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IJSTR >> Volume 5 - Issue 12, December 2016 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Sensory Evaluation And Analysis Of Physico-Chemical Parameters Of Some Plain Set Yoghurt Brands Sold In Matara Municipal Area Of Sri Lanka

[Full Text]

 

AUTHOR(S)

K.K.G.U Hemamali, S.M. Amarathunge

 

KEYWORDS

chemical parameters, consumer acceptance, physical parameter, plain set yoghurt, sensory evaluation, yoghurt brands, yoghurt quality.

 

ABSTRACT

Production, selling, consumption and concern of plain set yoghurt show incitement in the last few time periods in Sri Lanka. New plain set yoghurt brands are coming to the Sri Lankan market very quickly too. The aim of this study was an attempt to do sensory evaluation and compare the physical and chemical parameters of some selected plain set yoghurt brands sold in Matara municipal area of Sri Lanka. Five different brands of plain set yoghurt samples were selected on the basis of preliminary survey done. Then all the selected plain set yoghurt samples were test for organoleptic characters such as color, aroma, appearance, thickness, taste, sourness, sweetness and over all acceptability. After that all the selected plain set yoghurt samples were analyzed with their physical and chemical parameters such as syneresis effect, pH, titratable acidity, total protein content. By doing analysis of sensory evaluation, the brand 12 was the least acceptable product while brand 15 was the most acceptable product by thirty untrained panelists. It also revealed that the thickness with appearance and taste had significant influence (p<0.05) on over all acceptability of the plain set yoghurt brand. According to the results obtained, all physico-chemical parameters significantly differ (p<0.05) between the plain set yoghurt brands too. Hence, plain set yoghurt manufacturers must give attention on improvement of thickness, taste and appearance for better consumer acceptance and for better production. Overall plain set yoghurt quality assessment needs good care on quality control during processing.

 

REFERENCES

[1] A.Y. Tamine, and H.C. Deeth, “Yoghurt,nutritive and therapeutic aspects”. J.food prot. Vol.44, no.3, pp.78-86. 1981.

[2] A.Y. Tamine, and R.K. Robinson, “Yoghurt: Science and Technology”. 3rd Ed. Cambridge, Woodhead Publishing Limited, pp. 808. 2007.

[3] A. Tariq, Y. Shahid, and M. Tariq, “Quality Evaluation of Market Yoghurt /Dahi”. Pakistan Journal of Nutrition. Vol.1, pp.226-230. 2002.

[4] E. Renner, “Nutritional aspects of fermented milk products”. Cultured Dairy Products Journal. Vol.21, no.3, pp.6–14. 1986. Domain site: http://food5450groupb.wikispaces.com.

[5] F. Alvarez, M. Arguello, M. Cabero, F.A. Riera, R. Alvarez, J.R. Iglesias, and J. Granda, “Fermentation of concentrated skim-milk and Effects of different protein/lactose ratios obtained by ultrafiltration-diafiltration”. J. Sci. Food Agric. Vol.5, pp.310-316. 1998.

[6] F. Shahzad, I. Ahmad, M. Gulzar, M. Yaqub, and T. Zhoor, “Quality assessment of yoghurt produces at large (industrial) and small scale”. The Journal of Animal and Plant Sciences. Vol.23, pp.58-61. 2011.

[7] J.A. Kurmann, and J.L. Rasic, “Yoghurt, Scientific Grounds, Technology, Manufacture and Preparations”. Copenhagen: Technical Diary Publishing House. 1978.

[8] K.K.G.U. Hemamali, S.M. Amarathunga, and V.S. Jayamanne, “Physico-Chemical And Microbiological Quality Of Some Consumer Preferred Plain Set Yoghurts Sold In Matara Municipal Area Of Sri Lanka”, international journal of scientific & technology research. Vol.5, no.1, pp.62-65. 2016.

[9] K.H. Steinkraus, “Classification of fermented foods: worldwide review of household fermentation techniques”. Food Control 8: pp.311-317. 1997.

[10] K.M. Shahani, and R.C. Chandan, “Nutritional and healthful aspects of cultured and culture-containing dairy foods”. J. Dairy Sci. vol.62 no.2, pp.85-94. 1979.

[11] K.M. Shahani, S.M. Kaup, and M.A. Amer, “Bioavailability of calcium in yogurt”. Milchwissenschaft. Vol.42, pp.513–16.1987.

[12] O. Adolfsson, S.N. Meydani, and R.M. Russell, “Yoghurt and Gut Function”. American Journal of Clinical Nutrition. Vol.80, pp.245-256. 2004.

[13] Official Methods of Analysis of AOAC International, 18th edition, AOAC International. Gaithersburg, Maryland 20877-2417, USA.