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Using Commercial Enzymes to Produce Cellulose Nanofibers from Soybean Straw
Joint Authors
Martins, Maria Alice
Martelli-Tosi, Milena
Torricillas, Marcela da Silva
Assis, Odílio Benedito Garrido de
Tapia-Blácido, Delia Rita
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-09-05
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
This study used commercial enzymes to isolate cellulose nanofibrils (CN) and produce sugars from chemically pretreated soybean straw (SS) (stem, leaves, and pods) by alkali (NaOH 5 or 17.5% v/v at 90°C for 1 h or at 30°C for 15 h) and bleaching (NaClO2 3.3% or H2O2 4%) pretreatments.
Depending on the pretreatment applied to the soybean straw, the yield of CN varied from 6.3 to 7.5 g of CN/100 g of SS regardless of the concentration of the alkaline solution (5 or 17.5%).
The CN had diameter of 15 nm, measured over 300 nm in length, and had high electrical stability (zeta potentials ranged from −20.8 to −24.5).
Given the XRD patterns, the crystallinity index (CrI) of CN ranged from 45 to 68%, depending on the chemical pretreatment the starting material was submitted to.
CN obtained from SS treated with NaOH 17.5% and H2O2 (CrI = 45%) displayed better thermal stability probably because a lignin-cellulose complex emerged.
The soluble fraction obtained in the first step of CN production contained a large amount of reducing sugars (11.2 to 30.4 g/100 g of SS).
SS seems to be a new promising industrial source to produce CN via enzymatic-mechanical treatment, leading to large amounts of reducing sugars for use in bioenergy production.
American Psychological Association (APA)
Martelli-Tosi, Milena& Torricillas, Marcela da Silva& Martins, Maria Alice& Assis, Odílio Benedito Garrido de& Tapia-Blácido, Delia Rita. 2016. Using Commercial Enzymes to Produce Cellulose Nanofibers from Soybean Straw. Journal of Nanomaterials،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1109400
Modern Language Association (MLA)
Martelli-Tosi, Milena…[et al.]. Using Commercial Enzymes to Produce Cellulose Nanofibers from Soybean Straw. Journal of Nanomaterials No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1109400
American Medical Association (AMA)
Martelli-Tosi, Milena& Torricillas, Marcela da Silva& Martins, Maria Alice& Assis, Odílio Benedito Garrido de& Tapia-Blácido, Delia Rita. Using Commercial Enzymes to Produce Cellulose Nanofibers from Soybean Straw. Journal of Nanomaterials. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1109400
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1109400