RT Journal Article
T1 Valorization of Vegetable Waste from Leek, Lettuce, and Artichoke to Produce Highly Concentrated Lignocellulose Micro- and Nanofibril Suspensions
A1 Sánchez Salvador, José Luis
A1 Marques, Mariana
A1 Brito, Margarida
A1 Negro Álvarez, Carlos Manuel
A1 Monte, Maria Concepcion
A1 Manrique, Yaidelin
A1 Santos, Ricardo
A1 Blanco Suárez, María Ángeles
AB Vegetable supply in the world is more than double than vegetable intake, which supposes a significant waste of vegetables, in addition to the agricultural residues produced. As sensitive food products, the reasons for this waste vary from the use of only a part of the vegetable due to its different properties to the product appearance and market image. An alternative high-added-value application for these wastes rich in cellulose could be the reduction in size to produce lignocellulose microand nanofibrils (LCMNF). In this sense, a direct treatment of greengrocery waste (leek, lettuce, and artichoke) to produce LCMNFs without the extraction of cellulose has been studied, obtaining highly concentrated suspensions, without using chemicals. After drying the wastes, these suspensions were produced by milling and blending at high shear followed by several passes in the high-pressure homogenizer (up to six passes). The presence of more extractives and shorter fiber lengths allowed the obtention of 5–5.5% leek LCMNF suspensions and 3.5–4% lettuce LCMNF suspensions, whereas for artichoke, only suspensions of under 1% were obtained. The main novelty of the work was the obtention of a high concentration of micro- and nanofiber suspension from the total waste without any pretreatment. These high concentrations are not obtained from other raw materials (wood or annual plants) due to the clogging of the homogenizer, requiring the dilution of the sample up to 1% or the use of chemical pretreatments.
PB MDPI
SN 2079-4991
YR 2022
FD 2022
LK https://hdl.handle.net/20.500.14352/72160
UL https://hdl.handle.net/20.500.14352/72160
LA eng
NO Sanchez-Salvador, Jose Luis, et al. «Valorization of Vegetable Waste from Leek, Lettuce, and Artichoke to Produce Highly Concentrated Lignocellulose Micro- and Nanofibril Suspensions». Nanomaterials, vol. 12, n.o 24, diciembre de 2022, p. 4499. DOI.org (Crossref), https://doi.org/10.3390/nano12244499.
NO Comunidad de Madrid
NO European Commission
DS Docta Complutense
RD 10 abr 2025