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. 2016 May 13;17(5):720. doi: 10.3390/ijms17050720

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© 2016 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

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Typical ATR/FTIR molecular spectral for alfalfa: (a) whole mid-IR spectrum region (ca. 4000–800 cm⁻¹); (b) structural carbohydrate related spectrum region (ca. 1485–1188 cm⁻¹); (c) cellulosic compound related spectrum region (ca. 1294–1188 cm⁻¹); (d) total carbohydrate related spectrum region (ca. 1190–930 cm⁻¹); (e) non-structural carbohydrate related spectrum region (ca. 931–875 cm⁻¹).

Typical ATR/FTIR molecular spectral for alfalfa: (a) whole mid-IR spectrum region (ca. 4000–800 cm⁻¹); (b) structural carbohydrate related spectrum region (ca. 1485–1188 cm⁻¹); (c) cellulosic compound related spectrum region (ca. 1294–1188 cm⁻¹); (d) total carbohydrate related spectrum region (ca. 1190–930 cm⁻¹); (e) non-structural carbohydrate related spectrum region (ca. 931–875 cm⁻¹).