Journal
MOLECULES
Volume 25, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/molecules25030488
Keywords
lignocellulosic biomass; protein extraction; subcritical water extraction; protein characterization
Funding
- China Scholarship Council (CSC) [201508080008, 201508080044]
- Bioeconomy Graduate Program of the State of Baden-Wurttemberg, Germany, BBW ForWerts (Baden-Wurttemberg, Germany) [200045]
- European Union [721991]
Ask authors/readers for more resources
This study selected three representative protein-rich biomass-brewer's spent grain (BSG), pasture grass (PG), and cyanobacteria (Arthrospira platensis; AP) for protein extraction with different extraction methods (alkaline treatment, aqueous extraction, and subcritical water extraction). The yield, purity, molecular weight, oil-water interfacial tension, and thermal stability of the obtained proteins derived from different biomass and extraction methods were comprehensively characterized and compared. In the view of protein yield and purity, alkaline treatment was found optimal for BSG (21.4 and 60.2 wt.%, respectively) and AP (55.5 and 68.8 wt.%, respectively). With the decreased oil-water interfacial tension, the proteins from all biomass showed the potential to be emulsifier. BSG and AP protein obtained with chemical treatment presented excellent thermal stability. As a novel method, subcritical water extraction is promising in recovering protein from all three biomass with the comparable yield and purity as alkaline treatment. Furthermore, the hydrolyzed protein with lower molecular weight by subcritical water could promote its functions of foaming and emulsifying.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available