Condensed tannins extraction from grape pomace: Characterization and utilization as wood adhesives for wood particleboard

被引:55
作者
Ping, Lan [1 ,2 ]
Pizzi, Antonio [1 ]
Guo, Zhou Ding [2 ]
Brosse, Nicolas [1 ]
机构
[1] Nancy Univ, Lab Etud & Rech MAt Bois, Fac Sci & Tech, F-54500 Vandoeuvre Les Nancy, France
[2] Nanjing Forestry Univ, Coll Wood Sci & Technol, Nanjing 210037, Peoples R China
关键词
Tannins; Grape pomace; Adhesives; Wood; Agricultural residues; PHENOLIC-COMPOUNDS; PINE; MARC; BARK; REARRANGEMENT; ANTIOXIDANTS; PRODUCTS; SOLVENT; WASTE; FIBER;
D O I
10.1016/j.indcrop.2011.02.009
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
The extraction of condensed tannins from grape pomace was examined using water medium in the presence of NaOH, Na2CO3, NaHCO3 eventually in the presence of Na2SO3. The tannin fractions reactivity towards formaldehyde was studied by gel time analysis and thermomechanical analysis in bending and it was demonstrated that despite of their lower phenolic contents, some of these extracts displayed promising properties for adhesive applications. A resin formulation in which the total content of tannin is 75% of the total resin solids content gave good results and was employed for the elaboration of the first grape pomace based-wood particleboard which passed relevant international standard specifications for interior-grade panels. (C) 2011 Elsevier B.V. All rights reserved.
引用
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页码:907 / 914
页数:8
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