Comparison of Essential Oils of Houttuynia cordata Thunb. from Different Processing Methods and Harvest Seasons Based on GC-MS and Chemometric Analysis

Figure 5

Relative content of chemical markers of DHC and FHC (a–k), DHC1 and DHC2 (l, m), and FHC1 and FHC2 (n–q). (a) α-Pinene; (b) limonene; (c) β-phellandrene; (d) α-terpineol; (e) 4-tridecanone; (f) ethyl decanoate; (g) nonanal; (h) 1-nonanol; (i) β-cyclocitral; (j) n-hexadecanoic acid; (k) octadecanol; (l) 4-tridecanone; (m) ethyl decanoate; (n) β-myrcene; (o) β-phellandrene; (p) 2,6-octadien-1-ol, 3,7-dimethyl-, acetate, (z)-; (q) phytol.

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