Study on the feasibility of functional synbiotic yoghurt producted from camel milk and oat β-glucan

Document Type : Research Paper


1 Department of Food Science & Engineering, Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj, Iran.

2 Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran


Regarding the unique properties of camel milk, it can be used as a nutraceutical product. In this study, the effect of different variables on the quality characteristics of synbiotic yoghurt made from camel milk was studied. Independent variables (all in three levels) in this study were: β-glucan (prebiotic agent)  0 - 1 - 2%, fat content 0 - 2.5 - 5%, the amount of probiotic bacteria 0.5 - 1 – 1.5% and storage time 0 - 7 -14 days. The least amount of syneresis (0%) was obtained when the highest percentage of β-glucan (3%) and fat content (5%) were used. Least pH (pH=4.06) was observed in non-fat yoghurt (0% fat) when it was inoculated with an increased amount of probiotic bacteria (1.5%), β-glucan (2%) and time (fourteen day). The optimum viability of probiotic bacteria in yoghurt (107 cfu/mL) was obtained by increasing β-glucan and reducing fat contents at early days of storage. The highest viscosity was obtained at 7th days of storage when the highest content of β-glucan (3%) and fat (2.5%) were used. According to test panel analyses its overall acceptance and taste became better when the concentration of β-glucan and storage time increased.


Main Subjects


Agrawal, R. P., Beniwal, R., Kochar, D. K., Tuteja, F. C., Ghorui, S. K., Sahani, M. S. & Sharma, S. (2005). Camel Milk as an Adjunct to Insulin Therapy Improves Long-Term Glycemic Control and Reduction in Doses of Insulin in Patients with Type-1 Diabetes: A 1 Year Randomized Controlled Trial. Diabetes Research and Clinical Practice, 68, 176-177.
Agrawal, R. P., Budania, S., Sharma, P., Gupta, R. & Kochar, D. K. (2007). Zero Prevalence of Diabetes in Camel Milk Consuming Raica Community of North-West Rajasthan, India. Diabetes Research and Clinical Practice, 76, 290-296.
Ayadi, M., Hammadi, M., Khorchani, T., Barmat, A., Atigui, M. & Caja, G. (2009). Effect of Milking Interval and Cisternal Udder Evaluation in Tunisian Maghrebi Dairy Dromedaries (Camelus dromedarius). Journal of Dairy Science, 92, 1452-1459.
Chao Xu,, Junli Lv, Y. Martin Lo, Steve W. Cuic,d, Xinzhong Hua,e & Mingtao Fana, (2013). Effects of oat β-glucan on endurance exercise and its anti-fatigue properties in trained rats. Carbohydrate Polymers, 92, 1159– 1165.
Clare, D. A. & Swaisgood, H. E. (2000). Bioactive Milk Peptides: A Prospectus. Journal of Dairy Science, 83, 1187-1195.
Faraji, N., Alizade-Khaled-Abadi, M., Khosroshahi-Asl, A. & Faraji, S. (2012 ) Optimization of production process Low-fat probiotic yogurt with using combined design. Iranian Food Science and Technology, 8(2), 121-136. (In Farsi)
Fiat, A. M., Migliore-Samour, D., Jollès, P., Drouet, L., Sollier, C. B. D. & Caen, J. (1993). Biologically Active Peptides from Milk Proteins with Emphasis on Two Examples Concerning Antithrombotic and Immunomodulating Activities. Journal of Dairy Science, 76, 301-310.
Guggisberg, D., Cuthbert-Steven, J., Piccinali, P., tikofer, U. Bu. and Eberhard, P. (2009). Rheological, microstructural and sensory characterization of low-fat and whole milk set yoghurt as influenced by inulin addition. International Dairy Journal, 19, 107–115.
Haddadin, M. S. Y., Gammoh, S. I. & Robinson, R. K. (2008). Seasonal Variation in the Chemical Composition of Camel Milk in Jordan. Journal of Dairy Research, 75, 8-12.
Hashim, I. B., Khalil, A. H. & Habib, H. (2009). Quality and acceptability of a set-type yogurt made from camel milk. Journal Dairy Science, 92, 857–862.
Khaskheli, M., Arian, M. A., Chaudhry, S., Soomro, A. H. & Qureshi, T. A. (2005). Physico- Chemical Quality of Camel Milk. Journal of Agriculture and Social Sciences, 2, 164-166.
Konuspayeva, G., Faye, B. & Loiseau, G. (2009). The Composition of Camel Milk: A Meta-Analysis of the Literature Data. Journal of Food Composition and Analysis, 22, 95-101.
Mayo, B., Aleksandrzak-Piekarczyk, T., Fernández, M., Kowalczyk, M., Álvarez-Martín, P. & Bardowski, J. (2010). Updates in the metabolism of lactic acid bacteria. In: Mozzi, F., Raya, R.R., Vignolo, G.M. (Eds.), Biotechnology of Lactic Acid Bacteria: Novel Applications. Wiley-Blackwell, Ames, Iowa, USA, 3–33.
Meisel, H. (2004). Multifunctional Peptides Encrypted in Milk Proteins. BioFactors, 21, 55-61.
Mishra S and Mishra H (2012) Effect of synbiotic interaction of fructooligosaccharide and probiotics on the acidification profile, textural and rheological characteristics of fermented soy milk. Food and Bioprocess Technology 5(8) 2941-2350.
Moura, F. A., Pereira, J. M., Silva, D. O., Zavareze, E. R., Moreira, A. S., Helbig, E. & Dias, A. R. G. (2011). Effects of oxidative treatment on the physicochemical, rheological and functional properties of oat β-glucan. Food Chemistry, 128, 982–987.
Niasari-Naslaji, A., Arabha, H., Atakpour, A., Salami, M. & Moosavi-Movahedi, A. A. (2012). Camel Milk and its Bioactive Molecules in Medical Treatments. Science Cultivation, 2(1). 20-24. (In Farsi)
Sahana, N., Yasarb, K. & Hayaloglu, A. A. (2008). Physical, chemical and flavour quality of non-fat yogurt as affected by a β-glucan hydrocolloidal composite during storage. Food Hydrocolloids, 22, 1291–1297.
Salami, M., Moosavi-Movahedi, A. A., Moosavi-Movahedi, F., Ehsani, M. R., Yousefi, R., Farhadi, M., Niasari-Naslaji, A., Saboury, A. A., Chobert, J. M. & Haertle, T. (2011). Biological activity of camel milk casein following enzymatic digestion. Journal of Dairy Research, 1- 8.
Sawaya, W. N., Kalil, J. K., Al-Shalhat, A. & Al-Mohammad, H. (1984). Chemical Composition and Nutritional Quality of Camel Milk. Journal of Food Science, 49, 744-747.
Shamsia, S. M. (2009). Nutritional and Therapeutic Properties of Camel and Human Milks. International Journal of Genetics and Molecular Biology, 1, 52-58.
Shori, A. B., & Baba, A. S. (2011). Cinnamomum verum improved the functional properties of bioyogurts made from camel and cow milks. Journal of the Saudi Society of Agricultural Sciences, 10, 101–107.
Souza, R. P., Perego, P., Oliveira, M. N. & Converti, A. (2011). Effect of inulin as prebiotic and synbiotic interactions between probiotics to improve fermented milk firmness. Journal of Food Engineering, 107, 36–40.
Stahl, T., Sallmann, H. P., Duehlmeier, R. & Wernery,U. (2006). Selected Vitamins and Fatty Acid Patterns in Dromedary Milk and Colostrums. Journal of Camel Practice and Research, 13, 53-57.
Vasiljevic T, Kealy T and Mishra V K (2007) Effects of β-Glucan Addition to a Probiotic Containing Yogurt. Journal of food science
          72 C405- C411.