Abstract
The investigation on etheric oils content in garlic, horseradish, leek, onion and celery were presented. The seasoning vegetables were frozen using two diversified techniques and thawed in air at conditions of natural convection. General contents of etheric oils were assessed with Deryng’s apparatus by the II method. As a result the depletion of oils content in the frozen garlic and its increasing in the frozen horseradish was stated, with respect to the not-treated raw material. In the case of frozen onion, leek and the celery the changes in the level of oils contained were not significant.
References
- Góral D., Kluza F., 2005. Technologie i technologiczne uwarunkowania chłodniczej obróbki produktów rolniczych metodą impingement, Jubileuszowa międzynarodowa konferencja naukowa, XXXV lat Wydziału Inżynierii Produkcji AR, Lublin, 207–208.
- Góral D., Kluza F., 2006. Physical changes of vegetables during freezing by conventional and impingement methods, Acta Agrophysica, 7(1), 59–71.
- Iwińska I., 1974. Badanie i ocena jakości produktów spożywczych. PWE. Warszawa.
- Jeremiach L. E., 1996. Freezing effects of Food Quality. New York, Marcel Dekker AG.
- Paulsen K. P., 1977. The freezing process under industrial conditions. Bull. IIR Ann. Karlsruhe. 1, 347–353.
- Person P.O., 1967. Fluidizing technique in Food Freezing. ASHRAE J. 6, 42–44.
- Pijanowski E., Dłużewski M., Dłużewska A., Jarczyk A., 1997. Ogólna Technologia Żywności, WNT Warszawa.
- Soto V., Borquez R., 2001. Impingement jet freezing of biomaterials, Food Control, 12, 515–522.
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