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close this book Bioconversion of Organic Residues for Rural Communities (1979)
View the document From the charter of the United Nations University
View the document Foreword
close this folder Perspectives on bioconversion of organic residues for rural communities
View the document (introductory text)
View the document Introduction
View the document Sources of available nutrients
View the document The most suitable materials for bioconversion
View the document Characteristics of residues
View the document Bioconversion systems
View the document Physical and chemical treatments
View the document Microbial conversion
View the document The animal conversion phase
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View the document References
close this folder Availability of organic residues as a rural resource
View the document (introductory text)
View the document Discussion summary: Papers by van der Wal and Barreveld
close this folder Micro-organisms as tools for rural processing of organic residues
View the document (introductory text)
View the document Introduction
View the document Microbial utilization of mono- and di-saccharide residues
View the document Microbial conversion of starchy residues
View the document Microbial conversion of complex mixtures of compounds (Polysaccharides, Proteins, Lipids, etc.)
View the document Microbial utilization of cellulose and ligno-cellulose residues
View the document Algal culture as a source of biomass
View the document Microbial utilization of silviculture biomass
View the document Micro-organisms and marine and freshwater biomass
View the document International studies on processing organic residues
View the document References
close this folder Production of feed as an objective for bioconversion systems
View the document (introductory text)
View the document Introduction
View the document General characteristics
View the document Manure as feed
View the document Sewage-grown micro-algae
View the document Conclusion
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close this folder Environmental goals for microbial bioconversion in rural communities
View the document (introductory text)
View the document Introduction
View the document Health and water economy
View the document Fertilizer and energy economy
View the document Concluding remarks
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View the document Discussion summary: Papers by Porter, Berk and La Rivière
close this folder Strategies for developing small-scale fermentation processes in developing countries
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close this folder Production of microbial protein foods on edible substrates, food by-products, and ligno-cellulosic wastes
View the document (introductory text)
View the document Preface
View the document Introduction
View the document Contributions to the solution of nutritional problems
View the document Development of protein-rich vegetarian meat substitutes in the western world
View the document References
View the document Discussion summary
close this folder The role of ruminants in the bioconversion of tropical byproducts and wastes into food and fuel
View the document (introductory text)
View the document Introduction
View the document Nutritional limitations in the use of tropical by-products and waste
View the document Practical experience with tropical by-products and wastes as feed for ruminants
View the document An integrated system for converting tropical feeds and byproducts into milk, beef, and fuel
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View the document Discussion summary
close this folder Possible applications of enzyme technology in rural areas
View the document (introductory text)
View the document Introduction
View the document Biocatalytic processes
View the document Enzyme hydrolysis of manioc
View the document Whole cell systems
View the document Cellulose degradation and utilization
View the document Transfer of enzyme technology to rural communities
View the document Conclusions
View the document References
View the document Discussion summary
close this folder Indian experience with treated straw as feed
View the document (introductory text)
View the document Introduction
View the document Experience with straw treatment
View the document Field testing and demonstration of straw treatment
View the document General considerations
View the document Summary
View the document Annex 1. The energy efficiency of the two-stage, feed-fuel processing of straw in indian villages
View the document Annex 2. Method of calculating the value presented in table 2 for the efficiency of naoh energy usage
View the document Annex 3. Recommendations to farmers on the treatment of straw
View the document Annex 4. Calculated efficiency of milk production by straw-fed village buffaloes
View the document References
View the document Discussion summary
close this folder Indian experience with algal ponds
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View the document Introduction
View the document Cultivation of algae in wastes for feed
View the document Problems of contamination
View the document Cultivation of algae for biofertilizer
View the document References
View the document Acknowledgements
View the document Discussion summary
close this folder Organic residues in aquaculture
View the document (introductory text)
View the document Introduction
View the document The range of production in aquaculture
View the document The value of organic wastes
View the document Direct feeding
View the document Concluding remarks
View the document References
View the document Discussion summary
close this folder Biogas generation: developments. Problems, and tasks - an overview
View the document (introductory text)
View the document Introduction
View the document What is biogas?
View the document Microbiology of CH4, or bio-methanogenesis
View the document The biogas plant-some technical considerations
View the document Environmental and operational considerations
View the document Developments and processes for rural areas
View the document Cost-benefit analyses
View the document Health hazards
View the document Bottlenecks, considerations, and research and development
View the document References
View the document Discussion summary
close this folder Mushroom production technology for rural development
View the document (introductory text)
View the document Materials and methods for growing mushrooms under natural or field conditions
View the document Growing mushrooms under semicontrolled conditions
View the document Results and discussion
View the document References
View the document Discussion summary
close this folder The combination of algal and anaerobic waste treatment in a bioregenerative farm system
View the document (introductory text)
View the document Introduction
View the document Algae production on organic wastes
View the document The bioregenerative farm
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View the document Discussion summary
close this folder A continuous composting system for disposal and utilization of animal wastes at the village level
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View the document Status of land utilization and disposal of animal wastes
View the document A continuous composting system for land utilization of animal wastes at the village level
View the document References
close this folder Bioconversion of fruit and vegetable wastes
View the document (introductory text)
View the document State of the art of bioconversion
View the document Technical transfer
close this folder Integrated research on agricultural waste reclamation
View the document (introductory text)
View the document Introduction
View the document Production of yeast from soybean cooking waste at miso factories
View the document Application of soy waste as koji substrate for rice miso manufacturing (5, 6)
View the document Conclusion
View the document References
View the document Discussion summary
close this folder Solid state fermentation of starchy substrates
View the document (introductory text)
View the document Introduction
View the document Materials and methods
View the document Agro-economic perspectives
View the document Summary
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View the document Discussion summary
close this folder Production of single-cell protein from cellulose
View the document (introductory text)
View the document Introduction
View the document Experimental results
View the document Discussion
View the document Summary
View the document References
View the document Acknowledgements
View the document Discussion summary
close this folder Analysis of energy cost of integrated systems
View the document (introductory text)
View the document Energy cost and energy requirement
View the document Why energy analysis?
View the document Net energy intensity
View the document What criteria are offered by energy analysis?
View the document Conclusion
View the document References
close this folder Analysis of bioconversion systems at the village level
View the document (introductory text)
View the document Introduction
View the document Approach to bioconversion analysis
View the document Some results and costs from integrated systems
View the document Future development possibilities
View the document Conclusions
View the document Summary
View the document References
close this folder Nutritional evaluation of bioconversion products for farm animals
View the document (introductory text)
View the document Introduction
View the document Testing procedures for determination of nutritional value
close this folder Bioconversion products: toxicology - problems and potential
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View the document Summary
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close this folder Nutritional evaluation in humans
View the document (introductory text)
View the document Introduction
View the document Evaluation of products of bioconversion for human consumption
View the document Procedures for nutritional evaluation in humans
View the document The evaluation of various food products
View the document Concept of productivity
View the document Conclusions
View the document References
View the document Discussion summary: Papers by van Weerden, Shacklady, and Bressani
close this folder Biomass from organic residues for animal and human feeding
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View the document References
View the document Discussion summary
close this folder Appropriate biotechnology - summary remarks
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View the document References
close this folder Other UNU Publications
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View the document Books

Summary

Summary

Three different systems (bacterial, fungal, and yeast) of microbial degradation of cellulose have been described. At the present state of the art, the most promising technology is singlecell protein production by Aspergillus terreus. Continuous cultivation of Aspergillus terreus on treated solka-floc with more than 80 per cent utilization of cellulose indicates that SCP production from cellulose is economically feasible on a commercial scale. The importance of basic studies on the physiology of the organism under conditions of continuous cultivation in a chemostat was discussed.