The Effect of Homogenization Pressure and Stages on the Amounts of Lactic and Acetic Acids of Probiotic Yoghurt
Applied Food Biotechnology,
Vol. 2 No. 1 (2015),
,
Page 25-29
https://doi.org/10.22037/afb.v2i1.7209
Abstract
Nowadays the use of probiotic products especially yogurt, due to having wonderful and health properties, has become popular in the world. In this study, the effect of homogenization pressure (100, 150 and 200 bars) and stage (single and two) on the amount of lactic and acetic acids was investigated. Yoghurts were manufactured from low-fat milk treated using high pressure homogenization at 100,150 and 200 bar and at 60°C. The amount of lactic and acetic acids was determined after the days 1, 7, 14 and 21 of storage at 4ºC. The experiments were set up using a completely randomized design. With the increase of pressure and stage of homogenization, the amount of both acids was increased (p<0.01). The greatest amount of lactic and acetic acids during the storage period was observed in the sample homogenized at a pressure of 200 bars and two stages.
- Probiotic yogurt
- Homogenization
- Pressure
- Homogenization Stages
- Organic acids.
How to Cite
References
Shah NP. Functional foods from probiotic bacteria and prebiotics. Food Tech. 2001; 55: 46-53.
Tammime AY, Saarela M, Korslund J, Sondergaard A, Mistry V, Shah NP. Production and maintenance of viability probiotic bacteria microorganisms in dairy products. Oxford, UK: Blackwell Publishing. 2005; 39-97.
Korbekandi H, Mortazavian AM, Iravani S. Stability and technology of probiotic in fermented milks. In: Shah N (ed). Probiotic and prebiotic foods: Technology, stability and benefits to the human health. Nova Science Publishing Ltd, USA, 2011; 131-169.
Mitsuoka, T. The human gastrointestinal tract. The Lactic Acid Bacteria in Health and Disease. B. J. B. Wood, ed. Elsevier, Amsterdam, the Netherlands 1992; 69-113.
Shah NP. Probiotic bacteria: Selective enumeration and survival in dairy foods. J Dairy Sci. 2000; 83: 894-907.
Institute of Standards and Industrial Research of Iran, probiotic yogurt- specifications. ISIRI no 11325. Karaj: ISIRI; 2009 [in Persian].
Ouwehand A, Kirjavainen C, Pirkka V, Shortt C, and Salminen S. Probiotics: Mechanisms and established effects. Int Dairy J. 1999; 9: 43-52.
Vinderola CG, Bailo N, and Reinheimer JA. Survival of probiotic microflora in Argentinian yogurts during refrigerated storage. Food Res Int. 2000; 33:97-102.
Mortazavian AM, Sohrabvandi S. Probiotic bacteria and food probiotic products; Based on dairy probiotic products. Tehran: Eta Publication 2006 [In Persian].
Ramesh C, Chandan J, Kilara A, editors. Dairy ingredients for food processing. Blackwell Publishing Ltd. 2011; 1831-1838.
Tamime AY, editor. Milk processing and quality management. Society of Dairy Technology Book Series. Wiley, UK. 2009; 300-344.
Britz T, Robinson R, editors. Advanced dairy science and technology. Wiley, New York, NY2008. p.312.
Lucey JA. Cultured dairy products: an overview of their gelation and texture properties. Int J Dairy Tech. 2004; 57: 77-84.
Tamime AY, Robinson RK. Yoghurt science and technology. Woodhead Publishing Ltd., Cambridge, UK. 2007; 2041-2051.
Serra M, Trujillo AJ, Guamis B, Ferragut V. Evaluation of physical properties during storage of set and stirred yoghurts made from ultra-high pressure homogenization-treated milk. Food Hydrocolloid. 2009a; 23: 82-91.
Capra ML, Quiberoni A, Reinheimer JA. Thermal and chemical resistance of Lactobacillus casei and Lactobacillus paracasei bacteriophages. Lett Appl Microbiol. 2004; 38: 499-504.
Serra M, Antonio J, Trujillo T, Buenventura G, Victoria F. Flavor profiles and survival of starter cultures of yoghurt produced from high-pressure homogenized milk. Int Dairy J. 2009b; 19: 100-106.
Dave RI. Viability of yoghurt and probiotic bacteria in yoghurts made from commercial starter cultures. Int Dairy J. 1997; 7: 31-41.
Adhikari K, Grun IU, Mustapha A, Fernando LN. Changes in the profile of organic acids in plain set and stirred yoghurts during manufacture and refrigerated storage. J Food Quality. 2002; 25: 435-451.
Gueimonde M, Alonso L, Delgado T, Bada-Gancedo JC, Reyes-Gavilan C. Quality of yoghurt made from refrigerated and CO2-treated milk. Food Res Int. 2003; 36: 43-48.
Mortazavian AM, Khosrokhavar R, Rastgar H. Effects of dry matter standardization order on biochemical and microbiological characteristics of Doogh (Iranian fermented milk drink). Ital J Food Sci. 2010; 22: 1-8.
Farhadi S, Khosravi-Darani K, Mashayekh M, Mortazavian AM, Shahraz F. Effect of incubation temperature and inoculation ratio of starter culture on propionic acid production in dairy beverage fermented with propionibacterium. Iran J Nutr Sci Food Technol. 2012; 7: 41-50.
Ogawa M, Shimizu K, Nomoto K, Tanaka R. The source of Lactobacillus bacteria. Int J Food Microbiol. 2001; 74: 167-172.
Heidari S, Mortazavian AM, Ehsani MR, Mohammadifar MA, Ezzatpanah H, Sohrabvandi S. Biochemical, microbiological and sensory characteristics of probiotic yogurt containing various prebiotic or fiber compounds. Ital J Food Sci. 2011 [in press].
Patrignani F, Iucci L, Lanciotti R, Vallicelli M, Mathara M, Holzapfel, et al. Effect of high-pressure homogenization, nonfat milk solids, and milk fat on the technological performance of a functional strain for the production of Probiotic fermented milk. Am Dairy Sci Assoc. 2007; 14: 28-32.
- Abstract Viewed: 1113 times
- PDF Downloaded: 1905 times