caa a22 4500 378867628 CHVBK 20180305123401.0 cr unu---uuuuu 161128e20030820xx s 000 0 eng 10.1515/HF.2003.078 doi (NATIONALLICENCE)gruyter-10.1515/HF.2003.078 Analysis of Black Wattle (Acacia mearnsii De Wild) Bark by Near Infrared Spectroscopy [Elektronische Daten] [L. R. Schimleck, Y. Yazaki] The analysis of two sets of Acacia mearnsii De Wild (Black Wattle) samples by near infrared (NIR) spectroscopy is reported. Set 1 samples were characterised in terms of hot water extractives, Stiasny value and polyflavanoid content. Set 2 samples were characterised by nine different parameters, including tannin content. NIR spectra were obtained from the milled bark of all samples and calibrations developed for each parameter. Calibrations developed for hot water extractives and polyflavanoid content (set 1) gave very good coefficients of determination (R2) and performed well in prediction. Set 2 calibrations were generally good with total and soluble solids, tannin content, Stiasny value-2 and UV-2, all having R2 greater than 0.8. Owing to the small number of set 2 samples, no predictions were made using the calibrations. The strong relationships obtained for many parameters in this study indicates that NIR spectroscopy has considerable potential for the rapid assessment of the quality of extractives in A. mearnsii bark. Copyright © 2003 by Walter de Gruyter GmbH & Co. KG Timber & wood processing nationallicence Biotechnology nationallicence Materials science nationallicence Schimleck L. R. aut Yazaki Y. aut Holzforschung Walter de Gruyter 57/5(2003-08-20), 527-532 0018-3830 57:5<527 2003 57 hfsg https://doi.org/10.1515/HF.2003.078 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/HF.2003.078 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schimleck L. R. aut NATIONALLICENCE 700 1- Yazaki Y. aut NATIONALLICENCE 773 0- Holzforschung Walter de Gruyter 57/5(2003-08-20), 527-532 0018-3830 57:5<527 2003 57 hfsg CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter