Biological and Economic Feasibility of Genetically Engineered Trees for Lignin Properties and Carbon Allocation

1989 ◽  
pp. 349-367 ◽  
Author(s):  
Roger Timmis ◽  
Patrick C. Trotter
Keyword(s):  
Carbon Allocation ◽  
Genetically Engineered ◽  
Economic Feasibility

scholarly journals Techno-Economic Analysis of Bio-Based Lactic Acid Production Utilizing Corn Grain as Feedstock

Processes ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 199 ◽  
Author(s):  
Ashish Manandhar ◽  
Ajay Shah
Keyword(s):  
Lactic Acid ◽  
Acid Production ◽  
Raw Materials ◽  
Lactic Acid Production ◽  
Chemical Equipment ◽  
Genetically Engineered ◽  
Economic Feasibility ◽  
Production Costs ◽  
Conversion Rates ◽  
Corn Grain

Lactic acid is an important chemical with numerous commercial applications that can be fermentatively produced from biological feedstocks. Producing lactic acid from corn grain could complement the use of already existing infrastructure for corn grain-based ethanol production with a higher value product. The objective of this study was to evaluate the techno-economic feasibility of producing 100,000 metric tons (t) of lactic acid annually from corn grain in a biorefinery. The study estimated the resources (equipment, raw materials, energy, and labor) requirements and costs to produce lactic acid from bacteria, fungi and yeast-based fermentation pathways. Lactic acid production costs were $1181, $1251 and $844, for bacteria, fungi and yeast, respectively. Genetically engineered yeast strains capable of producing lactic acid at low pH support significantly cheaper processes because they do not require simultaneous neutralization and recovery of lactic acid, resulting in lower requirements for chemical, equipment, and utilities. Lactic acid production costs were highly sensitive to sugar-to-lactic-acid conversion rates, grain price, plant size, annual operation hours, and potential use of gypsum. Improvements in process efficiencies and lower equipment and chemical costs would further reduce the cost of lactic acid production from corn grain.

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.

Thathir Quality Scholarship Program For Students At University level

2018 ◽  
Vol 2 (3) ◽  
pp. 206-219
Author(s):  
Louay Qais Abdullah ◽  
Duraid Faris Khayoun
Keyword(s):  
College Students ◽  
Life Sciences ◽  
Economic Feasibility ◽  
First Year ◽  
Grant Program ◽  
Scholarship Program ◽  
University Level ◽  
Faculty Of Education ◽  
The University ◽  
The Relationship

The study focused basically on measuring the relationship between the material cost of the students benefits program and the benefits which are earned by it, which was distributed on college students in the initial stages (matinee) and to show the extent of the benefits accruing from the grant program compared to the material burdens which matched and the extent of success or failure of the experience and its effect from o scientific and side on the Iraqi student through these tough economic circumstances experienced by the country in general, and also trying to find ways of proposed increase or expansion of distribution in the future in the event of proven economic feasibility from the program. An data has been taking from the data fro the Department of Financial Affairs and the Department of Studies and Planning at the University of Diyala with taking an data representing an actual and minimized pattern and questionnaires to a sample of students from the Department of Life Sciences in the Faculty of Education of the University of Diyala on the level of success and failure of students in the first year of the grant and the year before for the purpose of distribution comparison. The importance of the study to measure the extent of interest earned in comparision whit the material which is expenseon the program of grant (grant of students) to assist the competent authorities to continue or not in the program of student grants for the coming years.

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.

SELECTION AND SWITCHING OF GENETICALLY ENGINEERED BIOLOGICAL AGENTS IN TREATMENT OF JUVENILE ARTHRITIS

2018 ◽  
Vol 97 (3) ◽  
pp. 52-61
Author(s):  
E.S. Zholobova ◽  
◽  
A.K. Ignatova ◽  
N.G. Seylanova ◽  
A.P. Golubeva ◽  
...  
Keyword(s):  
Biological Agents ◽  
Genetically Engineered ◽  
Juvenile Arthritis
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