Abstract

Candra Irawan¹, Suci Indryati¹, Endang Sri Lestari², Arinzani Hidaningrum³ and Supriyono¹

DOI : http://dx.doi.org/10.13005/ojc/340142

Aurantiol or hydroxycitronellal-methyl anthranilate schiff base was a common compound added in the manufacture of fragrance. The addition of aurantiol to the fragrance, made the fragrance more stable and the resulting odor can last longer. Generally aurantiol was prepared by reflux technique with stirring and addition of acid catalyst, which then was continued by recrystallization to purify the resulted aurantiol. This method was ineffective and required a high cost, so it needed a more effective and efficient manufacturing techniques, namely simple condensation technique. This technique consisted of two steps: the synthesis step, and the characterization. The synthesis step was began by weighing of the raw material were hydroxycitronellal and methyl anthranilate. The synthesis of aurantiol was carried out by heating at 90±5°C, and with variation of synthesis time for 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, and 4 hours. The characterization included chemical composition, organoleptic test, refractive index, density, specific gravity determination. Organoleptic tests included odor and color test. The measurement of refractive index was performed by refractometer, the chemical composition was performed by gas chromatography-mass spectrometer, while density and specific gravity were performed by pycnometer. From the experimental results, we got the optimum synthesis time that was between 30 minutes to 1 hour, with aurantiol products of 77.57%. In this optimum condition, the resulted aurantiol had odor test results: floral balsamic, sweet, orange blossom; color test: light yellow to greenish yellow; and refractive index, density, specific gravity were 1,543, 1.052 g/mL, 1,054 respectively. Based on the experimental results, it can be concluded that the synthesis of aurantiol with simple condensation technique has been successfully done, with the highest aurantiol yield of 77.57% with optimum synthesis time of 30 minutes to 1 hour. Therefore, this optimum condition can be used as a reference for the synthesis of aurantiol on an industrial scale.

Schiff Base; Aurantiol; Hydroxycitronellal; Methyl Anthranilate; Fragrance

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