Black pepper (Piper nigrum L.) bacterial decontamination by sterilization and microwave treatments

Keywords: black pepper, drying, microwave irradiation, bacterial decontamination

Abstract

Microbial number reduction in spices through various treatments represents a necessity considering possible changes which may occur during spices’ storage and application in food resulting in public health risk. The present study was conducted in order to examine the effects of sterilisation and microwave irradiation treatments on total mesophilic aerobic bacteria (TMAB) and bacterial spore content reduction in black pepper. Treatments applied were: sterilisation at 130 °C during 30, 60 and 90 min; and microwave irradiation at a power level of 600 W during 1.5, 3, and 5 min. Prolongation of the sterilisation treatment expressed positive influence on TMAB and bacterial spore reduction in black pepper.

Compared to the sterilisation, microwave irradiation treatment exhibited better results in terms of black pepper decontamination. Maximal decontamination regarding TMAB and bacterial spore was achieved in black pepper samples treated with microwave irradiation during 3 min. The present results suggest that microwave irradiation could be applied in black pepper decontamination considering better effectiveness compared to the sterilisation treatment.

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References

[1] CBI. The spice and herbs market in the EU, (2010).
[2] S. E. Keller, J. M. VanDoren, E. M. Grasso, L. A. Halik, Growth and survival of Salmonella in ground black pepper (Piper nigrum), Food Microbiology, 34 (2013), pp. 182-188.
[3] C. Little, R. Omotoye, R. Mitchell, The microbiological quality of ready-to- eat foods with added spices, International Journal of Environmental Health Research, 13(1) (2003), pp. 31-42.
[4] H. J. Buckenhuskes, M. Rendlen, Hygienic problems of phytogenic raw materials for food production with special emphasis to herbs and spices. Food Science and Biotechnology, 13 (2004), pp. 262-268.
[5] A. C. Ristori, M. A. S .Pereira, D. S. Gelli, Behavior of Salmonella Rubislaw on ground black pepper (Piper nigrum L.), Food Control, 18(3) (2007), pp. 268–272.
[6] J. Piggott, Z. Othman, Effect of irradiation on volatile oils of black pepper, Food Chemistry, 46(2) (1993), pp. 115-119.
[7] G. C. Jeevitha, H. B. Sowbhagya, H. U. Hebbar, Application of microwaves for microbial load reduction in black pepper (Piper nigrum L.), Journal of The Science of Food and Agriculture, 96 (2016), pp. 4243–4249.
[8] U. Schweiggert, R. Carle, A. Schieber, Conventional and alternative processes for spice production - a review, Trends in Food Science & Technology, 18(5) (2007), pp. 260-268.
[9] R. V. Decareau, Microwaves in the Food Processing Industry, Academic Press, Inc., New York, 1985
[10] M. Bouraoui, P. Richard, T. Durance, Microwave and convective drying of potato slices, Journal of Food Process Engineering, 17 (1994), pp. 353–363.
[11] J. Canumir, J. Celis, J. Bruijn, L. Vidal, Pasteurisation of Apple Juice by Using Microwaves, LWT - Food Science and Technology, 35 (2002), pp. 389-392.
[12] ISO 4833-2. Microbiology of the food chain -- Horizontal method for the enumeration of microorganisms -- Part 2: Colony count at 30 degrees C by the surface plating technique (2013)
Published
2019-12-03
How to Cite
Djordjević, M., Sterniša, M., Smole Možina, S., Beszédes, S., Šoronja Simović, D., Hodúr, C., Jokić, A., & Šereš, Z. (2019). Black pepper (Piper nigrum L.) bacterial decontamination by sterilization and microwave treatments. Analecta Technica Szegedinensia, 13(2), 1-5. https://doi.org/10.14232/analecta.2019.2.1-5
Section
Articles