Consecutive lipase immobilization and glycerol carbonate production under continuous-flow conditions

2016 ◽  
Vol 6 (13) ◽  
pp. 4743-4748 ◽  
Author(s):  
Raquel A. C. Leão ◽  
Stefânia P. de Souza ◽  
Daniel O. Nogueira ◽  
Guilherme M. A. Silva ◽  
Marcus V. M. Silva ◽  
...  
Keyword(s):  
Physical Properties ◽  
Continuous Flow ◽  
Value Added ◽  
Glycerol Carbonate ◽  
Flow Conditions ◽  
Lipase Immobilization ◽  
Carbonate Production ◽  
Food Industries ◽  
Value Added Products

Several value-added products can be produced from glycerol and among these products glycerol carbonate (GC) has received much attention in recent years because of its physical properties and wide application in the chemical, pharmaceutical and food industries.

Process intensification for tertiary amine catalyzed glycerol carbonate production: translating microwave irradiation to a continuous-flow process

RSC Advances ◽  
2015 ◽  
Vol 5 (27) ◽  
pp. 20945-20950 ◽  
Author(s):  
Daniel O. Nogueira ◽  
Stefânia P. de Souza ◽  
Raquel A. C. Leão ◽  
Leandro S. M. Miranda ◽  
Rodrigo O. M. A. de Souza
Keyword(s):  
Microwave Irradiation ◽  
Physical Properties ◽  
Tertiary Amine ◽  
Continuous Flow ◽  
Water Solubility ◽  
Process Intensification ◽  
Glycerol Carbonate ◽  
Flow Process ◽  
Carbonate Production ◽  
Continuous Flow Process

Different products of interest can be produced from glycerol and glycerol carbonate (GC) has received much attention in recent years because of its physical properties, nontoxicity and water solubility.

scholarly journals A Novel Biodiesel and Glycerol Carbonate Production Plant

2011 ◽  
Vol 9 (1) ◽  
Author(s):  
Nghi T. Nguyen ◽  
Yaşar Demirel
Keyword(s):  
Net Present Value ◽  
Economic Value ◽  
Value Added ◽  
Biodiesel Production ◽  
Glycerol Carbonate ◽  
Production Plant ◽  
Present Value ◽  
Carbonate Production ◽  
Market Values ◽  
Value Added Products

Crude glycerol is the byproduct of biodiesel production plant and the economic value of glycerol may affect the profitability of the biodiesel production plant. As the production rate of bioglycerol increases, its market values drop considerably. Therefore, conversion of bioglycerol into value-added products can reduce the overall cost, hence, leading to a more economical biodiesel production plant. In a direct carboxylation reaction, CO2 reacts with glycerol to produce glycerol carbonate and water. This study presents a direct comparison of the economic analysis of the conventional biodiesel production plant and the possible next generation biodiesel-glycerol carbonate production plant. At the end of 15-year project, the net present value of the biodiesel-glycerol carbonate production plant is $13.21 million higher than the conventional biodiesel plant. The stochastic model has predicted that the biodiesel-glycerol carbonate and conventional biodiesel production plants has about 30% and 63% chance of getting negative net present value, respectively. Heterogeneous catalyst, Ca3La1, is used for transesterification reaction to reduce separation steps in the biodiesel production process.

scholarly journals Economic Forces Influencing Value-Added Food Industries: Implications for Southern Agriculture

1989 ◽  
Vol 21 (1) ◽  
pp. 13-22 ◽  
Author(s):  
Ralph D. Christy ◽  
John M. Connor
Keyword(s):  
Labor Force ◽  
Value Added ◽  
Economic Activities ◽  
Food Industries ◽  
The Past ◽  
Important Link ◽  
Economic Forces ◽  
Production Agriculture ◽  
Value Added Products

During the past few decades, U. S. agriculture has experienced remarkable gains in productivity and efficiency. While the number of farms has declined, the economic activities supporting production agriculture continue to comprise a major sector of the U. S. economy. The value-added food and fiber complex serves as an important link between production agriculture and the larger U. S. economy. Value-added products from agriculture have a retail value of more than $700 billion annually and engage about 20 percent of the U. S. labor force (ESCOP).

Effect of Moisture Content and Screw Speed on the Physical Chemical Properties of an Extruded Crab-based Snack

2005 ◽  
Vol 11 (2) ◽  
pp. 121-127 ◽  
Author(s):  
V. A. Obatolu ◽  
D. I. Skonberg ◽  
M. E. Camire ◽  
M. P. Dougherty
Keyword(s):  
Moisture Content ◽  
Physical Properties ◽  
Chemical Properties ◽  
Value Added ◽  
Expansion Ratio ◽  
Screw Speed ◽  
Twin Screw ◽  
L Value ◽  
By Products ◽  
Value Added Products

Crab processing generates by-products that could be used in new value-added products to decrease processing waste and increase profits. In this product development study, the effects of moisture content and screw speed on physical properties and composition of an extruded crab-based snack product were investigated. Corn meal was fortified with 10% ground crab leg and passed through a twin-screw extruder using moisture contents of 25% and 30% and screw speeds of 200, 250 and 300rpm for a total of six treatments, extruded in duplicate. Screw speed and moisture content had a significant (p 0.05) influence on moisture content, expansion ratio, crunchiness and L-value of the extrudate while protein, fat, ash and mineral were not significantly (p 0.05) affected. As screw speed increased, moisture content and bulk density of the extrudates decreased. The snack product extruded at 25% moisture content and 300rpm had significantly different (p 0.05) physical properties compared to all other treatments. Increases in torque and melting temperature were observed for higher screw speed and lower extruding moisture content.

scholarly journals Enhanced Productivity in Glycerol Carbonate Synthesis under Continuous Flow Conditions: Combination of Immobilized Lipases from Porcine Pancreas and Candida antarctica (CALB) on Epoxy Resins

ACS Omega ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 860-869 ◽  
Author(s):  
Marcelo A. do Nascimento ◽  
Larissa E. Gotardo ◽  
Raquel A. C. Leão ◽  
Aline M. de Castro ◽  
Rodrigo O. M. A. de Souza ◽  
...  
Keyword(s):  
Continuous Flow ◽  
Epoxy Resins ◽  
Candida Antarctica ◽  
Glycerol Carbonate ◽  
Flow Conditions ◽  
Porcine Pancreas ◽  
Immobilized Lipases

Continuous-flow hydrogenation of nitrocyclohexane toward value-added products with CuZnAl hydrotalcite derivate materials

2021 ◽  
pp. 118134
Author(s):  
Emil Kowalewski ◽  
Mirosław Krawczyk ◽  
Grzegorz Słowik ◽  
Jaroslav Kocik ◽  
Izabela S. Pieta ◽  
...  
Keyword(s):  
Continuous Flow ◽  
Value Added ◽  
Value Added Products

scholarly journals Fermented fish products in South and Southeast Asian cuisine: indigenous technology processes, nutrient composition, and cultural significance

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Yutika Narzary ◽  
Sandeep Das ◽  
Arvind Kumar Goyal ◽  
Su Shiung Lam ◽  
Hemen Sarma ◽  
...  
Keyword(s):  
Value Added ◽  
Nutritional Composition ◽  
Potential Hazard ◽  
Cultural Significance ◽  
Fish Products ◽  
Fermented Fish ◽  
Food Industries ◽  
Catabolic Activity ◽  
Technology Processes ◽  
Value Added Products

AbstractThe cleaner production of biomass into value-added products via microbial processes adds uniqueness in terms of food quality. The microbe-mediated traditional process for transforming biomass into food is a sustainable practice in Asian food industries. The 18 fermented fish products derived through this process as well as the associated micro-flora and nutritional composition have been focused. This review aims to update the process of green conversion biomass into value-added food products for a more sustainable future. Fish products are classified based on the substrate and source of the enzymes used in fermentation, which includes the three types of technology processing discussed. According to the findings, these fermented fish contain a plethora of beneficial microbiota, making them a valuable source of probiotics that may confer nutritional and health benefits. Bacillus (12 products), Lactobacillus (12 products), Micrococcus (9 products), and Staphylococcus (9 products) were the most common bacterial genera found in 18 fermented fish products. Consuming fermented fish products is beneficial to human health due to their high levels of carbohydrate, protein, fat, and lactic acid. However, biogenic amines, which are produced by certain bacteria as a by-product of their catabolic activity, are a significant potential hazard in traditionally fermented fish.

scholarly journals Synthesis of glycerol carbonate from dimethyl carbonate and glycerol using CaO derived from eggshells

2018 ◽  
Vol 192 ◽  
pp. 03045 ◽  
Author(s):  
Wanichaya Praikaew ◽  
Worapon Kiatkittipong ◽  
Kunlanan Kiatkittipong ◽  
Navadol Laosiripojana ◽  
Navin Viriya-empikul ◽  
...  
Keyword(s):  
Reaction Time ◽  
Reaction Temperature ◽  
Dimethyl Carbonate ◽  
Value Added ◽  
Cost Effective ◽  
Molar Ratio ◽  
Catalyst Loading ◽  
Glycerol Carbonate ◽  
Glycerol Conversion ◽  
Carbonate Production

Waste eggshell is proposed as a highly active catalyst for glycerol carbonate production from dimethyl carbonate (DMC) and glycerol. The effect of reaction temperature, reaction time and catalyst loading on the reaction performance were investigated in order to find a suitable operating condition. CaO derived from waste eggshell exhibits catalytic activity comparable to commercial CaO. By using CaO eggshell, glycerol conversion of 96% can be achieved within 90 min of reaction time under 2.5:1 feed molar ratio of DMC to glycerol, 0.08 mole ratio of CaO to glycerol and reaction temperature of 60°C. The catalyst was examined by XRD, TGA/DSC, SEM, N2 adsorption-desorption and Hammett indicators method. Utilization of eggshell as a catalyst for glycerol carbonate production not only provides a cost-effective and value-added of waste eggshell as a green catalyst, but also decrease amount of waste and its treatment cost which is ecologically friendly.

scholarly journals Fermentation: A Boon for Production of Bioactive Compounds by Processing of Food Industries Wastes (By-Products)

Molecules ◽  
2018 ◽  
Vol 23 (10) ◽  
pp. 2560 ◽  
Author(s):  
Pardeep Sadh ◽  
Suresh Kumar ◽  
Prince Chawla ◽  
Joginder Duhan
Keyword(s):  
Bioactive Compounds ◽  
Food Processing ◽  
Nutritive Value ◽  
Value Added ◽  
Bioactive Components ◽  
Food Industries ◽  
Current Review ◽  
Excellent Source ◽  
By Products ◽  
Value Added Products

A large number of by-products or wastes are produced worldwide through various food industries. These wastes cause a serious disposable problem with the environment. So, now a day’s different approaches are used for alternative use of these wastes because these by-products are an excellent source of various bioactive components such as polyphenols, flavonoids, caffeine, carotenoids, creatine, and polysaccharides etc. which are beneficial for human health. Furthermore, the composition of these wastes depends on the source or type of waste. Approximately half of the waste is lignocellulosic in nature produced from food processing industries. The dissimilar types of waste produced by food industries can be fortified by various processes. Fermentation is one of the oldest approaches and there are three types of fermentation processes that are carried out such as solid state, submerged and liquid fermentation used for product transformation into value added products through microorganisms. Selections of the fermentation process are product specific. Moreover, various studies were performed to obtain or fortified different bioactive compounds that are present in food industries by-products or wastes. Therefore, the current review article discussed various sources, composition and nutritive value (especially bioactive compounds) of these wastes and their management or augmentation of value-added products through fermentation.

scholarly journals Cultivation of Mushrooms and Their Lignocellulolytic Enzyme Production Through the Utilization of Agro-Industrial Waste

Molecules ◽  
2020 ◽  
Vol 25 (12) ◽  
pp. 2811 ◽  
Author(s):  
Jaturong Kumla ◽  
Nakarin Suwannarach ◽  
Kanaporn Sujarit ◽  
Watsana Penkhrue ◽  
Pattana Kakumyan ◽  
...  
Keyword(s):  
Industrial Waste ◽  
Enzyme Production ◽  
Value Added ◽  
Mushroom Cultivation ◽  
Food Industries ◽  
Global Environmental Problems ◽  
Lignocellulosic Substrates ◽  
Global Environmental ◽  
By Products ◽  
Value Added Products

A large amount of agro-industrial waste is produced worldwide in various agricultural sectors and by different food industries. The disposal and burning of this waste have created major global environmental problems. Agro-industrial waste mainly consists of cellulose, hemicellulose and lignin, all of which are collectively defined as lignocellulosic materials. This waste can serve as a suitable substrate in the solid-state fermentation process involving mushrooms. Mushrooms degrade lignocellulosic substrates through lignocellulosic enzyme production and utilize the degraded products to produce their fruiting bodies. Therefore, mushroom cultivation can be considered a prominent biotechnological process for the reduction and valorization of agro-industrial waste. Such waste is generated as a result of the eco-friendly conversion of low-value by-products into new resources that can be used to produce value-added products. Here, we have produced a brief review of the current findings through an overview of recently published literature. This overview has focused on the use of agro-industrial waste as a growth substrate for mushroom cultivation and lignocellulolytic enzyme production.

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