Recruitment of long short-term memory for envisaging the higher heating value of valorized lignocellulosic solid biofuel: A new approach

Al-Sadek, Ahmed Farouk; Gad, Beshoy K.; Nassar, Hussein N.

doi:10.1080/15567036.2021.2007179

Cited by 4 publications

(3 citation statements)

References 46 publications

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“…The nutritional composition (Table 1) depicts green Ulva faciata with considerably high protein, fiber, carbohydrate, and lipid contents, with moderate concentrations of minerals (Table 5), suggesting its applicability in the food industry and as animal feed, besides its medicinal application as a food supplement and as a source of multivitamins. According to the obtained proximate analysis data of the collected Ulva fasciata (Table 2) and the considerable recorded calorific value of 15.19 MJ/kg (Table 2), which is comparable to those derived from lignocellulosic biomass [48], thus it can be used as a solid biofuel. The collected Ulva faciata depicted high contents of cellulose and hemicellulose and low lignin content (Table 3), suggesting its application as a feedstock for bioethanol and biobutanol production.…”

Section: Physicochemical Characterization Of the Collected Ulva Fasciatamentioning

confidence: 51%

A Fully Integrated Biorefinery Process for the Valorization of Ulva fasciata into Different Green and Sustainable Value-Added Products

et al. 2023

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In the framework of a sustainable marine bioeconomy, the present work describes an advanced, eco-friendly, fully integrated biorefinery process for marine Ulva fasciata macroalgae. That would serve as a solution for ecosystem bioremediation, an effective utilization of marine macroalgal resources, and a new initiative to promote a green and low-carbon economy. Ulva fasciata biomass can be utilized as an organic fertilizer with total N, P2O5, and K2O contents of 3.17% and a C/N ratio of 11.71. It can also be used as a solid biofuel with a sufficient calorific value of 15.19 MJ/kg. It has high carbohydrate content and low lignin content of approximately 44.85% and 1.5%, respectively, which recommend its applicability in bioethanol and biobutanol production. Its protein, fiber, lipid, and ash contents of approximately 13.13%, 9.9%, 3.27%, and 21%, respectively with relatively high concentrations of omega-3 fatty acids (n-3 PUFAs) and omega-9 fatty acids (n-9 MUFAs) and relatively low omega-6 fatty acids (n-6 PUFAs) and a n-6/n-3 ratio of 0.13 also recommend its applicability as food additives and animal feeders. Moreover, the suggested sequential zero-waste biomass residue process yielded 34.89% mineral-rich water extract (MRWE), 2.61% chlorophylla,b, 0.41% carotenoids, 12.55% starch, 3.27% lipids, 22.24% ulvan, 13.37% proteins, and 10.66% cellulose of Ulva fasciata dry weight. The efficient biocidal activity of extracted ulvan against pathogenic microorganisms and sulfate-reducing bacteria recommends its application for medical purposes, water densification, and mitigation of microbially induced corrosion in the oil and gas industry.

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Section: Physicochemical Characterization Of the Collected Ulva Fasciatamentioning

confidence: 51%

A Fully Integrated Biorefinery Process for the Valorization of Ulva fasciata into Different Green and Sustainable Value-Added Products

et al. 2023

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“…Te proximate analysis of rice straw before and after hydrolysis depicted considerable calorifc values (CV) of approximately 15.8 MJ/kg and 16.05 MJ/kg, respectively (Table 9). Tis is comparable to those derived from lignocellulosic straw [90], thus it can be used as a solid biofuel. It was also noticed that the CV slightly increased after the fungal hydrolysis (Table 9).…”

Section: Full Characterization Of Rice Straw Before and After Fungalmentioning

confidence: 88%

“…It was also noticed that the CV slightly increased after the fungal hydrolysis (Table 9). Tis might be related to the recorded increase in the fxed carbon content with the concomitant decrease in the ash content after the fungal hydrolysis process [90]. It is well recognized that a sample's ash content indicates its mineral richness [91].…”

Section: Full Characterization Of Rice Straw Before and After Fungalmentioning

confidence: 99%

A Study on the Valorization of Rice Straw into Different Value-Added Products and Biofuels

Ali,

Hosny,

Nassar

et al. 2024

International Journal of Chemical Engineering

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This work depicts that rice straw (RS), which is one of the major lignocellulosic wastes all over the world and causing many environmental problems, has considerable amounts of protein, ash, macronutrients, and micronutrients of approximately 11.38%, 16.77%, 2.27 mg/kg, and 771.9 mg/kg, respectively; besides, a C/N ratio of 15.18, a total N, P2O5, and K2O content of 1.85%, and a considerably low concentration of undesirable heavy metals and silica of approximately 77.69 mg/kg and 109 mg/kg are also present, which recommends its applicability as a precursor feedstock for the production of organic fertilizer and animal fodder. The batch solid-state fermentation (SSF) of RS by Trichoderma longibrachiatum DSMZ 16517 produced considerable amount of total reducing sugars (TRS) of approximately 339.2 mg TRS/g RS under the optimum operatic conditions of 20% (w:v) substrate concentration, pH 7, 1% inoculum size, a 9-day incubation period, and 30°C incubation temperature. The readily available and cost-effective agroindustrial waste, sugarcane molasses, proved to enhance the fungal biomass growth and (hemi) cellulolytic enzymes activities. The inoculated RS-SSF batch process with T. longibrachiatum precultured on 10% molasses enhanced the (hemi) cellulolytic enzymatic activities and TRS production rate by approximately 5.82 and 3.8 folds, respectively, relative to that inoculated by T. longibrachiatum precultured in the conventional potato dextrose broth medium. The separate hydrolysis and fermentation processes by different yeast strains Candida tropicalis DSM 70156, C. shehatae ATCC 58779, and Saccharomyces cerevisiae ATCC 64712 revealed an efficient bioethanol yield and productivity that ranged between 0.36 and 0.38 g/g sugars and 0.22 and 0.23 g/L/h, respectively, with concomitant competent fermentation efficiencies that ranged between 48.35% and 51.25%. The proximate analysis of rice straw before and after fungal hydrolysis proved calorific values of approximately 15.8 MJ/kg and 16.05 MJ/kg, respectively, recommending their applicability as primary and secondary solid biofuels. Thus, this study proved the waste prosperity of RS for environmental opulence and sustainability.

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para-Nitrophenol nano-biodegradation using Turbinaria triquetra-synthesized magnetic nanoparticles-coated novel bacteria: a sustainable approach for refinery wastewater treatment

Nassar,

Abd El Salam,

Al-Sadek

et al. 2024

Int. J. Environ. Sci. Technol.

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Recruitment of long short-term memory for envisaging the higher heating value of valorized lignocellulosic solid biofuel: A new approach

Cited by 4 publications

References 46 publications

A Fully Integrated Biorefinery Process for the Valorization of Ulva fasciata into Different Green and Sustainable Value-Added Products

A Fully Integrated Biorefinery Process for the Valorization of Ulva fasciata into Different Green and Sustainable Value-Added Products

A Study on the Valorization of Rice Straw into Different Value-Added Products and Biofuels

para-Nitrophenol nano-biodegradation using Turbinaria triquetra-synthesized magnetic nanoparticles-coated novel bacteria: a sustainable approach for refinery wastewater treatment

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