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... Microbial proteases due to their enormous application potential in numerous biotechnological processes have gathered considerable research impetus during recent years. However, lack of process suitable characteristics viz. thermostability, wide range pH stability, resistance to inhibitors, among others, in most of the available proteases motivated the search for better and efficient proteases. Hig ...
... This study evaluated the amelioration of pressmud (PM) and bagasse (BG) wastes by the vermiremediation process. The wastes were spiked with cattle dung (CD) in different concentrations to find out the best proportion supporting maximum earthworm growth and nutrients availability. The highest growth rate was observed in PMBG50 (282.2mg/d/worm) feed mixture. Response surface design of earthworm grow ...
... This work estimated the energy consumption of three straw-collection systems: baling, forager and whole-plant harvest system in which the chopped cane and straw are separated at the mill. About 12 t ha⁻¹ yr⁻¹ of straw can be collected for a typical sugarcane yield of 100 t ha⁻¹ yr⁻¹. The system with the lowest energy consumption was whole-plant harvesting, which used 2.0 L of diesel fuel per tonne ...
anaerobic digestion; bagasse; biogas; case studies; cassava; energy; engineering; ferrous chloride; fertilizers; fish waste; issues and policy; managers; models; regression analysis; surveys; China
Abstract:
... Global interest in the conversion of organic biowaste to biomethane is increasing rapidly. As new projects are built, managers must ensure that biomethane engineering processes are operating efficiently. In China, increasing biogas energy output is an integral part of the central government’s 13th Five Year Plan. However, many biogas plants that convert various organic waste types to energy in Chi ...
Leopoldo J. Rios-González; Thelma K. Morales-Martínez; María F. Rodríguez-Flores; José A. Rodríguez-De la Garza; David Castillo-Quiroz; Agustín J. Castro-Montoya; Alfredo Martinez
... The aim of the present work was to assess the autohydrolysis pretreatment of Agave tequilana bagasse for ethanol production. The pretreatment was conducted using a one-liter high pressure Parr reactor under different severity factors (SF) at a 1:6w/v ratio (solid:liquid) and 200rpm. The solids obtained under the selected autohydrolysis conditions were subjected to enzymatic hydrolysis with a comme ...
... Bagasse activated carbon (AC) and the new type of activated carbon (KAC) prepared with reactivation method of ZnCl₂-KOH were modified with triethylenetetramine (TETA) and tetraethylenepentamine (TEPA). The as-modified adsorbents for CO₂ separation were investigated by thermal gravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), elemental analysis, N₂ adsorption–desorption, a ...
Acinetobacter; Aspergillus; Fusarium; Proteus; Pseudomonas; air; air flow; air pollution; bacteria; bagasse; biodegradation; biofilters; fungi; hydrazine; nonionic surfactants; polysorbates
Abstract:
... This study evaluated the efficiency of a laboratory scale biofilter packed with a mixture of scoria-bagasse-compost to treat unsymmetrical 1,1-dimethyl hydrazine (UDMH) from the air. Effect of different inlet loadings (0.44–2.68 gm−3h−1), various EBRTs (30, 60 and 90s), bed height, and non-ionic surfactants Tween 80 on biofilter efficiency were evaluated during a long-term period (126 days). The a ...
Monte Carlo method; bagasse; bioethanol; biomass; burning; cellulose; combustion; dewatering; electricity; electricity generation; energy requirements; equations; ethanol; ethanol production; fermentation; heat; hemicellulose; leaves; lignin; mass flow; straw; sugarcane; sugarcane tops
Abstract:
... The main objective of this work is to assess the impacts of integrating new biomass conversion technologies into an existing sugarcane industrial processing plant in terms of its multi-objective optimal operating conditions. A typical sugarcane mill is identified and a second generation ethanol production pathway is incorporated to give the operator the possibility of controlling the ratio between ...
... Bostrycin, a red antibacterial agent produced by Nigrospora sp. no. 407, is considered for meat processing. To optimize production, the culture conditions of submerged fermentation (SmF) and solid-state fermentation (SSF) were investigated. The optimal SmF conditions were a medium containing 1.0% cane molasses and incubation at 30 °C and 150 rpm for 6 days. In SSF, other than bostrycin, less pigme ...
... In the present study, the effects of derivatives of cassava, maltodextrin and bagasse, on the physicochemical, physical and sensory properties of ice creams were investigated. The content of cassava maltodextrin increased significantly the content of carbohydrate and total soluble solids and decreased lipids content. The effect of cassava bagasse was more pronounced than the maltodextrin on physic ...
Arenga pinnata; absorption; bagasse; cassava; cassava starch; composite materials; crystal structure; films (materials); fructose; plasticizers; scanning electron microscopy; starch; thermal properties; water content; water solubility
Abstract:
... A hybrid composite was prepared from cassava bagasse (CB) and sugar palm fiber (SPF) using casting technique with cassava starch (CS) as matrix and fructose as a plasticizer. Different loadings of SPF (2, 4, 6 and 8% w/w of dry starch) were added to the CS/CB composite film containing 6% CB. The addition of SPF significantly influenced the physical properties. It increased the thickness while decr ...
María del Carmen Cuevas-Díaz; Ángeles Martínez-Toledo; Oswaldo Guzmán-López; Cinthya P. Torres-López; Areli del C. Ortega-Martínez; Lizbeth J. Hermida-Mendoza
... Microbiological activities are essential in the bioremediation of polluted soils. The enzymatic activities of microorganisms are usually used as a biological indicator of soil health. The aim of this work was to observe the catalase, acid phosphatase (AcP), and alkaline phosphatase (AlP) activities in soil that was amended with agro-industrial by-products and macronutrients during the process of t ...
Pinus; activated carbon; bagasse; biomass; catalysts; cellulose; liquids; mass spectrometry; phosphoric acid; pyrolysis; pyrolysis gas chromatography; recycling; wood
Abstract:
... Activated carbon (AC) prepared by chemical activation with H₃PO₄ (named AC-P) was employed for catalytic fast pyrolysis of cellulose and biomass to selectively produce levoglucosenone (LGO). The catalytic pyrolysis behaviors and product distributions were revealed via both analytical pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) and lab-scale experiments. Moreover, the performance of A ...
Manihot esculenta; X-ray diffraction; bagasse; cassava; desorption; drying; equilibrium moisture content; models; protein content; roots; scanning electron microscopy; starch; temperature; water activity
Abstract:
... Cassava bagasse is a semisolid material resulting from the extraction of native starch. It represents up to 30% w/w of the original roots used in this process. The equilibrium moisture content (Xe) is an important factor in the drying process of materials that is studied using desorption isotherms. The objectives of this study were to characterize the cassava bagasse obtained from an industrial pr ...
... This study was undertaken to isolate and characterize three carbohydrate-rich fractions: Hemicellulose A (Hemi. A), Hemicellulose B (Hemi. B) and cellulose-rich residue (CRF) from sorghum bran (SBR), sorghum bagasse (SBA) and sorghum biomass (SBI). The monosaccharide composition of the Hemi. A and Hemi. B fractions was determined, indicating that SBR has a highly branched structure. The analysis o ...
... Biofuel production is popular with biotechnologists due to the continuously increasing need for energy. One major issue is to get maximum fuel production for minimum cost. In our studies we focused on both factors and developed a method for bioethanol production by investing in low cost chemicals. We compared three chemical pretreatments (NaOH, Na₂SO₃ and H₂O₂) at 121°C temperature and 15 psi pres ...
bagasse; cellulose; composite materials; data analysis; films (materials); lignin; mechanical properties; sugar beet; xylan
Abstract:
... In our study we used holocelluloses from sugar beet and bagasse for film preparation. Films from sugar beet holocellulose have better mechanical properties than from bagasse holocellulose. By subsequent carboxymethylation of bagasse holocellulose, films with better properties were produced. Specimens prepared from combined sugar beet and bagasse carboxymethylated holocellulose had the best mechani ...
bagasse; burning; coffee (beverage); compression strength; construction materials; electricity; industrial wastes; scanning electron microscopy; slags; sodium hydroxide; sugarcane
Abstract:
... Spent coffee grounds (CG) is a beverage waste derived from the drinking coffee. Bagasse ash (BA) is the residue obtained from the burning of sugarcane for electricity. This paper aims to create and assess the feasibility of a recycled construction material formed by binding CG with a BA geopolymer, through the alkaline activation of BA using sodium hydroxide (NaOH). Slag (S), an industrial waste, ...
... Although the area of biomass pretreatment has been improved in the last decades, there are challenges regarding the process scale up, the development of continuous processes and the formation of biomass conversion inhibitors. An option to circumvent these shortcomings would be the use of extrusion for biomass pretreatment. This study evaluated the pretreatment of sugarcane biomass in a twin-screw ...
Aureobasidium pullulans; agitation; bagasse; cassava; fermenters; leaching; pH; pullulan; solid state fermentation; solvents; temperature
Abstract:
... Solid-liquid extraction (leaching) is an important downstream processing step for the recovery of pullulan from solid state fermentation. In this study, pullulan was produced in a laboratory scale solid state fermentor (working volume 1.9L) by Aureobasidium pullulans using cassava bagasse and Asian palm kernel as solid substrates. Pullulan was recovered from the substrate after fermentation by sol ...
... Sweet sorghum bagasse is an untapped resourceful carbon-rich material that can be thermochemically converted into value-added biochars. These biochars can be applied to the field as soil amendment for soil health enhancement, improved soil carbon content, water holding capacity, soil drainage and aeration, and plant and sugar yields. This study looked at four different varieties of sweet sorghum a ...
... Correction for ‘Methane production enhancement from products of alkaline hydrogen peroxide pretreated sweet sorghum bagasse’ by Weixing Cao et al., RSC Adv., 2017, 7, 5701–5707. ...
... The exact quantification of all carbohydrate constituents in wood and pulp is a challenge because of the various glycosidic linkages of the polysaccharides with different stabilities. The individual detector responses for the compounds in the hydrolysates additionally complicate the quantification as pure standards for 4-O-methyl-α-D-glucuronic acid (meGlcA) and related oligosaccharides are not co ...
... This work aimed to study the use of consolidated bioprocess (CBP) yeast expressing five cellulase genes (BGL, XYNII, EGII, CBHI and CBHII) for ethanol production from ionic liquid-pretreated bagasse and Laubholz unbleached Kraft pulp (LUKP). A proposed screening method shows that the optimal cellulase ratio varies for each biomass substrate, and thus it is essential to breed CBP yeast having optim ...
... In this study groundnut shells and bagasse briquettes from agricultural wastes were developed with cassava and wheat starch binders using low pressure and high pressure techniques. In the low pressure technique, briquettes were produced after carbonization of groundnut shells and bagasse. The resulting bio-char was mixed with 30, 50, 70 and 90 g of cassava and wheat flour starch binder for each 10 ...
... Among the many types of lignocellulosic biomass pretreatment methods, the use of ionic liquids (ILs) is regarded as one of the most promising strategies. In this study, the effects of four kinds of ILs for pretreatment of lignocellulosic biomass such as bagasse, eucalyptus, and cedar were evaluated. In direct ethanol fermentation from biomass incorporated with ILs by cellulase-displaying yeast, 1- ...
... In this work different biorefinery scenarios were investigated, concerning the co-production of bioethanol and electricity from available lignocellulose at a typical sugar mill, as possible extensions to the current combustion of bagasse for steam and electricity production and burning trash on-filed. In scenario 1, the whole bagasse and brown leaves is utilized in a biorefinery and coal is burnt ...
... The present research was undertaken to explore the influence of dried cassava bagasse (F), carboxyl methyl cellulose (CMC) and tara gum on the quality characteristics of composite wheat bread. F was used to replace wheat flour at 5 and 10% substitution levels. Dried cassava bagasse‐enriched wheat breads with CMC and CMC/tara gum binary blend (50:50 w/w) were analyzed to determine the specific volu ...
... In this research, the effects of culture substrates on taste component content of Lentinula edodes were studied, and the resulting taste quality of L. edodes was evaluated. The results revealed that single‐carbon and single‐nitrogen sources were beneficial to production of soluble sugars and polyols, organic acids and sweet amino acids, whereas a single‐carbon source was beneficial to essential am ...
anaerobic digestion; bagasse; biogas; environmental technology; fish waste; inoculum; methane
Abstract:
... To overcome the biogas inhibition in anaerobic digestion of fish waste (FW), effects of inoculum to substrate ratio (I/S, based on VS) and co-digestion with bagasse on biogas production of FW were studied in batch reactors. I/S value was from 0.95 to 2.55, bagasse content in co-digestion (based on VS) was 25%, 50% and 75%. The highest biogas yield (433.4 mL/gVS) with 73.34% methane content was obt ...
... A highly efficient hydrolytic method using an acidic ionic liquid is proposed: pretreatment of biomass with H₂SO₄; simple in situ synthesis of an acidic ionic liquid, 1-(1-butylsulfonic)-3-methylimidazolium hydrosulfate ([(HSO₃)⁴C₄C₁im]HSO₄), through addition of a zwitterion to the pretreated solution; and subsequent hydrolysis in the [(HSO₃)⁴C₄C₁im]HSO₄ solution at 100 °C under microwave heating. ...
... Acetone–butanol–ethanol (ABE) production from grains, bagasse, and juice of sweet sorghum was conducted by Clostridium acetobutylicum. Delignification with acetone, one of the ABE fermentation products, was evaluated as a pretreatment for the improvement of ABE production from bagasse. Different modes of hydrolysis and fermentation of “separate hydrolysis and fermentation (SHF)” (process I), “simu ...
... Traditional solid-state biogas production from lignocellulosic biomass has some issues such as relatively low methane yield, instability of fermentation system, etc., and these might be solved by changing solid-state mode to completely liquid-state mode using lignocellulosic hydrolysates as substrate for biogas production. However, the potential and possibility of this new technology for industria ...
Arundo donax; bagasse; bananas; biomass; chemical composition; energy efficiency; energy recovery; energy requirements; feedstocks; forage; lignocellulose; liquefaction; oils; pineapples; solvents; stems; temperature
Abstract:
... Thermal liquefaction of five potential feedstocks namely, banana bunch stems (BBS), pineapple tops (PT), Forage sorghum (FS), bagasse (Ba) and Arundo donax (AD) were examined from an energy perspective at a large laboratory scale. Comparison of oil yield and higher heating value (HHV) of feedstock and bio-crude at this scale enabled analysis of the energy efficiency of the liquefaction of feedstoc ...
... In the present study, solid-state fermentation for the production of raw starch degrading enzyme was investigated by thermotolerant Rhizopus microsporus TISTR 3531 using a combination of agro-industrial wastes as substrates. The obtained crude enzyme was applied for hydrolysis of raw cassava starch and chips at low temperature and subjected to nonsterile ethanol production using raw cassava chips. ...
... The presence of sulfamethoxazole (SMX) in the environment is becoming a serious problem because of its toxicity and high risk to human health and microbial activity. In this study, enhanced degradation of this compound in soil is shown by sulfamethoxazole-degrading microbes when using bagasse to pre-grow these microbial sources. The two sulfamethoxazole-degrading strains, T2 and Z3, isolated from ...
... The objective of this work was to study the increase in multiple lignolytic enzyme productions through the use of supplements in combination in pretreatment of sweet sorghum bagasse (SSB) by Coriolus versicolor such that enzymes act synergistically to maximize the lignin degradation and selectivity. Enzyme activities were enhanced by metallic salts and phenolic compound supplements in SSF. Supplem ...
... BACKGROUND: Bagasse, a kind of agricultural residue having high sugar content, has been considered a promising feedstock to produce bio‐ethanol. However, the natural structure of bagasse makes it difficult to use this material to produce bio‐ethanol directly. Efficient pretreatment is necessary to break down the natural sealed structure of bagasse and sequential enzymatic hydrolysis can release ma ...
... PURPOSE: The goal of this study is to identify which processes contribute most to fuel CO₂e emissions, energy use, and employment generation when driving a typical Brazilian flex fuel vehicle (FFV) model with bagasse-derived ethanol. A hybrid life cycle assessment (LCA) is used to report the associated impacts and a structural path analysis (SPA) is utilized to identify, quantify, and rank the hig ...
X-ray photoelectron spectroscopy; bagasse; carbon; carbonization; catalysts; catalytic activity; glucose; molybdenum; nanoparticles; olefin; oxidants; oxidation; scanning electron microscopy; synthesis; temperature
Abstract:
... A one-pot synthesis of molybdenum oxide nanoparticles (NPs) supported on bioderived carbon microspheres is reported. The catalyst was synthesized by the low temperature hydrothermal (LTH) method using d-glucose and bagasse as the carbon source. The carbonization of bagasse resulted in the formation of nonuniform carbon microspheres while glucose resulted in uniform carbon spheres. SEM and STEM ele ...
... The present study focused on investigating the catalytic mechanism of metal salts (sodium hypophosphite, sodium bisulfate and ammonium ferric sulfate) for esterification of bagasse cellulose carried out by mechanical activation-assisted solid phase reaction in a stirring ball mill. FTIR analysis of the products confirmed that these metal salts could catalyze the esterification of cellulose. XRD, S ...
... In this study, comparative evaluation of acid- and alkali pretreatment of sweet sorghum bagasse (SSB) was carried out for sugar production after enzymatic hydrolysis. Results indicated that enzymatic hydrolysis of alkali-pretreated SSB resulted in higher production of glucose, xylose and arabinose, compared to the other alkali concentrations and also acid-pretreated biomass. Response Surface Metho ...
... Energy cane is considered an ideal energy crop because it produces readily fermentable sugars and high yields of lignocellulosic biomass. Four improved clones of the energy cane series “TByEFC” (Tiphuyae and Banyang Energy and Forage-cane Clone), which was developed at the Kasetsart University Kamphaeng Saen campus in Thailand, were evaluated in terms of their potential ethanol yields from both su ...
... In Pakistan, mango nurseries are currently located in the traditional way, in the soil under trees in mango orchards. This method is responsible for the young plants being contaminated with many of the diseases present on mature trees. To produce clean and healthy plants, Pakistani mango nurseries must change their practices to isolate the nurseries from orchards and use clean potting media. In th ...
... Biodiesel production in the U.S. from vegetable oils has increased substantially during the past decade. However, its further increase is limited by the low amounts of oil produced per hectare from temperate oilseed crops. Recently novel transgenic sugarcane has been developed to accumulate both sugars and lipids in stems, making it a promising dual-purpose feedstock to produce both ethanol and bi ...
Fourier transform infrared spectroscopy; bagasse; biorefining; bleaching; chemical composition; chlorine dioxide; gas chromatography-mass spectrometry; hemicellulose; lignin; nuclear magnetic resonance spectroscopy; pH; paper pulp; raw materials
Abstract:
... To study the influence of the content of hemicellulose on the absorbable organic halogen (AOX) formation in chlorine dioxide bleaching, a pH pre-corrected hot water pretreatment was developed. The influence of lignin on AOX formation was eliminated by the control of hot water extraction time, AOX formation was decreased by 33.27% under optimal hot water extraction conditions. The chemical composit ...
... This paper presents a new approach for converting lignocelluloses biomass into regenerated cellulose fibers. A major research objective is to examine the effectiveness of nanoparticles as cellulose fillers on improving thermal and mechanical properties of the regenerated cellulose fibers. Pure wood and bagasse cellulose solutions and cellulose/nanoparticle composite solutions were prepared using N ...
... Lignocellulosic biomass can be used as an alternative for the production of fuels and chemical feedstocks using thermochemical conversion processes, such as pyrolysis. This study aims to perform the fast pyrolysis of sweet sorghum bagasse in a fluidized bed unit, comparing the results obtained with the products from analytical pyrolysis. Furthermore, the apparent activation energy of thermal decom ...
... Corn stover bagasse hydrolysate was used as the substrate for fed-batch acetone-butanol-ethanol (ABE) fermentation and in situ product removal by intermittent gas stripping. The mutant strain Clostridium acetobutylicum ABE-P 1201 was inoculated for ABE production. As results, a final cumulative butanol concentration of 18.6g/L (total ABE: 28.3g/L) was produced from 97.6g/L of total fermentable sug ...
... In this study, ferulic acid – a natural phenolic acid present in bagasse, wheat and rice brans, and beetroot pulp – was used as renewable starting material to prepare new biobased epoxy precursors. This biobased building block was first esterified then reduced to provide ethyl dihydroferulate which was then trans-esterified/amidified with biobased diols, triol and diamines. Immobilized Candida ant ...