Title
Photoacoustic characterization of wheat bread mixed with Moringa oleifera.
Date Issued
01 January 2021
Access level
open access
Resource Type
journal article
Author(s)
Hernandez-Aguilar C.
Dominguez-Pacheco A.
Valderrama-Bravo C.
Cruz-Orea A.
MartĆ­nez Ortiz E.
Ivanov R.
UniversitƩ de Poitiers
Publisher(s)
Elsevier B.V.
Abstract
Photoacoustic spectroscopy is applied to evaluate the impact of Moringa at different concentrations (0, 1.25, 2.5, 5 and 10%) on the elaboration, sanity, texture, and color of wheat bread. It was found that: i) Photoacoustic signal amplitude values of bread significantly increase from 37 to 90% when moringa powder concentration raises from 1.25% to 10%, at 300 nm wavelength. ii) Comparing the photoacoustic signal values at 300, 330, and 370 nm wavelengths, produced by the different bread types, there were statistically significant differences. iii) The sanitary quality of bread mixed with a 2.5% of moringa is relatively higher than the ones obtained for other concentrations, such that the number of fungal colonies were reduced by 99% in comparison with the control bread without moringa, after six days of storage. Moringa at 2.5% of concentration could thus improve the sanitary quality of wheat bread. iv) The addition of moringa for making bread slows down its textural changes (hardness, elasticity, cohesiveness, resilience, and chewiness) during storage. v) Finally, the highest correlation between the photoacoustic amplitude and the moringa concentration occurs at the wavelengths of 300 and 330 nm, which could be related to significant changes in the content of flavonoids and phenolic acids.
Start page
521
End page
531
Volume
4
Language
English
OCDE Knowledge area
Protección y nutrición de las plantas Física de partículas, Campos de la Física Alimentos y bebidas
Scopus EID
2-s2.0-85111673366
Source
Current Research in Food Science
Sponsor(s)
The authors would like to thank the ā€œInstituto PolitĆ©cnico Nacionalā€, through the CONACYT, COFAA and EDI projects, and SIP scholarships. The support of the Research and Postgraduate Secretariat (Project SIP 20196252, 20201809, 20211699 and 20211786) and the Photothermal Techniques Laboratory of the Physics Department at CINVESTAV-IPN to develop the experiments of the present study are greatly appreciated. We also thank Ing. Esther Ayala for her technical support at the Physics Department, CINVESTAV-IPN.
Sources of information: Directorio de Producción Científica Scopus