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All Journal Jurnal Ilmu Pertanian Indonesia El-Barka: Journal of Islamic Economics and Business Jurnal Agristan Jurnal Riset Agama Agridev Journal : Agribusiness Digitalization & Community Development
Rahmawati, Rahmi
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Religion Agriculture, Biological Sciences & Forestry Humanities Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Industrial & Manufacturing Engineering Public Health Social Sciences Veterinary

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Optimisasi Tekanan dan Nisbah Refluks pada Pemurnian ∆-Guaiena Minyak Nilam (Pogostemon cablin) secara Distilasi Fraksional Rahmi Rahmawati; Sarifah Nurjanah; Efri Mardawati
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.614

Abstract

Patchouli oil is one of Indonesia's important essential oils as an export commodity. Δ-Guaiene is one of the terpenes in the oil, which is shown to have antimicrobial activity against some fungi and bacteria. Thus, the production of δ-guaiene needs to be optimized. This study aims to determine the appropriate pressure and reflux ratio for the fractional distillation process that isolates the highest δ-guaiene content. The experiment used the response surface method. The pressure of the fractional distillation process and reflux ratio were: 1;10; 20 mmHg; and 5:1; 20:1; 35:1. The temperature ranged from 270‒272°C. Various pressure did not give different yields, except at a pressure of 1 mmHg that resulted in 4% yield and δ-guaiene content of 20.46%; both conditions were optimum. The δ-guaiene was characterized for the density, refractive index, distillate formation rate, distillation time, residual mass, and electrical energy requirements, which were 0.9519, 1.5027, 4 mL/min, 1 minute, 6.31 g, and 6.0477 kW/h, respectively. The lower the reflux ratio, the faster the distillation process; the faster the processing time, the lower the energy requirement; and the higher the ratio of reflux, the purer the percentage of the δ-guaiene. The optimum process was reached as the reflux ratio was lower, where the yield and δ-guaiene content were the highest, and the processing time was faster. Keywords: δ-guaiene, fractional distillation, patchouli oil, reflux pressure, RSM
Integrasi Teknologi Pengolahan Hasil Pertanian dan Manajemen Sumber Daya Manusia: Strategi Pengembangan CV. Essentialle Harum Alami Rahmawati, Rahmi; Indrianingsih, Rohayati Suci; Hidayat, Tita Nurmalinasari; Sopiawadi, Mutqi
AgriDev Vol. 3 No. 2 (2025)
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/Agridev.v3i2.11448.2025

Abstract

Integrasi teknologi pengolahan hasil pertanian dan manajemen sumber daya manusia (MSDM) sangat penting untuk meningkatkan daya saing usaha kecil dan menengah (UKM). Penelitian ini berfokus pada CV. Essentialle Harum Alami, sebuah perusahaan yang bergerak di bidang produk minyak atsiri. Metode penelitian yang digunakan adalah studi kasus dengan pendekatan deskriptif kuantitatif, dan data dianalisis menggunakan teknik IFE/EFE, SWOT, dan AHP. Penelitian mengidentifikasi langkah strategis untuk meningkatkan efisiensi produksi, kualitas produk, dan daya saing pasar. Hasil penelitian menunjukkan bahwa peningkatan fasilitas dan infrastruktur produksi untuk memenuhi standar ekspor, adopsi teknologi produksi dan pengemasan skala komersial yang tepat, serta pengembangan program pelatihan karyawan merupakan langkah kunci untuk pertumbuhan berkelanjutan. Selain itu, penguatan kerja sama dengan pemangku kepentingan dan perluasan promosi akan membantu meningkatkan jangkauan pasar dan membangun citra merek yang kuat. Studi ini menekankan bahwa penyelarasan strategi tersebut dengan tren global yang mendukung produk ramah lingkungan memberikan manfaat jangka panjang bagi perusahaan dan komunitasnya. Integrasi teknologi dan MSDM menjadi faktor utama dalam pengembangan agroindustri yang kompetitif dan berkelanjutan.
Macroeconomic Variables and Profitability in the Indonesian Islamic Banking Industry Al Arif, Mohammad Nur Rianto; Rahmawati, Rahmi
El Barka Vol. 4 No. 1 (2021)
Publisher : El-Barka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21154/elbarka.v4i1.2778

Abstract

Profitability level is one of performance indicator in banking industry, including the Islamic banking industry. The purpose of this study is to analyse the short-run and long-run impact of macroeconomics variables to profitability in the Indonesian Islamic banking industry. The method that used in this paper is vector error correction models (VECM). The variables that used in this paper are industrial production index, inflation, exchange rate, the Bank Indonesia’s rate, and stock exchange composite index. The result shows that in the long-run, all of the macroeconomics variables affect significantly in profitability level. In the short-run, all macroeconomics variables do not  impact the profitability. This result implies that the macroeconomics variable had a time-lag to affect the profitability in the Indonesian Islamic banking industry. Salah satu indikator kinerja dalam industri perbankan termasuk industri perbankan syariah adalah tingkat profitabilitas. Tujuan dari penelitian ini ialah untuk menganalisis pengaruh variabel makroekonomi terhadap profitabilitas di industri perbankan syariah, baik dalam jangka pendek maupun jangka panjang. Metode yang dipergunakan dalam artikel ini ialah model vektor koreksi kesalahan. Variabel yang dipergunakan ialah indeks produksi industri, inflasi, nilai tukar, tingkat bunga Bank Indonesia, dan indeks harga saham gabungan. Hasil penelitian menunjukkan bahwa seluruh variabel makroekonomi berpengaruh dalam jangka panjang terhadap tingkat profitabilitas. Sedangkan, dalam jangka pendek seluruh variabel makroekonomi tidak berpengaruh terhadap tingkat profitabiltas. Hasil ini memberikan implikasi bahwavariabel makroekonomi memiliki jeda waktu untuk memengaruhi tingkat profitabilitas pada industri perbankan syariahdi Indonesia.
MINAT PEMBELIAN SAYUR MELALUI E-COMMERCE DI KABUPATEN PURWAKARTA Indrianingsih, Rohayati Suci; Hidayat, Tita Nurmalinasari; Rahmawati, Rahmi
Jurnal Agristan Vol 7, No 1 (2025): Jurnal Agristan
Publisher : Jurusan Agribisnis, Fakultas Pertanian, Universitas Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37058/agristan.v7i1.14460

Abstract

E-commerce menjadi tren yang memberikan kemudahan bagi konsumen dalam berbelanja termasuk belanja produk pertanian seperti sayuran. Meskipun sudah tersedia kemudahan dengan adanya teknologi dalam kegiatan jual beli berupa e-commerce, masih banyak konsumen yang belum memanfaatkannya dalam memenuhi kebutuhannya akan sayuran. Penelitian ini bertujuan untuk menganalisis minat pembelian konsumen terhadap sayur melalui e-commerce serta faktor yang mempengaruhinya. Penelitian dilaksanakan di Kabupaten Purwakarta bulan Desember 2024 – Januari 2025. Pendekatan kuantitatif digunakan dalam penelitian ini dengan menggunakan metode survei. Pengambilan sampel ditarik menggunakan metode insidental dengan ukuran sampel 100. Data yang diperoleh dianalisis menggunakan analisis deskriptif kuantitatif dan analisis regresi linier berganda. Hasil penelitian menunjukkan bahwa minat pembelian konsumen terhadap sayur melalui e-commerce termasuk pada kategori sedang. Persepsi harga dan persepsi kualitas memberikan pengaruh signifikan terhadap minat pembelian konsumen baik secara simultan maupun secara parsial.
Peran Qanaah dalam Mengatasi Masalah Ekonomi Rumah Tangga Rahmawati, Rahmi; Mulyana, Mulyana; Adnan, Adnan
Jurnal Riset Agama Vol. 2 No. 2 (2022): August
Publisher : Fakultas Ushuluddin UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jra.v2i2.16981

Abstract

This research aims to discuss the role of qanaah attitude in dealing with household economic problems based on the perspective of the idrisiyyah order's prosperous family development institution. This research uses qualitative research methods where the resulting source comes from observations and interviews and literature related to research. The results of this study give the understanding that qanaah is a form of gratitude for the efforts that have been made to pick up sustenance. In addition, qanaah is also interpreted as an attitude of acceptance towards all destiny and decrees from Allah Swt., and still accompanied by still trying and trying to get what we need. The Prosperous Family Development Institute is a container in which there are coaching programs as a form of service to pilgrims who want or are married.  LPKS provides guidance on how to become a human being who has good morals and provides tips on how to be a good household. As for the conclusion that can be drawn, the role of qanaah in dealing with economic problems in the household is very important, because with qanaah humans will always feel enough with what they have received so that it will minimize conflicts that occur in the household due to the absence of demands from both sides. This research recommends the importance of understanding and applying qanaah attitudes in family life in order to create a harmonious family.
Co-Authors Adnan Adnan Efri Mardawati Mohammad Nur Rianto Al Arif Mulyana Mulyana Mutqi Sopiawadi Rohayati Suci Indrianingsih Sarifah Nurjanah Tita Nurmalinasari Hidayat