Hydrothermal Pretreatment for Valorization of Genetically Engineered Bioenergy Crop for Lipid and Cellulosic Sugar Recovery

2021 ◽  
pp. 125817
Author(s):  
Ramkrishna Singh ◽  
Hui Liu ◽  
John Shanklin ◽  
Vijay Singh
Keyword(s):  
Genetically Engineered ◽  
Hydrothermal Pretreatment ◽  
Bioenergy Crop ◽  
Sugar Recovery

Genetically Engineered Jatropha: A New Bioenergy Crop

2020 ◽  
pp. 237-256
Author(s):  
G. Raja Krishna Kumar ◽  
Nalini Eswaran ◽  
T. Sudhakar Johnson
Keyword(s):  
Genetically Engineered ◽  
Bioenergy Crop

scholarly journals Improvement of Anaerobic Digestion of Lignocellulosic Biomass by Hydrothermal Pretreatment

2019 ◽  
Vol 9 (18) ◽  
pp. 3853 ◽  
Author(s):  
Banafsha Ahmed ◽  
Kaoutar Aboudi ◽  
Vinay Kumar Tyagi ◽  
Carlos José Álvarez-Gallego ◽  
Luis Alberto Fernández-Güelfo ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Lignocellulosic Biomass ◽  
Hydrothermal Process ◽  
Genetically Engineered ◽  
Hydrothermal Pretreatment ◽  
Economic Feasibility ◽  
Process Performance ◽  
Genetically Engineered Microbes ◽  
Pre Treatment ◽  
Detoxification Process

Lignocellulosic biomass, comprising of cellulose, hemicellulose, and lignin, is a difficult-to-degrade substrate when subjected to anaerobic digestion. Hydrothermal pretreatment of lignocellulosic biomass could enhance the process performance by increasing the generation of methane, hydrogen, and bioethanol. The recalcitrants (furfurals, and 5-HMF) could be formed at high temperatures during hydrothermal pretreatment of lignocellulosic biomass, which may hinder the process performance. However, the detoxification process involving the use of genetically engineered microbes may be a promising option to reduce the toxic effects of inhibitors. The key challenge lies in the scaleup of the hydrothermal process, mainly due to necessity of upholding high temperature in sizeable reactors, which may demand high capital and operational costs. Thus, more efforts should be towards the techno-economic feasibility of hydrothermal pre-treatment at full scale.

scholarly journals Hydrothermal Pretreatment of Date Palm (Phoenix dactyliferaL.) Leaflets and Rachis to Enhance Enzymatic Digestibility and Bioethanol Potential

2015 ◽  
Vol 2015 ◽  
pp. 1-13 ◽  
Author(s):  
Chuanji Fang ◽  
Jens Ejbye Schmidt ◽  
Iwona Cybulska ◽  
Grzegorz P. Brudecki ◽  
Christian Grundahl Frankær ◽  
...  
Keyword(s):  
Date Palm ◽  
Ethanol Yield ◽  
Hydrothermal Pretreatment ◽  
Sugar Recovery ◽  
Enzymatic Conversion ◽  
X Ray Diffraction ◽  
Enzymatic Digestibility ◽  
X Ray ◽  
Yield Production ◽  
Scanning Electron

Date palm residues are one of the most promising lignocellulosic biomass for bioethanol production in the Middle East. In this study, leaflets and rachis were subjected to hydrothermal pretreatment to overcome the recalcitrance of the biomass for enzymatic conversion. Evident morphological, structural, and chemical changes were observed by scanning electron microscopy, X-ray diffraction, and infrared spectroscopy after pretreatment. High glucan (>90% for both leaflets and rachis) and xylan (>75% for leaflets and >79% for rachis) recovery were achieved. Under the optimal condition of hydrothermal pretreatment (210°C/10 min) highly digestible (glucan convertibility, 100% to leaflets, 78% to rachis) and fermentable (ethanol yield, 96% to leaflets, 80% to rachis) solid fractions were obtained. Fermentability test of the liquid fractions proved that no considerable inhibitors toSaccharomyces cerevisiaewere produced in hydrothermal pretreatment. Given the high sugar recovery, enzymatic digestibility, and ethanol yield, production of bioethanol by hydrothermal pretreatment could be a promising way of valorization of date palm residues in this region.

Reproductive health issues in patients with psoriasis (literature review)

2019 ◽  
Vol 1 (7) ◽  
pp. 5-8
Author(s):  
L. S. Kruglova ◽  
A. A. Osina ◽  
A. A. Khotko
Keyword(s):  
Drug Therapy ◽  
Reproductive Health ◽  
Literature Review ◽  
Pregnancy Outcomes ◽  
Adverse Pregnancy Outcome ◽  
Certolizumab Pegol ◽  
Genetically Engineered ◽  
Health Issues ◽  
Degree Of Confidence ◽  
Adverse Pregnancy

Among patients with psoriasis, approximately 50% are women and almost 75 % of them are under the age of 40 years. Thus, most women with psoriasis have childbearing potential. When pregnancy occurs in 22 % of patients, the activity of psoriasis persists, characteristic of the course before pregnancy, in 23 % of women, the course of the disease worsens. The article provides up-to-date data on the management of pregnant patients with psoriasis. To improve pregnancy outcomes in patients with psoriasis, it is important to prevent exacerbation of the disease. The choice of drug therapy in this case is based on an assessment of the ratio of the risk of undesirable effects of the drugs on the developing fetus and the risk of the development of exacerbation of psoriasis, which can cause an adverse pregnancy outcome. Despite the fact that the available clinical experience of using genetically engineered drugs is still limited, with a certain degree of confidence we can say that there is no increase in the risk of adverse pregnancy outcomes associated with therapy with certolizumab pegol.

Quantum Dot Bioconjugates as Energy Donors in Fluorescence Resonance Energy Transfer Assays

2003 ◽  
Vol 773 ◽  
Author(s):  
Aaron R. Clapp ◽  
Igor L. Medintz ◽  
J. Matthew Mauro ◽  
Hedi Mattoussi
Keyword(s):  
Energy Transfer ◽  
Quantum Dot ◽  
Organic Dyes ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Genetically Engineered ◽  
Molar Ratio ◽  
Binding Assays ◽  
Specific Sequence ◽  
Donor Acceptor

AbstractLuminescent CdSe-ZnS core-shell quantum dot (QD) bioconjugates were used as energy donors in fluorescent resonance energy transfer (FRET) binding assays. The QDs were coated with saturating amounts of genetically engineered maltose binding protein (MBP) using a noncovalent immobilization process, and Cy3 organic dyes covalently attached at a specific sequence to MBP were used as energy acceptor molecules. Energy transfer efficiency was measured as a function of the MBP-Cy3/QD molar ratio for two different donor fluorescence emissions (different QD core sizes). Apparent donor-acceptor distances were determined from these FRET studies, and the measured distances are consistent with QD-protein conjugate dimensions previously determined from structural studies.

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