Fermentative Production of L‐Lysine‐L‐lactate with Fractionated Press Juices from the Green Biorefinery

Abstract

Lactic acid (LA) is a platform chemical for a future bio-based economy. Aminium lactates act as intermediates for the production of lactic acid sequence products like lactide. It could be demonstrated that, after separation of proteins from alfalfa press juice, the supernatant can be used as fermentation media for the production of the aminium lactate, L-lysine-L-lactate.

Cultivation and Fractionation of Leguminous Biomass for Lactic Acid Production

“…The juices, featuring a variety of nitrogen-containing compounds and inorganic salts, can act as a substitute for synthetic nutrients. 8,9 Already existing processes, like the microbial PHA-production, can become more efficient due to lower feedstock costs. 10 Numerous investigations have been made into alfalfa press juices.…”

“…These studies demonstrate that alfalfa press juices can act as a substitute for MRS, a synthetic nutrient, in lactic acid production, cutting processing costs. 8,9,11 Cultivation and Fractionation of Leguminous Biomass for Lactic Acid Production Chemical industries are set to increase the proportion of renewable feedstock in their production in the decades ahead. Green Biorefineries that divide fresh green biomass into cakes and juice deliver valuable products for various industrial uses.…”

A spatially explicit techno‐economic assessment of green biorefinery concepts

“…The content of WSC, which is essential for fermentation products, ranges from about 330–450 g kg –1 dm for clover and Italian ryegrass . The lactic acid yield by continuous fermentation of grass‐ or grass silage juices ranges from 0.9 to 1.0 g g –1 WSC …”

Development of Green Biorefinery for Biomass Utilization: A Review

“…A recent study has demonstrated that, after separation of proteins from alfalfa press juice, the supernatant can be used as fermentation media for the production of the ammonium lactate, L-lysine-L-Lactate, which acts as intermediates for the production of lactic acid sequence products like lactide (Leiß et al 2010). Another study evaluated the possibility of recovery of lactic acid from various grass silages through a two-step process, in which the crude liquid press extract was pre-treated with ultrafiltration membranes followed by purification with mono-polar electrodialysis (Danner et al 2000).…”