TY - JOUR
T1 - Analysis of maize seed germs by photoacoustic microscopy and photopyroelectric technique
AU - Pacheco, A. Domínguez
AU - Aguilar, C. Hernández
AU - Cruz-Orea, A.
N1 - Funding Information:
Acknowledgments The authors acknowledge the CONACYT for Project No. 103632, and the Instituto Politécnico Nacional through COFAA and EDI scholarships. Also, we thank Area de Producción de Semillas del Colegio de Postgraduados, Campus Montecillo and Photothermal Techniques Laboratory of Physics Department, CINVESTAV-IPN for support to develop the experiments of the present study. We also thank Ing. Esther Ayala.
PY - 2013/5
Y1 - 2013/5
N2 - A knowledge about thermal parameters of structural components of maize seed is of great relevance in the seed technology practice. The objective of the present study was to determine the thermal effusivity of germs of maize (Zea mays L.) of different genotypes by means of the photopyroelectric technique (PPE) in the inverse configuration and obtaining the thermal imaging of these samples by photoacoustic microscopy (PAM). Germs from crystalline maize (white pigment), semi-crystalline maize (yellow pigment), and floury maize (blue pigment) were used in this investigation. The results show differences between germs of maize seeds mainly in the values of their thermal effusivities. The thermal images showed minimum inhomogeneity of these seed germs. Characterizations of thermal parameters in seeds are important in agriculture and food production and could be particularly useful to define their quality and determine their utility. PPE and PAM can be considered as potential diagnostic tools for the characterization of agriculture seeds.
AB - A knowledge about thermal parameters of structural components of maize seed is of great relevance in the seed technology practice. The objective of the present study was to determine the thermal effusivity of germs of maize (Zea mays L.) of different genotypes by means of the photopyroelectric technique (PPE) in the inverse configuration and obtaining the thermal imaging of these samples by photoacoustic microscopy (PAM). Germs from crystalline maize (white pigment), semi-crystalline maize (yellow pigment), and floury maize (blue pigment) were used in this investigation. The results show differences between germs of maize seeds mainly in the values of their thermal effusivities. The thermal images showed minimum inhomogeneity of these seed germs. Characterizations of thermal parameters in seeds are important in agriculture and food production and could be particularly useful to define their quality and determine their utility. PPE and PAM can be considered as potential diagnostic tools for the characterization of agriculture seeds.
KW - Effusivity
KW - Maize seed
KW - Photoacoustic microscopy
KW - Photopyroelectric
UR - http://www.scopus.com/inward/record.url?scp=84879800055&partnerID=8YFLogxK
U2 - 10.1007/s10765-012-1361-3
DO - 10.1007/s10765-012-1361-3
M3 - Artículo
SN - 0195-928X
VL - 34
SP - 979
EP - 985
JO - International Journal of Thermophysics
JF - International Journal of Thermophysics
IS - 5
ER -