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All Journal Equilibrium Journal of Chemical Engineering SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam
Rahmiah Sjafruddin
Politeknik Negeri Ujung Pandang
Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Materials Science & Nanotechnology

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The Use of Soxhlet Techniques in the Essential Oil Extraction from Anise Seeds (Pimpinella anisum) Arifah Sukasri; Wahyu Budi Utomo; Rahmiah Sjafruddin; Muhammad Nursam
Equilibrium Journal of Chemical Engineering Vol 7, No 1 (2023): Volume 7, No 1 July 2023
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v7i1.73410

Abstract

Abstract.  Anise seeds can be processed into essential oils by steam distillation and solvent extraction. This research aims to produce a high oil yield by determining the optimum conditions of extraction, extracting anise seeds according to optimum conditions, producing anise oil with good quality based on 90% alcohol solubility analysis, analyzing the acid number, and conducting GC-MS analysis. The Activity Method was carried out by determining the optimum conditions of extraction on the effect of the variation in the ratio between anise seed powder and petroleum ether. Furthermore, based on optimal conditions, extraction was carried out at a temperature of 60°C, 5 hours with 5 repetitions. The results of essential oils were analyzed including solubility analysis, oil acid number, and GC-MS. The optimal extraction conditions were obtained at the ratio of anise seeds and petroleum ether 1:12.5 with an average oil yield of 4.72%. The results of the analysis showed that anise oil had good quality based on the oil solubility in 90% alcohol with a 1:7 ratio. The acid number of anise seed oil was obtained at 1.14444. GC-MS analysis showed that anise seed oil contained estragol, anethole, limonene, fenchone, and anis ketone.Keywords:Anise seeds, essential oil, soxhlet, GC-MS
Potensi Pengolahan Air Limbah Industri Tahu sebagai Langkah Mendukung Industri Berkelanjutan. Rahmiah Sjafruddin; Muhammad Ardi; Muhammad Arsyad
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 13 No. 1 (2024): Volume 13 Nomor 1 (Maret 2024)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

The research aims to examine the potential of tofu industry wastewater (whey) to become a product of economic value for society. The research was carried out using a survey method to identify whey wastewater production in the tofu industry and continued with experiments on the characterization and processing of whey wastewater on a laboratory scale. Whey wastewater is processed using a honeycomb anaerobic biodigester with a capacity of 120 liters. The research stage involves making a starter from a mixture of cow dung, water, and whey wastewater (3:1:1) which is fermented for 21 days. After the starter shows that the growth of microorganisms (MO) is in the log, it is continued with one liter of whey wastewater every day. The results obtained show that whey wastewater contains protein 0,9482%,, carbohydrate0,4473% and fat0,2186% which is a substrate for MO. Anaerobic processing of whey wastewater using a honeycomb anaerobic biodigester produces biogas with a blue flame (methane gas > 45%). Then the Honeycomb biodigester slurry contains urea compounds which are fertilizer ingredients. Therefore, the potential for processing whey wastewater can produce renewable energy (biogas), liquid and solid organic fertilizer containing vitamin E and thiophospatoethyl aminohexylurea (N and P elements) as well as being a solution for handling environmental pollution, thereby creating a sustainable.
Co-Authors Arifah Sukasri Muhammad Ardi Muhammad Arsyad Muhammad Nursam Wahyu Budi Utomo