Minyak goreng merupakan kebutuhan pokok bagi kehidupan manusia. Alternatif pengolahan minyak goreng bekas adalah melalui proses adsorbsi dengan arang aktif kayu leucaena leucocephala. Penelitian ini bertujuan untuk memanfaatkan kayu leucaena leucocephala dan arang aktif dari kayu tersebut sebagai adsorben minyak goreng bekas pakai. Arang aktif dari kayu leucaena leucocephala dapat menurunkan kadar asam lemak bebas dan bilangan peroksida minyak goreng sebelum dan sesudah penggorengan secara berulang-ulang sehingga minyak jelantah dapat dipakai kembali. Untuk metode yang digunakan dalam penelitian yaitu metode eksperimen. Uji coba menggunakan arang aktif kayu leucaena leucocephala dengan minyak jelantah dan mencampurkannya. Komposisi pada arang aktif 75%, sedangkan pada minyak jelantah 25% dalam waktu satu setengah jam. Penelitian membuktikan bahwa arang aktif dapat memperbaiki kualitas minyak jelantah dengan menurunkan kadar asam lemak sehingga menjadikan warna dari minyak jelantah menjadi lebih jernih
The profitability ratio is used to measure the effectiveness of management of the output of returns obtained by sales and investment to know the company's ability to generate profits during a certain period and carry out the duties of its operations. This study aims to determine the value of Net Profit Margin (NPM), Gross Profit Margin (GPM), Return On Assets (ROA), and Return On Equity (ROE) during the pandemic and after the covid-19 pandemic. This study uses a descriptive method and the data collection technique in this research is a sampling technique. Net Profit Margin (NPM) tends to increase, this is because the components of net profit and income also increase. Gross Profit Margin (GPM) tends to increase. This is because the components of gross profit and income have also increased. Return on Assets (ROA) tends to increase, this is because the components of net income and total assets also increase. Return On Equity (ROE) in 2015 to 2016 has increased, this is because the components of net income and equity also increased
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