Pengaruh Suhu Dan Waktu Pretreatment Alkali Pada Isolasi Selulosa Limbah Batang Pisang

Lismeri, Lia; Darni, Yuli; Sanjaya, Mitra Dimas; Immadudin, Muhammad Iqbal

doi:10.33536/jcpe.v4i1.319

Cited by 6 publications

(11 citation statements)

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“…Breaking this bond causes lignin to dissolve in the DES, causing a decrease in the lignin content in the biomass [51]. Additionally, an increase in the pretreatment temperature means that more energy is provided in the pretreatment system, which can increase the ability of the DES to break ether bonds [52]. Therefore, it is necessary to consider the energy used during the pretreatment process to determine the optimum pretreatment time and temperature.…”

Section: The Effect Of Pretreatment Time and Pretreatment Temperaturementioning

confidence: 99%

Biohydrogen and Methane Production from Sugarcane Leaves Pretreated by Deep Eutectic Solvents and Enzymatic Hydrolysis by Cellulolytic Consortia

et al. 2022

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This study determined the optimal conditions for the deep eutectic solvent (DES) pretreatment of sugarcane leaves and the best fermentation mode for hydrogen and methane production from DES-pretreated sugarcane leaves. Choline chloride (ChCl):monoethanolamine (MEA) is the most effective solvent for removing lignin from sugarcane leaves. The optimum conditions were a ChCl: MEA molar ratio of 1:6, 120 °C, 3 h, and substrate-to-DES solution ratio of 1:12. Under these conditions, 86.37 ± 0.36% lignin removal and 73.98 ± 0.42% hemicellulose removal were achieved, whereas 84.13 ± 0.77% cellulose was recovered. At a substrate loading of 4 g volatile solids (VS), the simultaneous saccharification and fermentation (SSF) and separate hydrolysis and fermentation (SHF) processes yielded maximum hydrogen productions of 3187 ± 202 and 2135 ± 315 mL H2/L, respectively. In the second stage, methane was produced using the hydrogenic effluent. SSF produced 5923 ± 251 mL CH4/L, whereas SHF produced 3583 ± 128 mL CH4/L. In a one-stage methane production process, a maximum methane production of 4067 ± 320 mL CH4/L with a substrate loading of 4 g VS was achieved from the SSF process. SSF proved to be more efficient than SHF for producing hydrogen from DES-pretreated sugarcane leaves in a two-stage hydrogen and methane production process as well as a one-stage methane production process.

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Section: The Effect Of Pretreatment Time and Pretreatment Temperaturementioning

confidence: 99%

Biohydrogen and Methane Production from Sugarcane Leaves Pretreated by Deep Eutectic Solvents and Enzymatic Hydrolysis by Cellulolytic Consortia

et al. 2022

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“…Hasil ini menunjukkan bahwa semakin tinggi konsentrasi H2O2 dan semakin lama waktu proses bleaching maka selulosa semakin meningkat. Hal ini disebabkan karena semakin tinggi konsentrasi H2O2 dan semakin lama waktu proses bleaching maka reaksi bleaching akan berlangsung makin sempurna (Irfanto et al, 2014) dan proses pemutusan ikatan pada rantai lignin dan hemiselulosa berjalan lebih baik sehingga memperoleh lebih banyak ikatan selulosa yang terbebas (Lismeri et al, 2019). Hasil ini sejalan dengan penelitian Prawira (2019) pada pemutihan pulp serbuk gergaji sengon yang menunjukkan bahwa terjadi peningkatan kandungan selulosa setiap kenaikan konsentrasi H2O2 dan waktu proses bleaching.…”

Section: Selulosaunclassified

“…Penelitian isolasi selulosa telah banyak dilakukan menggunakan berbagai bahan baku diantaranya dari tandan kosong kelapa sawit (Dewanti, 2018), bambu (Permatasari et al, 2015), eceng gondok (Pitaloka et al, 2015), batang pisang (Lismeri et al, 2019), bagas tebu (Jufrinaldi, 2018) dan jerami padi (Prasetia et al, 2016). Penelitian mengenai isolasi selulosa dari serat sabut kelapa telah dilakukan oleh Wolok et al (2019) menggunakan pelarut NaClO, namun senyawa klorin dan turunannya dapat menghasilkan beberapa senyawa lain yang terklorinasi sehingga menyebabkan masalah bagi lingkungan (Jufrinaldi, 2018).…”

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“…Lignin berperan dalam melindungi selulosa dengan cara merekatkan selulosa dan hemiselulosa (Ayuni dan Hastini, 2020), sehingga perlu perlakuan untuk menghilangkan ikatan struktural tersebut. Secara umum, proses isolasi selulosa dilakukan melalui beberapa tahapan yaitu pretreatment, delignifikasi dan pemutihan (bleaching) (Lismeri et al, 2019). Delignifikasi adalah proses pemisahan lignin dengan cara mendegradasi ikatan kompleks lignoselulosa (Sun dan Cheng, 2001).…”

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“…Bahan baku setelah proses delignifikasi masih mengandung kromofor pada lignin sehingga perlu proses bleaching untuk menghasilkan selulosa. Pemutihan (bleaching) adalah proses kimia yang bertujuan untuk mendegradasi sisa-sisa lignin dengan cara memutus rantai pendek lignin sehingga lignin mudah larut saat pencucian (Lismeri et al, 2019). Bleaching agent yang dapat digunakan adalah hidrogen peroksida (H2O2).…”

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PENGARUH KONSENTRASI HIDROGEN PEROKSIDA DAN WAKTU PROSES BLEACHING TERHADAP KARAKTERISTIK SELULOSA SERAT SABUT KELAPA (Cocos nucifera L.)

Andari¹,

Arnata²,

Anggreni³

2022

JRMA

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Indonesia is the largest coconut producing country in the world. The abundant potential of coco fiber has not been fully utilized optimally. The purpose of this study was to determine the effect of hydrogen peroxide concentration and time of the bleaching process on the cellulose’s characteristics of coconut fiber, as well as to determine the concentration of hydrogen peroxide and time of the bleaching process to produce cellulose from coconut fiber with the best characteristics. This study used a factorial Randomized Block Design with two treatment factors, namely the concentration of H2O2 (K) (20%, 30% and 40%) and the bleaching process time (W) (60 minutes and 120 minutes). Variables observed were yield, degree of whiteness, cellulose, hemicellulose and lignin. The concentration of hydrogen peroxide and the time of the bleaching process affect the yield, whiteness, cellulose, hemicellulose and lignin on cellulose of coconut fiber. The interaction between treatments affected the degree of whiteness, cellulose, hemicellulose, and lignin but had no effect on the yield of the bleached coconut fiber. The best treatment in the bleaching process to produce cellulose from coco fiber is the combination of 40% hydrogen peroxide concentration and 120 minutes of bleaching time. The cellulose characteristics of coco fiber produced were yield, whiteness, cellulose, hemicellulose and lignin is 38.45±2.51%, 76.23±1.54%, 90.19±0.66 %, 5.53±0.58%, and 3.66±0.18%, respectively.

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Synthesis and Characterization of Corn Husk (Zea Mays L.) Cellulose Using Microwave-Assisted Extraction (MAE)

Yupa,

Purwaningsih,

Kemala

2023

J. Kim. Sains Apl.

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This research focuses on synthesizing cellulose from corn husks using microwave-assisted extraction (MAE), which aims to produce cellulose from corn husks through liquefaction, delignification, and bleaching processes. The total time required is only 14 minutes, thus shortening the process time. This study used three power variations: 450 W, 600 W, and 800 W. The results showed that the optimum conditions occurred at 800 W power. Hence, the higher the power caused the high cellulose content obtained, which amounted to 75.23% and decreased the lignin value to 15.78%, along with the increase in microwave power. FTIR analysis also confirmed the cellulose results obtained and indicated that the lignin groups were weakened or lost. Furthermore, morphological analysis of cellulose fibers by SEM showed that the surface of cellulose fibers was rough, oval, and irregular due to cracks caused by erosion. Then, the result of cellulose crystallinity using XRD was 45.8%. Compared to conventional methods, microwave-assisted cellulose synthesis exhibits better and more promising potential. This is because microwave radiation can be used to improve process time efficiency and achieve higher yields. Moreover, the proposed method is easier, faster, and straightforward.

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Pengaruh Suhu Dan Waktu Pretreatment Alkali Pada Isolasi Selulosa Limbah Batang Pisang

Cited by 6 publications

References 1 publication

Biohydrogen and Methane Production from Sugarcane Leaves Pretreated by Deep Eutectic Solvents and Enzymatic Hydrolysis by Cellulolytic Consortia

Biohydrogen and Methane Production from Sugarcane Leaves Pretreated by Deep Eutectic Solvents and Enzymatic Hydrolysis by Cellulolytic Consortia

PENGARUH KONSENTRASI HIDROGEN PEROKSIDA DAN WAKTU PROSES BLEACHING TERHADAP KARAKTERISTIK SELULOSA SERAT SABUT KELAPA (Cocos nucifera L.)

Synthesis and Characterization of Corn Husk (Zea Mays L.) Cellulose Using Microwave-Assisted Extraction (MAE)

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