Bioconversion of Oil Palm Trunk Residues Hydrolyzed by Enzymes from Newly Isolated Fungi and Use for Ethanol and Acetic Acid Production Under Two-Stage and Simultaneous Fermentation

Nutongkaew, Tanawut; Prasertsan, Poonsuk; Leamdum, Chonticha; Sattayasamitsathit, Supalak; Noparat, Pongsak

doi:10.1007/s12649-019-00678-x

Cited by 20 publications

(15 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Water and substrate powder will mix to form a tight bulk or pellet, which not only significantly reduces oxygen transfer, but also obstructs in-depth growth of fungal mycelium. Comparing to particle size, the important effect of initial moisture content on products production by SSF was widely demonstrated in many previous studies (Almeida et al 2019 ; Botella et al 2007 ; Yang et al 2006 ; Ajijolakewu et al 2016 ; Nutongkaew et al 2019 ; Ezeilo et al 2019 ). Our results show that 1:3 solid–liquid ratio (75% of moisture, Y = 11.75 mg/g, Fig.…”

Section: Resultsmentioning

confidence: 83%

“…Trichoderma asperellum USM SD4 which grew on oil palm empty fruit bunch showed a lower optimum temperature of 27 °C for xylanase production (Ajijolakewu et al 2016 ). In fact, these basic findings revealed optimum growth temperatures between 25 and 30 °C for products production by SSF of filamentous fungi (Almeida et al 2019 ; Botella et al 2007 ; Yang et al 2006 ; Ajijolakewu et al 2016 ; Nutongkaew et al 2019 ; Ezeilo et al 2019 ). Furthermore, from our work and previous studies, it must be pointed out that filamentous fungi are better than other microorganism, such as bacteria, for production of products by SSF due to their optimal incubation temperature closing to room temperature.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Concurrent production of glycyrrhetic acid 3-O-mono-β-d-glucuronide and lignocellulolytic enzymes by solid-state fermentation of a plant endophytic Chaetomium globosum

Gao

Yang

Zhang

et al. 2021

Bioresour. Bioprocess.

View full text Add to dashboard Cite

Glycyrrhetic acid 3-O-mono-β-d-glucuronide (GAMG) as an important derivative of glycyrrhizin (GL) shows stronger biological activities and higher sweetness than GL. The biotransformation process is considered as an efficient strategy for GAMG production, due to its mild reaction, high production efficiency and environmentally friendly status. In this study, licorice straw was used for the first time as a medium for GAMG and lignocellulosic enzyme production via solid-state fermentation (SSF) of endophytic fungus Chaetomium globosum DX-THS3. The fermentation conditions including particle size, temperature, seed age, inoculum size, and moisture of substrate were optimized. Furthermore, additional nitrogen sources and carbon sources were screened for GAMG production by C. globosum DX-THS3 of SSF. Under optimal fermentation conditions, the percent conversion of glycyrrhizin reached 90% in 15 days, whereas the control needed 35 days to achieve the same result. The productivity of optimization (P = 2.1 mg/g/day) was 2.33-fold that of non-optimization (P = 0.9 mg/g/day). Meanwhile, high activities of filter paper enzyme (FPase) (245.80 U/g), carboxymethyl cellulase (CMCase) (33.67 U/g), xylanase (83.44 U/g), and β-glucuronidase activity (271.42 U/g) were obtained faster than those in the control during SSF. Our study provides a novel and efficient strategy for GAMG production and indicates C. globosum DX-THS3 as a potential producer of lignocellulolytic enzymes.

show abstract

Section: Resultsmentioning

confidence: 83%

Section: Resultsmentioning

confidence: 99%

Concurrent production of glycyrrhetic acid 3-O-mono-β-d-glucuronide and lignocellulolytic enzymes by solid-state fermentation of a plant endophytic Chaetomium globosum

Gao

Yang

Zhang

et al. 2021

Bioresour. Bioprocess.

View full text Add to dashboard Cite

show abstract

“…In general, low-cost and easily available substrates, such as crop straw, are usually used as medium for SSF using fungi. However, complex and adequate enzymes are needed for the degradation of polysaccharides in these substrates (Prajapati et al, 2018;Deswal et al, 2011;Pandey, 2003;Nutongkaew et al, 2019;Ezeilo et al, 2019). Compared with liquid fermentation, more time is needed for fungal cell growth to secrete a complex enzyme system in SSF.…”

Section: Fructose Can Signi Cantly Improve Gamg Production By C Globosum Dx-ths3mentioning

confidence: 99%

“…Nutongkaew et al, 2019) and Trichoderma koningiopsis TM3(Nutongkaew et al, 2019) for the degradation of oil palm trunk to produce reducing sugar. Trichoderma asperellum UC1 (Ezeilo et al, 2019) utilizes raw oil palm frond leaves to produce cellulase and xylanase.…”

mentioning

confidence: 99%

Concurrently Produce a Novel High-Potency Sweetener (Glycyrrhetic Acid 3-O-Mono-β-D-glucuronide) and Lignocellulolytic Enzymes using Plant Entophytic Chaetomium Globosum DX-THS3 by Solid-State Fermentation

Gao

Yang

Zhang

et al. 2021

Preprint

View full text Add to dashboard Cite

Licorice straw was used for the first time as a medium for glycyrrhetic acid 3-O-mono-β-D-glucuronide (GAMG) and lignocellulosic enzyme production via solid-state fermentation (SSF) of endophytic fungus Chaetomium globosum DX-THS3. Under optimal fermentation conditions, the percent conversion of glycyrrhizin reached 90% in 15 days, whereas the control needed 35 days to achieve the same result. The productivity of optimization (P=2.1 mg•g-1•day-1) was 2.33-fold that of non-optimization (P=0.9 mg•g-1•day-1). Meanwhile, high activities of filter paper enzyme (FPase) (234.6 U/g), carboxymethyl cellulase (CMCase) (29.25 U/g), xylanase (72.52 U/g), and β-glucuronidase activity (264.17 U/g) were obtained faster than those in the control during SSF. Our study provides a novel and efficient strategy for GAMG production and indicates C. globosum DX-THS3 as a potential producer of lignocellulolytic enzymes.

show abstract

“…Moreover, the sugar produced by the hydrolysis of raw materials cannot be fermented directly, which affects the yield of alcohol. Also, phenols, aldehydes, acids, and other organic substances produced during pretreatment and hydrolysis may inhibit Fermentation and have toxic effects on the biocatalytic host (Tanawut et al 2020). This results in low e ciency and the need to integrate additional removal and recovery processes during Fermentation.…”

Section: Introductionmentioning

confidence: 99%

Bioethanol Production from Sugarcane Molasses by Engineered Strain Lactobacillus Casei E1

Wang

Tian

Liu

et al. 2021

Preprint

View full text Add to dashboard Cite

Sugarcane molasses are considered a potential source for bioethanol's commercial production because of its availability and low market price. It contains high concentrations of fermentable sugars that can be directly metabolized by microbial Fermentation. Lactic acid bacteria, especially Lactobacillus casei, have a high potential to be a biocatalyst in ethanol production that they are characterized by strong abilities of carbohydrate metabolism, ethanol synthesis, and high alcohol tolerance. This study aimed to evaluate the feasibility of producing ethanol from sugarcane molasses by Lactobacillus casei used engineering strain L. casei E1 as a starter culture. The effects of environmental factors on the metabolism of L. casei E1 were analyzed by high-performance liquid chromatography (HPLC) system, and the gene expression of key enzymes in carbon source metabolism was detected using quantitative real-time PCR (RT-qPCR). Results showed that the strain could grow well, ferment sugar quickly and produce high yielded ethanol in cane molasses. By fermenting this bacterium anaerobically at 37°C for 36 h incubation in 5 °BX molasses when the fermenter's pH was controlled at 6.0, ethanol yield reached 13.77 g/L, and carbohydrate utilization percentage was 78.60%. RT-qPCR results verified the strain preferentially ferment glucose and fructose of molasses to ethanol at the molecular level. In addition, the metabolism of sugars, especially fructose, would be inhibited by elevating acidity. Our findings support the theoretical basis for exploring Lactic acid bacteria as a starter culture for converting sugarcane molasses into ethanol.

show abstract

Bioconversion of Oil Palm Trunk Residues Hydrolyzed by Enzymes from Newly Isolated Fungi and Use for Ethanol and Acetic Acid Production Under Two-Stage and Simultaneous Fermentation

Cited by 20 publications

References 70 publications

Concurrent production of glycyrrhetic acid 3-O-mono-β-d-glucuronide and lignocellulolytic enzymes by solid-state fermentation of a plant endophytic Chaetomium globosum

Concurrent production of glycyrrhetic acid 3-O-mono-β-d-glucuronide and lignocellulolytic enzymes by solid-state fermentation of a plant endophytic Chaetomium globosum

Concurrently Produce a Novel High-Potency Sweetener (Glycyrrhetic Acid 3-O-Mono-β-D-glucuronide) and Lignocellulolytic Enzymes using Plant Entophytic Chaetomium Globosum DX-THS3 by Solid-State Fermentation

Bioethanol Production from Sugarcane Molasses by Engineered Strain Lactobacillus Casei E1

Contact Info

Product

Resources

About