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- Title
ANÁLISIS DE FRUTOS DE GUAYABA (Psisium guajava L.) BAJO COMPRESIÓN Y SU RELACIÓN CON LOS PROCESOS FISIOLÓGICOS.
- Authors
Yam Tzec, José Antonio; Perea, Carlos Alberto Villaseñor; Kriuchkova, Eugenio Romantchik; Escobar, Martín Soto; Peralta, Miguel Ángel Peña
- Abstract
The importance of the guava lies in the economical contribution for some regions in Mexico. The fruits are harvested in areas which have a certain type of conditions in Mexico, similar to those of Zacatecas, Aguascalientes and Michoacán. Several problems related to mechanical damage, such as those that happen during harvesting, transporting and storage appear during the commercialization. The objective of this paper was to determinate the relation between the mechanical damage and the guava fruits physiological activity. Fruits of the Calvillo (Cv1) and Criolla (Cv2) varieties were exposed to compression at horizontal (p1) and vertically (p2) positions. Three axial compression distances were evaluated: elastic limit (d1), bioyield point (d2) and rupture point (d3). The production of ethylene and CO2 were measured and they were was found to be significant due to the fact that the production of these gases increased as the compression load increased, which was more noticeable by the second day of applied force of compression. The Cv2d1p2 treatment supported the highest compression load. The percentage of deformity was also measured, finding a higher rate of deformation in the Cv2p2 treatment with values of up to 43 %. In the case of Young module, values of 0.37 MPa for the Cv2 fruits and 0.32 MPa for the Cv1 fruits were reported. Variables were measured during the four days, finding weight loss of up to 13 %.
- Subjects
AGUASCALIENTES (Mexico : State); ZACATECAS (Mexico : State); MORELIA (Michoacan de Ocampo, Mexico); MEXICO; GUAVA; GUAVA industry; FRUIT harvesting; FRUIT transportation; FRUIT storage; FRUIT quality
- Publication
Ingeniería Agrícola y Biosistemas, 2009, Vol 1, Issue 1, p63
- ISSN
2007-4026
- Publication type
Article