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Showing result 1 - 5 of 58 essays matching the above criteria.

1. 1. Cultivation of Yarrowia lipolytica on a hydrolysate based on food waste

   University essay from SLU/Department of Molecular Sciences

   Author : Hanna Norrman; [2023]
   Keywords : Yarrowia lipolytica; hydrolysate; food waste; fish feed; volatile fatty acids;

   Abstract : Interest in replacing fish oil and fish meal as fish feed ingredients with more socially, environmen-tally, and economically sustainable alternatives has increased in recent years. One such alternative could be the use of yeast biomass. READ MORE

3. 2. Using biological conversion to increase the value of short-chain fatty acids by mixed cultures

   University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Author : Elisabeth Beach; [2023]
   Keywords : Ethanol; Mixed culture; Volatile fatty acids; Anaerobic digestion;

   Abstract : The development of anaerobic digestion processes has gained recognition for its potential for producing volatile fatty acids alongside bio-alcohols. In addition, the fermentation process and the products produced from biological fermentation have the possibility to overcome the abundance of organic waste in our society, which is potentially immensely rich in untapped valuable potential products. READ MORE

4. 3. Isolation of an ammonia-tolerant syntrophic butyrate-oxidizing bacterium originating from a thermophilic biogas digester

   University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

   Author : Malin Tiefensee; [2023]
   Keywords : thermophilic; ammonia-tolerant; syntrophic butyrate-oxidizing bacterium;

   Abstract : Syntrophic relationships between fatty acid degrading bacteria and hydrogenotrophic methanogens are important for a well-functioning anaerobic degradation process during biogas production from organic waste material. This is particularly important in biogas processes fed protein-rich material as their degradation gives rise to high levels of ammonia, which inhibits many microorganisms. READ MORE

5. 4. High-loaded thermophilic anaerobic digestion of mixed sewage sludge : A pilot study

   University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Author : Santiago Elejalde Bolaños; [2022]
   Keywords : thermophilic anaerobic digestion; volatile fatty acids; mixed sludge; organic loading rate; alkalinity; wastewater treatment plant; termofil rötning; flyktiga fettsyror; blandslam; organisk belastning; alkalinitet; avloppsreningsverk;

   Abstract : Municipal wastewater treatment plants (WWTP) are important infrastructural components in a society and also important for sustainability. In a WWTP the most common treatment configuration is mechanical, biological, and chemical treatment of the wastewater. READ MORE

6. 5. Production of filamentous fungal biomass on waste-derived volatile fatty acids for ruminant feed supplementation and it's in vitro digestion analysis

   University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Author : Mohammadali Bouzarjomehr; [2022]
   Keywords : VFAs volatile-fatty-acids ; Fungi production; Feed production.; Fermentation processes; Aspergillus oryzae; A. oryzae fungal biomass; Sustainability; Rumen fluids; Evaluation of the digestibility of the produced fungal biomass; TT method analysis; Gas production method; Nylon bag method analysis;

   Abstract : Single cell proteins such as that of edible filamentous fungal biomass are considered as a promising sustainable source of animal feed supplementation. Filamentous fungi can be cultivated on different organic substrates including volatile fatty acids (VFAs) such as acetic, propionic, and butyric acids. READ MORE