Bio-Hydrogen Production from Pineapple Waste Extract by Anaerobic Mixed Cultures

Reungsang, Alissara; Sreela-or, Chakkrit

doi:10.3390/en6042175

Cited by 30 publications

(11 citation statements)

References 36 publications

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“…A maximum xylanase activity of 45.63 U/mL and bio-hydrogen potential of 440 mL H 2 /g VS was observed at pH 5. Similar results are reported by Reungsang and Sreela-or [50] for the maximum hydrogen potential at an initial pH 5.56. The optimum pH 5 for obtaining the maximum rate of H 2 is found same when compared with similar experiments of pH 5-6 using disaccharide sucrose and heat treated inoculum [51].…”

Section: Effect Of Initial Ph On Both Bio-hydrogen and Enzyme Productionsupporting

confidence: 90%

Bio‐hydrogen Production By Enzymic Hydrolysis of Sunflower Oil Sludge

Sakthiselvan

Naveena

Gopinath³

et al. 2015

CLEAN Soil Air Water

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Bio‐hydrogen was produced from different agro‐industrial wastes by Hypocrea lixii SS1 isolated from fouled soil. The alkaline pre‐treatment of sunflower oil sludge resulted in a bio‐hydrogen potential of 405 mL H2/g volatile solids (VS). The role of sunflower oil sludge on the bio‐hydrogen production by H. lixii SS1 was investigated. It was inferred that xylose enhances the bio‐hydrogen production when compared to other monomeric carbohydrates in sunflower oil sludge. A maximum bio‐hydrogen potential of 430 mL H2/g VS was achieved with 7.2 mg/mL of xylose formation for a 168 h incubation period. The bio‐hydrogen production was carried out under optimized conditions of 80 g/L inoculum, pH 5 and 50 °C, and a maximum bio‐hydrogen potential of 494.26 mL H2/g VS was obtained. A cumulative bio‐hydrogen production of 450 mL was achieved with modified Gompertz model. The maximum chemical oxygen demand (COD) removal efficiency (93%) and maximum fermentative products (2182.60 mg COD/L) with total volatile fatty acids of 2032.82 mg COD/L were obtained when 120 and 80 g/L of inoculum were added to the reactor, respectively. Hence, enzymatic hydrolysis led to a marked improvement in the overall bio‐hydrogen yield of 400–500 mL H2/g VS suggesting the potential use of sunflower oil sludge for bio‐hydrogen production in a cost effective manner.

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Section: Effect Of Initial Ph On Both Bio-hydrogen and Enzyme Productionsupporting

confidence: 90%

Bio‐hydrogen Production By Enzymic Hydrolysis of Sunflower Oil Sludge

Sakthiselvan

Naveena

Gopinath³

et al. 2015

CLEAN Soil Air Water

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“…The higher production of short chain organic acids could also be possible at higher substrate concentrations. This could result in a drop of pH to a level that is not suitable for hydrogen production [52]. In the present study, it was found that the final pH of the fermentation broths tended to decrease when higher biomass concentrations were used (data not shown), which correlated with the production of organic acids shown in Figure 2.…”

Section: Methodsmentioning

confidence: 53%

Enhancing Hydrogen Production from Chlorella sp. Biomass by Pre-Hydrolysis with Simultaneous Saccharification and Fermentation (PSSF)

et al. 2019

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Simultaneous saccharification and fermentation (SSF) and pre-hydrolysis with SSF (PSSF) were used to produce hydrogen from the biomass of Chlorella sp. SSF was conducted using an enzyme mixture consisting of 80 filter paper unit (FPU) g-biomass−1 of cellulase, 92 U g-biomass−1 of amylase, and 120 U g-biomass−1 of glucoamylase at 35 °C for 108 h. This yielded 170 mL-H2 g-volatile-solids−1 (VS), with a productivity of 1.6 mL-H2 g-VS−1 h−1. Pre-hydrolyzing the biomass at 50 °C for 12 h resulted in the production of 1.8 g/L of reducing sugars, leading to a hydrogen yield (HY) of 172 mL-H2 g-VS−1. Using PSSF, the fermentation time was shortened by 36 h in which a productivity of 2.4 mL-H2 g-VS−1 h−1 was attained. To the best of our knowledge, the present study is the first report on the use of SSF and PSSF for hydrogen production from microalgal biomass, and the HY obtained in the study is by far the highest yield reported. Our results indicate that PSSF is a promising process for hydrogen production from microalgal biomass.

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“…Later, it was placed in a preheated oven at 100˝C for 30 min in order to deactivate hydrogenotrophic methanogens [22,23]. The volatile solids, volatile fatty acids, alkalinity and pH of the sludge were 2.87%, 13950 mg/L, 3700 mg/L and 7.1, respectively.…”

Section: Seeded Sludgementioning

confidence: 99%

Comparing the Bio-Hydrogen Production Potential of Pretreated Rice Straw Co-Digested with Seeded Sludge Using an Anaerobic Bioreactor under Mesophilic Thermophilic Conditions

et al. 2016

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Three common pretreatments (mechanical, steam explosion and chemical) used to enhance the biodegradability of rice straw were compared on the basis of bio-hydrogen production potential while co-digesting rice straw with sludge under mesophilic (37˝C) and thermophilic (55˝C) temperatures. The results showed that the solid state NaOH pretreatment returned the highest experimental reduction of LCH (lignin, cellulose and hemi-cellulose) content and bio-hydrogen production from rice straw. The increase in incubation temperature from 37˝C to 55˝C increased the bio-hydrogen yield, and the highest experimental yield of 60.6 mL/g VS removed was obtained under chemical pretreatment at 55˝C. The time required for maximum bio-hydrogen production was found on the basis of kinetic parameters as 36 h-47 h of incubation, which can be used as a hydraulic retention time for continuous bio-hydrogen production from rice straw. The optimum pH range of bio-hydrogen production was observed to be 6.7˘0.1-5.8˘0.1 and 7.1˘0.1-5.8˘0.1 under mesophilic and thermophilic conditions, respectively. The increase in temperature was found useful for controlling the volatile fatty acids (VFA) under mechanical and steam explosion pretreatments. The comparison of pretreatment methods under the same set of experimental conditions in the present study provided a baseline for future research in order to select an appropriate pretreatment method.

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Bio-Hydrogen Production from Pineapple Waste Extract by Anaerobic Mixed Cultures

Cited by 30 publications

References 36 publications

Bio‐hydrogen Production By Enzymic Hydrolysis of Sunflower Oil Sludge

Bio‐hydrogen Production By Enzymic Hydrolysis of Sunflower Oil Sludge

Enhancing Hydrogen Production from Chlorella sp. Biomass by Pre-Hydrolysis with Simultaneous Saccharification and Fermentation (PSSF)

Comparing the Bio-Hydrogen Production Potential of Pretreated Rice Straw Co-Digested with Seeded Sludge Using an Anaerobic Bioreactor under Mesophilic Thermophilic Conditions

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