Genencor International BV has recently developed a new enzyme product, C1-LC4, that in recent field trials has shown a promising 10% cost-reduction in the production of biogas from organic waste. Although the efficacy of the enzyme has clearly been shown, the current fermentation process does not provide sufficient yield in industrial production to be cost-effective for large-scale application. The objective of DEMETER is to increase the yield of this industrial fermentation process by at least 20%, improve the product recovery process by 40%, and reduce overall product cost by at least 15% while increasing the productivity of the process. In addition, DEMETER will demonstrate the efficacy of the enzyme in 8 field trials in biogas plants throughout Europe. The DEMETER consortium includes the entire value chain: enzyme producer Genencor International, enzyme retailer Miavit, the pilot plant BioBase Europe Pilot Plant, anaerobic digester expert OWS, independent biogas research centre DBFZ, Ciaotech for independent economic and environmental evaluation, and large farm, Biomoer, for field trials. DEMETER follows a multi-scale approach. First, the enzyme productivity will be improved on lab- and small pilot-scale, while obtaining insights for further scale-up. In parallel, the effect of enzymes on biogas yield will be quantified, using 5 commonly used biomass substrates. The improved fermentation and downstream process will be scaled up and demonstrated in a 15 000 L pilot plant. Finally, the improvement of the biogas production process due to the use of the C1-LC4 enzyme will be demonstrated in practice in 8 field trials. The results of these field trials will be fed back to further improve the production process and its yield. Ultimately, DEMETER will not only produce a fermentation process with increased yield, an improved product recovery process resulting in reduced production costs. The resulting product will lead to an increase in renewable biogas production in Europe.

SUSTAINEXT is led by Natac and brings together 21 partners from Europe and Spain, 7 of them from the Extremadura region. The project will start in June 2023 and will last four and a half years. In summary, the technological objective of the project is to implement on an industrial scale a digital, dynamic, versatile, disruptive and multi-product biorefinery, with a processing capacity of 20,000 tonnes per year and following a NetZero Carbon strategy. This first-of-its-kind flagship will transform the plant-based ingredients sector, while showcasing and deploying a first-of its kind model likely to be replicable by the whole European bio-based industry. SUSTAINEXT aims to transform Natac's current production plant, located in Hervás in the north of Extremadura, into the most modern, digital, innovative and sustainable plant extracts factory in the world, placing the company and the region at the forefront of the sector at a global level. The model is based in the integration of the whole supply chain - from feedstock to end users - applying a disruptive circular model based on a smart dynamic analytical biorefinery (DYANA): a smart dynamic biorefining process for the cascade valorisation of feedstocks which is optimized batch-wise according to the initial composition of the feedstock to deliver maximum value with minimum environmental impact and ensure resource efficiency. DYANA will allow to achieve the complete valorisation of the processed feedstock with a zero-waste and zero-emissions ambition. SUSTAINEXT will be industrially deployed with six sustainably and locally sourced European feedstocks. Three medicinal and aromatic crops (rosemary, camomile, and lemon verbena) will be cultivated in Extremadura in disused tobacco fields as an alternative towards healthier crops, and also between solar panels (agrivoltaics) enhancing soil use. Three agro-industrial side streams (olive, artichoke/cardoon, and pomegranate) will showcase how biomass upcycling represents an opportunity to give a new life to certain underexploited bio-based feedstocks. SUSTAINEXT flagship will deliver 46 plant-based healthy extracts and functional ingredients out of which 13 are totally new on the market and 12 are newly produced in Europe. It will generate a revenue of 271 M€, will create more than 5,000 new green jobs (direct and indirect) and will have a decisive socioeconomic impact in Extremadura.