Volatile Composition and Enantioselective Analysis of Chiral Terpenoids of Nine Fruit and Vegetable Fibres Resulting from Juice Industry By-Products

Table 4

Chiral markers, calculated LRI, and corresponding enantiomeric ratio for lemon fibre.

Chiral marker	Configuration	LRI	Lemon	Literature data [19]
			α-Pinene^1		R	923	15.4–22.0	25.5–37.8
S	925	84.6–78.0		74.5–62.2
Camphene^1	S	920	72.6–80.7	86.2–92.4
	R	933	27.4–19.3	13.8–7.6
β-Pinene^1	R	946	15.8–21.3	4.2–7.0
	S	956	84.2–78.7	95.8–93.0
Limonene^1	S	1056	0.9–4.2	1.0–2.6
	R	1072	99.1–95.8	99.0–97.4
Linalool^2	R	1212	38.0–49.7	49.5–74.5
	S	1222	62.0–53.3	50.5–25.5
Borneol^2	S	1307	84.5–91.7
	R	1317	15.5–8.3
Terpinen-4-ol^2	S	1319	30.0–43.0	12.0–32.5
	R	1327	70.0–57.0	88.0–67.5
α-Terpineol^1	R	1296	11.0–18.5	35.8–18.0
	S	1309	89.0–81.5	64.2–82.0

and enantiomeric ratios calculated using a diEt-CD column.
and enantiomeric ratios calculated using a Pentyl-CD column.