetics of previously nixtamalized and dried corn. Nixtamalization was carried out by two methods: using wood ash (classical method) and using calcium hydroxide (Ca(OH)2) (traditional method), after the samples were sun-dried. The rehydration kinetics was described using six mathematical models (Fick, Peleg, Weibull, Page, Ibarz et al. and first-order model) in which the possible interpretation of its parameters and the goodness of fit was evaluated. As results, it was obtained that the nixtamalization with wood ash obtained better rehydration properties. The kinetic parameters values of all the used models showed that the rehydration in this treatment was the fastest. In addition, this treatment also reached a high moisture content (49.22 ± 2.10% w.b.) compared to other treatments (Control and Ca(OH)2). The evaluation of the models fit suggests that the first-order model is not adequate to describe the rehydration in any treatment here evaluated, while Fick is suitable to describe the rehydration of Control samples (without treatment), and the models such as Page, Peleg or Weibull are suitable for describing rehydration in samples processed by nixtamalization, especially with ash.
KW - Corn
KW - Mass transfer
KW - Mathematical modeling
KW - Nixtamalization
KW - Rehydration
UR - http://www.scopus.com/inward/record.url?scp=85122026754&partnerID=8YFLogxK
U2 - 10.18687/LACCEI2021.1.1.45
DO - 10.18687/LACCEI2021.1.1.45
M3 - Conference contribution
AN - SCOPUS:85122026754
T3 - Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology
BT - 19th LACCEI International Multi-Conference for Engineering, Education Caribbean Conference for Engineering and Technology
A2 - Larrondo Petrie, Maria M.
A2 - Zapata Rivera, Luis Felipe
A2 - Aranzazu-Suescun, Catalina
T2 - 19th LACCEI International Multi-Conference for Engineering, Education Caribbean Conference for Engineering and Technology: "Prospective and Trends in Technology and Skills for Sustainable Social Development" and "Leveraging Emerging Technologies to Construct the Future", LACCEI 2021
Y2 - 19 July 2021 through 23 July 2021
ER -