Middle infrared (ATR FT-MIR) characterization of industrial tannin extracts

G. Tondi; A. Petutschnigg

doi:10.1016/j.indcrop.2014.11.005

Middle infrared (ATR FT-MIR) characterization of industrial tannin extracts

G. Tondi
, A. Petutschnigg

Design and Green Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

In the present paper a detailed investigation of the molecular vibrations of eight industrial tannin powder extracts is presented. The ATR FT-MIR spectra observed in the spectral window between 1800 and 600cm-1 allow specific band profiles to be identified which are typical for the various hydroxyl-aromatic molecules that constitute the tannin extracts. Hence, it was possible to rapidly discriminate the two main families of tannin. The "hydrolysable" tannins show intense absorptions in the region of the CO at around 1700cm-1 and also two major "single" bands at around 1315 and 1180 to be assigned to aromatic C-O. Conversely, the flavonoids of the "condensed" tannins present an overall structured profile especially in the region between 1400 and 1100cm-1. Spectra of tannin extract with intermediate profiles were also registered and chemometric tools such as the principal components and cluster analysis showed a noticeable potential for determining the nature of the extracts. © 2014 Elsevier B.V..

Original language	English
Pages (from-to)	422-428
Number of pages	7
Journal	Industrial Crops and Products
Volume	65
DOIs	https://doi.org/10.1016/j.indcrop.2014.11.005
Publication status	Published - 2015

Keywords

ATR FT-MIR
Chemometry
Condensed
Hydrolysable
Infrared spectroscopy
Tannin
Aromatic compounds
Cluster analysis
Flavonoids
Principal component analysis
Aromatic molecules
Chemometric tools
Principal Components
Structured profiles
Tannins
absorption
cluster analysis
hydrolysis
infrared spectroscopy
principal component analysis
secondary metabolite
tannin

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10.1016/j.indcrop.2014.11.005

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924634578&doi=10.1016%2fj.indcrop.2014.11.005&partnerID=40&md5=dc079e0021643f8e1c086effdeb5ab2c

Cite this

@article{c273369d30064a2d8794d8fbea11da3d,

title = "Middle infrared (ATR FT-MIR) characterization of industrial tannin extracts",

abstract = "In the present paper a detailed investigation of the molecular vibrations of eight industrial tannin powder extracts is presented. The ATR FT-MIR spectra observed in the spectral window between 1800 and 600cm-1 allow specific band profiles to be identified which are typical for the various hydroxyl-aromatic molecules that constitute the tannin extracts. Hence, it was possible to rapidly discriminate the two main families of tannin. The {"}hydrolysable{"} tannins show intense absorptions in the region of the CO at around 1700cm-1 and also two major {"}single{"} bands at around 1315 and 1180 to be assigned to aromatic C-O. Conversely, the flavonoids of the {"}condensed{"} tannins present an overall structured profile especially in the region between 1400 and 1100cm-1. Spectra of tannin extract with intermediate profiles were also registered and chemometric tools such as the principal components and cluster analysis showed a noticeable potential for determining the nature of the extracts. {\textcopyright} 2014 Elsevier B.V..",

keywords = "ATR FT-MIR, Chemometry, Condensed, Hydrolysable, Infrared spectroscopy, Tannin, Aromatic compounds, Cluster analysis, Flavonoids, Principal component analysis, Aromatic molecules, Chemometric tools, Principal Components, Structured profiles, Tannins, absorption, cluster analysis, hydrolysis, infrared spectroscopy, principal component analysis, secondary metabolite, tannin",

author = "G. Tondi and A. Petutschnigg",

note = "Cited By :99 Export Date: 14 December 2023 CODEN: ICRDE Correspondence Address: Tondi, G.; Salzburg University of Applied Sciences, 136a Marktstra{\ss}e, Austria; email: [email protected] Funding details: Bundesministerium f{\"u}r Land- und Forstwirtschaft, Umwelt und Wasserwirtschaft, BMLFUW, 101.006 Funding text 1: The authors gratefully acknowledge the Austrian Federal Ministry of Agriculture, Forestry, Environment and Water Management for supporting the project “Biocopol” 101.006 in the frame of the ERA-NET Wood Wisdom platform. References: Ajuong, E.M.A., Breeze, M.C., Fourier Transform Infrared characterization of Pai wood (Afzelia African Smith) extractives (1998) Holz Roh. Werkst., 56, pp. 139-142; Ajuong, E.M.A., Birkinshaw, C., The effect of the acetylation on the extractives of Sitka spruce (Picea sitchensis) and Larch (Larix Leptoleptis) wood (2004) Holz Roh. Werkst., 62, pp. 189-196; Ajuong, E.M.A., Redington, M., FT-IR analysis of Bog and modern Oak wood (Quercus Petrae) extractives (2004) Wood Sci. Technol., 38, pp. 181-190; Andasuryani, Y.A.P., Purwanto, Y.A., Budiastra, I.W., Syamsu, K., Non destructive and rapid analysis of catechin content in Gambir (Uncaria gambir Roxb.) using NIR spectroscopy (2013) Int. J. Sci. Eng. Res., 4 (9), pp. 383-389; Arana, J., Tello Rendon, E., Dona Rodriguez, J.M., Herrera Melian, J.A., Gonzalez Diaz, O., Perez Pena, J., Highly concentrated phenolic wastewater treatment by the Photo-Fenton reaction, mechanism study by FTIR-ATR (2001) Chemosphere, 44, pp. 1017-1023; Chupin, L., Motillon, C., Charrier-El-Bouhtoury, F., Pizzi, A., Charrier, B., Characterisation of maritime pine (Pinus pinaster) bark tannins extracted under different conditions by spectroscopic methods, FTIR and HPLC (2013) Ind. Crops prod., 49, pp. 897-903; Fernandez, K., Agosin, E., Quantitative analysis of red wine tannins using Fourier-transform mid-infrared spectrometry (2007) J. Agric. Food Chem., 55 (18), pp. 7294-7300; Grdadolnik, J., ATR-FT IR spectroscopy: its advantage and limitations (2002) Acta Chim. Slov., 49, pp. 631-642; Gremlich, H.U., Infrared and Raman spectroscopy Ullmann's Encyclopedia of Industrial Chemistry. Wiley, 1999-2014, pp. 1-2; Hagerman, A.E., Zhao, Y., Johnson, S., Methods for determination of condensed and hydrolyzable tannins (1997) ACS Symp. Ser., 662, pp. 209-222; Hagermann, A.E., Hydrolizable Tannin Structural Chemistry Script 2002-2010; Haslam, E., (2006) Practical Polyphenolics. From Structure to Molecular Recognition and Physiological Action, , Cambridge University Press, UK; He, G., Riedl, B., Curing kinetics of phenol formaldehyde resin and wood-resin interactions in the presence of wood substrates (2004) Wood Sci. Technol., 38, pp. 69-81; Jensen, J.S., Egebo, M., Meyer, A.S., Identification of spectral regions for the quantification of Red Wine Tannins with Fourier transform mid-infrared spectroscopy (2008) J. Agric. Food Chem., 56, pp. 3493-3499; Jordan, M.J., Martinez, R.M., Martinez, C., Monino, I., Sotomayor, J.A., Polyphenolic extract and essential oil quality of Thymus zygis ssp. gracilis shrubs cultivated under different watering levels (2009) Ind. Crops Prod., 29 (1), pp. 145-153; Kataoka, Y., Kiguchi, M., Depth profiling of photo-induced degradation in wood by FT-IR microspectroscopy (2001) J. Wood Sci., 47, pp. 325-327; Kacurakova, M., Capek, P., Sasinkova, V., Wellner, N., Ebrigerova, A., FT-IR study of plant cell wall model compounds: pectic polysaccharides and hemicelluloses (2000) Carbohydr. Polym., 43, pp. 195-203; Kim, S., Kim, H.J., Curing behavior and viscoelastic properties of pine and wattle tannin-based adhesives studied by dynamic mechanical thermal analysis and FT-IR-ATR spectroscopy (2003) J. Adhes. Sci. Technol., 17 (10), pp. 1369-1383; Kosar, M., Bozan, B., Temelli, F., Baser, K.H.C., Antioxidant activity and phenolic composition of sumac (Rhus coriaria L.) extracts (2006) Food Chem., 103, pp. 952-959; Krishnan, R., Maru, G.B., Isolation and analyses of polymeric polyphenol fractions from black tea (2006) Food Chem., 94, pp. 331-340; Ku, C.S., Mun, S.P., Characterization of proanthocyanidin in hot water extract isolated from Pinus radiata bark (2007) Wood Sci. Technol., 41, pp. 235-247; Laghi, L., Parpinello, G.P., Del Rio, D., Calani, L., Mattioli, A.U., Versari, A., Fingerprint of enological tannins by multiple techniques approach (2010) Food Chem., 121, pp. 783-788; Lee, W.J., Lan, W.C., Properties of resorcinol-tannin-formaldehyde copolymer resins prepared from the bark extracts of Taiwan acacia and China fir (2006) Bioresour. Technol., 97 (2), pp. 257-264; M{\"u}ller, U., Ratzsch, M., Schwanninger, M., Steiner, M., Z{\"o}bl, H., Yellowing and IR-changes of spruce wood as result of UV-irradiation (2003) J. Photochem. Photobiol. B: Biol., 69 (2), pp. 97-105; Nonier, M.F., Vivas, N., Vivas de Gaulejac, N., Absalon, C., Vitry, C., Fouquet, E., Global fractionation of oak heartwoodextractable polymers (lignins, polysaccharides and ellagitannins) by selective precipitations (2005) J. Sci. Food Agric., 85, pp. 343-353; Nuopponen, M., Vuorinen, T., J{\"a}ms{\"a}, S., Viitaniemi, P., Thermal modifications in softwood studied by FT-IR and UV Resonance Raman Spectroscopies (2005) J. Wood Chem. Technol., 24 (1), pp. 13-26; Nuopponen, M., Wikberg, H.I., Birch, G.M., J{\"a}{\"a}skel{\"a}inen, A.S., Maunu, S.L., Vuorinen, T., Stewart, D., Characterization of 25 tropical hardwoods with Fourier transform infrared. Ultraviolet resonance Raman, and 13C-NMR cross-polarization/magic-angle spinning spectroscopy (2006) J. Appl. Polym. Sci., 102, pp. 810-819; Oo, C.W., Kassim, M.J., Pizzi, A., Characterization and performance of Rhizophora apiculata mangrove polyflavonoid tannins in the adsorption of copper (II) and lead (II) (2009) Ind. Crops Prod., 30, pp. 152-161; {\"O}zacar, M., Sengil, I.A., T{\"u}rkmenler, H., Equilibrium and kinetic data, and adsorption mechanism for adsorption of lead onto valonia tannin resin (2008) Chem. Eng. J., 143 (1-3), pp. 32-42; Pena, C., Larranaga, M., Gabilondo, N., Tejado, A., Echeverria, J.M., Mondragon, I., Synthesis and characterization of phenolic novolacs modified by chestnut and mimosa tannin extracts (2006) J. Appl. Polym. Sci., 100, pp. 4412-4419; Ping, L., Pizzi, A., Guo, Z.D., Brosse, N., Condensed tannins from grape pomace: characterization by FTIR and MALDI TOF and production of environment friendly wood adhesive (2012) Ind. Crops Prod., 40, pp. 13-20; Pizzi, A., Stephanou, A., A comparative C13 NMR study of polyflavonoid tannin extracts for phenolic polycondensates (1993) J. Appl. Polym.Sci., 50 (12), pp. 2105-2113; Pizzi, A., (1994) Advanced Wood Adhesive Technology, , Dekker, New York, USA; Pizzi, A., Mtsweni, B., Parson, W., Wood-induced catalytic activation of PF adhesives autopolymerization vs. PF/wood covalent bonding (1994) J. Appl. Polym. Sci., 52 (13), pp. 1847-1856; Popescu, C.M., Popescu, M.C., Vasile, C., Characterization of fungal degraded lime wood by FT-IR and 2D IR correlation spectroscopy (2010) Microchem. J., 95 (2), pp. 377-387; Proniewicz, L.M., Paluszkiewicz, C., Wese{\l}ucha-Birczy{\'n}ska, A., Majcherczyk, H., Bara{\'n}ski, A., Konieczna, A., FT-IR and FT-Raman study of hydrothermally degradated cellulose (2001) J. Mol. Struct., 596 (1-3), pp. 163-169; Rayne, S., Mazza, G., Biological activities of extracts from Sumac (Rhus spp.): a review (2007) Plant Food Hum. Nutr., 62, pp. 165-175; Saad, H., Khoukh, A., Ayed, N., Charrier, B., Charrier-El-Bouhtour, F., Characterization of Tunisian Aleppo pine tannins for a potential use in wood adhesive formulation (2014) Ind. Crops. Prod., 61, pp. 517-525; Scalbert, A., Mila, I., Expert, D., Marmolle, F., Albrecht, A.M., Hurrell, R., Huneau, J.F., Tom{\'e}, D., (1999) Polyphenols Metel-Ion Complexation and Biological Consequences. Plant Polyphenols 2, p. 545. , Gross-Kluwer. Plenum Publ; Schulz, H., Baranska, M., Quilitzsch, R., Schultze, W., Determination of alkaloids in capsules, milk and ethanolic extracts of poppy (Papaver somniferum L.) by ATR-FT-IR and FT-Raman spectroscopy (2004) Analysts, 129, pp. 917-920; Schwanninger, M., Rodrigues, J.C., Pereira, H., Hinterstoisser, B., Effects of short-time vibratory ball milling on the shape of FT-IR spectra of wood and cellulose (2004) Vibrat. Spectrosc., 36 (1), pp. 23-40; Smidt, E., B{\"o}hm, K., Schwanninger, M., The application of FT-IR spectroscopy in waste management (2011) Fourier Transforms - New Analytical Approaches and FTIR Strategies, , Boku Wien., (Chapter 19); Temiz, A., Terziev, N., Eikenes, M., Hafren, J., Effect of accelerated weathering on surface chemistry of modified wood (2007) Appl. Surf. Sci., 253 (12), pp. 5355-5362; Tondi, G., Schnabel, T., Wieland, S., Petutschnigg, A., Surface properties of tannin treated wood during natural and artificial weathering (2013) Int. Wood Prod. J., 4 (3), pp. 150-157; Tondi, G., Oo, C.W., Link, M., Petutschnigg, A., A simple approach to distinguish classic and formaldehyde-free tannin based rigid foams by ATR FT-IR (2014) J. Spectr., , (submitted for publication); Unsalan, O., Erdogdu, Y., Gulluoglu, M.T., FT-Raman and FT-IR spectral and quantum chemical studies on some flavonoid derivatives: Baicalein and Naringenin (2009) J. Raman Spectrosc., 40, pp. 562-570; Wuzella, G., Mahendran, A.R., M{\"u}ller, U., Kandelbauer, A., Teischinger, A., Photocrosslinking of an acrylated epoxidized linseed oil: kinetics and its application for optimized wood coatings (2012) J. Polym. Environ., 20, pp. 1063-1074",

year = "2015",

doi = "10.1016/j.indcrop.2014.11.005",

language = "English",

volume = "65",

pages = "422--428",

journal = "Industrial Crops and Products",

issn = "0926-6690",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Middle infrared (ATR FT-MIR) characterization of industrial tannin extracts

AU - Tondi, G.

AU - Petutschnigg, A.

N1 - Cited By :99 Export Date: 14 December 2023 CODEN: ICRDE Correspondence Address: Tondi, G.; Salzburg University of Applied Sciences, 136a Marktstraße, Austria; email: [email protected] Funding details: Bundesministerium für Land- und Forstwirtschaft, Umwelt und Wasserwirtschaft, BMLFUW, 101.006 Funding text 1: The authors gratefully acknowledge the Austrian Federal Ministry of Agriculture, Forestry, Environment and Water Management for supporting the project “Biocopol” 101.006 in the frame of the ERA-NET Wood Wisdom platform. References: Ajuong, E.M.A., Breeze, M.C., Fourier Transform Infrared characterization of Pai wood (Afzelia African Smith) extractives (1998) Holz Roh. Werkst., 56, pp. 139-142; Ajuong, E.M.A., Birkinshaw, C., The effect of the acetylation on the extractives of Sitka spruce (Picea sitchensis) and Larch (Larix Leptoleptis) wood (2004) Holz Roh. Werkst., 62, pp. 189-196; Ajuong, E.M.A., Redington, M., FT-IR analysis of Bog and modern Oak wood (Quercus Petrae) extractives (2004) Wood Sci. Technol., 38, pp. 181-190; Andasuryani, Y.A.P., Purwanto, Y.A., Budiastra, I.W., Syamsu, K., Non destructive and rapid analysis of catechin content in Gambir (Uncaria gambir Roxb.) using NIR spectroscopy (2013) Int. J. Sci. Eng. Res., 4 (9), pp. 383-389; Arana, J., Tello Rendon, E., Dona Rodriguez, J.M., Herrera Melian, J.A., Gonzalez Diaz, O., Perez Pena, J., Highly concentrated phenolic wastewater treatment by the Photo-Fenton reaction, mechanism study by FTIR-ATR (2001) Chemosphere, 44, pp. 1017-1023; Chupin, L., Motillon, C., Charrier-El-Bouhtoury, F., Pizzi, A., Charrier, B., Characterisation of maritime pine (Pinus pinaster) bark tannins extracted under different conditions by spectroscopic methods, FTIR and HPLC (2013) Ind. Crops prod., 49, pp. 897-903; Fernandez, K., Agosin, E., Quantitative analysis of red wine tannins using Fourier-transform mid-infrared spectrometry (2007) J. Agric. Food Chem., 55 (18), pp. 7294-7300; Grdadolnik, J., ATR-FT IR spectroscopy: its advantage and limitations (2002) Acta Chim. Slov., 49, pp. 631-642; Gremlich, H.U., Infrared and Raman spectroscopy Ullmann's Encyclopedia of Industrial Chemistry. Wiley, 1999-2014, pp. 1-2; Hagerman, A.E., Zhao, Y., Johnson, S., Methods for determination of condensed and hydrolyzable tannins (1997) ACS Symp. Ser., 662, pp. 209-222; Hagermann, A.E., Hydrolizable Tannin Structural Chemistry Script 2002-2010; Haslam, E., (2006) Practical Polyphenolics. From Structure to Molecular Recognition and Physiological Action, , Cambridge University Press, UK; He, G., Riedl, B., Curing kinetics of phenol formaldehyde resin and wood-resin interactions in the presence of wood substrates (2004) Wood Sci. Technol., 38, pp. 69-81; Jensen, J.S., Egebo, M., Meyer, A.S., Identification of spectral regions for the quantification of Red Wine Tannins with Fourier transform mid-infrared spectroscopy (2008) J. Agric. Food Chem., 56, pp. 3493-3499; Jordan, M.J., Martinez, R.M., Martinez, C., Monino, I., Sotomayor, J.A., Polyphenolic extract and essential oil quality of Thymus zygis ssp. gracilis shrubs cultivated under different watering levels (2009) Ind. Crops Prod., 29 (1), pp. 145-153; Kataoka, Y., Kiguchi, M., Depth profiling of photo-induced degradation in wood by FT-IR microspectroscopy (2001) J. Wood Sci., 47, pp. 325-327; Kacurakova, M., Capek, P., Sasinkova, V., Wellner, N., Ebrigerova, A., FT-IR study of plant cell wall model compounds: pectic polysaccharides and hemicelluloses (2000) Carbohydr. Polym., 43, pp. 195-203; Kim, S., Kim, H.J., Curing behavior and viscoelastic properties of pine and wattle tannin-based adhesives studied by dynamic mechanical thermal analysis and FT-IR-ATR spectroscopy (2003) J. Adhes. Sci. Technol., 17 (10), pp. 1369-1383; Kosar, M., Bozan, B., Temelli, F., Baser, K.H.C., Antioxidant activity and phenolic composition of sumac (Rhus coriaria L.) extracts (2006) Food Chem., 103, pp. 952-959; Krishnan, R., Maru, G.B., Isolation and analyses of polymeric polyphenol fractions from black tea (2006) Food Chem., 94, pp. 331-340; Ku, C.S., Mun, S.P., Characterization of proanthocyanidin in hot water extract isolated from Pinus radiata bark (2007) Wood Sci. Technol., 41, pp. 235-247; Laghi, L., Parpinello, G.P., Del Rio, D., Calani, L., Mattioli, A.U., Versari, A., Fingerprint of enological tannins by multiple techniques approach (2010) Food Chem., 121, pp. 783-788; Lee, W.J., Lan, W.C., Properties of resorcinol-tannin-formaldehyde copolymer resins prepared from the bark extracts of Taiwan acacia and China fir (2006) Bioresour. Technol., 97 (2), pp. 257-264; Müller, U., Ratzsch, M., Schwanninger, M., Steiner, M., Zöbl, H., Yellowing and IR-changes of spruce wood as result of UV-irradiation (2003) J. Photochem. Photobiol. B: Biol., 69 (2), pp. 97-105; Nonier, M.F., Vivas, N., Vivas de Gaulejac, N., Absalon, C., Vitry, C., Fouquet, E., Global fractionation of oak heartwoodextractable polymers (lignins, polysaccharides and ellagitannins) by selective precipitations (2005) J. Sci. Food Agric., 85, pp. 343-353; Nuopponen, M., Vuorinen, T., Jämsä, S., Viitaniemi, P., Thermal modifications in softwood studied by FT-IR and UV Resonance Raman Spectroscopies (2005) J. Wood Chem. Technol., 24 (1), pp. 13-26; Nuopponen, M., Wikberg, H.I., Birch, G.M., Jääskeläinen, A.S., Maunu, S.L., Vuorinen, T., Stewart, D., Characterization of 25 tropical hardwoods with Fourier transform infrared. Ultraviolet resonance Raman, and 13C-NMR cross-polarization/magic-angle spinning spectroscopy (2006) J. Appl. Polym. Sci., 102, pp. 810-819; Oo, C.W., Kassim, M.J., Pizzi, A., Characterization and performance of Rhizophora apiculata mangrove polyflavonoid tannins in the adsorption of copper (II) and lead (II) (2009) Ind. Crops Prod., 30, pp. 152-161; Özacar, M., Sengil, I.A., Türkmenler, H., Equilibrium and kinetic data, and adsorption mechanism for adsorption of lead onto valonia tannin resin (2008) Chem. Eng. J., 143 (1-3), pp. 32-42; Pena, C., Larranaga, M., Gabilondo, N., Tejado, A., Echeverria, J.M., Mondragon, I., Synthesis and characterization of phenolic novolacs modified by chestnut and mimosa tannin extracts (2006) J. Appl. Polym. Sci., 100, pp. 4412-4419; Ping, L., Pizzi, A., Guo, Z.D., Brosse, N., Condensed tannins from grape pomace: characterization by FTIR and MALDI TOF and production of environment friendly wood adhesive (2012) Ind. Crops Prod., 40, pp. 13-20; Pizzi, A., Stephanou, A., A comparative C13 NMR study of polyflavonoid tannin extracts for phenolic polycondensates (1993) J. Appl. Polym.Sci., 50 (12), pp. 2105-2113; Pizzi, A., (1994) Advanced Wood Adhesive Technology, , Dekker, New York, USA; Pizzi, A., Mtsweni, B., Parson, W., Wood-induced catalytic activation of PF adhesives autopolymerization vs. PF/wood covalent bonding (1994) J. Appl. Polym. Sci., 52 (13), pp. 1847-1856; Popescu, C.M., Popescu, M.C., Vasile, C., Characterization of fungal degraded lime wood by FT-IR and 2D IR correlation spectroscopy (2010) Microchem. J., 95 (2), pp. 377-387; Proniewicz, L.M., Paluszkiewicz, C., Wesełucha-Birczyńska, A., Majcherczyk, H., Barański, A., Konieczna, A., FT-IR and FT-Raman study of hydrothermally degradated cellulose (2001) J. Mol. Struct., 596 (1-3), pp. 163-169; Rayne, S., Mazza, G., Biological activities of extracts from Sumac (Rhus spp.): a review (2007) Plant Food Hum. Nutr., 62, pp. 165-175; Saad, H., Khoukh, A., Ayed, N., Charrier, B., Charrier-El-Bouhtour, F., Characterization of Tunisian Aleppo pine tannins for a potential use in wood adhesive formulation (2014) Ind. Crops. Prod., 61, pp. 517-525; Scalbert, A., Mila, I., Expert, D., Marmolle, F., Albrecht, A.M., Hurrell, R., Huneau, J.F., Tomé, D., (1999) Polyphenols Metel-Ion Complexation and Biological Consequences. Plant Polyphenols 2, p. 545. , Gross-Kluwer. Plenum Publ; Schulz, H., Baranska, M., Quilitzsch, R., Schultze, W., Determination of alkaloids in capsules, milk and ethanolic extracts of poppy (Papaver somniferum L.) by ATR-FT-IR and FT-Raman spectroscopy (2004) Analysts, 129, pp. 917-920; Schwanninger, M., Rodrigues, J.C., Pereira, H., Hinterstoisser, B., Effects of short-time vibratory ball milling on the shape of FT-IR spectra of wood and cellulose (2004) Vibrat. Spectrosc., 36 (1), pp. 23-40; Smidt, E., Böhm, K., Schwanninger, M., The application of FT-IR spectroscopy in waste management (2011) Fourier Transforms - New Analytical Approaches and FTIR Strategies, , Boku Wien., (Chapter 19); Temiz, A., Terziev, N., Eikenes, M., Hafren, J., Effect of accelerated weathering on surface chemistry of modified wood (2007) Appl. Surf. Sci., 253 (12), pp. 5355-5362; Tondi, G., Schnabel, T., Wieland, S., Petutschnigg, A., Surface properties of tannin treated wood during natural and artificial weathering (2013) Int. Wood Prod. J., 4 (3), pp. 150-157; Tondi, G., Oo, C.W., Link, M., Petutschnigg, A., A simple approach to distinguish classic and formaldehyde-free tannin based rigid foams by ATR FT-IR (2014) J. Spectr., , (submitted for publication); Unsalan, O., Erdogdu, Y., Gulluoglu, M.T., FT-Raman and FT-IR spectral and quantum chemical studies on some flavonoid derivatives: Baicalein and Naringenin (2009) J. Raman Spectrosc., 40, pp. 562-570; Wuzella, G., Mahendran, A.R., Müller, U., Kandelbauer, A., Teischinger, A., Photocrosslinking of an acrylated epoxidized linseed oil: kinetics and its application for optimized wood coatings (2012) J. Polym. Environ., 20, pp. 1063-1074

PY - 2015

Y1 - 2015

N2 - In the present paper a detailed investigation of the molecular vibrations of eight industrial tannin powder extracts is presented. The ATR FT-MIR spectra observed in the spectral window between 1800 and 600cm-1 allow specific band profiles to be identified which are typical for the various hydroxyl-aromatic molecules that constitute the tannin extracts. Hence, it was possible to rapidly discriminate the two main families of tannin. The "hydrolysable" tannins show intense absorptions in the region of the CO at around 1700cm-1 and also two major "single" bands at around 1315 and 1180 to be assigned to aromatic C-O. Conversely, the flavonoids of the "condensed" tannins present an overall structured profile especially in the region between 1400 and 1100cm-1. Spectra of tannin extract with intermediate profiles were also registered and chemometric tools such as the principal components and cluster analysis showed a noticeable potential for determining the nature of the extracts. © 2014 Elsevier B.V..

AB - In the present paper a detailed investigation of the molecular vibrations of eight industrial tannin powder extracts is presented. The ATR FT-MIR spectra observed in the spectral window between 1800 and 600cm-1 allow specific band profiles to be identified which are typical for the various hydroxyl-aromatic molecules that constitute the tannin extracts. Hence, it was possible to rapidly discriminate the two main families of tannin. The "hydrolysable" tannins show intense absorptions in the region of the CO at around 1700cm-1 and also two major "single" bands at around 1315 and 1180 to be assigned to aromatic C-O. Conversely, the flavonoids of the "condensed" tannins present an overall structured profile especially in the region between 1400 and 1100cm-1. Spectra of tannin extract with intermediate profiles were also registered and chemometric tools such as the principal components and cluster analysis showed a noticeable potential for determining the nature of the extracts. © 2014 Elsevier B.V..

KW - ATR FT-MIR

KW - Chemometry

KW - Condensed

KW - Hydrolysable

KW - Infrared spectroscopy

KW - Tannin

KW - Aromatic compounds

KW - Cluster analysis

KW - Flavonoids

KW - Principal component analysis

KW - Aromatic molecules

KW - Chemometric tools

KW - Principal Components

KW - Structured profiles

KW - Tannins

KW - absorption

KW - cluster analysis

KW - hydrolysis

KW - infrared spectroscopy

KW - principal component analysis

KW - secondary metabolite

KW - tannin

U2 - 10.1016/j.indcrop.2014.11.005

DO - 10.1016/j.indcrop.2014.11.005

M3 - Article

SN - 0926-6690

VL - 65

SP - 422

EP - 428

JO - Industrial Crops and Products

JF - Industrial Crops and Products

ER -