Effect of added bovine casein and whey protein on the quality of camel and bovine milk yoghurts

Bhawna Sobti, Hajer A.A.Al Teneiji, Afaf Kamal-Eldin

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    The aim of this study is to evaluate the effect of fortification of camel milk (CM) and bovine milk (BM) with 1-4% of bovine casein (CN) and/or whey protein (WP) on the quality of yoghurts after 12 hours of fermentation. Response surface methodology was used to design the experiment. Yoghurts were evaluated for pH, acidity, hardness and rheology. The results revealed that addition of WP and CN significantly improved the hardness (p<0.000), and the rheological properties; storage modulus (G', p<0.005), and loss modulus (G", p<0.005), viscosity (p<0.005) and tan δ (G''/G', p<0.05) of CM yoghurts. Both types of yoghurts attained highest viscosity, G' and G" values at highest level of WP (4%) and intermediate level of CN (2.5%) while increased CN ratio showed negative effects on yoghurts rheology. It can be concluded that the amount of total proteins as well as altering CN-to-WP ratio are important for the formation of strong gel network and the production of good quality set yoghurts.

    Original languageEnglish
    Pages (from-to)804-811
    Number of pages8
    JournalEmirates Journal of Food and Agriculture
    Volume31
    Issue number10
    DOIs
    Publication statusPublished - Oct 1 2019

    Keywords

    • Bovine milk
    • Camel milk
    • Rheology
    • Texture
    • Yoghurt

    ASJC Scopus subject areas

    • Food Science
    • Applied Microbiology and Biotechnology
    • Animal Science and Zoology
    • Agronomy and Crop Science

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