Uri Marchaim

Uri Marchaim
Migal - Galilee Technology Center | MIGAL · Biotechnology and Regional Development

About

33
Publications
2,489
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
605
Citations
Citations since 2016
1 Research Item
205 Citations
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040

Publications

Publications (33)
Technical Report
Full-text available
The aim of the PoliRuralDigital Innovation Hub (DiH)is to offer a public user interface and introduction to the innovationsof the project. To this end, the DiH entry point is built on a content management system. Furthermore, the DiH will provide four distinctive sections, or spaces, that cater for both internal and external users:1.An interaction...
Research
Full-text available
In the animal food processing industry (poultry & fish), there is a pressing need to solve the ecological problems of disposing and processing the waste. Our research results show a promising way to solve this problem..
Research
Full-text available
In the animal food processing industry (poultry & fish), there is a pressing need to solve the ecological problems of disposing and processing the waste. Our research results show a promising way to solve this problem..
Research
In the animal food processing industry (poultry & fish), there is a pressing need to solve the ecological problems of disposing and processing the waste. Our research results show a promising way to solve this problem..
Research
Full-text available
In the animal food processing industry (poultry & fish), there is a pressing need to solve the ecological problems of disposing and processing the waste. Our research results show a promising way to solve this problem..
Research
Full-text available
Ten research institutes with thirteen researchers took part in the research propodal that was submitted in 2004. The project aim was to increase the utilization of waste from the poultry processing industry while contributing to improved food quality and safety, reducing the environmental impact of the waste and generated high added value products.
Research
Full-text available
The problem of processing organic waste is very important especially in countries with high population densities, such as Israel. The use of organic waste as a substrate for breeding house fly (musca domestica) and blow fly (Phaenicia sericata) larvae is proposed as an innovative low - cost and low - maintenance approach to solving the problem.
Article
Full-text available
Agricultural, Industrial, and household wase contaminates the environment, distrupt the food chain, and spread infectious diseases. Fly larvae digest animal waste and in so doing significantly reduce their volume and convert the waste to materials that can be used as food additives and fertilizers for organic farming. Larvae of L.sericata and S. ca...
Article
Full-text available
There is currently no market in Israel for the large amounts of waste from fish- and poultry-processing plants. Therefore, this waste is incinerated, as part of the measures to prevent the spread of pathogens. Anaerobic methanogenic thermophilic fermentation (AMTF) of wastes from the cattle-slaughtering industry was examined previously, as an effec...
Conference Paper
Full-text available
The anaerobic metanogenic thermophilic fermentation (AMTF) process was applied to the wastes on the laboratory scale and digestion via rearing of green bottle fly (Paenicia sericata) and house fly (Musca domestica) larvae on the untreated raw material was done on a small scale and showed remarkable growth rates. Bacterial contents before and after...
Article
This article presents the achievements of a programme at a research and development institute in Israel, where researchers in biology, biotechnology, agriculture, and chemistry supervised talented high-school students in performing research work and guided them in preparing individual matriculation projects. Not only did a number of the students' d...
Article
During the manufacture of instant coffee, the finished product is only 33% of the raw material. The remainder, solid and liquid wastes, must be removed from the factory and dumped, at considerable cost and to the detriment of the environment. We investigated the anaerobic methanogenic thermophilic digestion (AMTD) of wastes from an instant coffee f...
Article
A large amount of solid waste remains after the production of instant coffee. This waste has to be moved to dumps, where it poses a threat of environmental pollution. Treatment of this waste by anaerobic methanogenic thermophilic digestion produced, besides biogas, a digested slurry which was used as a growth medium for horticulture, and proved to...
Article
The aim of this study was to examine the ratio of propionic to acetic acids as a viable and sensitive indicator for upsets caused by organic overloading in an anaerobic digestion system.An anaerobic bacterial population, adapted to glucose (anaerobically digested cow manure fed daily with glucose for 27 days) was used. Biogas production and composi...
Article
Anaerobic methanogenic thermophilic digestion (AMTD) of the solid fraction of waste from an instant coffee factory was carried out in laboratory scale digesters. Optimal conditions were established for stable fermentation by controlling loading rates, pH, volatile fatty acid concentrations, biogas production and composition. The results of the expe...
Article
In the process of producing “instant coffee”, large quantities of relatively solid waste (20%) are left, causing ecological harm to the area by polluting ground water, and which therefore have to be carted from the factory and dumped, at considerable expense. Several solutions and alternative uses of the coffee wastes have already been examined (as...
Article
The results of operating a pilot plant for the anaerobic methanogenic thermophilic digestion of wastes in an industrial slaughterhouse in Israel are described. A substantial advantage of the process arises from a product called ‘Peatrum’, which can be used commercially as a substitute for peat-moss, while the process simultaneously generates energy...
Article
Aimed at solving several major problems: 1) ecological difficulties caused by agricultural wastes; 2) energy prices steadily rising; and 3) animal and fish food costs soaring. The NEFAH project brings together scientific and practical knowledge from a broad range of engineering, environmental, biochemical, microbial, nutritional and economic aspect...
Article
The kibbutz, with its unique characteristics of a communal agricultural-industrial settlement, can provide an in situ model to examine problems involved in agricultural wastes management. A scheme is presented where the kibbutz, a producer of large quantities of agricultural, domestic and agro-industrial wastes, can utilize these wastes to reduce e...
Article
The turnover times of glucose, averaged for 0–10 m in the upper waters of Lake Kinneret and measured by the addition of single or multiple concentrations of substrate, ranged from 23 to 188 hours and 1 to 87 hours respectively. Potential uptake rates (estimated as Vmax) ranged from 0.095 to 1.94 g glucose l–1h–1, while measured uptake rates varied...
Article
The extent of inhibition of cotton-seed germination by lucerne saponins depends upon the period of pre-immersion in the saponin solution prior to germination. After 5 hr of pre-immersion in a 0.5% lucerne saponin solution, a 40% drop in germination was noted. The respiration rate decreased after 3 hr of pre-immersion. The diffusion of oxygen throug...
Article
The anatomy of the brown coat and white "membrane" of cotton seeds has been studied in relation to the inhibition of germination caused by lucerne saponins. Cationic, anionic, and nonionic surfactants were found to have an effect similar to that of saponins: they inhibited cotton seed germination and decreased the diffusion of oxygen through the se...
Article
The inhibitory effect of lucerne saponin on the respiration of cotton seeds was studied using 18O 2 . Oxygen consumption of saponin-treated seeds was 40–60% less than that of water-treated seeds. Embryos excised immediately after pre-immersion consumed oxygen in a manner similar to that after water or saponin treatment.
Article
The site of inhibition of cotton-seed germination by lucerne saponins seems to be associated with tissues other than the embryo. The rate of water uptake during imbibition was similar for intact seeds immersed in water and for those in 0.5 per cent saponin solution. Seeds previously immersed in saponin solution showed a lower rate of respiration, a...
Article
The inhibitory effect of alfalfa saponins on the germination of cotton seeds was primarily attributed to interference with the seedcoat and with the membrane. This effect was not due to impermeability to water.
Article
Developmental changes in the levels of α-amylase, procarboxypeptidase and chymotrypsinogen were studied in the pancreas of the chick embryo (developmental age 13–20 days) and the newly-hatched chick (development age 21–23 days). 1.1.|Levels of zymogens were determined by measuring the activity of the corresponding proteolytic enzyme after activatio...

Network

Cited By

Projects

Project (1)