Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal IPTEK The Journal of Engineering Jurnal Teknik Kimia
Wa Ode Cakra Nirwana
Departemen Teknik Kimia, Fakultas Teknik, Universitas Brawijaya
Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Mechanical Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
PERUBAHAN KADAR AIR BAHAN DAUN JERUK PURUT TERHADAP EKSTRAK DAUN Sarosa, Aji Hendra; Dewi, Luthfi Kurnia; Asyikaputri, Devia Ellya; Rayhan, Hilmy; Nurhadianty, Vivi; Nirwan, Wa Ode Cakra; Hapsari, Safrina; Bayu, Ardian Indra
Jurnal Teknik Kimia Vol 18, No 1 (2023): Jurnal Teknik Kimia
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v18i1.4118

Abstract

Perlakuan awal tanaman, terutama kadar air mempengaruhi hasil ekstrak minyak atsiri, salah satunya pada minyak daun jeuk purut. Metode vacuum drying pada pengeringan daun jeruk purut dengan kadar air 15% menghasilkan rendemen tertinggi yaitu 1,222% dan kadar sitronelal 64,31%. Pengeringan daun pedada dengan oven pada suhu 50℃ menghasilkan rendemen tertinggi yaitu 28,79%. Penelitian ini menggunakan daun jeruk purut yang divariasi kadar air (60-70%; 30-40%; 10-20%) menggunakan oven vacuum pada suhu 50℃; tekanan ±12,3 Kpa. Proses ekstraksi secara soxhletasi dengan solven methanol, n-heksan, dan etil asetat, serta menggunakan metode destilasi dengan uap air. Hasil ekstrak diukur rendemen dan pengujian GC-MS. Hasil perhitungan diuji ANOVA untuk mengetahui perbedaan hasil perlakuan. Rendemen tertinggi ekstrak daun jeruk purut pada kadar air 60-70% dengan pelarut metanol yaitu 58,63%. Rendemen tertinggi pada kadar air 30-40% dengan pelarut etil-asetat sebanyak 30,99%, dan kadar air 10-20% dengan pelarut nheksana sebanyak 27,41%. Rendemen tertinggi pada distilasi uap yaitu pada kadar air 10-20% sebanyak 1,1833%. Hasil analisis ANOVA yaitu terdapat perbedaan yang nyata antar variabel kadar air dan pada interaksi antara jenis pelarut dan kadar air, tetapi tidak terdapat perbedaan yang nyata antar variabel jenis pelarut. ANOVA untuk metode distilasi uap yaitu terdapat perbedaan yang nyata antar variabel kadar air.  DOI : https://doi.org/10.33005/jurnal_tekkim.v18i1.4118
The Effect of Cabbage Waste Pretreatment on Lignocellulose Content for Bioethanol Production Luthfi Kurnia Dewi; Sadiah Tulus Setyobudi; Nurul Fajria Kurnianti; Wa Ode Cakra Nirwana; Rifa Rahma Andriana
IPTEK The Journal of Engineering Vol. 10 No. 2 (2024)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v10i2.a19270

Abstract

Cabbage waste represents a resource rich in lignocellulose, offering substantial potential as a raw material for bioethanol production. However, the nature of lignocellulosic complexes necessitates effective pretreatment strategies to enhance cellulose accessibility. This study aims to determine the effect of pretreatment on cabbage waste on changes in lignocellulosic content before and after pre-treatment to determine the influence of solution concentration and pretreatment duration of cabbage waste on the level of reducing sugars, which will subsequently affect bioethanol fermentation. In this research, cabbage waste was pretreated using H2SO4 1 M and alkaline NaOH 1 M for 1 hour to determine the pretreatment agent that produced the highest cellulose content. Furthermore, the concentration (1 M; 1.5 M; 2 M) and the pretreatment time (1 hour; 1.5 hours; 2 hours) will be varied to produce the highest reducing sugar content, which will be continued to the Simultaneous Saccharification and Fermentation (SSF). The results showed that pretreatment using H2SO4 produced the highest change in cellulose content. Pre-treatment using H2SO4 at a concentration of 1.5 M for 1.5 hours produced the highest reducing sugar concentration of 0.32 g/L. The highest bioethanol content was obtained during fermentation for 72 hours at 22.25%.
Co-Authors Asyikaputri, Devia Ellya Bayu, Ardian Indra Dewi, Luthfi Kurnia Hapsari, Safrina Luthfi Kurnia Dewi Nurhadianty, Vivi Nurul Fajria Kurnianti Rayhan, Hilmy Rifa Rahma Andriana Sadiah Tulus Setyobudi Sarosa, Aji Hendra