Guadua angustifolia biochar/TiO composite and biochar as bio-based materials with environmental and agricultural application.

Globally, the companies that make commercial use of bamboo culms produce different kinds of solid waste rich in lignocellulosic biomass, which in some cases is not used and is discarded in landfills or incinerated in the open air; losing the possibility of recovering them and using them in other productive sectors. The research objective were to produce a biochar from Guadua agustifolia  Kunth sawdust, evaluate its potential environmental and agricultural use, obtain a biochar/TiO  composite to inactivate Escherichia coli and use the biochar as a soil conditioner in medicinal plants producing phenolic compounds and flavonoids. Biochar composite (produced at 300 °C for 1 h) involved TiO at 450 °C for 1 h for inactivation of E.

Wastewater treatment from a science faculty during the COVID-19 pandemic by using ammonium-oxidising and heterotrophic bacteria.

Unlabelled: During and after the pandemic caused by the SARS-CoV-2 virus, the use of personal care products and disinfectants increased in universities worldwide. Among these, quaternary ammonium-based products stand out; these compounds and their intermediates caused substantial changes in the chemical composition of the wastewater produced by these institutions. For this reason, improvements and environmentally sustainable biological alternatives were introduced in the existing treatment systems so that these institutions could continue their research and teaching activities.

Statistical Improvement of rGILCC 1 and rPOXA 1B Laccases Activity Assay Conditions Supported by Molecular Dynamics.

Laccases (E.C. 1.

Use of biochar and a post-coagulation effluent as an adsorbent of malachite green, beneficial bacteria carrier, and seedling substrate for plants belonging to the poaceae family.

Unlabelled: Wastewater treatment plants produce solid and semi-solid sludge, which treatment minimises secondary environmental pollution because of wastewater treatment and obtaining new bioproducts. For this reason, in this paper, the co-pyrolysis of biogenic biomasses recovered from a biological reactor with immobilised fungal and bacterial biomass and a tertiary reactor with sp. used for dye-contaminated wastewater treatment was carried out.

Production of pine sawdust biochar supporting phosphate-solubilizing bacteria as an alternative bioinoculant in Allium cepa L., culture.

We produced and characterised biochar made from Caribbean pine sawdust as raw material. The biochar (BC) was used as biocompatible support to co-inoculate phosphate solubilizing bacteria (PSB) (BC/PSB) on Allium cepa L., plants at a greenhouse scale for four months.

Impact of Antibiotics as Waste, Physical, Chemical, and Enzymatical Degradation: Use of Laccases.

The first traces of Tetracycline (TE) were detected in human skeletons from Sudan and Egypt, finding that it may be related to the diet of the time, the use of some dyes, and the use of soils loaded with microorganisms, such as spp., among other microorganisms capable of producing antibiotics. However, most people only recognise authors dating between 1904 and 1940, such as Ehrlich, Domagk, and Fleming.

Evaluation of two microcosm systems for co-treatment of LDPE and lignocellulosic biomass for biochar production.

Background: The co-transformation of solid waste of natural and anthropogenic origin can be carried out through solid-state-fermentation systems to obtain bio-products with higher added value and lower environmental impact.

Methods: To evaluate the effect of Pleurotus ostreatus on co-transformation of oxo-degradable low-density polyethylene (LDPE) sheets and lignocellulosic biomass (LCB), were assembled two 0.75 L microcosm systems in vertical (VMS) and horizontal (HMS) position.

A Brief History of Colour, the Environmental Impact of Synthetic Dyes and Removal by Using Laccases.

The history of colour is fascinating from a social and artistic viewpoint because it shows the way; use; and importance acquired. The use of colours date back to the Stone Age (the first news of cave paintings); colour has contributed to the social and symbolic development of civilizations. Colour has been associated with hierarchy; power and leadership in some of them.

Recombinant laccase rPOXA 1B real-time, accelerated and molecular dynamics stability study.

Background: Laccases (EC 1.10.3.

Non-domestic wastewater treatment with fungal/bacterial consortium followed by sp., and thermal conversion of the generated sludge.

Unlabelled: Liquid waste from biological stains is considered non-domestic wastewater difficult to treat, generating high environmental impact. Therefore, the objective of this work was to carry out secondary and tertiary treatment of these effluents at a pilot scale, using a fungal/bacterial consortium followed by sp., for 15 days.

LDPE Transformation by Exposure to Sequential Low-Pressure Plasma and TiO/UV Photocatalysis.

Low-density polyethylene (LDPE) sheets (3.0 ± 0.1 cm) received sequential treatment, first by the action of direct-current low-pressure plasma (DC-LPP) with a 100% oxygen partial pressure, 3.

Phosphate-solubilizing sp., and sp., co-culture for L. growth promotion.

Different genus of bacteria has been reported with the capacity to solubilize phosphorus from phosphate rock (PR). sp., (A18) and sp.

Tertiary treatment ( sp.) of a mixed effluent from two secondary treatments (immobilized recombinant and rPOXA 1B concentrate) of coloured laboratory wastewater (CLWW).

Industrial development has increased wastewater (WW) volume; generating contamination and disturbing ecosystems, because of breeching disposal parameters. In this work, Coloured Laboratory Wastewater (CLWW), (1500.00 colour units, CU) was separately submitted to two secondary treatments.

Low-cost media statistical design for laccase rPOXA 1B production in .

Laccases (E.C. 1.

Media improvement for 10 L bioreactor production of rPOXA 1B laccase by .

In this work, we statistically improved culture media for rPOXA 1B laccase production, expressed in containing pGAPZαA-- construct and assayed at 10 L bioreactor production scale (6 L effective work volume). The concentrated enzyme was evaluated for temperature and pH stability and kinetic parameter, characterized by monitoring oxidation of different ABTS [2, 20-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)] substrate concentrations. Plackett-Burman experimental design (PBED) implementation improved previous work results by 3.

Simultaneous bioconversion of lignocellulosic residues and oxodegradable polyethylene by Pleurotus ostreatus for biochar production, enriched with phosphate solubilizing bacteria for agricultural use.

A simultaneous treatment of lignocellulosic biomass (LCB) and low density oxodegradable polyethylene (LDPEoxo) was carried-out using Pleurotus ostreatus at microcosm scale to obtain biotransformed plastic and oxidized lignocellulosic biomass. This product was used as raw matter (RM) to produce biochar enriched with phosphate solubilizing bacteria (PSB). Biochar potential as biofertilizer was evaluated in Allium cepa culture at greenhouse scale.

Biodeterioration of plasma pretreated LDPE sheets by Pleurotus ostreatus.

Low-density polyethylene (LDPE) waste generates an environmental impact. To achieve the most suitable option for their degradation, it is necessary to implement chemical, physical and biological treatments, as well as combining procedures. Best treatment was prognosticated by Plackett-Burman Experimental Design (PB), evaluating five factors with two levels (0.

Detoxification of pulping black liquor with Pleurotus ostreatus or recombinant Pichia pastoris followed by CuO/TiO/visible photocatalysis.

Cellulose-pulping requires chemicals such as Cl, ClO, HO, and O. The black liquor (BL) generated exhibits a high chemical oxygen demand (COD), five-day biochemical oxygen demand (BOD), and chlorophenol content, along with an augmented colour and increased pH. BL is often discharged into water bodies, where it has a negative impact on the environment.

Correction to: Malachite Green and Crystal Violet Decolorization by Ganoderma lucidum and Pleurotus ostreatus Supernatant and by rGlLCC1 and rPOXA 1B Concentrates: Molecular Docking Analysis.

The original version of this article unfortunately contained a mistake. The replacement image of Fig. 4 provided by the first corresponding author, Aura M.

Malachite Green and Crystal Violet Decolorization by Ganoderma lucidum and Pleurotus ostreatus Supernatant and by rGlLCC1 and rPOXA 1B Concentrates: Molecular Docking Analysis.

Laccases catalyze the oxidation of various aromatic organic compounds concomitantly with molecular oxygen reduction to water. Triphenylmethane dyes are synthetic compounds widely used in diverse industries. Their removal from effluents is difficult, due to their high degree of structural complexity; hence, their high concentration in effluents cause a negative impact on the environment.

Plackett-Burman Design for rGILCC1 Laccase Activity Enhancement in : Concentrated Enzyme Kinetic Characterization.

Laccases are multicopper oxidases that catalyze aromatic and nonaromatic compounds with concomitant reduction of molecular oxygen to water. They are of great interest due to their potential biotechnological applications. In this work we statistically improved culture media for recombinant GILCC1 (rGILCC1) laccase production at low scale from containing the construct pGAPZA--Stop in .

Bioinformatic Analysis of the Human Recombinant Iduronate 2-Sulfate Sulfatase.

Mucopolysaccharidosis type II is a human recessive disease linked to the X chromosome caused by deficiency of lysosomal enzyme Iduronate 2-Sulfate Sulfatase (IDS), which leads to accumulation of glycosaminoglycans in tissues and organs. The human enzyme has been expressed in Escherichia coli and Pichia pastoris in attempt to develop more successful expression systems that allow the production of recombinant IDS for Enzyme Replacement Therapy (ERT). However, the preservation of native signal peptide in the sequence has caused conflicts in processing and recognition in the past, which led to problems in expression and enzyme activity.

Computational analysis and low-scale constitutive expression of laccases synthetic genes GlLCC1 from Ganoderma lucidum and POXA 1B from Pleurotus ostreatus in Pichia pastoris.

Lacasses are multicopper oxidases that can catalyze aromatic and non-aromatic compounds concomitantly with reduction of molecular oxygen to water. Fungal laccases have generated a growing interest due to their biotechnological potential applications, such as lignocellulosic material delignification, biopulping and biobleaching, wastewater treatment, and transformation of toxic organic pollutants. In this work we selected fungal genes encoding for laccase enzymes GlLCC1 in Ganoderma lucidum and POXA 1B in Pleurotus ostreatus.

Ethanol production by Saccharomyces cerevisiae using lignocellulosic hydrolysate from Chrysanthemum waste degradation.

Ethanol production derived from Saccharomyces cerevisiae fermentation of a hydrolysate from floriculture waste degradation was studied. The hydrolysate was produced from Chrysanthemum (Dendranthema grandiflora) waste degradation by Pleurotus ostreatus and characterized to determine the presence of compounds that may inhibit fermentation. The products of hydrolysis confirmed by HPLC were cellobiose, glucose, xylose and mannose.

[Development of a laminar bioadsorbent with hypertolerant Phanerochaete chrysosporium to Cd, Ni and Pb for wastewater treatment].

Background: The use of basidiomycetes for metal removal is an alternative to traditional methods. In this, the biomass acts as a natural ionic exchanger removing metals from solution.

Objective: To develop a laminar biosorbent using a basidiomycete fungus resistant to high Cd, Ni and Pb concentrations.