Bioethanol Production from Sugarcane Molasses with Simultaneous Saccharification and Fermentation (SSF) Method using<i>Saccaromyces cerevisiae-Pichia stipitis</i>Consortium

Kartini, Audiananti Meganandi; Dhokhikah, Yeny

doi:10.1088/1755-1315/207/1/012061

Cited by 9 publications

(6 citation statements)

References 10 publications

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“…The amount of (NH 4 ) 2 SO 4 added was calculated to give a final concentration of 2.5 g L −1 , which was selected because it had been reported as the optimum condition for fermentation under similar conditions 25 . Furthermore, this (NH 4 ) 2 SO 4 added gives a C/N ratio of ~36, which is considered an appropriate C/N ratio in fermentation with S. cerevisiae 27‐29 . Nevertheless, the effect of adding nitrogen source ((NH 4 ) 2 SO 4 ) was far less pronounced.…”

Section: Resultsmentioning

confidence: 99%

“…25 Furthermore, this (NH 4 ) 2 SO 4 added gives a C/N ratio of ∼36, which is considered an appropriate C/N ratio in fermentation with S. cerevisiae. [27][28][29] Nevertheless, the effect of adding nitrogen source ((NH 4 ) 2 SO 4 ) was far less pronounced. With a generation time of 90 min on average, there apparently is always sufficient detritus present in the fermentation broth.…”

Section: Effect Of Ph and Ammonium Sulfate On Ethanol Productionmentioning

confidence: 99%

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Valorization of cocoa's mucilage waste to ethanol and subsequent direct catalytic conversion into ethylene

Ayala

Kaiser

Pavón

et al. 2022

J of Chemical Tech & Biotech

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BACKGROUND The identification of new resources for producing biofuels and chemical‐based products is crucial for processes sustainability. This study presents a valorization route to produce ethanol and ethylene using cocoa's mucilage juice (MJ) residue from cocoa farms of variety ‘Arriba’ (AC). The processing parameters to maximize the ethanol production and subsequent selective conversion into ethylene were determined. Ethanol production has been carried out by investigating the effect of three parameters: the temperature of fermentation, the initial fermentation pH and the addition of (NH4)2SO4 as an N source in the presence of free Saccharomyces cerevisiae NCYC 366. Consecutively, the selectivity of ethanol–ethylene conversion using a zeolite‐based ZSM‐5 catalyst was evaluated at different temperatures and ethanol concentrations. RESULTS During ethanol production, the best sugar conversion was reached at 30 °C, adjusting the initial pH to 5 and without nitrogen source, resulting in 86.83% sugar conversion, the maximum ethanol concentration of 68.65 g L−1 and maximum ethanol production rate of 2.03 g L−1 h−1 after 168 h of fermentation. On the other hand, ethylene was produced using ZSM‐5‐based zeolite catalyst with >99.9% of efficiency in the temperature range 240–300 °C. In addition, selective ethylene formation was found at 240 °C and 30 g L−1 ethanol. CONCLUSION The approach hereby presented shows the valorization of MJ waste of AC variety to produce ethanol and ethylene with minimum processing input costs, demonstrating a successful route to convert a farm residue into a bio‐based product with enhanced marketability. © 2022 Society of Chemical Industry (SCI).

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Section: Resultsmentioning

confidence: 99%

Section: Effect Of Ph and Ammonium Sulfate On Ethanol Productionmentioning

confidence: 99%

Valorization of cocoa's mucilage waste to ethanol and subsequent direct catalytic conversion into ethylene

Ayala

Kaiser

Pavón

et al. 2022

J of Chemical Tech & Biotech

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“…Keuntungan lingkungan utama menggunakan etanol adalah keberlanjutan saat menggunakan sumber daya terbarukan sebagai bahan baku, karenanya menggembirakan kemandirian bahan bakar fosil, karena tidak memberikan tambahan bersih karbon dioksida ke atmosfer [12]. Bahan bakar nabati telah menjadi sumber energi yang digunakan manusia sejak zaman kuno, meningkatkan penggunaan bahan bakar nabati untuk tujuan pembangkit energi dengan minat khusus [13].…”

Section: Pendahuluanunclassified

Pembuatan Bioetanol Dari Tebu

Purba

Saragi

2021

Simet

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Biaya yang digunakan untuk membeli bahan bakar minyak bumi semakin meningkat, hal ini belum termasuk dengan biaya lain yang dikeluarkan. Meningkatnya biaya penggunaan bahan bakar fosil dan persediaannya yang semakin terbatas menyebabkan banyak penelitian sains, teknik, dan teknologi untuk mencari sumber bahan bakar alternatif lainnya. Salah satu alternatif yang telah ditemukan adalah penggunaan bioetanol sebagai bahan bakar alternatif. Bioetanol merupakan bahan bakar yang ramah lingkungan karena terbuat dari bahan bakar nabati serta memiliki angka oktan yang lebih tinggi dibandingkan dengan bahan bakar fosil seperti premium. Salah satu tanaman yang dapat digunakan untuk menghasilkan bioetanol dari proses fermentasi dan destilasi adalah tanaman tebu. Tujuan dari penelitian ini adalah mendapatkan pengganti bahan bakar yang berasal dari bahan bakar alternatif yang dapat membantu mengurangi krisis dari bahan bakar minyak bumi, mengetahui proses pengolahan tebu menjadi bioetanol, dan mengetahui besarnya nilai oktan atau RON (Research Octane Number) pada bioetanol. Pada penelitian ini dilakukan empat kali percobaan dengan menguji komposisi masing-masing komponen pengujian dan nilai oktan yang didapatkan tiap masing-masing pengujian adalah 114, 115, 116, dan 117.

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“…In comparison with pure cultures, co-cultivation systems could widen up the substrate utilisation scales (Jiang et al, 2019). Based on the advantages of these two fungi, their combination performs better in reducing sugar (Kartini & Dhokhikah, 2018). Indeed, the co-cultivation of fungi has been suggested to be more efficient for CBP compared to mono-cultivation (Grewal et al, 2020).…”

Section: Formation Of the Fungal Consortiummentioning

confidence: 99%

Improvement of Bioethanol Production in Consolidated Bioprocessing (CBP) via Consortium of Aspergillus niger B2484 and Trichoderma asperellum B1581

Ghazali¹,

Mustafa²,

Zainudin³

et al. 2021

JST

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Consolidated bioprocessing (CBP) in bioethanol production involves the combination of four essential biological procedures in a single bioreactor, using a mixture of organisms with favourable cellulolytic ability without the addition of exogenous enzymes. However, the main disadvantage of this process is the complexity to optimise all factors considering both enzymes and microbial activity at the same time. Hence, this study aimed to optimise suitable culture conditions for both organisms to work efficiently. Six single factors that are considered crucial for bioethanol production were tested in one-factor-at-a-time (OFAT) analysis and analysed using Response Surface Methodology (RSM) software for Aspergillus niger B2484 and Trichoderma asperellum B1581 strains. The formulation of a new consortia setting was developed based on the average of two settings generated from RSM testing several combinations of consortia concentrations (5:1, 2:4, 3:3, 4:2, and 1:5). The combination of 5:1 Aspergillus niger B2484 and Trichoderma asperellum B1581 produced the most ethanol with 1.03 g/L, more than A. niger B2484, alone with 0.34 g/L of ethanol, indicating the potential of the combination of A. niger B2484 and T. asperellum B1581 co-culture for bioethanol production in CBP.

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Bioethanol Production from Sugarcane Molasses with Simultaneous Saccharification and Fermentation (SSF) Method usingSaccaromyces cerevisiae-Pichia stipitisConsortium

Cited by 9 publications

References 10 publications

Valorization of cocoa's mucilage waste to ethanol and subsequent direct catalytic conversion into ethylene

Valorization of cocoa's mucilage waste to ethanol and subsequent direct catalytic conversion into ethylene

Pembuatan Bioetanol Dari Tebu

Improvement of Bioethanol Production in Consolidated Bioprocessing (CBP) via Consortium of Aspergillus niger B2484 and Trichoderma asperellum B1581

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