@misc{10481/67869,
year = {2020},
month = {12},
url = {http://hdl.handle.net/10481/67869},
abstract = {Carbon footprint and nonrenewability are among the motives to mitigate dependence on
oil resources. On the other hand, palm trees exceeded 100 million around globe, which
poses enormous amount of biowastes to get exploited per annum. Moreover, nanocellulose
is emerging as efficient low cost material, which shows increasing versatility throughout
time. In this investigation we will attempt to extract nanocellulose from palm wastes
(fronds, leaves, and coir), and characterize them. Dry biomass was pulped by being subjected
to 10% (wt/wt) NaOH alkaline treatment at 160  C for 2 h. Pulped non-bleached
biomass underwent acidic hydrolysis by mechanical stirring in 20% H2SO4 (v/v) and heating
to 120  C for 30 min. After filtration, neutralization, and centrifugion, resultant particles
were characterized to assess their morphology, size, particle charge, existing chemical
groups, and crystallinity. For the three types of palm residues, our preparation technique
was successful to isolate lignin containing nanocellulose particles. However, coir was more
recalcitrant to acidic hydrolysis than fronds and leaves. Our palm residues yielded 42
e82 nm spherical particles, and zeta potential ranging between  11 and  19 mV. Crystallinity
was higher after pulping, and lower after hydrolysis, which suggests promotion of
amorphous content of cellulose. Lignin-containing nanocellulose prepared in this study
initiates promising horizon especially in heavy metal (cations) removal from water in
environmental applications and sustained drug delivery for medical applications.},
organization = {European Commission},
publisher = {Elsevier},
keywords = {Nanocellulose},
keywords = {Lignin containing},
keywords = {Acidic hydrolysis},
keywords = {Palm},
keywords = {Residues},
keywords = {Valorization},
title = {Extraction and characterization of nanocellulose from three types of palm residues},
doi = {10.1016/j.jmrt.2020.12.027},
author = {Mehanny, Sherif and Gil San Millan, Rodrigo and Rodríguez Navarro, Jorge Andrés and Jorge Navarro},
}