Fig. 7
From: Raman spectroscopy enables phenotyping and assessment of nutrition values of plants: a review
Raman spectra (left) collected from the whole green bean from Arabica (A) and from Robusta (B). Spectrum (C) represents the difference of A, B to show more clearly the Raman bands of kahweol. The experimental Raman spectrum of neat kahweol is shown in trace (D). Results of chemometric analysis of coffee beans (right) demonstrate the possibility of accurate identification of coffee varieties. The caption and figure reproduced with permission from Keidel et al. [81]