Volume 18, Issue 121 (2022)                   FSCT 2022, 18(121): 289-299 | Back to browse issues page

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Khorsandi H, Piravi-Vanak Z, gharachorlo M. Study of physicochemical properties of butter produced by both traditional (fermentation) and industrial methods in different seasons. FSCT 2022; 18 (121) :289-299
URL: http://fsct.modares.ac.ir/article-7-55330-en.html
1- MSc. Graduated Student, Department of Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran.
2- Associate Professor, Food Technology and Agricultural Products Research Center, Standard Research Institute, Karaj, Iran. , zpiravi@gmail.com
3- Associate Professor, Department of Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Abstract:   (1837 Views)
The preparation of butter can be effective on its properties, in this study, the characteristics of butter prepared in traditional (using fermentation) and industrial (conventional) methods were investigated in both winter and summer seasons. For this purpose, butter samples were prepared from yogurt, cream in both summer, and winter from a farm in the Sarab region of East Azerbaijan. Fatty acid profile, plant sterols, peroxide, soap and iodine values, melting point and refractive index were measured. The Comparison of mean seasons showed that short-chain fatty acids (C4-C10) in summer was higher than winter and traditional butter had more short-chain fatty acids than industrial butter. In addition, the content of unsaturated fatty acids in winter and local butters were higher than summer and industrial butters. Comparison results of trans fatty acids showed that the most and the least amounts belonged to summer butter and winter local butters respectively. Local butter had the minimum ω3 / ω6 ratio and summer butter had the maximum conjugated linoleic acid (CLA). Non-fermented butter produced in summer had higher levels of phytosterols than fermented butter. The peroxide and soap values of traditional winter butter were higher than summer and the iodine value of winter-fermented butter was higher than non-fermented butter. Melting point and refractive index indices did not differ significantly in relation to the type of season and all results corresponded to the declared range of the national standard. According to the results there is a relative desirability of local butter from nutrition aspect in this research.
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Article Type: Original Research | Subject: Food Chemistry
Received: 2021/09/2 | Accepted: 2021/11/17 | Published: 2022/03/7

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