Rheological properties of probiotic non-fat yogurt containing Lactobacillus reuteri: Effects of inulin addition, inoculum level and fermentation temperature

Authors

  • Faramarz Khodaiyan Bioprocessing and Biodetection Laboratory, Department of Food Science and Engineering, University of Tehran, Karaj 31587-77871, Iran
  • Mona Sadat Bitaraf Bioprocessing and Biodetection Laboratory, Department of Food Science and Engineering, University of Tehran, Karaj 31587-77871, Iran
  • Seyed Saeid Hosseini Bioprocessing and Biodetection Laboratory, Department of Food Science and Engineering, University of Tehran, Karaj 31587-77871, Iran
Abstract:

The simultaneous effects of inulin addition (0-4%w/w), probiotic inoculum level (1-3%v/v) and fermentation temperature (37-45°C) on the dynamic rheological properties of probiotic non-fat yogurt were studied using response surface methodology. Frequency sweep tests were performed to measure structure strength and type of structure. Linear viscoelastic range in term of strain (LVE), structure strength (G¢ at LVE), yield stress (τy) and flow point (τf) of samples were measured doing strain sweep test. Results showed that Inulin concentration had the greatest influence on G' and τf, followed by fermentation temperature. A positive correlation between b value and level of syneresis was observed.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Effect of adding inulin on microbial and physicochemical properties of low fat probiotic yogurt

Currently, due to their beneficial effects, there is interest in adding prebiotics to food products. Thisstudy investigated the effect of the addition of inulin (1% and 2%) on microbial and physico-chemicalproperties of probiotic low fat yogurt manufactured with Lactobacillus acidophilus. Six experimentalpreparations of yogurt were produced. Homogenized, standardized and pasteurized low fat mil...

full text

effect of adding inulin on microbial and physicochemical properties of low fat probiotic yogurt

currently, due to their beneficial effects, there is interest in adding prebiotics to food products. thisstudy investigated the effect of the addition of inulin (1% and 2%) on microbial and physico-chemicalproperties of probiotic low fat yogurt manufactured with lactobacillus acidophilus. six experimentalpreparations of yogurt were produced. homogenized, standardized and pasteurized low fat mil...

full text

impact of prangos ferulacea on some microbial, physicochemical and sensory properties of probiotic low fat yogurt containing lactobacillus casei

background: the prangos ferulacea (pf)–yogurt is a traditional food in iran. this study investigated the effects of pf on the microbial, physicochemical and sensory properties of probiotic yoghurt. methods: pasteurized low fat milk was heated up to 85°c, cooled to 40°c, and then mixed with conventional and lactobacillus casei starter cultures incubated at 37°c until ph decreased to 4.6. then, t...

full text

Investigating the Effects of Inulin as a Carbohydrate Based Fat Replacer on Rheological and Sensory Properties of UHT Cream

The problems associated with the consumption of high-fat foods have increased the requirement to use new formulations based on fat replacer. Inulin has textural properties and it’s a prebiotic source. Due to the cream’s wide usage in dairy industry, it is tried to make cream with textural and organoleptic characteristics that contains the least amount of calories. Meanwhile, Table cream (30%) w...

full text

Investigating the Effects of Inulin as a Carbohydrate Based Fat Replacer on Rheological and Sensory Properties of UHT Cream

The problems associated with the consumption of high-fat foods have increased the requirement to use new formulations based on fat replacer. Inulin has textural properties and it’s a prebiotic source. Due to the cream’s wide usage in dairy industry, it is tried to make cream with textural and organoleptic characteristics that contains the least amount of calories. Meanwhile, Table cream (30%) w...

full text

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}


Journal title

volume 1  issue 2

pages  109- 116

publication date 2018-12-01

By following a journal you will be notified via email when a new issue of this journal is published.

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023