Characteristics of Hot Water Extracts from the Bark of Cultivated Willow (Salix sp.)

Jinze Dou, Jari Koivisto, , Padmakshan Dharshana , Martin Kögler, Chunlin Xu, Stefan Willför, John Ralph, Tapani Vuorinen

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Abstract

Willow bark is a rich source of heterogeneous polyphenolic compounds and a potential feedstock for biorefinery processes aiming at chemicals and fiber production. Here, mild hot water treatment of willow hybrid Karin was studied to find a practical means of isolating its non-cell-wall components for their utilization in a willow biorefinery proposed to aid valorization of the willow biomass. A short aqueous treatment of the bark at 80 °C liberated the extract in >20% yield under unpressurized conditions. The extract was characterized using mainly gas chromatography-mass spectrometry and one- and two-dimensional NMR techniques. Authentic analytes were applied to confirm the identification and quantification of the main components that were picein, (+)-catechin, triandrin, glucose, and fructose. Fructose was converted into 5-hydroxymethylfurfural in an acidic treatment which led to its condensation with the phenolic components and formation of a recalcitrant precipitate that should be avoided. © 2018 American Chemical Society.
Original languageEnglish
Pages (from-to)5566–5573
Number of pages8
JournalACS Sustainable Chemistry & Engineering
Volume6
Issue number4
DOIs
Publication statusPublished - 2 Apr 2018
MoE publication typeA1 Journal article-refereed

Fingerprint

Salix
Fructose
bark
Polyphenolic compounds
Water
Water treatment
Gas chromatography
Feedstocks
Mass spectrometry
Glucose
nuclear magnetic resonance
condensation
Precipitates
Condensation
water treatment
gas chromatography
glucose
Biomass
mass spectrometry
Nuclear magnetic resonance

Keywords

  • (+)-Catechin
  • 5-Hydroxymethylfurfural
  • Fructose
  • Picein
  • Triandrin
  • Willow bark

Cite this

Dou, J., Koivisto, J., Wisconsin Energy Institute (WEI), Dharshana , P., Kögler, M., Xu, C., ... Vuorinen, T. (2018). Characteristics of Hot Water Extracts from the Bark of Cultivated Willow (Salix sp.). ACS Sustainable Chemistry & Engineering, 6(4), 5566–5573. https://doi.org/10.1021/acssuschemeng.8b00498
Dou, Jinze ; Koivisto, Jari ; Wisconsin Energy Institute (WEI) ; Dharshana , Padmakshan ; Kögler, Martin ; Xu, Chunlin ; Willför, Stefan ; Ralph, John ; Vuorinen, Tapani. / Characteristics of Hot Water Extracts from the Bark of Cultivated Willow (Salix sp.). In: ACS Sustainable Chemistry & Engineering. 2018 ; Vol. 6, No. 4. pp. 5566–5573.
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Dou, J, Koivisto, J, Wisconsin Energy Institute (WEI), Dharshana , P, Kögler, M, Xu, C, Willför, S, Ralph, J & Vuorinen, T 2018, 'Characteristics of Hot Water Extracts from the Bark of Cultivated Willow (Salix sp.)', ACS Sustainable Chemistry & Engineering, vol. 6, no. 4, pp. 5566–5573. https://doi.org/10.1021/acssuschemeng.8b00498

Characteristics of Hot Water Extracts from the Bark of Cultivated Willow (Salix sp.). / Dou, Jinze; Koivisto, Jari; Wisconsin Energy Institute (WEI); Dharshana , Padmakshan; Kögler, Martin; Xu, Chunlin; Willför, Stefan ; Ralph, John ; Vuorinen, Tapani.

In: ACS Sustainable Chemistry & Engineering, Vol. 6, No. 4, 02.04.2018, p. 5566–5573.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Koivisto, Jari

AU - Dharshana , Padmakshan

AU - Kögler, Martin

AU - Xu, Chunlin

AU - Willför, Stefan

AU - Ralph, John

AU - Vuorinen, Tapani

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