Skip to Main content Skip to Navigation
Journal articles

Unveiling TMP Process Water Potential As an Industrial Sourcing of Valuable Lignin–Carbohydrate Complexes toward Zero-Waste Biorefineries

Abstract : The development of zero-waste biorefineries is a promising yet challenging pathway toward a sustainable bioeconomy. Deep insights on the composition of biorefineries side streams along with the development of green technologies are mandatory to achieve such a goal. In this Article, a sustainable pilot-scale membrane process was used to recover valuable organic matter dissolved in the main side stream of a thermomechanical pulping (TMP) plant. A great number of analytical tools were combined to get an extensive characterization of the generated fraction, including inductively coupled plasma atomic emission spectroscopy (ICP-AES), high-performance ion chromatography coupled with pulse amperometric detection (HPIC-PAD), Fourier transform infrared (FTIR), size-exclusion chromatography (SEC), and C-13 and 2D heteronuclear single quantum correlation (HSQC) NMR. The results revealed the presence of a considerable amount of native lignin-carbohydrate complexes (LCCs) in the fraction representing 40% of the dry weight. The LCCs are composed of partially acetylated galactoglucomannans (GGMs) covalently linked to low condensed and ) beta-O-4-rich lignin through phenyl glycosidic bonds (25.5 bonds/100 aromatic rings (ar)) and characterized by a relatively low molecular weight around 7 kDa. Such complexes present an interesting potential for valorization with unique properties resulting from the combination of their aromatic and sugar moieties. Different applications are discussed in regards to the generated data in this work as an industrial sourcing of LCC is reported.
Document type :
Journal articles
Complete list of metadatas

Cited literature [58 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-02271749
Contributor : Brigitte Gaillard <>
Submitted on : Friday, September 11, 2020 - 3:02:29 PM
Last modification on : Tuesday, September 15, 2020 - 9:50:01 AM

File

Steinmetz_ACS_Sustainable_Chem...
Files produced by the author(s)

Identifiers

Citation

Virginie Steinmetz, Maud Villain-Gambier, Armand Klem, François Gambier, Stéphane Dumarcay, et al.. Unveiling TMP Process Water Potential As an Industrial Sourcing of Valuable Lignin–Carbohydrate Complexes toward Zero-Waste Biorefineries. ACS Sustainable Chemistry & Engineering, American Chemical Society, 2019, 7 (6), pp.6390-6400. ⟨10.1021/acssuschemeng.9b00181⟩. ⟨hal-02271749⟩

Share

Metrics

Record views

69

Files downloads

22