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PEMBUATAN BIOETANOL DARI KULIT PISANG RAJA (MUSA SAPIENTUM) MENGGUNAKAN METODE HIDROLISIS ASAM DAN FERMENTASI Rosdiana Moeksin; Melly; Septyana
Jurnal Teknik Kimia Vol 21 No 2 (2015): Jurnal Teknik Kimia
Publisher : Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya

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Abstract

Bioetanol sebagai bahan bakar alternatif dibuat dengan proses fermentasi karbohidrat dengan bantuanmikroorganisme. Peneltian ini, sumber karbohidrat yang digunakan kulit pisang raja (Musa sapientum).Kandungan karbohidrat pada kulit pisang raja 59,00 mg/g. Karbohidrat (pati) dari kulit pisang rajadikonversi menjadi glukosa dengan metode hidrolisis asam menggunakan H2SO4 0,5 M. Hidrolisisdilakukan selama 2 jam pada suhu 100oC, dengan bantuan bakteri Saccharomyces cerevisiaepada pH 4.Penelitian ini variasi beratSaccharomyces cerevisiae3,6; 5,4; dan 7,2 gram, dengan waktu fermentasi 72,120, 168 dan 216 jam. Bioetanol dengan waktu fermentasi 168 jam dan berat ragi 3,6 gramdiperoleh32,7%. Hasil analisa menggunakan Gas Chromatography(GC), kadar bioetanol tertinggi sebesar43,5%.
ANALISIS STRATEGI BISNIS MIE AYAM BANGKA “LIONG LIE” Balya, Sabrinadiza; Melly; Farida, Vinaliani; Darmanto, Muji
Jurnal Ekonomi Trisakti Vol. 4 No. 2 (2024): Oktober
Publisher : Lembaga Penerbit Fakultas EKonomi dan Bisnis 

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/v4i2.19309

Abstract

Tujuan dari pelaksanaan penelitian adalah demi mengetahui strategi yang tepat bagi Warung Mie Ayam Bangka “Liong Lie” dalam menghadapi berbagai perubahan di Indonesia sebagai akibat dari terjadinya pandemi COVID-19, berdasarkan analisis SWOT dari warung tersebut. Penelitian dan pengolahan dilakukan menggunakan metode deskriptif kualitatif; dimana dilakukan analisis SWOT untuk kemudian diolah dengan berbagai alat matrix perumusan strategi. Sumber data yang digunakan merupakan primer dan sekunder, dengan data terkait didapatkan melalui wawancara informan kunci, observasi, dan tinjauan pustaka. Setelah data diolah, hasil dari metode  matriks QSPM menunjukan bahwa Warung Mie Ayam Bangka “Liong Lie” perlu melakukan optimalisasi strategi pemasaran digital untuk memaksimalkan penghasilan dan meningkatkan daya saing.
Hubungan Mencuci Tangan dan Perawatan Kuku dengan Kejadian Helmintiasis pada Siswa/i Sekolah Dasar Lestari, Kustiasih; Melly; Elisanov, Virpy; Agritubella, Syafrisar Meri
JURNAL KESEHATAN PRIMER Vol 7 No 2 (2022): JKP (Jurnal Kesehatan Primer)
Publisher : Poltekkes Kemenkes Kupang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31965/jkp.v7i2.814

Abstract

Introductions:    Helminthiasis is a worm infection that often attacks children to adults. A quarter of the world’s population suffers from Soil-Transmitted Helminthes (STH). Various problems arising from worm infection include changes in appetite, nausea, vomiting, and weight loss. In children, it can inhibit growth and development. The purpose was to identify handwashing behaviour, nail hygiene and incidence of Helminthiasis in Elementary School students. Methods: This is quantitative research with a cross-sectional study to link hand washing and nail hygiene with worms in students with 106 respondents. Examination of faecal preparations was carried out at the Thamrin Laboratory. Result: The results obtained were 14 people (13,2%) with hand washing behaviour in the poor category, 14 people (13,2%) with nail hygiene in the poor category, and 14 people (13,2%) have worm infection. Based on bivariate analysis, p-value=0.000 (5%), Conclusion: There is a relationship between hand washing behaviour and nail hygiene with the incidence of worms in students of Elementary School.
THE EFFECT OF PROFITABILITY, LIQUIDITY, FIRM SIZE AND ASSET STRUCTURE ON CAPITAL STRUCTURE Yulianti, Melly Maragretha; Friyani, Rita; Tiswiyanti, Wiwik; melly
Jurnal Cakrawala Akuntansi Vol. 18 No. 1 (2026): Jurnal Cakrawala Akuntansi
Publisher : Faculty of Economics and Business Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jca.v18i1.48517

Abstract

Capital structure is a critical financial decision, particularly for mining companies characterized by high capital requirements and high business risk. Inconsistent findings in prior studies regarding the determinants of capital structure highlight the need for further research. This study examines the effects of profitability, liquidity, firm size, and asset structure on the capital structure of mining companies listed on Indonesia Stock Exchange during 2019-2023. The sample was selected using purposive sampling based on criteria including mining companies listed, publishing annual financial statements, and reporting profits. Based on these criteria, 25 companies were selected with an observation period of five years, resulting in a total of 125 observations. The analytical methods applied include multiple linear regression and descriptive analysis, using SPSS version 27, the primary statistical tool. The results indicate that profitability, liquidity, and asset structure have a significant negative effect on capital structure, while firm size does not. This study finds that the financing decisions of mining companies are broadly consistent with the pecking order theory, particularly with respect to profitability and liquidity. The negative effect of asset structure reflects the capital-intensive and high-risk characteristics of the mining industry, especially during 2019-2023, which includes the COVID-19 pandemic and heightened global economic volatility, leading firms to adopt more cautious debt policies. In addition, these findings contribute to practical guidance for management in determining optimal financing policies and assists investors in evaluating risks and investment decisions.