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This article was aimed to compare soap character with the difference concentration of bidara leaf extraction. Bidara leaf soap was prepared by soft saponification using NaOH which is involved with bidara leaf. Soap analysis has been investigated by colour, cleaning power, foam power dan pH. Based on the result, the soap with 2% concentration of bidara leaf had the highest cleaning power with soft texture, high soap power and appropriate pH for skin care. From FTIR observation and manual soap test was predicted that bidara leaf not only act as catalyst that increase saponification rate but also act as soap hidrophilicity enhancer.

Synthesis and Properties of Soaps from Bidara leaf (Ziziphus mauritania) Via Soft Saponification