scholarly journals BIOFERTILIZATION WITH CHLOROPHYTA AND CYANOPHYTA: AN ALTERNATIVE FOR ORGANIC FOOD PRODUCTION

2020 ◽  
Vol 25 (2) ◽  
pp. 303-313
Author(s):  
Martha Lucia Ortiz-Moreno ◽  
Laura Vanessa Solarte-Murillo ◽  
Karen Ximena Sandoval-Parra
Keyword(s):  
Food Production ◽  
Organic Food ◽  
Limiting Factor ◽  
Atmospheric Nitrogen ◽  
Photosynthetic Organisms ◽  
Promote Plant Growth ◽  
High Production ◽  
High Production Cost ◽  
Available Information ◽  
Atmospheric Nitrogen Fixation

Chlorophyta and Cyanophyta are photosynthetic organisms characterized by their biochemical plasticity, which has allowed them to develop in different environments and have a faster growth rate than plants. Depending on the species and environmental conditions, these organisms can produce nitrogenous enzymes, for atmospheric nitrogen fixation; phosphatases, that solubilize phosphorus; phytohormones, that promote plant growth; and hygroscopic polysaccharides, that prevent erosion and improve soil characteristics. In this sense, the aim of this review was to analyze the available information on the use of Chlorophyta and Cyanophyta as biofertilizers and their potential application in organic food production. Multiple studies and researches were found demonstrating the advantages of these microorganisms when being used to improve plants productivity, and also at the same time, leading to sustainable agriculture that is respectful to the environment. However, their high production cost has become a limiting factor for their commercialization.

scholarly journals Mesophotic.org: a repository for scientific information on mesophotic ecosystems

Database ◽  
2019 ◽  
Vol 2019 ◽  
Author(s):  
Pim Bongaerts ◽  
Gonzalo Perez-Rosales ◽  
Veronica Z Radice ◽  
Gal Eyal ◽  
Andrea Gori ◽  
...  
Keyword(s):  
Large Scale ◽  
Scientific Information ◽  
Temporal Trends ◽  
Light Availability ◽  
Research Community ◽  
Future Research ◽  
Photosynthetic Organisms ◽  
Future Research Directions ◽  
Available Information ◽  
Reduced Light

Abstract Mesophotic coral ecosystems (MCEs) and temperate mesophotic ecosystems (TMEs) occur at depths of roughly 30–150 m depth and are characterized by the presence of photosynthetic organisms despite reduced light availability. Exploration of these ecosystems dates back several decades, but our knowledge remained extremely limited until about a decade ago, when a renewed interest resulted in the establishment of a rapidly growing research community. Here, we present the ‘mesophotic.org’ database, a comprehensive and curated repository of scientific literature on mesophotic ecosystems. Through both manually curated and automatically extracted metadata, the repository facilitates rapid retrieval of available information about particular topics (e.g. taxa or geographic regions), exploration of spatial/temporal trends in research and identification of knowledge gaps. The repository can be queried to comprehensively obtain available data to address large-scale questions and guide future research directions. Overall, the ‘mesophotic.org’ repository provides an independent and open-source platform for the ever-growing research community working on MCEs and TMEs to collate and expedite our understanding of the occurrence, composition and functioning of these ecosystems. Database URL: http://mesophotic.org/

Consumer perceptions and demand for organic food in Australia: Focus group discussions

2005 ◽  
Vol 20 (3) ◽  
pp. 155-167 ◽  
Author(s):  
Hui-Shung Chang ◽  
Lydia Zepeda
Keyword(s):  
Focus Group ◽  
Food Production ◽  
Organic Food ◽  
Organic Production ◽  
Farm Animals ◽  
Future Research ◽  
Focus Group Study ◽  
Organic Foods ◽  
Positive Outlook ◽  
Food Sales

AbstractIn Australia, the retail value of organic food production was estimated at A$250 million, with farm-gate value at around A$90 million and exports at around A$40 million, in 2002. The current share of organic sales in total food sales in Australia is about 1%. The growth rate in organic production was forecast to continue at 10–30% per annum. Despite the positive outlook, there are consumer concerns about product recognition and product integrity. To understand how demand for organic products is changing, it is important to investigate consumer attitudes and knowledge about these issues. The objective of this study was to identify issues that may hinder or promote demand. Given the qualitative nature of these issues, we used a focus group study to probe consumers. While focus group results are a qualitative approach and not intended to be generalizable, the results suggest directions for future research. The participants raised concerns about the use of chemicals, the treatment of farm animals and the environmental impact of food production. Organic food consumers were found to be more knowledgeable about organic foods, as well as being more tolerant of higher prices and inaccessibility. The results also suggest that increasing consumers' awareness of organic farming and certification, as well as the availability of organic foods, may be the most effective way of moving organic foods into mainstream.

A feedback controller for milling chatter vibration control using a new response matrix

2021 ◽  
pp. 107754632098820
Author(s):  
Bashir B Muhammad ◽  
Muhammad Bashir ◽  
Mukhtar F Hamza ◽  
Mustapha Abdulhadi ◽  
Muhammad A Shehu ◽  
...  
Keyword(s):  
Controller Design ◽  
Industrial Process ◽  
Milling Process ◽  
Feedback Controller ◽  
Response Matrix ◽  
Chatter Vibration ◽  
Active Feedback ◽  
High Production ◽  
High Production Cost ◽  
Milling Chatter

A chatter mark is a result of irregular vibration that affects the milling process, which results in poor surface finish, reduced work quality, machine impairment, and high production cost. This work presents an active feedback controller design using a new response matrix to suppress the free vibration in the milling process. The proposed controller considers feed rate, tooth passing frequency, and time-varying dynamic milling force coefficients. A milling experiment verifies the effect of the proposed method. The method provides a reliable way of tackling chatter vibration in an industrial process. The procedure is technically and economically beneficial.

scholarly journals Agroecologia: Perspectivas e Desafios para a Agricultura Familiar

2021 ◽  
Vol 24 (5-esp.) ◽  
pp. 496-503
Author(s):  
Larisse Medeiros Gonçalves ◽  
Caroline Viganó ◽  
Chaiane Renata Grigolo ◽  
Pedro Henrique da Silva Monteiro ◽  
Thiago de Oliveira Vargas ◽  
...  
Keyword(s):  
Food Production ◽  
Organic Food ◽  
Technical Information ◽  
Organic Production ◽  
Marketing Strategies ◽  
Control Mechanisms ◽  
Sustainable Rural Development ◽  
Vast Number ◽  
Production Techniques ◽  
The Government

Embora a produção sustentável e a agroecologia tenham relevância e vasta quantidade de artigos, há insuficiência de materiais sistemáticos que auxiliem no emprego operativo das características sustentáveis na produção. Esse trabalho traz uma base conceitual que direciona para a sistematização pragmática, no que diz respeito à produção orgânica, por meio de uma revisão bibliográfica. A produção de alimentos em sistemas agroecológicos tem por princípios a adoção de práticas de uso saudável e consciente dos recursos naturais. A produção de orgânicos no Brasil vem apresentando crescimento significativo. Esse avanço está sendo possível devido ao modelo diversificado dos mecanismos de controle de qualidade para produtos de origem ecológica, uma vez que há maior acesso para o registro dos mesmos. Porém, o setor enfrenta várias dificuldades, como problemas de logística, processos burocráticos na certificação e déficit de insumos, além de carência de informações técnicas. Para que tais barreiras sejam superadas, investimentos em pesquisas científicas para aprimorar as técnicas de produção e estratégias de marketing para promoção dos alimentos orgânicos são recursos indispensáveis para o avanço do sistema. Além disso, o governo deve desenvolver políticas para ampliação da produção, oferta e consumo de produtos orgânicos para fortalecer e incentivar tal modelo produtivo.   Palavras-chaves: Alimentos Orgânicos. Certificação. Sistemas Agroecológicos, Desenvolvimento Rural Sustentável.  Abstract Although sustainable production and agroecology have relevance and a vast number of articles, there is a lack of systematic materials that assist in the operational use of sustainable characteristics in production. This work provides a conceptual basis that leads to pragmatic systematization, regarding organic production, through a bibliographic review. The food production in agroecological systems is based on the adoption of healthy and conscious use of natural resources practices. Organic production in Brazil has been showing significant growth. This progress is being made possible due to the diversified model of quality control mechanisms for ecological origin products, since there is greater access to their registration. However, the sector faces several difficulties, such as logistical problems, bureaucratic processes in certification and deficit of inputs, in addition to a lack of technical information. For these barriers to be overcome, investments in scientific research to improve production techniques and marketing strategies for promoting organic food are indispensable resources for the system advancement. In addition, the government must develop policies to expand the production, supply and consumption of organic products to strengthen and encourage such a productive model.    Keywords: Organic Food. Certification. Agroecological Systems. Sustainable Rural Development.  

scholarly journals Fermentative Production of Mannosylerythritol Lipids using Sweetwater as Waste Substrate by Pseudozyma antarctica (MTCC 2706)

2021 ◽  
Vol 58 (4) ◽  
pp. 246-258
Author(s):  
Jayata Mawani ◽  
Jagruti Jadhav ◽  
Amit Pratap
Keyword(s):  
Soybean Oil ◽  
Industrial Applications ◽  
Commercial Production ◽  
Liquid Chromatography Mass Spectrometry ◽  
Mannosylerythritol Lipids ◽  
Pseudozyma Antarctica ◽  
Fermentative Production ◽  
Oil Concentration ◽  
High Production ◽  
High Production Cost

Abstract Mannosylerythritol lipids are glycolipid biosurfactants with promising industrial applications. However, their commercial production is hindered due to its high production cost. The current study investigates the use of sweetwater, a by-product of the fat-splitting industry in combination with soybean oil for the production of mannosylerythritol lipids using Pseudozyma antarctica (MTCC 2706). The optimum sweetwater and soybean oil concentration of 22% and 7% (w/v) yielded 7.52 g L–1and 21.5 g L–1 mannosylerythritol lipids at shake flask and fermenter level respectively. The structure and functional groups of mannosylerythritol lipids were confirmed by fourier transform infrared (FTIR) spectroscopy, liquid chromatography-mass spectrometry (LC/MS) and 1H- and 13C-nuclear magnetic resonance (NMR) analysis. Surfactant properties, such as surface tension, critical micelle concentration, foaming and emulsification of mannosylerythritol lipids were also explored.

Direct Distribution of Organic Produce: Sustainable Food Production in Industrialized Countries

1995 ◽  
Vol 24 (2) ◽  
pp. 121-125 ◽  
Author(s):  
Jane Powell
Keyword(s):  
Food Production ◽  
Organic Food ◽  
Local Area ◽  
Industrialized Countries ◽  
Sustainable Food ◽  
Sustainable Food Production ◽  
Marketing Systems ◽  
Organic Produce ◽  
Opening Up ◽  
Direct Distribution

There is growing interest in local organic food nowadays, prompted by concerns about health, care of the environment and excessive transportation and packaging of produce. But conventional marketing systems are not really able to cater for such demands, because they operate on too large a scale. In recent years a solution to the problem has appeared: direct links between growers and consumers, within the same local area. Some of these are growing rapidly, opening up exciting possibilities for the development of sustainable food production and marketing, and for building new links between cities and the countryside.

Youth Entrepreneurship in the Circular Economy

2020 ◽  
pp. 345-360
Author(s):  
Idahosa Igbinakhase
Keyword(s):  
Renewable Energy ◽  
Waste Management ◽  
Circular Economy ◽  
Critical Analysis ◽  
Food Production ◽  
Economic Impacts ◽  
Organic Food ◽  
Waste Prevention ◽  
Business Environments ◽  
Youth Entrepreneurship

The chapter focuses on the critical analysis of youth entrepreneurship in a circular economy. Youth entrepreneurs are important stakeholders in the circular economy operated in both developing and developed business environments. Youth entrepreneurial business activities include renewable energy, recycling, waste management, and organic food production. Youth entrepreneurial business activities are known to create both social and economic impacts in business environments despite the presence of several limiting issues and challenges that affect their overall potential as circular value creators in the circular economy. Some challenges experienced by youth entrepreneurs in a circular economy include waste prevention and lack of new and innovative circular technologies. In addition, key solutions to the challenges faced by youth entrepreneurs in a circular economy were discussed and analyzed.

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