Follow
International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2020) [Effective from January 1, 2020]For more details click here

Login as a Reviewer

Indexed in



National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

See Guidelines to Authors
Current Issues

Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(7): 2114-2121
DOI: https://doi.org/10.20546/ijcmas.2020.907.246


Development and Validation of Formulae for the Estimation of Solids-not- Fat and Total Solids Content in Cow and Buffalo Milk
V. M. Arjuna1, N. Laxmana Naik2, Akshaykumar3*, B. K. Ramesh3, Shivanand2, Sharanabasava2 and K. N. Krishna4
1Hatsun Agro Products, Chennai, India
2National Dairy Research Institute, SRS, Bengaluru, India
3ICAR-Krishi Vigyan Kendra, Bidar, India
4Dharwad Co operative Milk Union, Dharwad, India
*Corresponding author
Abstract:

Milk testing for quality assurance is an essential component of any milk processing industry. Pricing of milk is mainly based on the percentage level of fat and solids-not-fat (SNF) contents. Different types of lactometers and different formulae are in use for estimating SNF and TS percentage. Gravimetric method is the standard and accurate method for estimation of SNF. However, this method is time consuming and demands a better analytical skill. Therefore, this study was undertaken to develop a suitable formulae and validation of the same. In this study total 339 milk samples (154 individual and pooled milk samples from Deoni and HF cow from Institute Livestock Research Centre, 135 individual and pooled buffalo milk samples from Yelahanka and Chikkaballapura, 25 commercial samples from Experimental dairy Plant and 25 Market samples) were collected and analyzed. Twenty-two lactometers (ISI and Zeal), 25 milk butyrometer, 8 milk pipettes and 9 thermometers were calibrated and used in the study. Correlation between fat and SNF for cow and buffalo milk was established by using SPSS-16.0 version statistical tool. Regression equation for prediction of coefficient (Fat and CLR in the formula) and constant was used. In, ISI, S1, New 27°C, S2 S3 and New 29°C formula 74.07, 75.77, 80.24, 9.33, 0 and 77.33 total percentage of samples are within 0.2% error in SNF for buffalo milk and in case of cow milk 88.98, 73.72, 91.52, 35.48, 5.64 and 91.93 total percentage of samples were within 0.2% error in SNF. Based on these observations 4 formulae were developed, for buffalo milk F1=0.25CLR+0.25Fat+0.38 at 27°C and F2= 0.25CLR+0.25Fat+0.57 at 29°C. For cow milk, F3=0.25CLR+0.25Fat+0.39 at 27°C and F4=0.25CLR+0.25Fat+0.56 at 29°C. Validation result for these formulae shows that 80.24, 77.33, 91.52 and 91.93 percentage of samples were within the acceptable range. The developed formula helps in estimating the SNF and TS contents in milk nearer to the gravimetric value.


Keywords: Lactometer, Fat, Solids not fat and Corrected Lactometer reading
Download this article as Download

How to cite this article:

Arjuna, V. M., N. Laxmana Naik, Akshaykumar, B. K. Ramesh, Shivanand, Sharanabasava and Krishna, K. N. 2020. Development and Validation of Formulae for the Estimation of Solids-not- Fat and Total Solids Content in Cow and Buffalo Milk.Int.J.Curr.Microbiol.App.Sci. 9(7): 2114-2121. doi: https://doi.org/10.20546/ijcmas.2020.907.246