Sains Malaysiana 42(12)(2013): 1715–1720

 

Pengesahan bagi Mengesan Bakteria Patogen Makanan Menggunakan

Teknologi Mikroaturan DNA

(Validation of Food-borne Pathogen Detection using DNA Microarray Technology)

 

 

JELIN SAWEI, NORRAKIAH ABDULLAH SANI*, AMINAH ABDULLAH

& SAHILAH ABD. MUTALIB

Pusat Pengajian Sains Kimia dan Teknologi Makanan, Fakulti Sains dan Teknologi

Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor D.E. Malaysia

 

Received: 30 November 2011/Accepted: 22 July 2013

 

 

ABSTRAK

Kajian ini dijalankan untuk mengesahkan kemampuan teknologi DNA mikroaturan cip gen OliproTM FoodPATH bagi mengesan bakteria patogen makanan. Sebanyak 9 jenis DNA bakteria patogen makanan telah digunakan iaitu Bacillus cereus, Escherichia coli O157:H7, Staphylococcus aureus, Vibrio cholerae, Vibrio parahaemolyticus, Listeria monocytogenes, Salmonella spp., Shigella spp. dan Campylobacter spp. Sebanyak 36 kombinasi templat DNA bakteria patogen makanan telah digunakan. Pengesahan bagi mengesan bakteria patogen makanan dilakukan dengan menggunakan kaedah reaksi berantai polimerase (PCR) dan penghibridan Southern-blotting di atas cip gen untuk mengesahkan kemampuannya. Keputusan daripada analisis hibridasi di atas cip gen telah dibandingkan dengan hasil gel elektroforesis 2.0% (w/v). Lima saringan diperlukan untuk menghabiskan 36 kombinasi templat DNA bakteria patogen makanan. Setiap saringan, satu cip gen telah digunakan sebagai kawalan negatif tidak diinokulasikan dengan sebarang kombinasi DNA bakteria patogen makanan. Daripada hasil kajian, didapati bahawa semua kombinasi templat DNA bakteria patogen makanan telah dapat dikesan. Cip yang digunakan sebagai kawalan negatif tidak menunjukkan kehadiran DNA. Oleh itu, daripada kajian ini cip gen OliproTM FoodPATH didapati memberikan keputusan yang lebih baik berbanding dengan 2.0% (w/v) gel elektroforesis.

 

Kata kunci: Bakteria patogen makanan; cip gen OliproTM FoodPATH, mikroaturan DNA

 

ABSTRACT

This study was conducted to validate the capability of DNA microarray technology of OliproTM FoodPATH Gene Chip in detecting food-borne pathogens. Nine types of food-borne pathogen DNAs were used namely Bacillus cereus, Escherichia coli 0157:H7, Staphylococcus aureus, Vibrio cholerae, Vibrio parahaemolyticus, Listeria monocytogenes, Salmonella spp., Shigella spp. and Campylobacter spp. A total of 36 combinations of DNA templates of food-borne pathogens were used. Polymerase chain reaction (PCR) and Southern-Blotting Hybridization methods were used on the gene chip to validate its capability. The results of hibridization on gene chip were compared with results from gel electrophoresis of 2.0% (w/v). Five screenings were required to complete the 36 combinations of DNA templates of food-borne pathogen. For each screening, one gene chip was used as negative control, whereby no DNA templates of food-borne pathogen were inoculated. The results showed that all combinations of food-borne pathogen DNA templates were detected. The negative control chip did not show the presence of any DNA. This study showed that OliproTM FoodPATH Gene Chip gave better results than the 2.0% (w/v) gel electrophoresis.

 

Keywords: DNA microarray; food-borne pathogen; OliproTM FoodPATH gene ghip

REFERENCES

Anon. 2010. Olipro Biotechnology. Your Diagnostic and Screening Technologies Provider. (atas talian) www. oliprobiotech.com (1 Januari 2011).

Bang, J., Beuchat, L.R., Song, H., Gu, M.B., Chang, H.I., Kim, H.S. & Ryu, J.H. 2013. Development of a random genomic DNA microarray for the detection and identification of Listeria monocytogenesin milk. International Journal of Food Microbiology 161(2): 134-141.

Brook, M.G. & Bannister, B.A. 1991. Verocytoxin producing Escherichia coli. British Medical Journal 303: 800-801.

Bernama. 2007. Utusan Malaysia: Kes keracunan makanan di sekolah naik lebih 100 peratus. (atas talian) http:// www.utusan.com.my/utusan/info.asp?y=2007&dt=1028& pub=Utusan_Malaysia&sec=Terkini&pg=bt_01.htm. (28 Oktober 2007).

Cao, B.Y., Li, R.R., Xiong, S.J., Yao, F.F., Liu, X.Q., Wang, M., Feng, L. & Wang, L. 2011. Use of a DNA microarray for detection and identification of bacterial pathogens associated with fishery products. Applied and Environmental Microbiology 77(23): 8219-8225.

Entis, P. 2008. Malaysia’s National Dish-Food Poisoning. (atas talian) http://efoodalert.blogspot.com/2008/04/malaysias-national-dish-food-poisoning.html. (24 April 2008).

He, Y., Liu, H.L., Xian, M.J. & Li, Y.F. 2010. Detection and identification of Staphylococcus aureus in raw milk by hybridization to oligonucleotide microarray. African Journal of Biotechnology 9(15): 2284-2289.

Jin, S.Q., Yin, B.C. & Ye, B.C. 2009. Multiplexed bead-based mesofluidic system for detection of food-borne pathogenic bacteria. Applied and Environmental Microbiology 75(21): 6647-6654.

Leming, S. 2002. DNA Microarray (Genome Chip). DNA Microarrays - A technology that is reshaping molecular biology. (atas talian) http://www.gene-chips.com/. (7 Januari 2002).

Leonard, P., Hearty, S., Brennan, J., Dunne, L., Quinn, J., Chakraborty, T. & Kennedy, R.O. 2003. Advances in biosensors for detection of pathogens in food and water.  Enzyme and Microbial Technology 32(1): 3-13.

Lin, W.S., Cheng, C.M. & Van, K.T. 2010. A quantitative PCR assay for rapid detection of shigella species in fresh produce. Journal of Food Protection 73(2): 221-233.

Mohd, Z.M.N. 2010. Utusan Malaysia: Keracunan makanan meningkat. (atas talian) http://www.utusan.com.my/ utusan/info.asp?y=2010&dt=1015&pub=Utusan_ Malaysia&sec=Timur&pg=wt_02.htm. (15 Oktober 2010).

Mandal, P.K., Biswas, A.K., Choi, K. & Pal, U.K. 2011. Methods for rapid detection of foodborne pathogens: An overview. American Journal of Food Technology 6: 87-102.

Ratna Dewi Abdul Rahman, Norrakiah Abdullah Sani & Abdul Aziz Jemain. 2012. Penilaian kaedah pengiraan Escherichia coli dalam masakan ayam. Sains Malaysiana41(3): 325-331.

Vunrcrzant, C. & Pllustoesser, D.F. 1987. Compendium of Methods for Microbiological Examination of Food. Edisi ketiga. New York: American Public Health Association.

Wyatt, G.M., Lee, H.A. &. Morgan, M.R.A. 1992. Immunoassays for Food Poisoning Bacteria and Bacterial Toxins. Edisi pertama. London: Chapman & Hall. Muka surat 1-14.

Wang, X.W., Zhang, L., Jin, L.Q., Jin, M., Shen, Z.Q., An, S., Chao, F.H. & Li, J.W. 2007. Development and application of an oligonucleotide microarray for the detection of food-borne bacterial pathogens. (atas talian) http://www. springerlink. com/content/j31834h1546427n5/. (25 Februari 2007).

 

 

*Corresponding author; email: norra@ukm.my

 

 

 

previous