odified lignin from sugarcane bagasse as an emulsifier in oil-in-water nanoemulsion

Autor(es)

Brenelli, Livia Beatriz ^{[1, 2]} ; Mariutti, Lilian Regina Barros ^[3] ; Portugal, Rodrigo Villares ^[4] ; de Farias, Marcelo Alexandre ^[4] ; Bragagnolo, Neura ^[3] ; Mercadante, Adriana Zerlotti ^[3] ; Franco, Telma Teixeira ^{[5, 1]} ; Rabelo, Sarita Candida ^[6] ; Squina, Fabio Marcio ^[7]

Afiliação do(s) autor(es)

^[1] Univ Campinas UNICAMP, Interdisciplinary Ctr Energy Planning, Campinas, SP - Brazil

^[2] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Biorenewables Natl Lab LNBR, Campinas, SP - Brazil

^[3] Univ Campinas UNICAMP, Fac Food Engn, Campinas, SP - Brazil

^[4] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Nanotechnol Natl Lab LNNano, Campinas, SP - Brazil

^[5] Univ Campinas UNICAMP, Sch Chem Engn, Campinas, SP - Brazil

^[6] Sao Paulo State Univ UNESP, Dept Bioproc & Biotechnol, Coll Agr Sci, Sao Paulo - Brazil

^[7] Univ Sorocaba, Programa Proc Tecnol & Ambientais, Sorocaba, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INDUSTRIAL CROPS AND PRODUCTS; v. 167, SEP 1 2021.
• Citações Web of Science: 1

Resumo

Lignin from pre-treated sugarcane bagasse was sulfomethylated to overcome its high hydrophobicity (Lig-S) and tested at different concentrations as an emulsifier for stabilizing oil-in-water nanoemulsions. The average diameter of the oil droplets was higher in the nanoemulsion prepared with 0.1 % (w/w) Lig-S (-380 nm) than those prepared with 0.5 and 1.0 % (w/w) (-180 nm and -170 nm, respectively). Zeta potential measurements predicted the long-term stability of Lig-S nanoemulsion. GC-MS analysis of the volatile carbon compounds derived from the oxidation of soybean oil indicated the highest oxidation rates were in preparations with the smallest droplet size. However, all the Lig-S nanoemulsions showed oxidation rates below the threshold values described in the literature. Microscopy analysis confirmed that all the preparations nanosized, dispersed spherical droplets. Collectively, this study has demonstrated that modified lignin isolated from sugarcane bagasse is an excellent emulsifier for the production of oil-in-water nanoemulsions that have both high physical and oxidative stability, providing prospects for the development of nanosystems, based on sustainable strategies, that can be explored for applications such as entrapment and delivery of hydrophobic or bioactive molecules. (AU)

• Processo FAPESP: 13/03061-0 - Caracterização de frações de lignina extraídas do bagaço de cana-de-açúcar com propriedades antioxidantes
• Beneficiário: Lívia Beatriz Brenelli de Paiva
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 20/05784-3 - EMU concedido no processo 15/50590-4: sistema cromatográfico e detectores para análise de açúcares e monolignois de lignocelulose
• Beneficiário: Fábio Márcio Squina
• Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários
• Processo FAPESP: 15/50612-8 - An integrated approach to explore a novel paradigm for biofuel production from lignocellulosic feedstocks
• Beneficiário: Telma Teixeira Franco
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 15/50590-4 - Valorização da lignina em plantas de etanol celulósico: a conversão biocatalítica via ácido ferúlico a produtos químicos de alto valor
• Beneficiário: Fábio Márcio Squina
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Temático