Assessment of physico-chemical properties of gum-arabic of commerce from Acacia senegal found in different localities of Ethiopia

• Autorzy: Yebeyen D. , Haile F.
• Języki publikacji: EN

Abstrakty

EN

A study was conducted to investigate the effect of growing location in the physico-chemical properties of gum arabic obtained from Acacia senegal. Authentic representative gum exudates samples were collected from Abederafi, Yabello, Awash and Filtu areas of Ethiopia. The experiment was conducted to determine Moisture content (MC), Ash content (Ash), pH, Relative Viscosity (RV), Nitrogen (N), Crude Protein (CP) and Mineral contents. Laboratory analyses were employed to determine the physico-chemical characteristics. The results were analyzed by using SAS Statistical Software. The analysis indicated that very high significant differences (p < 0.001) were seen on Ash, pH, RV, iron, calcium, and sodium contents of the gum arabic samples between the study sites. Furthermore, significant differences (p < 0.05) were indicated for N, CP, Cu, K contents. The results also showed MC, Mn and Mg contents have no significant difference among growing locations. According to our results, the percentage moisture content of the gum arabic samples were between 12.64 % and 13.41 %, while Ash percentage were between 0.32 % and 16.98 %. The mean pH values of the gum samples, obtained by employing different concentration of aqueous solutions also ranged between 4.4 and 4.97. In addition, the relative viscosity of the gum samples studied fall between 0.9 to 4.2 centipose, while Nitrogen and crude protein contents of the gum arabic samples from the study areas were from 0.313 % to 0.513 % and 1.943 % to 3.21 %, respectively. The major mineral element compositions of the gum arabic samples in descending order were Mg, Ca, Na, Cu, Fe, Mn and K. As compared to international standards and prior studies on gum arabic, the gum-arabic samples from the study sites have comparable physico-chemical characteristics.

• Wydawca: -
• Czasopismo: World News of Natural Sciences
• Rocznik: 2017
• Tom: 12
• Opis fizyczny: p.33-42,fig.,ref.

Twórcy

autor

Yebeyen D.

• Central Ethiopia Environment and Forest Research Center, Ethiopian Environment and Forest Research Institute, P.O. Box 30708, Addis Ababa, Ethiopia

autor

Haile F.

• Wood Technology Research Center, Ethiopian Environment and Forest Research Institute, P.O. Box 2322, Addis Ababa, Ethiopia

Bibliografia

• [1] T. Mengistu, D. Teketaye, H. Hulten, Y. Yonas, Journal of Arid Environments 60 (2005) 259-281
• [2] M. Argaw, D. Teketay, M. Olsson, Journal of Arid Environment 43 (1999) 411-435
• [3] D. S. Wilkie, L. Clark, R. Godoy, European Tropical Forest Network News, No 32/01 (2001) 32-34
• [4] M. Lemenih, T. Abebe, M. Olsson, Journal of Arid Environments 55 (2003) 465-482
• [5] M. Lemenih' D. Teketay, Ethiopian Journal of Science 26 (2003) 63-72
• [6] B. Chikamai, Conservation, Management and Utilization of Plant Gums, Resins and Essential Oils (1997).
• [7] Seif el Din, M. Zarroug, Non–Wood Forest Products 9 (1996).
• [8] D. Yebeyen, M. Lemenih, S. Feleke, Food Hydrocolloids 23 (2009) 175-180
• [9] Gashua, U. Ukekpe, I. Yusuf, International Journal of Advanced Research, 1 (2013) 228-232
• [10] O. Ibrahim, M. Osman, E. Hassan, Journal of Chemica Acta 1 (2013) 129-135
• [11] H. Greenfield, D. A. T. Southgate, Food composition data: production, management and use (2003).
• [12] AOAC, International official methods of analysis (2000).
• [13] FAO, Food and Nutrition Paper 52 (1995).
• [14] K. A. Karamalla, N. E. Siddig, M. E. Osman, Food Hydrocolloids, 12 (1998) 373-378
• [15] G. S. Mhinzi, H. D. J. Mrosso, Conservation, Management and Utilization of Plant Gums, Resins and Essential Oils (1997).
• [16] JECFA- FAO, Food and Nutrition Paper 52 (1995)
• [17] J. Lelon, I. Jumba, J. Keter, F. Oduor, African Journal of Plant Science, 7(6) (2013) 190-200
• [18] FAO, Food and Nutrition Paper 49 (1990) 23