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Mahfud Mahfud
Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry

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Journal : ASEAN Journal of Chemical Engineering

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The Effect of Temperature on Extraction of Swietenia Mahagoni by Ultrasound–assisted Extraction (UAE) Method Ike Dayi Febriana; Heri Septya Kusuma; Selfina Galan; Mahfud Mahfud
ASEAN Journal of Chemical Engineering Vol 16, No 1 (2016)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1147.917 KB) | DOI: 10.22146/ajche.49673

Abstract

Azo dyes are synthetic organic dyes which have azo group (-N=N-) as chromophore. Waste of azo dyes have not been able to overcome completely so that requires solutions of natural dye. Raw material of natural dye can be obtained from Swietenia mahagoni. Natural dye can be extracted by ultrasound-assisted extraction (UAE) method. The pupose of this research is to study the factor that influence UAE. Observed factor is influence of extraction temperature to the yield of natural dye. This research was conducted using ratio of material to solvent of 0.05 g/L with extraction time at 40 minute. Extraction temperature was observed at 30, 40, and 50oC. Ultrasonic wave that used for this research at 40 kHz. The result is increasing temperature will be allow the increasing trend of yield. The result indicate that there is about 9.2748% improvement in the yield of extract due to increasing extraction temperature from 30oC to 50oC
Preliminary Study: Kinetics of Oil Extraction from Sandalwood by Microwave-assisted Hydrodistillation Heri Septya Kusuma; Mahfud Mahfud
ASEAN Journal of Chemical Engineering Vol 15, No 2 (2015)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (803.467 KB) | DOI: 10.22146/ajche.49687

Abstract

Sandalwood and its oil, is one of the oldest known perfume materials and has a long history (more than 4000 years) of use as mentioned in Sanskrit manuscripts. Sandalwood oil plays an important role as an export commodity in many countries and its widely used in the food, perfumery and pharmaceuticals industries. The aim of this study is to know and verify the kinetics and mechanism of microwave-assisted hydrodistillation of sandalwood based on a second-order model. In this study, microwave-assisted hydrodistillation is used to extract essential oils from sandalwood. The extraction was carried out in ten extraction cycles of 15 min to 2.5 hours. The initial extraction rate, the extraction capacity and the second-order extraction rate constant were calculated using the model. Kinetics of oil extraction from sandalwood by microwave-assisted hydrodistillation proved that the extraction process was based on the second-order extraction model as the experimentally done in three different steps. The initial extraction rate, h, was 0.0232 g L-1 min-1, the extraction capacity, CS, was 0.6015 g L-1, the second-order extraction rate constant, k, was 0.0642 L g-1 min-1 and coefficient of determination, R2, was 0.9597.
Co-Authors Ike Dayi Febriana Kusuma, Heri Septya Selfina Galan