scholarly journals Fish Waste-Potential Low Cost Substrate for Bacterial Protease Production: A Brief Review

2016 ◽  
Vol 10 (1) ◽  
pp. 335-341 ◽  
Author(s):  
Aishwarya Ramkumar ◽  
Nallusamy Sivakumar ◽  
Reginald Victor

Industrial biotechnology processes have recently been exploited for an economic utilization of wastes to produce value added products. Of which, fish waste is one of the rich sources of proteins that can be utilized as low cost substrates for microbial enzyme production. Fish heads, tails, fins, viscera and the chitinous materials make up the wastes from fish industries. Processing these wastes for the production of commercial value added products could result in a decrease in the cost of production. In addition, we can eliminate the pollution of the environment and health issues due to the improper disposal of these fish wastes. This review highlights the potential use of fish waste as a cheaper substrate for the production of economically important protease enzyme.

2013 ◽  
Vol 4 (1) ◽  
pp. 115-125 ◽  
Author(s):  
K Siddique-e Rabbani ◽  
A Raihan Abir ◽  
AKM Bodiuzzaman

ECG equipment is vital for diagnosis of cardiac problems. However, such equipment come from the rich Western countries at a huge cost in both procurement and maintenance, and therefore cannot offer services to a large population in the Third World countries. The only solution is to design and develop such equipment in individual countries by developing local expertise. With three decades of experience, the Dhaka University group has taken a step towards developing prototypes of ECG equipment for dissemination to the healthcare service providers. This paper presents the detailed design of an PC based ECG equipment where optimized choice of components and of the design have been made keeping the cost and maintenance in view, but not sacrificing the quality, and incorporating necessary safety features to protect the patient from known hazards. Both the hardware and the software have been developed locally and are detailed in this paper. Outputs obtained from human subjects are shown which are of reasonable good quality, and have been verified using standard ECG equipment. The PC based ECG system will allow digital post processing of signals for improved diagnosis through software. Besides, this can also become part of a nationwide telemedicine system. DOI: http://dx.doi.org/10.3329/bjmp.v4i1.14701 Bangladesh Journal of Medical Physics Vol.4 No.1 2011 115-125


Membranes ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 82
Author(s):  
Roy Nitzsche ◽  
Hendrik Etzold ◽  
Marlen Verges ◽  
Arne Gröngröft ◽  
Matthias Kraume

Hemicellulose and its derivatives have a high potential to replace fossil-based materials in various high-value-added products. Within this study, two purification cascades for the separation and valorization of hemicellulose and its derived monomeric sugars from organosolv beechwood hydrolyzates (BWHs) were experimentally demonstrated and assessed. Purification cascade 1 included hydrothermal treatment for converting remaining hemicellulose oligomers to xylose and the purification of the xylose by nanofiltration. Purification cascade 2 included the removal of lignin by adsorption, followed by ultrafiltration for the separation and concentration of hemicellulose. Based on the findings of the experimental work, both cascades were simulated on an industrial scale using Aspen Plus®. In purification cascade 1, 63% of the oligomeric hemicellulose was hydrothermally converted to xylose and purified by nanofiltration to 7.8 t/h of a xylose solution with a concentration of 200 g/L. In purification cascade 2, 80% of the lignin was removed by adsorption, and 7.6 t/h of a purified hemicellulose solution with a concentration of 200 g/L was obtained using ultrafiltration. The energy efficiency of the cascades was 59% and 26%, respectively. Furthermore, the estimation of specific production costs showed that xylose can be recovered from BWH at the cost of 73.7 EUR/t and hemicellulose at 135.1 EUR/t.


2021 ◽  
Author(s):  
Gabriela Verónica Díaz ◽  
Silvana Soledad Sawostjanik Afanasiuk ◽  
Romina Olga Coniglio ◽  
Juan Ernesto Velázquez ◽  
Pedro Darío Zapata ◽  
...  

Abstract The agricultural industries generate lignocellulosic wastes that can be modified by fungi to generate high value-added products. The aim of this work was to analyze the efficiency of the bioconversion of sugarcane bagasse and cassava bagasse using two cheap home-made enzymatic cocktails from Aspergillus niger LBM 134 (produced also from agroindustrial wastes) and compare the hydrolysis yield with that obtained from the bioconversion using commercial enzymes. Sugarcane bagasse and cassava bagasse were pretreated with a soft alkaline solution before the hydrolysis carried out with home-made enzymatic cocktails of A. niger LBM 134 and with commercial enzymes to compare their performances. Mono and polysaccharides were analyzed before and after the bioconversion of both bagasses as well as their microscopic structure. The maximal yield was the 80% of total glucans saccharified from cassava bagasse. The bioconversion of both bagasses were better when we used the home-made enzymatic cocktails than commercial enzymes. We obtained high added-value products from agroindustrial wastes, home-made enzymatic cocktails and hydrolysates rich in fermentable sugars. The importance of this work lays in the higher performance of the cheap home-made enzymatic cocktails over the hydrolytic performance of commercial enzymes due to the cost of producing the home-made enzymatic cocktails were more than 500 times lower than commercial enzymes.


2020 ◽  
Vol 2 (2) ◽  
pp. 50-54
Author(s):  
Ndubuisi Chigozirim Onwusiribe ◽  
Chimarauche Peace Amanze ◽  
Chinwendu Oriaku

This study analyzed the profitability of ginger value addition in Abia State, Nigeria. This study identified the ginger value-added products common in the area, the cost implications of the value addition process, and the socio-economic and farm-specific factors affecting ginger value addition. A stratified random sampling technique was used to select 60 (sixty) respondents and a well-structured questionnaire was used to collect the necessary data. The results revealed that the value ginger products were dried ginger, salted ginger, ginger flakes, ginger oil, and ginger paste. The factors affecting the profitability of ginger value addition from the linear regression model shows that education, income, capital, and collateral were significant. It is, therefore, recommended that youth and entrepreneurs should invest in ginger value addition as it is profitable and it is a sure way to economic empowerment and fight against hunger. 


2022 ◽  
Vol 34 (2) ◽  
pp. 453-458
Author(s):  
Lakhvinder Kaur ◽  
Shachi Shah

Fruits and vegetables have the highest wastage rates of 45% of any food. One of the recent research areas is food waste valorization as a potential alternative to the disposal of a wide range of organic waste using microorganisms as one of the strategies known as microbial valorization. Bacterial cellulose is best known microbial valorization product because of its low cost, environmentally friendly nature, renewability, nanoscale dimensions, biocompatibility and extremely high hydrophilicity. Therefore, present study focuses on the isolation, characterization and identification of cellulose producing bacteria from decaying apple waste. Cellulose producers were isolated from decaying apple waste. The bacterial isolates obtained were identified through the morphological biochemical, physiological and molecular identification. The bacterial isolates exhibited potential remediation options to biovalorize decaying fruit waste by producing value added products as well as in safe disposal of waste.


2018 ◽  
Vol 34 (6) ◽  
pp. 2770-2776
Author(s):  
Mohd Zul Helmi Rozaini ◽  
Habibah Hamzah ◽  
Chia Poh Wai ◽  
Mohd Hasmizam Razali ◽  
Uwaisulqarni M. Osman ◽  
...  

Fringescalesardinella or TambanSisik bones have been discovered can be utilized as sunscreen agent in cosmeceuticals. Its flesh is the main ingredient in keropoklekor or fish crackers in Malaysia and the bones contained very high hydroxyapatite (HAp), (Ca10(PO4)6(OH)2) compound which exhibit as UV light absorber. The percentage yields obtained from the hydrothermal extraction consist of 41.2 ± 0.66 % (w/w) of HApwhich was almost half of the dry weight of 100 g samples.The additional of manganeseand ferum,initiated the novel sunscreen materials from hydroxyapatite-Fe and hydroxyapatite-Mn doped (modified bones). The unmodified HAp recorded with SPF 20 and modified HAp-Mn measured with SPF 40. Modified HAp-Fe emulsions were recorded with SPF 50 as the highest SPF value. Therefore, the bones have been characterized using Fourier Transform Infrared Radiation (FTIR)spectroscopy and x-Ray diffraction (XRD).The results obtained clearly indicated that the HAp existence in waste of Fringescalesardinella bones with addition of FeCl2which exhibits high potential as sunscreen compared to manganese and unmodified bones. Thus, the utilization of waste from the fish bones not only produce value-added products from low-cost resources, but also help in reducing pollution to the environment and preserved the global sustainability.


2013 ◽  
Vol 53 (2) ◽  
pp. 447
Author(s):  
Michael Gillin ◽  
Jonathon Peacock

With such significant growth in the LNG industry and the broader energy and natural resources sector, the supply-chain risk and the cost of sourcing capital equipment and materials is increasingly difficult to manage. Many organisations are beginning to consider the merits of moving to a tax-efficient supply chain and procurement model, both through sourcing from a low-cost country and also centralising purchasing and supply operations in a tax-efficient location. Tax-efficient sourcing integrates supply chain and procurement-operating model design with tax planning to deliver significant cost reductions and profit increases through centrally controlling procurement operations. The consideration of the most efficient tax structures to support sourcing and distribution of equipment also delivers. Centrally controlled strategic and tactical supply chain and procurement operations in a tax-efficient location support an organisation in: realising benefits through leveraging scale in operations and procurement; designing a flexible framework that can be used to decide which categories of spending are managed globally, regionally, and locally;and, the acceleration and sustainability of significant procurement savings delivery from low-cost locations. Planning and management of the tax implications of physical supply-chain operations to reduce the actual taxes paid on profits and operations happen through: the potential to reduce corporate taxes on company profits; reducing absolute value-added tax (VAT) payable or cash-flow cost of VAT; reducing duty payable; optimising the indirect taxes paid on physical flows; and, change of transfer pricing driving reduction in effective corporate tax rates.


Author(s):  
Stephen Bradley ◽  
Matthias Calice ◽  
Marc Fischer ◽  
Michael Harmening

Abstract This paper gives an overview of a methodology for reducing the cost of purchased materials for engineered products. The methodology has been successfully employed for a wide range of applications, ranging from low value-added products, such as simple processed materials (e.g., steel sheet or profiles), to high value-added equipment, such as machine tools and major components of industrial plants. We have applied the methodology in some 80 projects, achieving cost savings averaging 17% on top of the 10% savings achieved using traditional purchasing optimization approaches. The key distinguishing features of the methodology are a product-oriented as opposed to materials group-driven approach, the establishment of interdisciplinary teams that include engineers and purchasing professionals, and a well-defined, systematic method for addressing the most important drivers of materials cost together with key suppliers. The methodology is introduced by performing pilot projects, then anchored in the enterprise through organizational and procedural changes.


2016 ◽  
Vol 10 (2) ◽  
pp. 239-243 ◽  
Author(s):  
Kosuke Funatani ◽  
◽  
Keiichi Nakamoto ◽  
Anthony Beaucamp ◽  
Yoshimi Takeuchi ◽  
...  

It is important to establish new approaches to create value-added products, such as craftwork or artistic goods, that are different from traditional methods of realizing high-quality and low-cost products. Such a production technology is commonly called “dexterous machining.” This study addresses the creation of artistic products by using soft materials with complicated shapes by employing an aqueous solution of sodium acetate to fix a workpiece and to suppress the deformation. Experimental results show that the use of an aqueous solution of sodium acetate has the potential to realize the “dexterous machining” of soft objects.


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