scholarly journals Microbially Powered Electrochemical Systems Coupled with Membrane-based Technology for Sustainable Desalination and Efficient Wastewater Treatment

2020 ◽  
Vol 42 (7) ◽  
pp. 360-380 ◽  
Author(s):  
Nishit Savla ◽  
Soumya Pandit ◽  
Namita Khanna ◽  
Abhilasha Singh Mathuriya ◽  
Sokhee P. Jung
Keyword(s):  
Membrane Fouling ◽  
Water Demand ◽  
Value Added ◽  
Internal Resistance ◽  
Maintenance Cost ◽  
Factors Affecting ◽  
Environmentally Sustainable ◽  
Electrochemical Systems ◽  
Cathodic Side ◽  
Value Added Products

Objective:Seawater has a potential for managing the intensive potable drinking water demand. The recentconventional desalinating technologies are environmentally unsustainable and energy intensive. Thus, in the quest to find an alternative to the traditional desalination technologies, microbial desalination cells (MDC) have come into limelight. MDCs are considered the promising technologies for treating wastewater while simultaneously producing electricity, which can be utilized for desalinating seawater along with production of some value added products. However, some technical limitations associated with the practical usage of MDCs are pH maintenance at the cathodic side, internal resistance along with membrane fouling and its durability.Methods:These challenges can be dealt by utilizing various integrated configurations.Results and Discussion:Based on the study, the conventional technologies require less operational and maintenance cost but also less environmentally sustainable in comparison to these integrated MDC configurations.Conclusion:This review summarizes the basic working principles of MDCs, its types and factors affecting its performance and also several other applications associated with MDCs. This review also highlights various integrated MDC configurations which can be utilized for reducing the limitations associated to the conventional MDC system.

scholarly journals Profitability Analysis of Ginger Value Addition in Abia State, Nigeria

2020 ◽  
Vol 2 (2) ◽  
pp. 50-54
Author(s):  
Ndubuisi Chigozirim Onwusiribe ◽  
Chimarauche Peace Amanze ◽  
Chinwendu Oriaku
Keyword(s):  
Value Added ◽  
Sampling Technique ◽  
Value Addition ◽  
Factors Affecting ◽  
Profitability Analysis ◽  
Specific Factors ◽  
Cost Implications ◽  
The Cost ◽  
Structured Questionnaire ◽  
Value Added Products

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. 

scholarly journals El Entorno Macroeconómico Y Su Influencia En La Competitividad En El Sector Turismo En México

Xihmai ◽  
2013 ◽  
Vol 8 (16) ◽  
Author(s):  
Jesús Amador Valdés Dí­az de Villegas
Keyword(s):  
Value Added ◽  
Tourism Demand ◽  
Demand And Supply ◽  
Factors Affecting ◽  
Local Resources ◽  
Tourism Sector ◽  
Tourism Enterprises ◽  
The Impact ◽  
Macroeconomic Environment ◽  
Value Added Products

Resumen En el caso del sector turismo, su competitividad  se define como la capacidad de un destino para crear e integrar productos con valor añadido, de tal forma que se logren empelar los recursos locales y que se logre mantener su posición dentro del mercado  (Hassan, 2000). Para México el Sector Turismo tiene gran importancia, por su participación en el PIB, el análisis de los factores que influyen en su nivel de eficiencia es fundamental, dado que de ella depende el nivel de competitividad. Estos factores pueden ser exógenos (los que determinan el entorno) y endógenos propios de la empresa. El objetivo en el trabajo es analizar el entorno macroeconómico en que se desarrollan las empresas turí­sticas en México y el impacto en los grados de competitividad para las empresas que se encuentran dentro del sector. Por tanto para lograr este fin, se parte metodológicamente de variables que determinan las prioridades del consumo del bien turí­stico (ocio e ingreso), para poder realizar el análisis de la demanda y de la oferta turí­stica, involucrando solo otras variables exógenas al  entorno macroeconómico siempre y cuando sean requeridas por el estudio. Palabras Claves: Entorno Macroeconómico, Competitividad, Turismo, Demanda turí­stica, Oferta turí­stica   Abstract For the tourism sector, its competitiveness is defined as the ability of a destination to create and integrate value-added products, so as to achieve empelar local resources and is able to maintain its market position (Hassan, 2000). For Mexico the Tourism Sector is very important, for its share of GDP, the analysis of the factors affecting their efficiency is critical, since it depends on the level of competitiveness. These factors may be exogenous (which determine the environment) and endogenous own company. The objective is to analyze the macroeconomic environment in which they develop tourism enterprises in Mexico and the impact on the degree of competitiveness for businesses that are within the sector. So to this end, is methodologically part of variables that determine the priorities of the good tourist consumption (leisure and income), to perform the analysis of the demand and supply of tourism, involving only other exogenous macroeconomic variables always and when required by the study Keywords: Macroeconomic Environment, Competitiveness, Tourism, tourism demand, tourism Offer

scholarly journals Prescreening Consumer Acceptance for Edible Lotus Rhizome

2016 ◽  
Vol 26 (5) ◽  
pp. 657-662
Author(s):  
Togo M. Traore ◽  
Deacue Fields ◽  
Floyd M. Woods ◽  
Amy N. Wright ◽  
Kenneth M. Tilt ◽  
...  
Keyword(s):  
United States ◽  
Consumer Choice ◽  
Southeastern United States ◽  
Value Added ◽  
Consumer Preference ◽  
Consumer Acceptance ◽  
Niche Markets ◽  
Factors Affecting ◽  
Willingness To Recommend ◽  
Value Added Products

Lotus (Nelumbo nucifera Gaertn.) is an underused edible aquatic perennial vegetable currently evaluated as a potential functional food source and promoted in the southeastern United States as a rich source of phytonutrients. There is a paucity of information concerning consumer acceptance and willingness to purchase edible, value-added lotus products in the southeastern United States. The purpose of this exploratory study was to evaluate the potential demand and consumer preference for fresh lotus rhizomes and value-added products namely lotus salad, baked lotus chips, and lotus stir-fry. Results of two taste panels indicated that lotus stir-fry was the most preferred value-added product with 77% of participants strongly liking stir-fry, whereas 92% of the participants were willing to recommend this preparation. Results suggest socioeconomic characteristics such as gender (P = 0.014), age (P = 0.005), income (P = 0.043), education (P = 0.003), shopping habits (P = 0.013), and type of meal purchased (P = 0.004) are the factors affecting consumer choice and willingness to recommend lotus stir-fry. Results provide information on consumer acceptance of fresh lotus rhizomes and value-added products. Findings of this case study will assist in analyzing consumer behavior and development of sustainable niche markets for locally cultivated fresh edible lotus rhizomes.

OPPORTUNITIES FOR STRATEGIC DEVELOPMENT OF BIO-ECONOMY IN THE FOOD AND TOURISM INDUSTRY

2018 ◽  
Vol 28 (5) ◽  
pp. 1681-1684
Author(s):  
Georgi Toskov ◽  
Ana Yaneva ◽  
Stanko Stankov ◽  
Hafize Fidan
Keyword(s):  
National Level ◽  
Value Added ◽  
Tourism Industry ◽  
Small Companies ◽  
Food Sector ◽  
Strategic Development ◽  
Innovation Potential ◽  
Wide Range ◽  
Foreign Brands ◽  
Value Added Products

The European Commission defines the bioeconomy as "the production of renewable biological resources and the conversion of these resources and waste streams into value added products, such as food, feed, bio-based products and bioenergy. Its sectors and industries have strong innovation potential due to their use of a wide range of sciences, enabling and industrial technologies, along with local and implied knowledge." The Bulgarian food industry faces a lot of challenges on the local and national level, which have direct influence on the structure of the production companies. Most of the enterprises from the food sector produce under foreign brands in order to be flexible partners to the large Bulgarian retail chains. The small companies from the food sector are not able to develop as an independent competitive producer on the territory of their local markets. This kind of companies rarely has a working strategy for positioning on new markets. In order to consolidate their already built positions for long period of time, the producers are trying to optimize their operations in a short term. However, the unclear vision of the companies for the business segment does not allow them to fully develop. Tourism in Bulgaria is a significant contributor to the country's economy.

Oxidized indium with transformable dimensions for CO2 electroreduction toward formate aided by oxygen vacancies

2020 ◽  
Vol 4 (7) ◽  
pp. 3726-3731
Author(s):  
Fenghui Ye ◽  
Jinghui Gao ◽  
Yilin Chen ◽  
Yunming Fang
Keyword(s):  
Crucial Role ◽  
Oxygen Vacancies ◽  
Value Added ◽  
Promising Technique ◽  
Co2 Electroreduction ◽  
Value Added Products

Electroreduction of CO2 into value-added products is a promising technique in which the structure of the catalyst plays a crucial role.

scholarly journals β-Galactosidases from a Sequence-Based Metagenome: Cloning, Expression, Purification and Characterization

2020 ◽  
Vol 9 (1) ◽  
pp. 55
Author(s):  
María Florencia Eberhardt ◽  
José Matías Irazoqui ◽  
Ariel Fernando Amadio
Keyword(s):  
Bacterial Species ◽  
Value Added ◽  
Raw Material ◽  
Activity Levels ◽  
Treatment Technology ◽  
Catalytic Domains ◽  
Stabilization Ponds ◽  
Cazy Database ◽  
Genes Encoding ◽  
Value Added Products

Stabilization ponds are a common treatment technology for wastewater generated by dairy industries. Large proportions of cheese whey are thrown into these ponds, creating an environmental problem because of the large volume produced and the high biological and chemical oxygen demands. Due to its composition, mainly lactose and proteins, it can be considered as a raw material for value-added products, through physicochemical or enzymatic treatments. β-Galactosidases (EC 3.2.1.23) are lactose modifying enzymes that can transform lactose in free monomers, glucose and galactose, or galactooligosacharides. Here, the identification of novel genes encoding β-galactosidases, identified via whole-genome shotgun sequencing of the metagenome of dairy industries stabilization ponds is reported. The genes were selected based on the conservation of catalytic domains, comparing against the CAZy database, and focusing on families with β-galactosidases activity (GH1, GH2 and GH42). A total of 394 candidate genes were found, all belonging to bacterial species. From these candidates, 12 were selected to be cloned and expressed. A total of six enzymes were expressed, and five cleaved efficiently ortho-nitrophenyl-β-galactoside and lactose. The activity levels of one of these novel β-galactosidase was higher than other enzymes reported from functional metagenomics screening and higher than the only enzyme reported from sequence-based metagenomics. A group of novel mesophilic β-galactosidases from diary stabilization ponds’ metagenomes was successfully identified, cloned and expressed. These novel enzymes provide alternatives for the production of value-added products from dairy industries’ by-products.

scholarly journals Milk Fat Globule Membrane Proteome and Micronutrients in the Milk Lipid Fraction: Insights into Milk Bioactive Compounds

Dairy ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 202-217
Author(s):  
Michele Manoni ◽  
Donata Cattaneo ◽  
Sharon Mazzoleni ◽  
Carlotta Giromini ◽  
Antonella Baldi ◽  
...  
Keyword(s):  
Milk Fat ◽  
Lipid Fraction ◽  
Value Added ◽  
Milk Lipid ◽  
Milk Fat Globule Membrane ◽  
Fat Globules ◽  
Milk Fat Globules ◽  
Milk Fat Globule ◽  
Fat Globule ◽  
Value Added Products

Milk lipids are composed of milk fat globules (MFGs) surrounded by the milk fat globule membrane (MFGM). MFGM protects MFGs from coalescence and enzymatic degradation. The milk lipid fraction is a “natural solvent” for macronutrients such as phospholipids, proteins and cholesterol, and micronutrients such as minerals and vitamins. The research focused largely on the polar lipids of MFGM, given their wide bioactive properties. In this review we discussed (i) the composition of MFGM proteome and its variations among species and phases of lactation and (ii) the micronutrient content of human and cow’s milk lipid fraction. The major MFGM proteins are shared among species, but the molecular function and protein expression of MFGM proteins vary among species and phases of lactation. The main minerals in the milk lipid fraction are iron, zinc, copper and calcium, whereas the major vitamins are vitamin A, β-carotene, riboflavin and α-tocopherol. The update and the combination of this knowledge could lead to the exploitation of the MFGM proteome and the milk lipid fraction at nutritional, biological or technological levels. An example is the design of innovative and value-added products, such as MFGM-supplemented infant formulas.

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