Physical and functional properties of roasted tamarind (Tamarindus indicus L.) kernel powder
1996
Sudarmanto S. (Universitas Gadjah Mada, Yogyakarta (Indonesia). Fakultas Teknologi Pertanian)
The objective of this experiment was to evaluate physical and functional properties of the roasted tamarind kernel powder (RTKP), compared to unroasted kernel powder (UTKP). Kernels were roasted at 150-160 degree C for 20-25 minutes, dehulled and ground to pass 48 mesh seive. Series of RTKP and UTKP were suspended in 80 degree C hot water, and their viscosities were measured at 30 degree C. Several TKP-sugar-water gels were prepared at pH=3.0, and the gel strength was measured undirectly by calculating the percentage of gel deformation. The results showed that there were no difference between the viscosities and gel strengths of RTKP and UTKP. Both RTKP and UTKP had good thickening power begining from 1.5 percent (w/v) powder content. A strong TKP-sugar-water gel having deformation less than 15 percent, could be prepared using either RTKP or UTKP (1.75-2.5 percent w/w) and sugar (60 percent) at pH 3
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