By Elliot Gulliver-Needham JLEN Environmental Assets Trust has sold off half of its anaerobic digestion portfolio to Future Biogas for £68.1m. The trust, which invests in environmental infrastructure assets, sold the facilities at their June valuation. After the deal, it will continue to own the other 49 per cent of its anaerobic digestion portfolio. Future Biogas is a specialist developer backed by 3i Infrastructure and has been the operator of the assets being sold off since JLEN purchased them between 2017 and 2019. £30m of the sale is funded by 3i. Located in the east of England, the anaer…