Surfactant-assisted green liquor dregs pretreatment to enhance the digestibility of paper mill sludge

Stimulating the Fermentation Process of Industrial Food Waste via Nonionic Surfactant/Graphene Nanosheet Combined Supplementation

“…Rorke with the supplementation of T80. 21 The reducing sugar released was incremented from 15 g/L to more than 20 g/L at increasing T80 concentration from 2.5 to 5.0%. Likewise, Tawfik et al described that hydrolytic enzyme activities were increased due to graphene/hydroxyapatite nanoparticle (NP) supplementation, leading to higher protein and carbohydrate degradation efficiencies.…”

“…In particular, Polysorbate 80 (commercially known as Tween 80) was selected as a model for nonionic surfactants since it has been previously examined for improving biohydrogen productivity of the palm oil mill effluent (POME), 34 organic fraction of municipal solid waste (OFMSW), 27 and paper mill sludge. 21 Polysorbate 80 (Tween 80) was purchased from Sigma-Aldrich. Tween 80 is a nonionic surfactant and emulsifier often used in the food and cosmetic industries.…”

“…20 Surfactant, a blend of a surface-active agent, is another promising additive to improve hydrolytic digestibility, resulting in higher organic bioconversion and eventually boosting biohydrogen productivity. 21 Surfactants adjust the substrate structure to be more accessible to enzymes and facilitate the desorption of enzymes from the substrate, improving the enzyme−substrate interaction. According to Qing et al, surfactant supplementation increased digestibility by enhancing substrate solubility, modifying the biomass surface, and minimizing nonproductive enzyme adsorption.…”

“…Surfactant, a blend of a surface-active agent, is another promising additive to improve hydrolytic digestibility, resulting in higher organic bioconversion and eventually boosting biohydrogen productivity . Surfactants adjust the substrate structure to be more accessible to enzymes and facilitate the desorption of enzymes from the substrate, improving the enzyme–substrate interaction.…”

Lignocellulose dissociation with biological pretreatment towards the biochemical platform: A review

“…To reduce the expenditure as much as possible, existing research integrates enzymatic hydrolysis and fermentation, which simplifies the operation steps. Compared to separate hydrolysis and fermentation (SHF) processes, simultaneous saccharification and fermentation (SSF) has a low contamination risk and increases the hydrogen yield [ 147 ]. Conversely, the consolidated bioprocessing (CPB) process encompasses the whole biotransformation process, further reducing the investment cost.…”