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Project:Bioactive peptides 2
Description:Production of bioactive peptides from urban pruning by hydrolysis and fermentation with a yeast that produces protein. The proteins are hydrolysed and peptides are concentrated by ultra and nano filtration and a flash evaporator. Afterwards, the peptides are dried in a drum drier.

Selected functional unit
QuantityUnitFunctional unit description
1kgProduction of 1 kg of dried bioactive peptides from urban pruning.

Input materials
QuantityUnitDescription
50kgUrban pruning waste biomass
45kgProcess water for hydrolysis and fermentation stages
0.02kgProtein-producing yeast culture inoculum
0.5kgEnzymes or acids required for the hydrolysis process
Output materials
QuantityUnitDescription
49kgResidual lignocellulosic biomass from urban pruning hydrolysis.
45kgWastewater and evaporated process water from drying stages.
0.52kgSpent yeast culture and residual enzymatic materials.
Energy inputs
QuantityUnitDescription
3.8kWhElectricity for mixing and temperature control during hydrolysis and fermentation.
0.65kWhElectrical energy for pumping systems in ultrafiltration and nanofiltration stages.
4.5kWhThermal energy required for the concentration of peptides in flash evaporator.
1.2kWhEnergy consumption for the final drying stage in the drum drier.
Energy outputs
QuantityUnitDescription
0kWhNo energy produced
CO2eq emitted
QuantityUnitDescription
1.558Kg CO2eqElectricity for mixing and temperature control during hydrolysis and fermentation.
0.267Kg CO2eqElectrical energy for pumping systems in ultrafiltration and nanofiltration stages.
1.845Kg CO2eqThermal energy required for the concentration of peptides in flash evaporator.
0.492Kg CO2eqEnergy consumption for the final drying stage in the drum drier.
1.2Kg CO2eqDirect biogenic CO2 emissions from yeast fermentation during protein production
Captured CO2eq
QuantityUnitDescription
0Kg CO2eqNo energy produced
0Kg CO2eqNo CO2eq absorbed

Production of 1 kg of dried bioactive peptides from urban pruning.