Volume 15, Issue 83 (2018)                   FSCT 2018, 15(83): 387-398 | Back to browse issues page

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Abotalebi Kohne Shahri R, Ilkhanipour M. Viability and efficacy of Lactobacillus casei LAFTI-L26 as adjunct starter in red Dutch cheese. FSCT 2018; 15 (83) :387-398
URL: http://fsct.modares.ac.ir/article-7-17274-en.html
1- Graduated MSc, Food Science and Technology, Faculty of Agriculture, Saba Institute of Higher Education, Urmia
2- Retired Assistant Professor, Department of Biology, Urmia University, Urmia
Abstract:   (3775 Views)
The aim of this study was to investigate the survival of Lactobacillus casei LAFTI-L26 in Dutch red cheese. For this purpose, the effect of thermal treatments (pasteurization and non-pasteurization) in different concentrations of brine (0%, 2.5%, and 5%) and the ripening time (1,30 and 60 days) on lactobacillus casei survival and physicochemical properties of cheese including; pH, dry matter, fat percentage, salt percentage and acidity were studied. The results from the beginning of production to the end of the 60-day period showed that Increasing the pH of cheeses increased significantly (p<0.05). During non-pasteurization, the fat content of pasteurized cheeses increased significantly (p<0.05), and in pasteurized cheeses it was much more than pasteurized cheeses. Total microbial load increased significantly during storage (p<0.05). The acidity of the cheeses decreased significantly during storage (p<0.05), and with increasing the duration of salting water in pasteurized cheeses significantly increased (p<0.05). The salt percentage of samples was significantly reduced by applying the thermal process (p<0.05). By increasing the storage time, the number of Lactobacillus casei bacteria increased significantly in all samples (p<0.05), with increasing percentage of Lactobacillus casei salt in pasteurized cheese increased significantly (p <0.05), and pasteurization Increased the viability of Lactobacillus casei. In general, Dutch red cheese produced in Salmas has the ability to carry Lactobacillus casei (LAFTI-L26 DSL).
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Article Type: Original paper | Subject: Food quality control
Received: 2018/02/13 | Accepted: 2019/01/15 | Published: 2019/01/15

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