Proses Delignifikasi Menggunakan Naoh Dan Amonia (Nh3) Pada Tempurung Kelapa

Kurniaty, Ika

doi:10.36055/jip.v6i4.2546

Cited by 13 publications

(14 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Biopolimer juga terdapat pada kandungan senyawa selulosa dan lignin yang dapat memisahkan logam berat[4] DELIGNIFIKASI Merupakan tahap awal yang bertujuan untuk mengurangi kadar lignin di dalam bahan berlignoselulosa. Delignifikasi akan membuka struktur lignoselulosa agar selulosa menjadi lebih mudah diakses [5]. proses delignifikasi akan membuka komponen senyawa lignoselulosa agar selulosa mudah diakses.…”

Section: Serabut Kelapaunclassified

Pemanfaatan Serabut Kelapa Sebagai Biosorben Dalam Removal Cod Pada Limbah Cair Industri Pewarna Makanan

Purwaningsih

Muliawati

2022

JOICHE

View full text Add to dashboard Cite

The liquid waste of the food industry has recently increased. Therefore, when it is discharged into the waters, it will cause turbidity and can damage the ecosystem inside. One of the wastewater treatment techniques is absorption using biosorbents, one of which is made from coconut fiber to reduce the color intensity of the liquid waste. The purpose of this study was to determine the effects of the coconut fiber biosorbent on the color intensity, COD, and pH of the liquid waste of the food industry. In this research, the coconut fiber was delignified with a 2 M NaOH solution and then activated with a 3 N solution. The research variables consisted of the weight percentages of biosorbent by 1%, 2%, 3%, 4%, and 5%, and the contact time of 30 and 60 minutes with shaker stirring. Meanwhile, the most optimum results in COD removal happened at the addition of 4% for 60 minutes, from the initial COD of 1179 mg/L O2 to 780 mg/L O2 within the removal of 26.5%. The highest pH removal of 6.98 occurred in the variable addition of 1% for 30 minutes, whereas the lowest pH removal of 6.5

show abstract

Section: Serabut Kelapaunclassified

Pemanfaatan Serabut Kelapa Sebagai Biosorben Dalam Removal Cod Pada Limbah Cair Industri Pewarna Makanan

Purwaningsih

Muliawati

2022

JOICHE

View full text Add to dashboard Cite

show abstract

“…Proses delignifikasi dapat melarutkan kadar lignin di dalam bahan sehingga dapat memudahkan proses pemisahan lignin dengan serat. Delignifikasi menggunakan etanol mengakibatkan kerusakan terhadap struktur lignin dari kandungan lignoselulosa dan mengubah lignoselulosa menjadi fiber dengan kandungan selulosa yang tinggi (Kurniaty et al, 2017).…”

Section: Proses Delignifikasiunclassified

Pemanfaatan Jerami Padi Sebagai Bioplastik Dengan Menggunakan Metode Perlakuan Pelarut Organik

Setiawan¹,

Anggraini²,

Ramadani³

et al. 2021

METANA

View full text Add to dashboard Cite

Jerami padi memilki kandungan selulosa yang dapat dimanfaatkan sebagai bahan baku pembuatan bioplastik. Penelitian ini bertujuan untuk mensintesis bioplastik dari bahan baku jerami padi menggunakan perlakuan pelarut organik serta menganalisis pengaruh rasio massa pati dengan selulosa karakteristik produk bioplastik. Proses delignifikasi jerami menggunakan larutan etanol 5% dan 35% pada suhu 80oC selama dua jam. Bioplastik dibuat dengan rasio massa pati dengan selulosa sebesar 1:0,5; 1:1; dan 1:1,5. Karakterisasi menggunakan metode SEM, XRD, TG-DTA, uji tarik, uji transmisi uap, serta uji degradasi. Hasil penelitian menunjukkan bahwa proses delignifikasi menggunakan etanol menyebabkan peningkatan kadar selulosa serta kristalinitas jerami. Morfologi bioplastik menunjukkan permukaan yang tidak rata serta terdapat bagian matriks yang terpisah dengan fiber. Hasil TG-DTA menunjukkan pengurangan massa bioplastik sebesar 81,01% pada suhu 550oC. Hasil kuat tarik terbaik pada bioplastik yang dibuat dengan rasio massa pati dengan selulosa 1:0,5 pada konsentrasi delignifikasi etanol 35%. Nilai kuat tarik yang diperoleh sebesar 8,773 Mpa. Pengujian degradasi bioplastik dilakukan selama 10 hari diperoleh nilai % degradasi terbesar bioplastik adalah sebesar 99,9%. Rice straw contains cellulose which can be used as raw material for making bioplastics. This study aims to synthesize bioplastics from rice straw using organic solvent treatment and analyze the effect of the mass ratio of starch to cellulose on the characteristics of bioplastic products. The straw delignification process used 5% and 35% ethanol solution at 80oC for two hours. Bioplastics are made with a mass ratio of starch to cellulose of 1:0.5; 1:1; and 1:1.5. Characterization using SEM, XRD, TG-DTA methods, tensile test, vapour transmission test, and degradation test. The results showed that the delignification process using ethanol caused an increase in cellulose content and straw crystallinity. The morphology of the bioplastic shows an uneven surface and there are parts of the matrix that are separated from the fiber. The results of TG-DTA showed a reduction the mass of bioplastic by 81.01% at a temperature of 550oC. The best tensile strength results in bioplastics made with a mass ratio of starch to cellulose 1:0.5 at a delignification concentration of 35% ethanol. The tensile strength value obtained was 8,773 Mpa. The bioplastic degradation test was carried out for 10 days and the largest percentage of bioplastic degradation was 99.9%.

show abstract

“…The delignification process is often used with the use of a base solution. The use of alkaline or alkaline pretreatment solutions such as the use of NaOH can be used to help separate lignin from cellulose fibers (Kurniaty, et al, 2017).…”

Section: Preliminarymentioning

confidence: 99%

Synthesis of Acetate Cellulosa From the Palm Oil Empty Floor Through the Reaction of Activation

Mauliana¹,

Kurniasih²,

Syafruddin³

2019

J.Scien.Techno.Reaction

View full text Add to dashboard Cite

Acetate cellulose is cellulose whose hydroxyl group is replaced by an acetyl group. Celluloseacetate has a high enough attractiveness because it is biodegradable so it is environmentally friendly. The purpose of this study is to increase the acetyl content of cellulose acetate by theacetylation reaction. This study uses 25 grams of empty fruit bunches to get cellulose, the delignification process is carried out for 30 minutes with NaOH solution, and the bleachingprocess for 1.5 hours with H2O2 solution. Next, as much as 5 grams of cellulose was carriedout by the acetylation process by adding glacial CH3COOH solution, anhydrous CH3COOHsolution with a ratio of 1:10, 1: 12.5 and 1:15 (w / v) and H2SO4 as a catalyst, withtemperature variations of 40oC, 55oC and 70oC. Next, an acetyl concentration was analyzedby titration, and substitution degree analysis was carried out. The best results obtained fromthe two analyzes will be carried out the Fourier Transform Infrared (FTIR) test and theScanning Electron Microscope (SEM) test. Acetyl content obtained was 8,152 - 24,58% andthe degree of substitution obtained was 0,3 - 1,2%.

show abstract

Proses Delignifikasi Menggunakan Naoh Dan Amonia (Nh3) Pada Tempurung Kelapa

Cited by 13 publications

References 0 publications

Pemanfaatan Serabut Kelapa Sebagai Biosorben Dalam Removal Cod Pada Limbah Cair Industri Pewarna Makanan

Pemanfaatan Serabut Kelapa Sebagai Biosorben Dalam Removal Cod Pada Limbah Cair Industri Pewarna Makanan

Pemanfaatan Jerami Padi Sebagai Bioplastik Dengan Menggunakan Metode Perlakuan Pelarut Organik

Synthesis of Acetate Cellulosa From the Palm Oil Empty Floor Through the Reaction of Activation

Contact Info

Product

Resources

About