Conclusion
The results of this study indicated that substitution of texturized soy
protein with Aloe vera in low meat beef burger has a significant effect
on the quality of the samples. Although burgers containing 1% Aloe
vera were similar to the control samples in most respects, addition of
3% and 5% Aloe vera improved most quality characteristics of the burgers.
Addition of 5% Aloe vera reduced cooking loss, cooking shrinkage,
fat absorption, and lipid oxidation while water holding capacity, moisture
retention, and textural properties also improved. Samples with
these properties have a good quality for production of low meat beef
burgers; however, the bitter taste of Aloe vera is a big obstacle for
addition of 5% Aloe vera to beef burgers. Based on the results, it may
be claimed that burgers containing 3% Aloe vera enjoy not only a good
quality but also a satisfactory consumers' acceptability.