Optimization of Essential Oil Extraction of Beluntas (Pluchea Indica L.) Leaves by Using Solvent-Free Microwave Extraction

Abstract

Beluntas (Pluchea Indica L.) yang biasa digunakan sebagai astringent dan antipiretik memiliki potensi yang tinggi sebagai bahan baku produksi minyak atsiri. Tujuan dari penelitian ini adalah untuk mengoptimalkan solvent-free microwave extraction (SFME) dari daun beluntas menggunakan response surface metodology (RSM). Desain Box-Behnken dengan variasi waktu ekstraksi (60-120 menit), rasio bahan/labu distilat (0,06-0,1 g/ml), dan daya pemanas (150-450 Watt) digunakan untuk mengoptimalkan produksi minyak atsiri. Faktor rasio bahan/penyuling memiliki pengaruh signifikan paling tinggi terhadap rendemen minyak atsiri (P<0,05). Rendemen minyak atsiri meningkat seiring dengan meningkatnya daya pemanasan minyak dan waktu ekstraksi, dan sebaliknya. Di sisi lain, peningkatan rasio bahan/labu distilat memberikan dampak negatif terhadap rendemen minyak atsiri. Hasil minyak atsiri maksimum menggunakan metode SFME sebesar 0,2728 b/b% diperoleh untuk kondisi optimal waktu ekstraksi 90 menit, daya pemanasan 450 W, dan rasio bahan/labu distilat 0,06.Beluntas (Pluchea Indica L.) which commonly used as astringent and antipyretic has a high potential for the feedstock of essential oil production. The objective of this work is to optimize solvent-free microwave extraction (SFME) of Beluntas leaves by using response surface methodology (RSM). Box-Behnken Design with the variations of extraction time (60-120 min), feed/distiller ratio (0.06-0.1 g/ml), and heating power (150-450 W) was utilized to optimize essential oil yield. The feed/distiller ratio factor had the highest significant effect on the essential oil yield (P<0.05). Essential oil yield increased as the increase of oil heating power and time extraction, and vice versa. On the other hand, the increase in the feed/distiller ratio gave a negative impact on the essential oil yield. The maximum essential oil yield using SFME method of 0.2728 b/b% was obtained for the optimized condition of extraction time of 90 min, microwave heating power of 450 W, and feed/distiller ratio of 0.06.

Purification and separation of glucomannan from porang tuber flour (Amorphophallus muelleri) using microwave assisted extraction as an innovative gelatine substituent

“…Since the heating occurs volumetrically, microwave radiation expeditiously accelerates the reaction. While a 5 min heating duration yields an insufficient amount of glucomannan, a significant rise is observed within 10 min, indicating that microwave radiation enhances the driving power to break the cell membrane structure [ 26 ]. Nonetheless, it is noteworthy that extended extraction time may lead to the breakdown of glucomannan into its monomers, potentially compromising the quality of the final product [ 27 ].…”

PROFIL MUTU MINYAK ATSIRI KULIT LEMON (Citrus limon (L.) Burm.f. var. Eureka) BERDASARKAN PERBEDAAN WARNA KEMATANGAN DAN KADAR AIR

“…Menurut Amuda et al (2014) Bobot jenis juga mempengaruhi kualitas dari minyak atsiri. Bobot jenis yang terlalu tinggi akan menyebabkan terbentuknya jalur uap "rat holes", sehingga dapat meningkatkan resiko oksidasi pada minyak dan menurunkan kualitas minyak atsiri (Karima et al, 2022). Rentang nilai bobot jenis untuk minyak atsiri lemon varietas Eureka (American, Coastal type) pada standar ISO 855:2003 adalah 0,851-0,857 g/mL.…”

Content of Phenols and Flavonoids from Distillation of Beluntas (Pluchea indica l.) Leaves with Variables of Distillation Temperature and Pressure

“…Beluntas, or Pluchea indica L (P. indica), is a plant type that is easy to grow and produces throughout the year in Indonesia. It is often considered a wild plant that grows in open areas and is exposed to direct sunlight, such as on empty land (Achmad et al, 2015;Karima et al, 2022). P. indica is a shrub that belongs to the Asteraceae, commonly known as Indian fleabane (King-Jones, 2001;Pelu, 2017;Syaravina et al, 2018).…”