Assessment of holocellulose for the production of bioethanol by conserving Pinus radiata cones as renewable feedstock

Victor, Amudhavalli; Pulidindi, Indra Neel; Gedanken, Aharon

doi:10.1016/j.jenvman.2015.07.038

Cited by 15 publications

(6 citation statements)

References 49 publications

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“…Fine details of the chemical nature of the hydrolyzate could be deduced from the 13 C NMR spectra. Judicious interpretation and distinct identification of individual monosaccharides, such as xylose and glucose, which are usually generated from biomass hydrolysis, could be possible using 13 C NMR analysis . In addition, the degradation products of sugars, such as levulinic and formic acids, if any, present in the hydrolyzate could also be identified from their fingerprint signals using this analytical tool …”

Section: Results and Discussionmentioning

confidence: 99%

Evaluation of the Potential of Chlorella vulgaris for Bioethanol Production

Kumar¹,

Pulidindi²,

Kinel-Tahan³

et al. 2016

Energy Fuels

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For bioethanol to be a sustainable transportation fuel, appropriate feedstock needs to be established. The focus of the current work is to evaluate if the microalga Chlorella vulgaris could be the feedstock of choice. Exclusive formation of glucose was observed upon the acid (HCl) hydrolysis of C. vulgaris. Microwave irradiation as well as hydrothermal reaction were employed as heating methods. Under optimal hydrolysis conditions using microwave irradiation (100 °C, 1 M HCl, and 10 min), the glucose yield was 20 ± 3.5 wt % compared to 23 ± 4 wt % under the optimal hydrothermal reaction conditions (120 °C, 1 M HCl, and 60 min). The hydrothermal-based hydrolysis process was further scaled up from a 0.2 g batch to a 2.0 g batch, and the glucose obtained was converted to bioethanol in a fermentation process at 30 °C for 28 h using Saccharomyces cerevisiae. An ethanol yield as high as 13.2 ± 0.5 wt % was obtained from C. vulgaris.

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Section: Results and Discussionmentioning

confidence: 99%

Evaluation of the Potential of Chlorella vulgaris for Bioethanol Production

Kumar¹,

Pulidindi²,

Kinel-Tahan³

et al. 2016

Energy Fuels

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“…The alternative fuel must be technically feasible, economically competitive, environmentally acceptable, and readily available [5] . Numerous potential alternative fuels have been proposed, including bioethanol, biodiesel, methanol, hydrogen, boron, natural gas, liquefied petroleum gas (LPG), Fischer–Tropsch fuel, p-series, electricity, and solar fuels [6] . Biofuel is those which include bioethanol, vegetable oils, biodiesel, biogas, biosynthetic gas (bio-syngas), bio-oil, biochar, Fischer–Tropsch liquids, and biohydrogen offers many advantages over petroleum-based fuels [7] .…”

Section: Methods Overviewmentioning

confidence: 99%

Chemically synthesized biofuels from agricultural waste: Optimization operating parameters with surface response methodology (CCD)

Berhe

Sahu

2017

MethodsX

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“…The pretreated (SSA-hot water & SSA-H 2 SO 4 ) rice straw is subjected to hydrolysis in a modied domestic microwave oven (MDMWO, 2.45 GHz, 1100 W at 100% power), 28 commercial microwave oven (MARS, CEM), 29 and a hydrothermal reactor (cylindrical stainless steel reactor lined inside with poly tetra uoro ethylene to resist corrosion by the acid catalyst). 30 The biomass hydrolysis reaction is carried out using either conventional mineral acid (HCl, 3 M) or the solid acid catalyst (activated carbon supported tungstophosphoric acid, 40 wt% HPW/AC), under identical reaction conditions.…”

Section: Hydrolysis Of Pretreated Rice Strawmentioning

confidence: 99%

“…NMR ( 1 H and 13 C) is a potential analytical tool for studying the biomass hydrolysis process, especially, the reaction products and by-products. 29 Usually, hydroxy methyl furfural (HMF), levulinic acid and formic acid are the byproducts that are formed during the conversion of biomass to glucose and these molecules could be easily identied using NMR analysis. 23 The 13 C NMR spectra of the hydrolyzate indicated the presence of both glucose and xylose (Fig.…”

Section: Delignication Of Rice Strawmentioning

confidence: 99%

“…Assignment of the signals to respective carbon nuclei of a monosaccharide was based on our previous studies. 23,29 The unreacted biomass separated from the hydrolyzate through ltration was again subjected to hydrolysis using HCl in a MDMWO for 5 more minutes. A biomass conversion value of 30.4 wt% and the hydrolyzate contained both xylose and glucose (Fig.…”

Section: Delignication Of Rice Strawmentioning

confidence: 99%

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