This study was conducted to investigate the feasibility of determining tannin content in sorghum grains with near-infrared reflectance spectroscopy (NIRS). A total of 110 sorghum grain samples were collected. The data matrix of the pretreated NIRS was randomly divided into a calibration set (Nc=77 samples) and a prediction set (Np=33 samples). The analysis of tannin content was based on the colorimetric method of GBT 15686-2008. Diffuse reflectance spectra of 110 sorghum samples were generated on a Fourier-transform NIRS with a scanning range of 12800-4000 cm-1 and resolution of 16 cm-1 and 64 scans. Several spectra pretreatment methods were compared to for an optimum spectral pretreatment method. The optimal model was determined according to coefficient of determination for calibration (R2CAL), root mean standard error of calibration (RMSECAL), coefficient of determination for cross-validation (R2CV), root mean standard error of cross-validation (RMSECV) and the residual predictive deviation (RPD). The results showed that the tannin content of the sorghum grains ranged from 0.01% to 2.12% DM with the average of 0.58%, and first derivative was the optimal spectral pretreatment with the lowest RMSECV of 0.14. The absorption peaks of the optimal model mainly located at 9402-7492 cm-1 and 5452-4244 cm-1. The RPD of calibration, cross-validation and external validation were 6.22, 4.22 and 3.0, respectively. The findings suggest that the established model using NIRS is effective to quantify tannin content in sorghum grains rapidly.
Published in | International Journal of Animal Science and Technology (Volume 5, Issue 1) |
DOI | 10.11648/j.ijast.20210501.12 |
Page(s) | 7-12 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2021. Published by Science Publishing Group |
Tannin, Near-infrared Spectroscopy, Sorghum
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APA Style
Yongsheng Wang, Jie Li, Bo Wang, Yuting Zhang, Junling Geng, et al. (2021). Effective Quantification of Tannin Content in Sorghum Grains Using Near-infrared Spectroscopy. International Journal of Animal Science and Technology, 5(1), 7-12. https://doi.org/10.11648/j.ijast.20210501.12
ACS Style
Yongsheng Wang; Jie Li; Bo Wang; Yuting Zhang; Junling Geng, et al. Effective Quantification of Tannin Content in Sorghum Grains Using Near-infrared Spectroscopy. Int. J. Anim. Sci. Technol. 2021, 5(1), 7-12. doi: 10.11648/j.ijast.20210501.12
AMA Style
Yongsheng Wang, Jie Li, Bo Wang, Yuting Zhang, Junling Geng, et al. Effective Quantification of Tannin Content in Sorghum Grains Using Near-infrared Spectroscopy. Int J Anim Sci Technol. 2021;5(1):7-12. doi: 10.11648/j.ijast.20210501.12
@article{10.11648/j.ijast.20210501.12, author = {Yongsheng Wang and Jie Li and Bo Wang and Yuting Zhang and Junling Geng and Li Xin Wen and Aike Li}, title = {Effective Quantification of Tannin Content in Sorghum Grains Using Near-infrared Spectroscopy}, journal = {International Journal of Animal Science and Technology}, volume = {5}, number = {1}, pages = {7-12}, doi = {10.11648/j.ijast.20210501.12}, url = {https://doi.org/10.11648/j.ijast.20210501.12}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijast.20210501.12}, abstract = {This study was conducted to investigate the feasibility of determining tannin content in sorghum grains with near-infrared reflectance spectroscopy (NIRS). A total of 110 sorghum grain samples were collected. The data matrix of the pretreated NIRS was randomly divided into a calibration set (Nc=77 samples) and a prediction set (Np=33 samples). The analysis of tannin content was based on the colorimetric method of GBT 15686-2008. Diffuse reflectance spectra of 110 sorghum samples were generated on a Fourier-transform NIRS with a scanning range of 12800-4000 cm-1 and resolution of 16 cm-1 and 64 scans. Several spectra pretreatment methods were compared to for an optimum spectral pretreatment method. The optimal model was determined according to coefficient of determination for calibration (R2CAL), root mean standard error of calibration (RMSECAL), coefficient of determination for cross-validation (R2CV), root mean standard error of cross-validation (RMSECV) and the residual predictive deviation (RPD). The results showed that the tannin content of the sorghum grains ranged from 0.01% to 2.12% DM with the average of 0.58%, and first derivative was the optimal spectral pretreatment with the lowest RMSECV of 0.14. The absorption peaks of the optimal model mainly located at 9402-7492 cm-1 and 5452-4244 cm-1. The RPD of calibration, cross-validation and external validation were 6.22, 4.22 and 3.0, respectively. The findings suggest that the established model using NIRS is effective to quantify tannin content in sorghum grains rapidly.}, year = {2021} }
TY - JOUR T1 - Effective Quantification of Tannin Content in Sorghum Grains Using Near-infrared Spectroscopy AU - Yongsheng Wang AU - Jie Li AU - Bo Wang AU - Yuting Zhang AU - Junling Geng AU - Li Xin Wen AU - Aike Li Y1 - 2021/01/28 PY - 2021 N1 - https://doi.org/10.11648/j.ijast.20210501.12 DO - 10.11648/j.ijast.20210501.12 T2 - International Journal of Animal Science and Technology JF - International Journal of Animal Science and Technology JO - International Journal of Animal Science and Technology SP - 7 EP - 12 PB - Science Publishing Group SN - 2640-1312 UR - https://doi.org/10.11648/j.ijast.20210501.12 AB - This study was conducted to investigate the feasibility of determining tannin content in sorghum grains with near-infrared reflectance spectroscopy (NIRS). A total of 110 sorghum grain samples were collected. The data matrix of the pretreated NIRS was randomly divided into a calibration set (Nc=77 samples) and a prediction set (Np=33 samples). The analysis of tannin content was based on the colorimetric method of GBT 15686-2008. Diffuse reflectance spectra of 110 sorghum samples were generated on a Fourier-transform NIRS with a scanning range of 12800-4000 cm-1 and resolution of 16 cm-1 and 64 scans. Several spectra pretreatment methods were compared to for an optimum spectral pretreatment method. The optimal model was determined according to coefficient of determination for calibration (R2CAL), root mean standard error of calibration (RMSECAL), coefficient of determination for cross-validation (R2CV), root mean standard error of cross-validation (RMSECV) and the residual predictive deviation (RPD). The results showed that the tannin content of the sorghum grains ranged from 0.01% to 2.12% DM with the average of 0.58%, and first derivative was the optimal spectral pretreatment with the lowest RMSECV of 0.14. The absorption peaks of the optimal model mainly located at 9402-7492 cm-1 and 5452-4244 cm-1. The RPD of calibration, cross-validation and external validation were 6.22, 4.22 and 3.0, respectively. The findings suggest that the established model using NIRS is effective to quantify tannin content in sorghum grains rapidly. VL - 5 IS - 1 ER -