Abstract：
:The aim of this work was to develop a new production, recovery and formulation process of gibberellic acid (GA3). Low-cost byproducts - citrus pulp (CP) and soybean hulls (SH) - were employed as substrate for GA3 production by Gibberella fujikuroi in semisolid fermentation. A CP/SH mixture (70%/30%) promoted high productivities both in bubble column reactor (1.66 mg L/h), and in stirred tank reactor (2.13 mg L/h). GA3 production medium cost (US$ 6.70/m3) was reduced by 85% when compared to previously reported synthetic media (US$ 44.96/m3). It was described that GA3 fermented extract has low stability, and that liquid and powder formulation of the fermented extract maintained the biomolecule activity over 6 months. Alginate and alginate/kefiran beads containing GA3 showed encapsulation efficiency of 70% and 60%, respectively. This work supports good perspectives for GA3 production using cheap substrates and simple formulation of clarified extract to favour its use in agricultural countries.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Camara MC,Vandenberghe LPS,Sextos GC,Tanobe VOA,Magalhães Junior AI,Soccol CRdoi
10.1016/j.biortech.2020.123295subject
Has Abstractpub_date
2020-08-01 00:00:00pages
123295eissn
0960-8524issn
1873-2976pii
S0960-8524(20)30567-8journal_volume
309pub_type
杂志文章abstract：:Chlorella vulgaris ESP-31 containing 22.7% lipid was harvested by coagulation (using chitosan and polyaluminium chloride (PACl) as the coagulants) and centrifugation. The harvested ESP-31 was directly employed as the oil source for biodiesel production via transesterification catalyzed by immobilized Burkholderia lipa...
journal_title：Bioresource technology
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abstract：:In this study, a novel method was proposed for the biological pretreatment of macroalgae (Laminaria japonica, Pachymeniopsis elliptica, and Enteromorpha crinita) for production of volatile fatty acid (VFA) by anaerobic fermentation. The amount of VFA produced from 40 g/L of L. japonica increased from 8.3 g/L (control)...
journal_title：Bioresource technology
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abstract：:The inhibition pattern was identified for a reaction system composed of Trichoderma reesei cellulase enzyme complex and lime-pretreated corn stover. Also, the glucose inhibition effect was quantified for the aforementioned reaction system over a range of enzyme loadings and substrate concentrations. Lastly, the range ...
journal_title：Bioresource technology
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abstract：:Membrane fouling (especially biofouling) as a critical issue during membrane reactor (MBR) operation has attracted much attention in recent years. Although previous review papers have presented different aspects of MBR's fouling when treating various wastewaters, the information related to biofouling in MBRs has only ...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
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abstract：:The potential of rice husks and straw as adsorbents after being processed by subcritical water hydrolysis (SWH) was investigated. The influences of temperature (453, 493 and 533 K) and liquid/solid ratio (7.5 and 15 g water/g biomass) on the rice straw and rice husks characteristics and on the adsorption capacity of 2...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.03.110
更新日期：2019-07-01 00:00:00
abstract：:To investigate the effects of aeration on hydrogen-producing granular system, experiments were performed in two laboratory-scale anaerobic internal circulation hydrogen production (AICHP) reactors. The preliminary experiment of Reactor 1 showed that direct aeration was beneficial to enhancing hydrogen production. Afte...
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pub_type： 杂志文章
doi：10.1016/j.biortech.2016.11.096
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abstract：:Cellulose nanocrystals (CNC) were prepared from microcrystalline cellulose (MCC) by hydrolysis with cation exchange resin (NKC-9) or 64% sulfuric acid. The cation exchange resin hydrolysis parameters were optimized by using the Box-Behnken design and response surface methodology. An optimum yield (50.04%) was achieved...
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pub_type： 杂志文章
doi：10.1016/j.biortech.2011.09.070
更新日期：2011-12-01 00:00:00
abstract：:Organic compounds such as methanol are widely used for enhancing denitrification at wastewater treatment plants (WWTPs) to meet effluent water quality permits. On the other hand, methane, which is the main feedstock for industrial methanol production, is also generated during anaerobic digestion in WWTPs, but is often...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.01.092
更新日期：2019-05-01 00:00:00
abstract：:An intracellular glutaminase-free L-asparaginase from Pectobacterium carotovorum MTCC 1428 was isolated to apparent homogeneity. The homotetramer enzyme has a molecular mass of 144.4 kDa (MALDI-TOF MS) and an isoelectric point of approximately 8.4. The enzyme is very specific for its natural substrate, L-asparagine. T...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.07.114
更新日期：2011-01-01 00:00:00
abstract：:This article describes the use of a cationized starch-based material as new ion-exchanger adsorbent for the removal of C.I. Acid Blue 25 (AB 25) from aqueous solutions. Batch adsorption studies concerning the effects of contact time, pH and temperature are presented and discussed. Adsorption experimental data showed t...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2008.02.011
更新日期：2008-11-01 00:00:00
abstract：:A novel method for energy recycling from sewage sludge was developed through biophysical drying coupled with fast pyrolysis. Thermal decomposition properties of biophysical-dried sludge (BDS) and thermal-dried sludge (TDS) were characterized through thermogravimetric (TG) coupled with mass spectrometry (MS) analysis. ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.08.071
更新日期：2015-12-01 00:00:00
abstract：:Purified peroxidase from turnip (Brassica napus L. var. esculenta D.C.) was immobilized by entrapment in spheres of calcium alginate and by covalent binding to Affi-Gel 10. Both immobilized Turnip peroxidase (TP) preparations were assayed for the detoxification of a synthetic phenolic solution and a real wastewater ef...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2008.04.031
更新日期：2008-12-01 00:00:00
abstract：:The aim of this study was to compare the bacterial structure of seven different composts. The primary environmental factors affecting bacterial species were identified, and a strategy to enhance the abundance of uncultured bacteria through controlling relevant environmental parameters was proposed. The results showed ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.09.041
更新日期：2015-12-01 00:00:00
abstract：:Anaerobic digestion of primary sludge with different additives, namely nano magnetite, graphite powder, activated carbon powder and NiCl2/CoCl2, were evaluated by biomethane potential tests, kinetics modelling and microbial community analysis. Specific methane yields increased from 136 mL/g VS for primary sludge to 14...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.123970
更新日期：2020-11-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.12.018
更新日期：2014-02-01 00:00:00
abstract：:The aim of this work was to investigate ultrasound (US)-assisted green solvent extraction of valuable compounds from the microalgae Nannochloropsis spp. Individual green solvents (water, ethanol (EtOH), dimethyl sulfoxide (DMSO)) and binary mixture of solvents (water-DMSO and water-EtOH) were used for the extraction p...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.09.020
更新日期：2015-12-01 00:00:00
abstract：:The major operational problem associated with membrane bioreactors (MBR) is membrane fouling, for which extracellular polymeric substances (EPS) are primarily responsible. In this work both the soluble and bound EPS (i.e. SMP and EPS) produced in an MBR system operating under sludge retention times (SRT) of 10, 15, 20...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.01.053
更新日期：2009-07-01 00:00:00
abstract：:In addition to approximately 20% ash, shrimp processing by-products contain 64% protein and chitin, both of which can be used to generate several valuable products. Chitin and chitosan production is currently based on several crustacean wastes, and at the present time the protein fraction is not being used. This paper...
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更新日期：2006-09-01 00:00:00
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pub_type： 杂志文章
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更新日期：2015-12-01 00:00:00
abstract：:The influence of introduction of cyanuric chloride on glucose's yield (Y) in acid-catalyzed hydrolysis of microcrystalline cellulose (MCC) has been studied. The content of cyanuric chloride (C) in modified MCCs was determined by X-ray photoelectric spectroscopy. The chemical structures of modified MCCs were analyzed b...
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更新日期：2011-01-01 00:00:00
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pub_type： 杂志文章
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更新日期：2015-12-01 00:00:00
abstract：:Transition metal phosphide catalysts such as nickel phosphide (Ni2P) have shown excellent activities for the hydrogen evolution reaction, but they have primarily been studied in strongly acidic or alkaline electrolytes. In microbial electrolysis cells (MECs), however, the electrolyte is usually a neutral pH to support...
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更新日期：2019-12-01 00:00:00
abstract：:Wastewater treatment by duckweed is a naturally sustainable technology. However, its development is limited due to the lack of a follow-up treatment of duckweed. The duckweed was proposed for the treatment of rural domestic wastewater and agricultural wastewater, and it was further processed to produce bio-oil via hyd...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.124033
更新日期：2020-12-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.01.040
更新日期：2009-06-01 00:00:00
abstract：:Glycerol conversion was conducted in hot-compressed water (HCW: 573-673 K, 25-34.5 MPa) using a batch and a flow apparatus and the influences of temperature, H(2)SO(4), glycerol concentration, and pressure, were examined. The yield of acrolein was enhanced by higher glycerol and H(2)SO(4) concentration, and higher pre...
journal_title：Bioresource technology
pub_type： 杂志文章
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更新日期：2007-04-01 00:00:00
abstract：:Internal resistance is one of the limiting factors for power production in microbial fuel cells (MFC). To overcome this, current study designed polyaniline functionalized activated carbon (PANi-FAC) composite as capacitive anode with strategic electrocatalytic capability, and was comparatively assessed with SSM-PANi a...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.124340
更新日期：2021-01-01 00:00:00
abstract：:In this study, sulphated zirconia was directly synthesised and compared to the conventional wet method of preparation. The surface areas and pore sizes were 169 m(2)/g, 0.61 μm (directly synthesized) and 65 m(2)/g, 0.24 μm (conventional method), respectively. Directly synthesized sulphated zirconia was amorphous, wher...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.02.040
更新日期：2011-05-01 00:00:00
abstract：:The aim of this work was to study the stabilization of the activity of two commercial microbial phytases (Aspergillus niger and Escherichia coli) after immobilization on nanoclays and to establish optimal conditions for their immobilization. Synthetic allophane, synthetic iron-coated allophanes and natural montmorillo...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.07.054
更新日期：2011-10-01 00:00:00
