scholarly journals Toward engineeringE. coliwith an autoregulatory system for lignin valorization

2018 ◽  
Vol 115 (12) ◽  
pp. 2970-2975 ◽  
Author(s):  
Weihua Wu ◽  
Fang Liu ◽  
Seema Singh
Keyword(s):  
Fermentation Broth ◽  
Value Added ◽  
Inducible Promoter ◽  
Economic Viability ◽  
Biosynthesis Pathway ◽  
Fermentation Inhibitors ◽  
Lignin Valorization ◽  
Process Cost ◽  
The Cost ◽  
External Inducer

Efficient lignin valorization could add more than 10-fold the value gained from burning it for energy and is critical for economic viability of future biorefineries. However, lignin-derived aromatics from biomass pretreatment are known to be potent fermentation inhibitors in microbial production of fuels and other value-added chemicals. In addition, isopropyl-β-d-1-thiogalactopyranoside and other inducers are routinely added into fermentation broth to induce the expression of pathway enzymes, which further adds to the overall process cost. An autoregulatory system that can diminish the aromatics’ toxicity as well as be substrate-inducible can be the key for successful integration of lignin valorization into future lignocellulosic biorefineries. Toward that goal, in this study an autoregulatory system is demonstrated that alleviates the toxicity issue and eliminates the cost of an external inducer. Specifically, this system is composed of a catechol biosynthesis pathway coexpressed with an active aromatic transporter CouP under induction by a vanillin self-inducible promoter, ADH7, to effectively convert the lignin-derived aromatics into value-added chemicals usingEscherichia colias a host. The constructed autoregulatory system can efficiently transport vanillin across the cell membrane and convert it to catechol. Compared with the system without CouP expression, the expression of catechol biosynthesis pathway with transporter CouP significantly improved the catechol yields about 30% and 40% under promoter pTrc and ADH7, respectively. This study demonstrated an aromatic-induced autoregulatory system that enabled conversion of lignin-derived aromatics into catechol without the addition of any costly, external inducers, providing a promising and economically viable route for lignin valorization.

scholarly journals Efficient Extraction of Fermentation Inhibitors by Means of Green Hydrophobic Deep Eutectic Solvents

Molecules ◽  
2021 ◽  
Vol 27 (1) ◽  
pp. 157
Author(s):  
Patrycja Makoś-Chełstowska ◽  
Edyta Słupek ◽  
Karolina Kucharska ◽  
Aleksandra Kramarz ◽  
Jacek Gębicki
Keyword(s):  
Water Solubility ◽  
Fermentation Broth ◽  
Volume Ratio ◽  
Value Added ◽  
Deep Eutectic Solvents ◽  
Biofuel Production ◽  
Biomass Pretreatment ◽  
Hydrogen Yield ◽  
Fermentation Inhibitors ◽  
Environmental Aspect

The methods for hydrogen yield efficiency improvements, the gaseous stream purification in gaseous biofuels generation, and the biomass pretreatment are considered as the main trends in research devoted to gaseous biofuel production. The environmental aspect related to the liquid stream purification arises. Moreover, the management of post-fermentation broth with the application of various biorefining techniques gains importance. Chemical compounds occurring in the exhausted liquid phase after biomass pretreatment and subsequent dark and photo fermentation processes are considered as value-added by products. The most valuable are furfural (FF), 5-hydroxymethylfurfural (HMF), and levulinic acid (LA). Enriching their solutions can be carried with the application of liquid–liquid extraction with the use of a suitable solvent. In these studies, hydrophobic deep eutectic solvents (DESs) were tested as extractants. The screening of 56 DESs was carried out using the Conductor-like Screening Model for Real Solvents (COSMO-RS). DESs which exposed the highest inhibitory effect on fermentation and negligible water solubility were prepared. The LA, FF, and HMF were analyzed using FT-IR and NMR spectroscopy. In addition, the basic physicochemical properties of DES were carefully studied. In the second part of the paper, deep eutectic solvents were used for the extraction of FF, LA, and HMF from post-fermentation broth (PFB). The main extraction parameters, i.e., temperature, pH, and DES: PFB volume ratio (VDES:VPFB), were optimized by means of a Box–Behnken design model. Two approaches have been proposed for extraction process. In the first approach, DES was used as a solvent. In the second, one of the DES components was added to the sample, and DES was generated in situ. To enhance the post-fermentation broth management, optimization of the parameters promoting HMF, FF, and LA extraction was carried under real conditions. Moreover, the antimicrobial effect of the extraction of FF, HMF, and LA was investigated to define the possibility of simultaneous separation of microbial parts and denatured peptides via precipitation.

Implementasi Analisis Proses Bisnis Sebagai Upaya Pengurangan Biaya

2019 ◽  
Vol 10 (1) ◽  
pp. 1-27
Author(s):  
Aniek Wijayanti
Keyword(s):  
Business Process ◽  
Cost Reduction ◽  
Process Analysis ◽  
Value Added ◽  
Added Value ◽  
Natural Material ◽  
Management Activity ◽  
Procurement Process ◽  
Material Procurement ◽  
The Cost

Business Process Analysis can be used to eliminate or reduce a waste cost caused by non value added activities that exist in a process. This research aims at evaluating activities carried out in the natural material procurement process in the PT XYZ, calculating the effectiveness of the process cycle, finding a way to improve the process management, and calculating the cost reduction that can achieved by activity management. A case study was the approach of this research. The researcher obtained research data throughout deep interviews with the staff who directly involved in the process, observation, and documentation of natural material procurement. The result of this study show that the effectiveness of the process cycle of natural material procurement in the factory reached as much as 87,1% for the sand material and 72% for the crushed stone. This indicates that the process still carry activities with no added value and still contain ineffective costs. Through the Business Process Mechanism, these non value added activities can be managed so that the process cycle becomes more efficient and cost effectiveness is achieved. The result of the effective cycle calculation after the management activities implementation is 100%. This means that the cost of natural material procurement process has become effective. The result of calculation of the estimated cost reduction as a result of management activity is as much as Rp249.026.635,90 per year.

Investigating the Relationship between Company Competitiveness and Environmental Regulation in European Food Processing: Results of a Matched Firm Comparison

1998 ◽  
Vol 30 (9) ◽  
pp. 1585-1602 ◽  
Author(s):  
D M W N Hitchens ◽  
J E Birnie ◽  
A McGowan ◽  
U Triebswetter ◽  
A Cottica
Keyword(s):  
Environmental Regulation ◽  
Food Processing ◽  
Value Added ◽  
Effluent Treatment ◽  
Environmental Costs ◽  
The European Union ◽  
The Republic ◽  
The Cost ◽  
The Relationship ◽  
Regulation Costs

The authors use a method of matched-plant comparisons between food processing firms in Germany, Italy, Northern Ireland, and the Republic of Ireland to investigate the relationship between environmental regulation and company competitiveness across the European Union. Comparative competitiveness was indicated by measures of value-added per employee, physical productivity, export share, and employment growth. The cost of water supply (public or well), effluent treatment (in-plant treatment and/or sewerage system), and disposal of sludge and packaging were also compared. Total environmental costs in Germany, Italy, and Ireland were small: usually less than 1% of turnover. Compared with the Irish firms, German companies had relatively high environmental costs as well as productivity levels. There was, however, a lack of a clear relationship between company competitiveness and the size of regulation costs: in Ireland and Italy environmental costs were similar but German firms had much higher productivity; compared with German counterparts, Italian firms had lower environmental costs but higher productivity.

THE FOREIGN BANK EFFECT ON VALUE CREATION IN COMMERCIAL BANKS INCORPORATED IN THAILAND

2008 ◽  
Vol 53 (02) ◽  
pp. 215-244
Author(s):  
CHANTAL HERBERHOLZ
Keyword(s):  
Performance Measures ◽  
Commercial Banks ◽  
Economic Value ◽  
Value Added ◽  
Foreign Bank ◽  
Level Data ◽  
Beneficial Impact ◽  
Domestic Banks ◽  
The Cost ◽  
Traditional Performance

Using quarterly bank-level data over the period 1997–2005, this paper examines the effect of foreign bank presence on commercial banks incorporated in Thailand, using traditional and value-based performance measures as indicators of the degree of competition and proxies for the efficiency in the provision of banking services. The findings suggest that foreign bank presence is not only beneficial in terms of traditional performance measures, but also in terms of economic profit. The results with respect to economic value added and cash value added, however, cast some doubt over the presumed benefits of opening up, underlining the importance of using a proxy that considers the cost of equity and departs from standard accounting principles. Furthermore, the results indicate that foreign entry through the acquisition of domestic banks appears to have a stronger and more beneficial impact on locally incorporated banks than through the establishment of branches, with majority ownership by a foreign blockholder being of importance.

Linkage between Economic Value Added and Market Value: An Analysis

2000 ◽  
Vol 25 (3) ◽  
pp. 23-36 ◽  
Author(s):  
Ashok Banerjee
Keyword(s):  
New York ◽  
Economic Value ◽  
Value Added ◽  
Market Value ◽  
Shareholder Wealth ◽  
Indian Context ◽  
The Us ◽  
Generating Capacity ◽  
The Cost ◽  
Future Growth

Maximizing shareholder value has become the new corporate paradigm. Corporations in the US have started disclosing EVA information from the beginning of 90s as a measure of corporate performance. It is believed that market value of a firm (hence shareholder wealth) would increase with the increase in EVA. Various studies done in the US also confirm this belief. EVA (a term coined and registered by Stern Stewart & Co. New York) is a residual income that subtracts the cost of capital from the operating profits generated by a business. The present study makes an at tempt to find the relevance of Stewart's claim that market value of the firm is largely driven by its EVA generating capacity in the Indian context. Based on a sample of 200 firms over a period of five years, the study shows that market value of a firm can be well predicted by estimated future EVA streams. The study has also found that market value of most of the firms in the sample is explained more by current operational value than future growth value of firms.

scholarly journals Comparative economics of cashew nut kernel processing technology in Bastar region of India

2014 ◽  
Vol 39 (1) ◽  
pp. 165-172
Author(s):  
Praveen Kumar Verma ◽  
SK Nag ◽  
SK Patil
Keyword(s):  
Cost Reduction ◽  
Cost Benefit ◽  
Economic Viability ◽  
Working Capital ◽  
Cashew Nut ◽  
Net Profit ◽  
Cost Benefit Ratio ◽  
Comparative Economics ◽  
The Cost ◽  
Improved Technology

The paper has studied the economic viability of improved technology (Introduced under NAIP component-3) for extraction of cashew kernel from cashew nut in Bastar region of Chhattisgarh, India. Cost concept has been used to calculate economics of cashew kernel. The technology (Boiling, steaming, cutting, drying, and peeling) has been found viable over conventional practices (Traditional manual separation by stone or hammer) on account of higher recovery of 40 percent and cost reduction by 29.71 percent. Overall net profit per unit (One unit includes one boiler, one steamer, two cutter, one dryer, six peelers and cost of land, depreciation and interest on working capital) in the case of improved technology has been estimated to be Rs 7.32 lakh. Cost of production in machine extraction practices was 202.80 Rupees per kilogram of cashew in spite of traditionally practiced 288.56 Rupees per kilogram. The cost benefit ratio was found higher in machine extraction (1.57) as compare to traditionally practiced (0.169). The mechanical decortications and separation could not only save time and money, also reduced women drudgery (due to manual breaking by stone or hammer to separate kernel). The technology has been found suitable for promotion of entrepreneurship on the processing of cashew kernel from cashew nut in the production catchments which otherwise is not properly utilized. DOI: http://dx.doi.org/10.3329/bjar.v39i1.20166 Bangladesh J. Agril. Res. 39(1): 165-172, March 2014

scholarly journals PENERAPAN TAX REVIEW SEBAGAI DASAR EVALUASI ATAS PEMENUHAN KEWAJIBAN PERPAJAKAN PPH BADAN DAN PPN

2018 ◽  
pp. 245
Author(s):  
I Kadek Agus Setiawan ◽  
Putu Ery Setiawan
Keyword(s):  
Income Tax ◽  
National Development ◽  
Value Added ◽  
Corporate Income Tax ◽  
Measuring Instruments ◽  
Value Added Tax ◽  
The Subject ◽  
The Difference ◽  
Tax Reporting ◽  
The Cost

Taxes as a source of state revenues are used as a source of funds for governments for national development and measuring instruments to regulate government policies. Taxation or tax review is a measure of all company transactions to calculate the amount of tax payable and predict potential taxes that may arise under applicable tax laws and regulations. This research was conducted at PT. KBIC which is engaged in cargo of Tax Year 2015. The purpose of this study is to determine the effect of the implementation of tax review of corporate income tax and value added tax. The method used in this research is descriptive comparative. Comparing the results of tax reporting by the company with the calculation of Corporate Income Tax and Value Added Tax at PT. KBIC tax year 2015 from the researcher in accordance with the applicable tax provisions in Indonesia. Based on the results of the research, the tax review of the Corporate Income Tax has found differences in the fiscal reconciliation report on the Office of Travel and Phone Charge accounts. Taxpayers make 100% corrections of the cost of mobile phones. It should be corrected cost of 50% of the cost should be. On the company's travel account, the company can not show the official report or notes in the assignment explaining the subject or purpose of the Overseas official's travel related to the company's principal activity that causes the difference of tax correction between the taxpayer and the researcher. Tax review conducted on Value Added Tax, the taxpayer has reported the fiscal reconciliation report correctly and there is no mistake.

scholarly journals Price-Efficiency Relationship for Photovoltaic Systems on a Global Basis

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Mehmet Sait Cengiz ◽  
Mehmet Salih Mamiş
Keyword(s):  
Power Systems ◽  
Electricity Generation ◽  
Economic Viability ◽  
Photovoltaic Systems ◽  
The World ◽  
The Future ◽  
Potential Factors ◽  
Technology Lifecycle ◽  
Price Analysis ◽  
The Cost

Solar energy is the most abundant, useful, efficient, and environmentally friendly source of renewable energy. In addition, in recent years, the capacity of photovoltaic electricity generation systems has increased exponentially throughout the world given an increase in the economic viability and reliability of photovoltaic systems. Moreover, many studies state that photovoltaic power systems will play a key role in electricity generation in the future. When first produced, photovoltaic systems had short lifetimes. Currently, through development, the technology lifecycle of photovoltaic systems has increased to 20–25 years. Studies showed that photovoltaic systems would be broadly used in the future, a conclusion reached by considering the rapidly decreasing cost of photovoltaic systems. Because price analysis is very important for energy marketing, in this study, a review of the cost potential factors on photovoltaic panels is realized and the expected cost potential of photovoltaic systems is examined considering numerous studies.

scholarly journals Primary Research of the Advantages and the Cost Control of the ABC & EVA Integrated System

2010 ◽  
Vol 3 (3) ◽  
pp. 141
Author(s):  
Haibo Hu
Keyword(s):  
Cost Control ◽  
Control Strategies ◽  
Economic Value ◽  
Value Added ◽  
Capital Cost ◽  
Integrated System ◽  
Activity Based Costing ◽  
Cost System ◽  
Integrated Cost ◽  
The Cost

The integrated product of Activity-Based Costing (ABC) and Economic Value Added (EVA) is the ABC & EVA system, i.e. the integrated cost system. Traditional ABC method gives priority to the interior activity chain of enterprise to implement the cost analysis, but ignores the capital cost, so the cost accounting is not complete. The ABC & EVA system brings the capital cost into the cost management, which could not only open out the real economic value created by the cost objects, but extend the pure cost computation of ABC to the performance evaluation. Based on the principle of the ABC & EVA system, the enterprise cost control strategies under the integrated cost system are proposed.

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