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All Journal Obat: Jurnal Riset Ilmu Farmasi dan Kesehatan Jurnal Inovatif Mahasiswa Manajemen
Syifa Aulia Rahmawati
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Economics, Econometrics & Finance Health Professions Nursing Public Health

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Pemanfaatan Rimpang Lengkuas Merah (Alpinia Purpurata K.Schum) sebagai Fungisida Tanaman Selada yang Menopang Inovasi Green Chemistry Wulan Ayu Ningsih; Intan Farhani; Kailla Qothrunnada Qurrota’ayun; Syifa Aulia Rahmawati; Iqbal Mustapha
OBAT: Jurnal Riset Ilmu Farmasi dan Kesehatan Vol. 3 No. 1 (2025): January: OBAT: Jurnal Riset Ilmu Farmasi dan Kesehatan
Publisher : Asosiasi Riset Ilmu Kesehatan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/obat.v3i1.913

Abstract

Indonesia is a country rich in useful biodiversity, such as red galangal (Alpinia purpurata K.Schum). The antibacterial and antifungal activity of the compounds isolated from the red galangal rhizome is the beginning of a new innovation to implement the concept on plants. The content of 1,8 sineol and eugenol in it makes red galangal rhizome can be used as a fungicide on lettuce plants. The widespread use of chemical-based pesticides can harm farmers and the environment with repeated exposure and over a long period of time. So biofungicide innovation is needed that can support the concept of Green Chemistry. The purpose of this study is to determine the effectiveness of red galangal rhizome extract as a fungicide on lettuce plants, as well as to analyze and determine under what conditions the fungicide from red galangal rhizome extract is optimal in eradicating Rhizoctonia Solani fungus on lettuce plants. This research was conducted experimentally using a completely randomized design (CRD) with 10 treatments. All data were tested for normality followed by homogeneity test and all data were found to be normally distributed and homogeneous. Data were analyzed with parametric statistical tests using one-way ANOVA tests and further tests using Tukey with an error rate of 10% to determine whether there was an effect of the treatment tested on the material. The results of this study indicate that red galangal rhizome extract is effective in eradicating Rhizoctonia Solani fungus on lettuce plants with an optimum concentration of 50%.
PENGARUH DEBT TO EQUITY RATIO DAN NET PROFIT MARGIN TERHADAP PRICE TO BOOK VALUE PADA PERUSAHAAN SUB SEKTOR TOURISM, RESTAURANT, DAN HOTEL YANG TERDAFTAR DI BEI PERIODE 2015-2019 Syifa Aulia Rahmawati; Simamora, Saur Costanius
Jurnal Inovatif Mahasiswa Manajemen Vol 1 No 3 (2021): Jurnal Inovatif Mahasiswa Manajemen
Publisher : Feb Universitas Dirgantara Marsekal Suryadarma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35968/5g13pk52

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh Debt to Equity Ratio dan Net Profit Margin terhadap Price to Book Value. Populasi dalam penelitian ini adalah perusahaan sub sektor tourism, restaurant, dan hotel yang terdaftar di BEI periode 2015-2019 yang berjumlah 39 perusahaan. Metode penentuan sampel menggunakan purposive sampling, sehingga sampel dalam penelitian ini sebanyak 12 perusahaan. Penelitian ini menggunakan data sekunder berupa laporan keuangan yang diperoleh dari www.idx.co.id. Metode analisa data adalah regresi linear berganda, dengan uji hipotesis parsial dan simultan. Hasil penelitian ini menunjukkan bahwa Debt to Equity Ratio berpengaruh secara signifikan terhadap Price to Book Value, sedangkan Net Profit Margin tidak berpengaruh secara signifikan terhadap Price to Book Value. Selain itu, dalam penelitian ini Debt to Equity Ratio dan Net Profit Margin memiliki pengaruh sebesar 23,2 % sedangkan sisanya sebesar 76,8 % dipengaruhi oleh faktor lain yang tidak dapat dijelaskan dalam penelitian ini.
Co-Authors Intan Farhani Iqbal Mustapha Kailla Qothrunnada Qurrota’ayun Saur Costanius Simamora, Saur Costanius Wulan Ayu Ningsih