Bioethanol Production By Utilizing Cassava Peels Waste Through Enzymatic And Microbiological Hydrolysis

Witantri, R G; Purwoko, Tjahjadi; Sunarto, .; Mahajoeno, Edwi

doi:10.1088/1755-1315/75/1/012014

Cited by 15 publications

(12 citation statements)

References 5 publications

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“…Hasil dari penelitian tersebut Penggunaan metode SSF mampu menghasilkan etanol lebih tinggi yaitu sebesar 2,93 g/l dibandingkan dengan metode SHF yang hanya mampu menghasilkan 2,58 g/l [8]. Peneliti yang lain yaitu Witantri (2017) yaitu Pembuatan Bioetanol dari limbah kulit singkong melalui proses hidrolisis enzimatik dan mikrobiologi, penelitian ini menggunakan multi enzim (selulase) dengan proses fermentasi menggunakan fermipan sebanyak 2% dalam waktu 2 hari dapat menghasilkan etanol sebesar 3.67% [10].…”

Section: Pendahuluanunclassified

Pengaruh Konsentrasi Enzim Silanase dan Saccharomyces Cerevisiae dalam Pembuatan Bioethanol dari Limbah Kulit Singkong dengan Proses Sakarifikasi dan Fermentasi Simultan

Anggriani¹,

Kalsum

Nurjannah

2020

JCPE

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Bioetanol merupakan salah satu alternatif untuk mengurangi penggunaan bahan bakar minyak, atas dasar tersebut maka dilakukan penelitian untuk membuat bioetanol dari bahan baku yang mengandung lignoselulosa seperti kulit singkong dengan melihat pengaruh konsentrasi enzim silanase dan jumlah ragi. Metode yang digunakan dalam penelitian ini yaitu sakarifikasi dan fermentasi serentak dengan menggunakan dua variabel. Variabel pertama, konsentrasi enzim silanase yaitu 30, 50 dan 75 unit. Variabel kedua, jumlah ragi Saccharomyces Cerevisiae yaitu 5% dan 10% b/v. Proses pertama dilakukan persiapan sample dengan mengeringkan dan menghaluskan sample, setelah itu dilakukan proses delignifikasi untuk mengurangi kadar lignin dan dilanjutkan dengan metode sakarifikasi dan fermentasi serentak, proses sakarifikasi dilakukan selama 18 jam dan fermentasi selama 96 jam. Hasil akhir dianalisa menggunakan kromatografi gas. Hasil yang diperoleh pada pemakaian enzim 75 unit dengan jumlah ragi 10% merupakan hasil dengan kadar etanol tertinggi yaitu 3.018% sedangkan kadar etanol terkecil diperoleh dari hasil pemakaian enzim 30 unit dengan jumlah ragi 5%. Dari data yang diperoleh dapat terlihat bahwa pemakaian enzim tertinggi menghasilkan kadar etanol yang tinggi pula, begitu juga dengan jumlah ragi Saccharomyces Cerevisiae 10% menghasilkan kadar etanol yang lebih tinggi daripada jumlah ragi 5%.

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Section: Pendahuluanunclassified

Pengaruh Konsentrasi Enzim Silanase dan Saccharomyces Cerevisiae dalam Pembuatan Bioethanol dari Limbah Kulit Singkong dengan Proses Sakarifikasi dan Fermentasi Simultan

Anggriani¹,

Kalsum

Nurjannah

2020

JCPE

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“…Anaerobic digestion involves degradation of organic matter in the absence of oxygen. The process involves four stages [16]. The first stage is hydrolysis which is the slowest among the four degradation steps [16].…”

Section: Introductionmentioning

confidence: 99%

“…The process involves four stages [16]. The first stage is hydrolysis which is the slowest among the four degradation steps [16]. Bacteria's transform complex organic compounds into liquefied monomers and polymers.…”

Section: Introductionmentioning

confidence: 99%

Production and purification of biogas from cassava peel using cow dung as inoculum

Fagbenle

Olukanni

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The study examined biogas production from cassava peel and cow dung due to the large quantity of cassava peel disposed at dumpsites in local cassava processing sites. A 200L biodigester was used for the experiment. It contained 25 kg of cassava peel, 25 kg of cow dung and 100 kg of water in the ratio of 1:1:4, respectively. A cumulative volume of 937.3L of biogas was generated after the 30 days digestion period. The biogas generated was pass through a combined absorption and adsorption pre-treatment process to reduce the concentration of impurities in the biogas. The procedure had a 91.5% CO2removal efficiency and 88% H2S removal efficiency. The biogas, after purification can be used for cooking. Also, the digestate from the anaerobic digestion process is rich in NPK, which can be used as fertilizer.

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“…Besides the above-mentioned facts, the amount of cassava peel waste generated from cassava processing is high and not sufficiently utilized [29]. Cassava peels are a lignocellulose biomass, which can be used for ethanol production as a source of renewable energy [30].…”

Section: Introductionmentioning

confidence: 99%

“…However, the matrix of lignin and hemicellulose has a barrier function for the digestion of the peels [30]. Hydrolysis is one of the essential pre-treatments for cassava peels to degrade the peels to simple sugars, which can be further converted to ethanol [29,30]. The use of enzymes for peeling can facilitate the hydrolysis of the peels for their later application in ethanol production.…”

Section: Introductionmentioning

confidence: 99%

Enzyme-Assisted Mechanical Peeling of Cassava Tubers

et al. 2020

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In this study, the effect of enzymatic pre-treatment and the size of cassava tubers on mechanical peeling was examined. Cassava tubers were sorted based on their mass as small, medium and large. Viscozyme® L and an abrasive cassava peeling machine was used for the enzymatic pre-treatment and the mechanical peeling, respectively. Response surface methodology (RSM) was used to investigate the effect of the enzyme dose (0.5–1.9 mL g−1), incubation time (1.5–6 h), peeling time (1.5–4.5 min) and size of the tubers (small, medium and large) on the peeling process. Peeled surface area (PSA) and peel loss (PL) were measured as main responses in RSM. Results showed that the PSA and PL were significantly (p < 0.05) influenced by the enzyme dose, incubation time and peeling time. The size of tubers only had a significant impact on the PSA. The optimum operating conditions for different sizes of tubers were found and validated. Under optimum conditions, the PSA of the large tubers (89.52%) was significantly higher than the PSA of the medium and small tubers (p < 0.05). Application of enzymatic pre-treatment can improve the mechanical peeling process especially for larger cassava tubers.

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Bioethanol Production By Utilizing Cassava Peels Waste Through Enzymatic And Microbiological Hydrolysis

Cited by 15 publications

References 5 publications

Pengaruh Konsentrasi Enzim Silanase dan Saccharomyces Cerevisiae dalam Pembuatan Bioethanol dari Limbah Kulit Singkong dengan Proses Sakarifikasi dan Fermentasi Simultan

Pengaruh Konsentrasi Enzim Silanase dan Saccharomyces Cerevisiae dalam Pembuatan Bioethanol dari Limbah Kulit Singkong dengan Proses Sakarifikasi dan Fermentasi Simultan

Production and purification of biogas from cassava peel using cow dung as inoculum

Enzyme-Assisted Mechanical Peeling of Cassava Tubers

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