TY - JOUR
T1 - Steroid-saponins from fenugreek seeds
T2 - Extraction, purification and surface properties
AU - Benichou, A.
AU - Aserin, A.
AU - Garti, N.
PY - 1999
Y1 - 1999
N2 - Two techniques for extraction and purification were excersized in order to obtain a purified saponins extract from several sources (fenugreek, soybean, locust bean and sesame). The results indicate that fenugreek steroid saponins extract has the best surface properties and reduces the surface tension to 33.3 mN/m and the tetradecane-water interfacial tension from 44 mN/m to 7.5 mN/m. The HLB value was evaluated and found to be 18. Three different types of oil (n-tetradecane, soybean oil, tricaprylin) were emulsified with a 6 wt% aqueous solution of saponins to give an average droplet size of 0.7μm (yet stable after month). An effective synergism is seen when these emulsions were prepared with sucrose fatty acid esters as co-surfactant. Furthermore, the foaming power was evaluated.
AB - Two techniques for extraction and purification were excersized in order to obtain a purified saponins extract from several sources (fenugreek, soybean, locust bean and sesame). The results indicate that fenugreek steroid saponins extract has the best surface properties and reduces the surface tension to 33.3 mN/m and the tetradecane-water interfacial tension from 44 mN/m to 7.5 mN/m. The HLB value was evaluated and found to be 18. Three different types of oil (n-tetradecane, soybean oil, tricaprylin) were emulsified with a 6 wt% aqueous solution of saponins to give an average droplet size of 0.7μm (yet stable after month). An effective synergism is seen when these emulsions were prepared with sucrose fatty acid esters as co-surfactant. Furthermore, the foaming power was evaluated.
KW - Adsorption
KW - Emulsification foam
KW - Fenugreek
KW - Saponins
KW - Surface properties
UR - http://www.scopus.com/inward/record.url?scp=0032641405&partnerID=8YFLogxK
U2 - 10.1080/01932699908943809
DO - 10.1080/01932699908943809
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AN - SCOPUS:0032641405
SN - 0193-2691
VL - 20
SP - 581
EP - 605
JO - Journal of Dispersion Science and Technology
JF - Journal of Dispersion Science and Technology
IS - 1-2
ER -