Nowadays, the rheological and industrial importance of hydrocolloids is completely obvious. For many years, yield stress has been discussed as one of the most important parameters in the rheological behavior of hydrocolloids. Among the direct and indirect methods used in yield stress measurement, only the indirect ones have been noticed and applied in the hydrocolloid rheology. In this study, the yield stress of some food hydrocolloids (Palmate-tuber Salep, Balangu (Lallemantia royleana) and Locust bean gum) was evaluated using two direct techniques, namely inclined plane and cylindrical penetrometer. The applicability of these techniques in hydrocolloid rheology has been discussed in this paper, and the results were also obtained by flow curve extrapolation and compared with the previous ones.

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