Chemical Composition and Functional Properties of Egyptian Taro (Colocasia esculenta) Mucilage | ||||
| Al-Azhar Journal of Agricultural Research | ||||
| Article 19, Volume 47, Issue 1, June 2022, Page 185-1901 PDF (514.35 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ajar.2022.266499 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
A. M. Basiony  1; M. B. Atta2; E. I. Abd-Elazim1; A. S. Mohamed1
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| 1Food science and technology department, faculty of Agriculture, AL-Azhar University, Cairo, Egypt. | ||||
| 2Food science and technology department, Faculty of Agriculture, Tanta University, Egypt. | ||||
| Abstract | ||||
| The chemical composition and functional properties of mucilage extracted from Egyptian taro were studied. The mucilage's yield of Egyptian taro corms was 4.163%. The chemical compositions of the taro mucilage are 6.48, 6.78, 0.54, 6.01, 80.19 and 2.45 % for moisture, crude protein, ether extract, ash, total carbohydrates and crude fiber, respectively. The major amino acids are asparagine (14.9 gm/ 100 gm) glutamine (12.2 gm/ 100 gm), while cysteine (0.2gm/ 100 gm) was the minor amino acid. The major monosaccharides are glucose (22.51 µg/ gm) and fructose (20.11 µg/ gm), while the minor monosaccharide is arabinose (0.85 µg/ gm). The values of pH, solubility, swelling power, emulsion activity, emulsion stability, water absorption capacity and oil absorption capacity of taro mucilage are 6.06, 17.44%, 10.94%, 75.73 %, 93.90%, 4.5 ml/ mg and 1.50 ml/g, respectively. The high emulation activity and stability as well as water absorption capacity of the mucilage are desirable feature as safe emulsifier for natural food additives. | ||||
| Keywords | ||||
| Chemical composition; functional properties; taro mucilage; Amino acids; Monosaccharides | ||||
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