Lignins from sugarcane bagasse: Renewable source of nanoparticles as Pickering emulsions stabilizers for bioactive compounds encapsulation

Bertolo, Mirella Romanelli Vicente; Brenelli, Lívia Beatriz; Nascimento, Viviane Marcos; Gandin, César A.; Neto, Mario Oliveira; Driemeier, Carlos; Rabelo, Sarita Cândida

doi:10.1016/j.indcrop.2019.111591

Cited by 90 publications

(40 citation statements)

References 47 publications

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“…85,86 Indeed, by tuning the amphiphilicity and charge of the lignin nanoparticles a large variety of O/W emulsions can be stabilized. While O/W emulsions based on aliphatic or aromatic hydrocarbons have been easy to stabilize using LNPs, 38,47,[87][88][89][90] vegetable oils have been more challenging, even if using chemically modified lignin such as the graft copolymer of lignin and N-isopropylacrylamide as a source of nanoparticles. 91 Nevertheless, food, cosmetics and biomedical materials require non-toxic oils and emulsifiers.…”

Section: Dispersantsmentioning

confidence: 99%

Spherical lignin particles: a review on their sustainability and applications

et al. 2020

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Section: Dispersantsmentioning

confidence: 99%

Spherical lignin particles: a review on their sustainability and applications

et al. 2020

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“…The lignin hydrophobic functional groups are positioned inside the formed aggregation structure and covered by the lignin hydrophilic functional groups, such as phenolic and aliphatic hydroxyl groups [ 15 , 18 , 19 ]. Hence, LNPs are known as an amphiphilic polymer [ 19 , 20 ], as well as a water-insoluble nanoparticle that is rich in negative surface charge [ 14 , 21 ]. This leads the LNPs to be a good choice as a carrier of a hydrophobic molecule that can be exposed in high-polarity environments [ 20 ].…”

Section: Lignin Nanoparticles (Lnps)mentioning

confidence: 99%

“…This leads the LNPs to be a good choice as a carrier of a hydrophobic molecule that can be exposed in high-polarity environments [ 20 ]. Moreover, LNPs have excellent properties, such as renewability, sustainability, biodegradability, biocompatibility, and safe [ 14 , 20 , 21 , 22 ]. Currently, LNPs are mostly applied as binders and carriers in drug delivery, precursors for engineering materials (i.e., carbon fibers and composites), adhesive, emulsifiers, dispersants, templates, and functional materials [ 14 , 18 ].…”

Section: Lignin Nanoparticles (Lnps)mentioning

confidence: 99%

A Review of Lignocellulosic-Derived Nanoparticles for Drug Delivery Applications: Lignin Nanoparticles, Xylan Nanoparticles, and Cellulose Nanocrystals

2021

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Due to their biocompatibility, biodegradability, and non-toxicity, lignocellulosic-derived nanoparticles are very potential materials for drug carriers in drug delivery applications. There are three main lignocellulosic-derived nanoparticles discussed in this review. First, lignin nanoparticles (LNPs) are an amphiphilic nanoparticle which has versatile interactions toward hydrophilic or hydrophobic drugs. The synthesis methods of LNPs play an important role in this amphiphilic characteristic. Second, xylan nanoparticles (XNPs) are a hemicellulose-derived nanoparticle, where additional pretreatment is needed to obtain a high purity xylan before the synthesis of XNPs. This process is quite long and challenging, but XNPs have a lot of potential as a drug carrier due to their stronger interactions with various drugs. Third, cellulose nanocrystals (CNCs) are a widely exploited nanoparticle, especially in drug delivery applications. CNCs have low cytotoxicity, therefore they are suitable for use as a drug carrier. The research possibilities for these three nanoparticles are still wide and there is potential in drug delivery applications, especially for enhancing their characteristics with further surface modifications adjusted to the drugs.

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“…O grupo hidroxila fenólica é o grupo mais importante para aplicações de lignina e normalmente aparecem em maior quantidade em ligninas de baixa massa molar, 49 e por esse motivo, pode ser mais facilmente utilizada como matéria-prima na produção de alguns compostos de baixa massa molar, como a vanilina, aromáticos hidroxilados, quininas, aldeídos e ácidos alifáticos. 7,8,48 Bertolo et al, 50 realizaram a extração da lignina do bagaço de cana-de-açúcar pelo tratamento alcalino e organossolve. Pela análise de GPC, com o solvente DMSO, a lignina organossolve apresentou Mw três vezes menor em comparação com a lignina alcalina.…”

Section: Análise Da Estrutura Da Lignina Acetossolveunclassified

“…Isso indica que as ligninas extraídas em meio alcalino são mais heterogêneas. Já a polidispersividade encontrada neste trabalho foi menor em relação ao Bertolo et al, 50 isso pode ser justificado pela diferença de solventes utilizados na análise de GPC.…”

Section: Análise Da Estrutura Da Lignina Acetossolveunclassified

Isolation and Characterization of Acetosolv Lignin Present in Sugarcane Bagasse

Rodrigues¹,

Carmo²,

Freitas³

et al. 2020

Rev. Virtual Quim.

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The lignin present in the vegetal tissues of the sugarcane bagasse is an interesting material due to its aromatic characteristics. Particularly in Brazil, studies involving the extraction of lignin from sugarcane bagasse have been widely researched due to the high volume of bagasse generated in our country. Recent studies have shown that after isolation, lignin is a raw material that can be used as a pesticide, solution stabilizer and particularly for the production of phenolic resin partially replacing phenol. The present study aimed to isolate and characterize the lignin present in sugarcane bagasse by the acetosolv pulping method. The sugarcane bagasse was pre-treated to remove organic and hot water-soluble extracts, and then acetic (solvent) and hydrochloric (catalyst) acids and water at the temperature were used. boiling point for the isolation of lignin by the acetossolve process. The obtained lignin was characterized by chemical performance analysis, Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC) and thermogravimetry (TGA). The extraction yield of lignin acetosolv was 19.95 % under total sugarcane bagasse. In the lignin FTIR spectrum the stretch range between 1594 and 1511 cm-1 confirm the preservation of the aromatic structure. GPC analysis demonstrated a low polydispersity of lignin acetosolv. TGA analysis showed no residues above 600°C, indicating high content of organic material, confirming the purity of the extracted sample. It is concluded, therefore, that the acetossolve pulping method for lignin extraction may be an efficient alternative, in view of the processes traditionally employed if fibers, not wood (sugarcane bagasse) are used. The fact that it is a process that does not use pressure combined with the possibility of recovering inputs by simple evaporation, makes the acetosolv competitive and with less environmental damage than other traditional processes. A lignina presente nos tecidos vegetais do bagaço da cana é um material interessante devido às suas características aromáticas. Particularmente no Brasil, estudos envolvendo a extração de lignina do bagaço de cana têm sido amplamente pesquisados devido ao alto volume de bagaço gerado em nosso país. Estudos recentes demonstraram que, após o isolamento, a lignina é uma matéria-prima que pode ser usada como pesticida, estabilizador de solução e particularmente para a produção de resina fenólica, substituindo parcialmente o fenol. O presente estudo teve como objetivo isolar e caracterizar a lignina presente no bagaço de cana-de-açúcar pelo método de polpação acetossolve. O bagaço de cana-de-açúcar foi submetido a um pré-tratamento para a remoção de extrativos orgânicos e extrativos solúveis em água quente, e posteriormente, utilizaram-se os ácidos acético (solvente) e clorídrico (catalisador), e água na temperatura de ebulição, para o isolamento da lignina, pelo processo acetossolve. A lignina obtida foi caracterizada por análise química de rendimento, espectroscopia na região do infravermelho com transforma...

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Lignins from sugarcane bagasse: Renewable source of nanoparticles as Pickering emulsions stabilizers for bioactive compounds encapsulation

Cited by 90 publications

References 47 publications

Spherical lignin particles: a review on their sustainability and applications

Spherical lignin particles: a review on their sustainability and applications

A Review of Lignocellulosic-Derived Nanoparticles for Drug Delivery Applications: Lignin Nanoparticles, Xylan Nanoparticles, and Cellulose Nanocrystals

Isolation and Characterization of Acetosolv Lignin Present in Sugarcane Bagasse

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