Techno-economic assessment for the large-scale production of colloidal lignin particles

Ashok, Rahul Prasad Bangalore; Oinas, Pekka; Lintinen, Kalle; Golam, Sarwar; Kostiainen, Mauri A.; Österberg, Monika

doi:10.1039/c8gc02805b

Cited by 54 publications

(47 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Development of green technologies [74,75] for the preparation of bio(nano)materials [76] from the forest process side-streams such as adhesives and coatings [77,78] is increasing constantly. Different CLPs prepared and modified to adhere chamois and to modify CNF surface could be potential additives for various formulations to be exploited for wound sealing, edible coatings and fiber modification for textiles to improve adhesion, hydrophobicity, antimicrobial and antioxidative properties of the coatings.…”

Section: Discussionmentioning

confidence: 99%

Colloidal Lignin Particles as Adhesives for Soft Materials

et al. 2018

Self Cite

View full text Add to dashboard Cite

Lignin has interesting functionalities to be exploited in adhesives for medicine, foods and textiles. Nanoparticles (NPs) < 100 nm coated with poly (L-lysine), PL and poly(L-glutamic acid) PGA were prepared from the laccase treated lignin to coat nanocellulose fibrils (CNF) with heat. NPs ca. 300 nm were prepared, β-casein coated and cross-linked with transglutaminase (Tgase) to agglutinate chamois. Size exclusion chromatography (SEC) and Fourier-transform infrared (FTIR) spectroscopy were used to characterize polymerized lignin, while zeta potential and dynamic light scattering (DLS) to ensure coating of colloidal lignin particles (CLPs). Protein adsorption on lignin was studied by quartz crystal microbalance (QCM). Atomic force microscopy (AFM) was exploited to examine interactions between different polymers and to image NPs with transmission electron microscopy (TEM). Tensile testing showed, when using CLPs for the adhesion, the stress improved ca. 10 and strain ca. 6 times compared to unmodified Kraft. For the β-casein NPs, the values were 20 and 8, respectively, and for the β-casein coated CLPs between these two cases. When NPs were dispersed in adhesive formulation, the increased Young’s moduli confirmed significant improvement in the stiffness of the joints over the adhesive alone. Exploitation of lignin in nanoparticulate morphology is a potential method to prepare bionanomaterials for advanced applications.

show abstract

Section: Discussionmentioning

confidence: 99%

Colloidal Lignin Particles as Adhesives for Soft Materials

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…They found that one of the hot spots was the thermal energy needed for ethanol recovery, which is in accordance to the techno economical assessment of another solvent shifting process that also found that solvent recovery was the most energy demanding step during lignin particle production. 183 That calculation was made for THF : ethanol : water system. However, recently Lourençon et al found that using acetone : water as solvent in the atomization process the reactor did not need to be heated for solvent evaporation and lignin concentration up to 5% could be used.…”

Section: Sustainability Aspectsmentioning

confidence: 99%

“…In applications that require large volumes of particles the production process needs to be scalable. The techno-economical feasibility of production processes has been evaluated for both dry 41 and wet approaches 183 and both are scalable. For the wet approach, the most energy consuming steps are the drying of particles and recycling of the solvents.…”

Section: Conclusion and Prospectsmentioning

confidence: 99%

Spherical lignin particles: a review on their sustainability and applications

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…The low extent of commercialization of lignin is mainly due to its complex and inhomogeneous structure resulting from different sources and extraction processes (Li et al, 2015). However, recent studies have shown that fabricating spherical micro- or nanoparticles from lignin not only enables the large scale utilization of lignin (Ago et al, 2016; Leskinen et al, 2017a; Ashok et al, 2018; Lintinen et al, 2018), but also improves properties such as surface activity, antioxidative, UV shielding, and antimicrobial activity for potential high-value applications (Beisl et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Natural Shape-Retaining Microcapsules With Shells Made of Chitosan-Coated Colloidal Lignin Particles

2019

Self Cite

View full text Add to dashboard Cite

Thin film coating of charged nanoparticles with oppositely charged polymers is an efficient and straightforward way for surface modification, but synthetic polyelectrolytes should be replaced by abundant biopolymers. In this study a thin film of chitosan was adsorbed onto colloidal lignin particles (CLPs) that were then systematically studied for olive oil stabilization with an objective to develop shape-retaining microcapsules that comprised of only renewable biomaterials. Full surface coverage was achieved with merely 5 wt% of chitosan relative to the dry weight of CLPs, reversing their surface charge from negative to positive. Such modification rendered the chitosan-coated particles excellent stabilizers for forming Pickering emulsions with olive oil. The emulsion droplets could be further stabilized by sodium triphosphate that provided ionic intra- and inter-particle cross-linking of the chitosan corona on the CLPs. Following the optimum conditions, the non-cross-linked microcapsules exhibited a strong stability against coalescence and the electrostatically stabilized ones additionally retained their shape upon drying and rewetting. Non-cross-linked microcapsules were used to demonstrate encapsulation and rapid release of ciprofloxacin as a model lipophilic drug in aqueous media. Overall, the combination of antimicrobial chitosan and antioxidative lignin nanoparticles hold unprecedented opportunities as biocompatible and biodegradable materials for controlled drug delivery.

show abstract

Techno-economic assessment for the large-scale production of colloidal lignin particles

Abstract: Economical large-scale production of colloidal lignin particles.

Cited by 54 publications

References 32 publications

Colloidal Lignin Particles as Adhesives for Soft Materials

Colloidal Lignin Particles as Adhesives for Soft Materials

Spherical lignin particles: a review on their sustainability and applications

Natural Shape-Retaining Microcapsules With Shells Made of Chitosan-Coated Colloidal Lignin Particles

Contact Info

Product

Resources

About