Sucrose-based surfactants (Phase I)

Abstract

Rosemarie S. Gumera and Blesilda S. Gregorio

The project deals with the production of sucrose-based surfactants from seven (7) types of oil or fatty acids (castor, linseed, soya bean, corn, tallow, oleic acid and hydrogenated palm oil). The process involves saponification for twenty (20) minutes at 105-110 oC and esterfication for two (2) and eight (8) hours at 90-100 oC using two catalyst as potassium and sodium carbonates.

Results revealed that ester level of products obtained from the different oil fatty acids varies depending on the type/amount of oil or fatty acids and catalyst used and esterification time. Only products from castor oil, palm oil and tallow were analyzed for ester content as corn, linseed, soya bean oil yielded a heterogeneous product with excess fatty acid and oleic acid that produced an irritating fume upon sponification thus the decision to discontinue the test run. For palm oil samples treated separately with the catalyst and esterified for two (2) hours, a higher ester value ranging from 161 to 177 mg. KOH per gram sample is attained. Tallow samples esterifies for (2) hours with two catalysts combined, on the other hand, gave a higher ester value (139 and 109 mg KOH per gram sample). Contrary, castor oil samples esterified for eight (8) hours treated with the combined catalyst yielded a higher value.

http://www.sra.gov.ph/abstract/

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