Fig. 8: Discrimination of honey samples from different flora origins and brands.

a Fluorescence response patterns and b canonical score plot for Tongrentang brand samples. c Fluorescence response patterns and d canonical score plot for Wangshi brand samples. e Fluorescence response patterns and f canonical score plot for jujube honey samples (3.0 mg/mL for each honey sample). Pattern recognition of honey samples using SA11 ([CA] = [CD] = 1.0 μM, [LCG] = 1.0 μM). Canonical score plots for the two factors of simplified fluorescence response patterns obtained from LDA with 95% confidence ellipses. Error bars in a, c, e represent mean ± s.d. (n  =  6 independent experiments). The order of colored symbols from top to bottom in the legend corresponds to the column order of histogram from left to right in a, c, e.