Investigation of alkaline hydrogen peroxide pretreatment to enhance enzymatic hydrolysis and phenolic compounds of oil palm trunk

Tareen, Afrasiab Khan; Punsuvon, Vittaya; Parakulsuksatid, Pramuk

doi:10.1007/s13205-020-02169-6

Cited by 26 publications

(15 citation statements)

References 62 publications

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“…Hydrolysis is the breakdown of polymer compounds into monomer compounds. The decomposition of lignocellulosic biomass, specifically cellulose and hemicellulose, into simple sugar monomers is known as polysaccharide hydrolysis (Patil, Cimon, Eskicioglu, & Goud, 2021;Tareen, Punsuvon, & Parakulsuksatid, 2020). Enzymes can speed up the hydrolysis process, which is known as enzymatic hydrolysis.…”

Section: Enzimatic Hydrolysis Process Using Aspergillus Nigermentioning

confidence: 99%

Bioethanol From Oil Palm Empty Fruit Bunch (OPEFB): a Review Pretreatment and Enzymatic Hydrolysis

Irwan

Salim

2021

IJTK

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The fossil fuel crisis will remain a major topic that needs to be looked for a solution together until other alternative fuels are found. Bioethanol has now become a trend and focus of researchers in Indonesia and various parts of the world as an environmentally friendly alternative energy and given the potential of Indonesia as one of the largest palm oil-producing countries in the world with the amount of lignocellulosic biomass waste such as Oil Palm Empty Fruit Bunch (OPEFB). OPFEB is the most desirable and realistic alternative to substitute fossil fuels as the main energy source. The use of these wastes as renewable fuels is very significant in terms of expanding economic value and solving environmental problems. This review paper offers an insight into the current creative approaches to the development of OPEFB such as characteristics of OPEFB, pretreatment process, and enzymatic hydrolysis.

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Section: Enzimatic Hydrolysis Process Using Aspergillus Nigermentioning

confidence: 99%

Bioethanol From Oil Palm Empty Fruit Bunch (OPEFB): a Review Pretreatment and Enzymatic Hydrolysis

Irwan

Salim

2021

IJTK

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“…Recently, research has shown that the combined use of sodium hydroxide (NaOH) with hydrogen peroxide (H 2 O 2 ) as a pretreatment can be quite effective for a wide range of lignocellulosic biomass types, significantly improving the delignification step and enhancing the enzymatic hydrolysis of hollocellulose [22][23][24]. Furthermore, this type of pretreatment can be effective at relatively low temperatures, requiring only low energy consumption, whereas the generation of inhibitory products is considerably lower compared to other chemical pretreatment methodologies, based on the use of acids and high temperatures [21,25,26].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Various Pretreatment Approaches for Bio-Ethanol Production from Willow Sawdust, Using Co-Cultures and Mono-Cultures of Different Yeast Strains

et al. 2022

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The effect of different pretreatment approaches based on alkali (NaOH)/hydrogen peroxide (H2O2) on willow sawdust (WS) biomass, in terms of delignification efficiency, structural changes of lignocellulose and subsequent fermentation toward ethanol, was investigated. Bioethanol production was carried out using the conventional yeast Saccharomyces cerevisiae, as well as three non-conventional yeasts strains, i.e., Pichia stipitis, Pachysolen tannophilus, Wickerhamomyces anomalus X19, separately and in co-cultures. The experimental results showed that a two-stage pretreatment approach (NaOH (0.5% w/v) for 24 h and H2O2 (0.5% v/v) for 24 h) led to higher delignification (38.3 ± 0.1%) and saccharification efficiency (31.7 ± 0.3%) and higher ethanol concentration and yield. Monocultures of S. cerevisiae or W. anomalus X19 and co-cultures with P. stipitis exhibited ethanol yields in the range of 11.67 ± 0.21 to 13.81 ± 0.20 g/100 g total solids (TS). When WS was subjected to H2O2 (0.5% v/v) alone for 24 h, the lowest ethanol yields were observed for all yeast strains, due to the minor impact of this treatment on the main chemical and structural WS characteristics. In order to decide which is the best pretreatment approach, a detailed techno-economical assessment is needed, which will take into account the ethanol yields and the minimum processing cost.

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“…In this study, the alkaline hydrogen peroxide (AHP) pretreated fibers produced in our previous study 31 were used for bioethanol production from a 300 mL flask to a 1 L agitating fermenter. This study is the first exploration for scaling up of bioethanol production from AHP pretreated OPT fibers.…”

Section: Introductionmentioning

confidence: 99%

Cellulase Addition and Pre-hydrolysis Effect of High Solid Fed-Batch Simultaneous Saccharification and Ethanol Fermentation from a Combined Pretreated Oil Palm Trunk

et al. 2021

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In the current study, alkaline hydrogen peroxide pretreated oil palm trunk fibers were subjected to ethanol production via simultaneous saccharification and fermentation (SSF). The effect of high substrate loading, enzyme and substrate feeding strategy, and influence of a pre-hydrolysis step in SSF was studied to scale up ethanol production. In the enzyme feeding strategy, the addition of an enzyme at the start of fed-batch SSF significantly (p < 0.05) increased ethanol concentration to 51.05 g/L, ethanol productivity (Q P ) to 0.61 g/L•h, and ethanol yield (Y P/S ) to 0.31 g/g, with a theoretical ethanol yield of 60.65%. Furthermore, the initial velocity of the enzyme (V 0 ) in the first 8 h was 2.27 (g/h) with a glucose concentration of 18.17 g/L. On the other hand, the substrate feeding strategy and pre-hydrolysis simultaneous saccharification and fermentation (PSSF) process were studied in a 1 L fermenter. PSSF in fed batch with 10 and 20% (w/v) significantly improved enzyme hydrolysis, circumvent the problems of high viscosity, reduced overall fermentation time, and gave the highest ethanol concentration of 51.66 g/L, ethanol productivity (Q P ) of 0.72 g/L•h, ethanol yield (Y P/S ) of 0.31 g/g, and theoretical ethanol yield of 60.66%. In addition, PSSF with 10 and 20% significantly increased the initial velocity of the enzyme (V 0 ) to 4.64 and 4.40 (g/h) and glucose concentration to 37.14 and 35.27 g/L, respectively. This result indicated that ethanol production by PSSF along with substrate feeding could enhance ethanol production efficiently.

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Investigation of alkaline hydrogen peroxide pretreatment to enhance enzymatic hydrolysis and phenolic compounds of oil palm trunk

Cited by 26 publications

References 62 publications

Bioethanol From Oil Palm Empty Fruit Bunch (OPEFB): a Review Pretreatment and Enzymatic Hydrolysis

Bioethanol From Oil Palm Empty Fruit Bunch (OPEFB): a Review Pretreatment and Enzymatic Hydrolysis

A Comparative Study of Various Pretreatment Approaches for Bio-Ethanol Production from Willow Sawdust, Using Co-Cultures and Mono-Cultures of Different Yeast Strains

Cellulase Addition and Pre-hydrolysis Effect of High Solid Fed-Batch Simultaneous Saccharification and Ethanol Fermentation from a Combined Pretreated Oil Palm Trunk

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