GROWTH RATE INHIBITION OF SOME SPOILAGE FUNGI OF FOOD BY MAGNETIC FIELD | ||||
| Misr Journal of Agricultural Engineering | ||||
| Article 16, Volume 31, Issue 1, January 2014, Page 299-308 PDF (786.38 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/mjae.2014.100004 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| A. E. Abdelhameed | ||||
| Lect., Agr. Eng., Fac. of Agr. Eng Al- Azhar Univ., Cairo., Egypt. | ||||
| Abstract | ||||
| The main objective of this paper was to study the inhibitory effects of static and oscillating magnetic field on growth rate of pathogenic fungus for extending the shelf life of food. The treatment of various food material with the static or oscillating magnetic field reduces the growth rate of the different selected fungus species. The spoilage fungi used to experiments procedure were include the specie of Plasmopara viticola, Rhizopus stolonifer, Asperguillus niger and Rhizopus nigricans was isolated respectively from cheese, apple, bread. Some fungus were more sensitive to the magnetic field. The effect of oscillating magnetic field was more active compared with static magnetic field with the same exposure times. The inhibition rate of fungus was increased in both static and oscillating magnetic fields percent of the control, this relative increase was larger than 55 % with static magnetic field after 120 h at 0.4 T and 72% with oscillating magnetic field after 120 h at 0.25 T. | ||||
| References | ||||
|
Barbosa, G.V., Pothakamury U.R., and Swanson B.G., (1998). Nonthermal Preservation of foods (Oscillating magnetic field). Marcel Dekker, New York: 113-135
Filtenborg, O., Frisvad, J.C. &Thrane, U. (1996). Moulds in food spoilage.International Journal of Food Microbiology 33: 85-102.
LIPIEC, J., JANAS, P. and BARABASZ, W. (2004). Effect of oscillating magnetic field pulses on the survival of selected microorganisms.In International Journal ofAgrophysics, 18: 325-328.
Lund, F., Filtenborg, O. &Frisvad, J.C. (1995). Associated Mycoflora of Cheese. Food Microbiology, 12: 173-180.
Nagy P. (2005). The effect of low inductivity static magnetic field on some plant pathogen fungi. Electro. And Magnetobiology, 11: 152-163
Pitt, J.J. & Hocking, A.D. (1999). Fungi and food spoilage. Second ed. Aspen Publications: 122 -133
Ruzic R., Gogala N. and Jerman I. (1997) Sinusoidal magnetic fields: effect on the growth and content of ergosterol in mycorrhizal fungi. Electro. Magnetobiol. 16(2): 129-142.
Sadauskas K. K., Lugauskas A. Y. and Mikulskene A. I. (1987). Effects of constant and pulsating low-frequency magnetic field on microscopic fungi. Mikologija I Fitopatologija 21: 160-163.
Wilson E. O. and Bosset W. H. (1981). Bevezetés a populációbiológiába (A Primer of Population Biology). Budapest: Gondolat,: 130-133 | ||||
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