TY - JOUR
T1 - Morphological characterization of the growing front of Rhizopus oligosporus in solid media
AU - Díaz, Brenda Hildeliza Camacho
AU - Aparicio, Antonio Jiménez
AU - Chanona-Pérez, José Jorge
AU - Calderón-Domínguez, Georgina
AU - Alamilla-Beltrán, Liliana
AU - Hernández-Sánchez, Humberto
AU - Gutiérrez-López, Gustavo F.
PY - 2010/12
Y1 - 2010/12
N2 - Rhizopus oligosporus is used to prepare tempeh and is formed by hyphae which grow as a complex branched structure with irregular borders. The objective of this research was to characterize the macro and micro structural development of R. oligosporus colonies growing on solid media in Petri dishes through image processing and fractal dimension. Stereomicroscope images of the colony were used to detecting the zone in which the fractal dimension (FDE) of the edge (growing front) of the colony represented 97% of the maximum FDE for the 80% of the image of the border. Evaluated characteristics were: radial growth, number of tips in the growing front and the average length of hypha. Two simultaneous events of different and oscillating magnitude were detected in the growing front: branching and increase of the average hypha length. Biomass had a good correlation with radius of the colony, fractal dimension of texture (FDT) and number of tips in the border.
AB - Rhizopus oligosporus is used to prepare tempeh and is formed by hyphae which grow as a complex branched structure with irregular borders. The objective of this research was to characterize the macro and micro structural development of R. oligosporus colonies growing on solid media in Petri dishes through image processing and fractal dimension. Stereomicroscope images of the colony were used to detecting the zone in which the fractal dimension (FDE) of the edge (growing front) of the colony represented 97% of the maximum FDE for the 80% of the image of the border. Evaluated characteristics were: radial growth, number of tips in the growing front and the average length of hypha. Two simultaneous events of different and oscillating magnitude were detected in the growing front: branching and increase of the average hypha length. Biomass had a good correlation with radius of the colony, fractal dimension of texture (FDT) and number of tips in the border.
KW - Fractal dimension
KW - Fungus skeletonized images
KW - Image processing
KW - Oscillating growing of fungus
KW - R. oligosporus growing front
UR - http://www.scopus.com/inward/record.url?scp=77955718134&partnerID=8YFLogxK
U2 - 10.1016/j.jfoodeng.2010.06.028
DO - 10.1016/j.jfoodeng.2010.06.028
M3 - Artículo
SN - 0260-8774
VL - 101
SP - 309
EP - 317
JO - Journal of Food Engineering
JF - Journal of Food Engineering
IS - 3
ER -