Production of camel milk yoghurt: physicochemical and microbiological quality and consumer acceptability

Obakeng Galeboe ,
Obakeng Galeboe

Department of Food Science and Technology, University of Botswana , Gaborone , Botswana

Eyassu Seifu ,
Eyassu Seifu
Contact Eyassu Seifu

Department of Food Science and Technology, University of Botswana , Gaborone , Botswana

Bonno Sekwati-Monang
Bonno Sekwati-Monang

Department of Food Science and Technology, University of Botswana , Gaborone , Botswana

Published: 18.10.2018.

Volume 7, Issue 2 (2018)

pp. 51-63;

https://doi.org/10.7455/ijfs.v7i2.473

Abstract

The objectives of this study were to make yoghurt from camel milk and determine its physicochemical, microbiological and sensory qualities. The quality of camel milk yoghurt was compared with cow milk yoghurt and all parameters were analyzed following standard procedures. Yoghurt of acceptable consistency was made from camel milk using 1.2% gelatin, 5% bovine skim milk powder, 1.5 ml/L of calcium chloride, 40 ml/L of maple strawberry syrup and 6% yoghurt culture (YF-L811) and by incubating the milk at 42°C for 18 h. The average values for moisture, ash, syneresis, pH, titratable acidity and total solids of camel milk yoghurt were 83.4%, 1.13%, 58%, 4.37, 1.255% lactic acid and 16.7%, respectively. The corresponding values for cow milk yoghurt were 80.6%, 0.71%, 56%, 4.67, 0.865% lactic acid and 19.5%, respectively. The titratable acidity of camel milk yoghurt was significantly higher (P<0.05) than cow milk yoghurt; however, no significant difference was observed between the two yoghurt types for the other parameters. Coliforms were not detected in both yoghurt types. The sensory analysis showed that cow milk yoghurt was more preferred by the panellists than camel milk yoghurt. Production of yoghurt from camel milk using the same procedure as for cow milk yoghurt proved to be difficult.  Further research is called for to improve the acceptability of camel milk yoghurt using locally available and acceptable flavouring agents. Research needs to be conducted to optimize the operating parameters and standardize the production procedures of camel milk yoghurt in the future.

Keywords

References

1.
Agrawal R, Beniwal R, Kochar D, Tuteja F, Ghorui S, Sahani M, et al. Camel milk as an adjunct to insulin therapy improves longterm 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. 2005;(2):176–7.
2.
Agrawal R, Beniwal R, Sharma S, Kochar D, Tuteja F, Ghorui S, et al. Effect of raw camel milk in type 1 diabetic patients: 1 year randomised study. Journal Of Camel Practice And Research. 2005;(1):27–31.
3.
Haj A, Al Kanhal O, H. Compositional, technological and nutritional aspects of dromedary camel milk. International Dairy. Journal. 2010;(12):811–21.
4.
Official methods of analysis. 1995;(16).
5.
Ijfs October. Quality aspects of camel milk yoghurt 61. 2018;51–63.
6.
Attia H, Kherouatou N, Dhouib A. Dromedary milk lactic acid fermentation: microbiological and rheological characteristics. Journal Of Industrial Microbiology and Biotechnology. 2001;(5):263–70.
7.
Barnes D, Harper S, Bodyfelt F, Mcdaniel M. Prediction of consumer acceptability of yogurt by sensory and analytical measures of sweetness and sourness. Journal Of Dairy Science. 1991;(11):78566–70.
8.
Bashir A. Effect of gum arabic on enzymatic coagulation of camel milk (Doctoral dissertation. 2009;
9.
Bhagiel I, Musatafa E, Tabidi M, Ahmed M. Comparison between the physiochemical attributes of yogurt processed from camel milk and that processed from cow milk and the effect of storage. World Journal of Pharmacy and Pharmaceutical Sciences. 2015;(8):1530–40.
10.
Bibiana I, Joseph A, Julius S. Physicochemical, microbiological and sensory evaluation of yoghurt sold in makurdi metropolis. African Journal of Food Science and Technology. 2014;(6):129–35.
11.
Breulmann M, Böer B, Wernery U, Wernery R, El Shaer H, Alhadrami G.
12.
Norton J. The camel from tradition to modern times. a proposal towards combating desertification via the establishment of camel farms based on fodder production from indigenous plants and halophytes. 2017;
13.
Celik S, Bakirci I. Some properties of yoghurt produced by adding mulberry pekmez (concentrated juice). International Journal Of Dairy Technology. 2003;(1):26–9.
14.
Chandan R, A, K. Manufacturing + Yogurt + and + Fermented + Milks , +2nd + Edition. 2013;(2):9781119967088.
15.
Claeys W, Verraes C, Cardoen S, De Block J, Huyghebaert A, Raes K, et al.
16.
Herman L. Consumption of raw or heated milk from different species: an evaluation of the nutritional and potential health benefits. Food Control. 2014;188–201.
17.
Eissa E, Mohamed A, Yagoub A, Babiker E. Livestock Research for Rural Development. 2010;
18.
Eissa E, Yagoub A, Babiker E, Ahmed I. Physicochemical, microbiological and sensory characteristics of yoghurt produced from camel milk during storage. Electronic Journal of Environmental. 2011;(6):2305–13.
19.
Farah Z. St Gallen: Swiss Centre for Development Cooperation in Technology and Management. 1996;
20.
Farah Z. Encyclopedia of dairy sciences. 2011;(2):512–7.
21.
Faye B, Bonnet P. 3rd Conference of International Society of Camelid Research and Development. 2012;2–15.
22.
Gaddour A, Najari S, Abdennebi M. Yoghurt produced from goat milk. Journal of Animal and Veterinary Advances. 2013;(24):1700–3.
23.
Habtegebriel H, Admassu S. Optimization of the processing conditions of stirred yoghurt from camel milk using linear programming technique. Food Science and Quality Management. 2016;51–63.
24.
Haddad M, Al-Qudah M, Abu-Romman S, Obeidat M, El-Qudah J. Development of traditional jordanian low sodium dairy products. Journal of Agricultural Science. 2017;(1):223–30.
25.
Hashim I, Khalil A, Habib H. Quality and acceptability of a settype yogurt made from camel milk. Journal Of Dairy Science. 2009;(3):857–62.
26.
Hassan R, El Zubeir I, Babiker S. Effect of pasteurization of raw milk and storage temperature on the chemical composition of fermented camel milk. International Journal of Dairy Science. 2007;(2):166–71.
27.
Ibrahem S, Zubeir I. Processing, composition and sensory characteristic of yoghurt made from camel milk and camel-sheep milk mixtures. Small Ruminant Research. 2016;109–12.
28.
Ibrahim A, Khalifa S. The effects of various stabilizers on physiochemical properties of camel’s milk yoghurt. Journal of American Science. 2015;(1):15–24.
29.
Kavas N. Yoghurt production from camel (camelus dramedarius) milk fortified with samphire molasses and different colloids. Mljekarstvo. 2016;(1):34–47.
30.
Kgaudi K. Milk production potential and major browse species consumed by dromedary camels (camelus dromedarius) in tsabong area, southern kgalagadi district (Doctoral dissertation. 2014;
31.
Khan H, Athar I, Aslam M. Evaluation of cheese prepared by processing camel milk. Pakistan Journal of Zoology. 2004;(4):323–6.
32.
Kiros E, Seifu E, Bultosa G, Solomon W. Effect of carrot juice and stabilizer on the physicochemical and microbiological properties of yoghurt. LWT-Food Science And Technology. 2016;191–6.
33.
Ledenbach L, Marshall R. Compendium of the microbiological spoilage of foods and beverages. 2009;41–6.
34.
Mehaia M. Fresh soft white cheese (domiati-type) from camel milk -composition, yield, and sensory evaluation. Journal Of Dairy Science. 1993;(10):2845–55.
35.
Mostert J, Jooste P. Dairy microbiology handbook. 2002;(3):655–736.
36.
Mullaicharam A. A review on medicinal properties of Camel milk. World Journal of Pharmaceutical Sciences. 2014;(3):237–42.
37.
Al-Numair K, Chandramohan G, Alsaif M. Influence of camel milk on glycoprotein components in streptozotocindiabetic rats. Journal Of Camel Practice And Research. 2011;(1):15–20.
38.
Al-Otaibi M, El-Demerdash H. Nutritive value and characterization properties of fermented camel milk fortified with some date palm products chemical, bacteriological and sensory properties. International Journal of Nutrition and Food Science. 2013;(4):174–80.
39.
Ramet J. Rome: Food and Agriculture Organization of the United Nations. Animal Production and Health Paper. 2001;(113).
40.
Ijfs October. 2018;51–63.
41.
Richardson H. Standard methods for the examination of dairy products. 1985;(6).
42.
Washington D.
43.
Sahan N, Yasar K, Hayaloglu A. Physical, chemical and flavour quality of non-fat yogurt as affected by a betaglucan hydrocolloidal composite during storage. Food Hydrocolloids. 2008;(7):1291–7.
44.
Al-Saleh A, Metwalli A, Ismail E. Physicochemical properties of probiotic frozen yoghurt made from camel milk. International Journal Of Dairy Technology. 2011;(4):557–62.
45.
Sharma C, Singh C. Therapeutic value of camel milk -a review. Advanced Journal of Pharmacie and Life Science Research. 2014;(3):7–13.
46.
Shori A. Camel milk as a potential therapy for controlling diabetes and its complications: a review of in vivo studies. Journal Of Food And Drug Analysis. 2015;(4):609–18.
47.
Tamime A. Fermented milks. 2006;
48.
Tamime A, Robinson R. Yoghurt science and technology. 2000;(2).
49.
Yagil R. Camels and camel milk. FAO Animal Production and Health Paper 26. 1982;
50.
Al-Zoreky N, Al-Otaibi M. Suitability of camel milk for making yogurt. Food Science And Biotechnology. 2015;(2):51–63.

Citation

Copyright

Article metrics

Google scholar: See link

The statements, opinions and data contained in the journal are solely those of the individual authors and contributors and not of the publisher and the editor(s). We stay neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Most read articles

Indexed by