An example lignocellulosic waste reuse in two consecutive steps: sorption of contaminants and enzymatic hydrolysis

Silva Lacerda, Viviane da ; López Sotelo, Juan Benito ; Correa Guimaraes, Adriana ; Hernández Navarro, Salvador ; Sánchez Báscones, Mercedes ; Navas Gracia, Luis Manuel ; Martín Ramos, Pablo (Universidad de Zaragoza) ; Martín Gil, Jesús

Resumen: In this study, an example of the reuse and revalorization of lignocellulosic waste from carnauba palm (Copernicia prunifera) leaves, macauba palm (Acrocomia aculeata) endocarp (shell) and European stone pine (Pinus pinea) nut shell is presented for the first time. The physical-chemical adsorption of Rhodamine B (RhB) dye for the different materials is studied in detail, together with the thermodynamic feasibility and the spontaneous and endothermic nature of the biosorption process. Subsequently, the production of total reducing sugars (TRS) is compared by enzymatic hydrolysis (before and after the adsorption process of the RhB pollutant), confirming the viability of TRS production in all cases, with yields ranging from 65.9% for pine nut shell (after adsorption) to 74.9% for the carnauba endocarp and to 84.0% for carnauba leaves (before adsorption). Hence the use of lignocellulosic materials as adsorbents does not preclude their ulterior reuse for obtaining fermentable sugars by enzymatic hydrolysis.

Idioma: Inglés

Año: 2017

Publicado en: CELLULOSE CHEMISTRY AND TECHNOLOGY 51, 1-2 (2017), 127-136
ISSN: 0576-9787

Originalmente disponible en: Texto completo de la revista

Factor impacto JCR: 0.764 (2017)

Categ. JCR: MATERIALS SCIENCE, PAPER & WOOD rank: 11 / 21 = 0.524 (2017) - Q3 - T2

Factor impacto SCIMAGO: 0.303 - Organic Chemistry (Q3) - Materials Chemistry (Q3)

Tipo y forma: Article (PostPrint)

Área (Departamento): Area Ingeniería Agroforestal (Dpto. CC.Agrar.y Medio Natural)