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All Journal Jurnal Teknik Kimia Amkop Management Accounting Review (AMAR)
Bella Febrianti
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Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Energy Engineering Industrial & Manufacturing Engineering Social Sciences

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PENGARUH PERLAKUAN ASAM DAN WAKTU FERMENTASI TERHADAP PEMBENTUKAN BIOETANOL DENGAN BAHAN BAKU SABUT KELAPA Faisol Asip; Bella Febrianti; Siti Gibreallah
Jurnal Teknik Kimia Vol 23 No 3 (2017): Jurnal Teknik Kimia
Publisher : Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya

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Abstract

Sabut kelapa merupakan salah satu bahan limbah yang memiliki kandungan lignoselulosa yang cukup tinggi namun belum dimanfaatkan secara optimal. Pada umumnya sabut kelapa digunakan sebagai kerajinan tangan atau hanya dibuang dan dibakar begitu saja. Dengan kadar selulosa sebesar 44,4433% sabut kelapa dapat dikonversi menjadi bioetanol yang merupakan bentuk pemanfaatan yang lebih berguna dan memiliki nilai yang jauh lebih tinggi. Penelitian ini bertujuan untuk mengetahui pengaruh asam kuat (H2SO4) dan asam lemah (CH3COOH) pada delignifikasi untuk menurunkan kadar lignin pada sabut kelapa dengan variasi konsentrasi 1, 3, 5%. Setelah itu dilakukan proses hidrolisis dengan larutan basa (KOH 5%) yang selanjutnya dilakukan proses fermentasi dengan waktu 3, 5, 7 hari menggunakan ragi Saccharomyces cerevisiae. Dari hasil penelitian yang didapat kadar lignin terendah didapatkan pada sampel H2SO4 5%, sedangkan dari hasil hidrolisis didapat kadar glukosa tertinggi didapatkan oleh sampel H2SO4 5%, dan kadar bioetanol terbesar adalah 5,7768 %v/v yang didapatkan dari sampel H2SO4 5% dengan waktu fermentasi optimal selama 5 hari.
Analysis of Consumer Behavior on Purchasing Decisions at Assalam Hypermarket through Customer Purchase Interest Bella Febrianti; Purnamaningtyas Kusuma Dewi; Yuliana Subastine
Amkop Management Accounting Review (AMAR) Vol. 5 No. 2 (2025): July - December
Publisher : Sekolah Tinggi Ilmu Ekonomi Amkop Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37531/amar.v5i2.3251

Abstract

This study aims to analyze the effect of consumer behavior on purchasing decisions at Assalam Hypermarket with purchase intention as a mediating variable. The study uses a quantitative approach with an explanatory research method. The research population consists of customers and visitors to Assalam Hypermarket with a sample size of 150 respondents selected through purposive sampling. Primary data were collected through questionnaires and analyzed using the Partial Least Square Structural Equation Modeling (PLS-SEM) method with SmartPLS software. The results show that consumer behavior has a positive and significant effect on purchase interest, as well as a positive and significant effect on purchasing decisions. In addition, purchase interest also has a positive and significant effect on purchasing decisions. Another important finding is that purchase intention significantly mediates the relationship between consumer behavior and purchase decisions. This study confirms that positive consumer behavior can encourage an increase in purchase decisions, both directly and indirectly through the role of purchase intention. The results of this study are expected to provide strategic input for the management of Assalam Hypermarket in improving marketing strategies and strengthening customer loyalty
Co-Authors Faisol Asip Purnamaningtyas Kusuma Dewi Siti Gibreallah Yuliana Subastine