PENGARUH VARIASI BOBOT ADSORBEN TERHADAP PENINGKATAN MUTU MINYAK AKAR WANGI (Vetiver oil) MENGGUNAKAN KAOLIN

ARLINA PASHA AISYA, - (2025) PENGARUH VARIASI BOBOT ADSORBEN TERHADAP PENINGKATAN MUTU MINYAK AKAR WANGI (Vetiver oil) MENGGUNAKAN KAOLIN. Skripsi thesis, Sekolah Tinggi Farmasi Indonesia.

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Abstract

Minyak akar wangi (Vetiveria zizanioides) merupakan salah satu komoditas ekspor Indonesia yang bernilai tinggi. Namun, kualitas minyak yang dihasilkan petani lokal masih sering tidak memenuhi standar mutu ekspor, khususnya terkait warna, kadar vetiverol, dan karakteristik lainnya yang belum sesuai standar SNI. Penelitian ini bertujuan untuk mengevaluasi pengaruh variasi bobot adsorben kaolin (30 gram, 60 gram, dan 90 gram) terhadap peningkatan mutu minyak akar wangi melalui metode adsorpsi. Proses dilakukan dengan menambahkan kaolin teraktivasi ke dalam campuran minyak dan pelarut n-heksana, diikuti proses agitasi, pemisahan, dan evaporasi pelarut. Hasil menunjukkan bahwa bobot kaolin 30 gram (MAWK30) memberikan perbaikan paling signifikan pada parameter visual (warna coklat kemerahan) dan fisikokimia seperti bobot jenis (0,980 g/cm³), bilangan ester setelah asetilasi (130,4325), dan kadar vetiverol total (30,40%), meskipun belum memenuhi batas >50% sesuai SNI. Bobot kaolin yang lebih besar (60 gram dan 90 gram) justru menyebabkan penurunan kadar vetiverol akibat over-adsorpsi. Berdasarkan hasil ini, kaolin dapat digunakan sebagai adsorben dalam tahap awal pemurnian vetiver oil, dengan bobot optimum 30 gram. Namun, untuk memenuhi standar ekspor sepenuhnya, diperlukan kombinasi metode pemurnian lanjutan. ----- Vetiver oil (Vetiveria zizanioides) is one of Indonesia's high-value export commodities. However, the quality of oil produced by local farmers often does not meet export quality standards, especially regarding color, vetiverol content, and other characteristics that do not meet SNI standards. This study aims to evaluate the effect of variations in kaolin adsorbent weight (30 grams, 60 grams, and 90 grams) on improving the quality of vetiver oil through the adsorption method. The process is carried out by adding activated kaolin to a mixture of oil and n-hexane solvent, followed by agitation, separation, and solvent evaporation. The results showed that the 30 gram kaolin weight (MAW-K30) provided the most significant improvement in visual parameters (reddish brown color) and physicochemical parameters such as specific gravity (0.980 g/cm³), ester number after acetylation (130.4325), and total vetiverol content (30.40%), although it did not meet the limit of >50% according to SNI. Higher kaolin weights (60 grams and 90 grams) actually caused a decrease in vetiver levels due to over-adsorption. Based on these results, kaolin can be used as an adsorbent in the initial stages of vetiver oil purification, with an optimum weight of 30 grams. However, to fully meet export standards, a combination of advanced purification methods is required.

Item Type:	Thesis (Skripsi)
Uncontrolled Keywords:	Minyak akar wangi, kaolin, adsorpsi, vetiverol, mutu minyak atsiri. ----- Vetiver oil, kaolin, adsorption, vetiverol, essential oil quality
Subjects:	Q Science > QD Chemistry R Medicine > R Medicine (General)
Divisions:	Program Studi S1 Farmasi
Depositing User:	pustakawan - -
Date Deposited:	13 Aug 2025 03:33
Last Modified:	28 Aug 2025 02:00
URI:	http://repository.stfi.ac.id/id/eprint/2695

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