Publications by authors named "J Magdalena"
Article Synopsis
- Wine lees, a waste product from winemaking, have untapped potential for producing valuable compounds like carboxylic acids, particularly acetate, due to their high ethanol and low carbohydrate levels.
- In a study, both white and red wine lees were tested for anaerobic acetate production under specific conditions, revealing that white wine lees had similar fermentation success with endogenous microbes as with added inoculum, while red wine lees performed poorly without external help.
- The research showed that acetate consistently made up a large portion of the end products (58-72%), and when red wine lees were co-fermented with activated sludge, additional fatty acids like caproate and heptanoate were produced, indicating strong potential for integrating this process into bi
In this study, wine lees and waste activated sludge (WAS) were co-fermented for the first time in a 4:1 ratio (COD basis) at 20, 40, 70 and 100 gCOD/L, in batch at 37 °C and pH 7.0. The substrates were successfully converted to caproate (C6) and heptanoate (C7) with a high selectivity (40.
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- Single cell protein (SCP) is being explored as a sustainable protein source by utilizing waste materials in a circular economy, focusing on using gaseous substrates for safer and cleaner production.
- The study used a consortium of phototrophic purple bacteria (PPB) to generate SCP from hydrogen (H) and carbon monoxide (CO), finding that optimal growth conditions occurred at pH 7, 25°C, and light intensities above 30 W·m.
- Results showed high biomass and protein yields, with over 50% protein content in the resulting SCP, indicating its efficiency and potential for use as animal feed.
Global reliance on fossil oil should shift to cleaner alternatives to get a decarbonized society. One option to achieve this ambitious goal is the use of biochemicals produced from lignocellulosic biomass (LCB). The inherent low biodegradability of LCB and the inhibitory compounds that might be released during pretreatment are two main challenges for LCB valorization.
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