Underwater Shockwave Pretreatment Process to Improve the Scent of Extracted Citrus junos Tanaka (Yuzu) Juice

Table 2

Volatile composition of yuzu juices.

Compound	RI	Relative concentration (%)
		KY			NLY
	ZB-WAX Plus	Control	SW; 2.5 kV	SW; 3.5 kV	Control	SW; 2.5 kV	SW; 3.5 kV
α-Pinene	990	1.51	1.52	1.72	1.81	1.89	2.15
α-Thujene	993	—	—	—	0.08	0.16	0.11
β-Pinene	1077	0.43	0.48	0.50	1.11	1.13	1.15
Sabinene	1090	—	—	—	—	—	0.12
Myrcene	1127	2.44	2.23	2.20	1.86	1.91	1.94
α-Phellandrene	1135	0.10	0.33	0.17	0.75	0.79	0.78
α-Terpinene	1149	0.17	0.16	0.15	0.32	0.29	0.32
Limonene	1169	86.77	83.50	85.26	72.46	71.42	71.70
β-Phellandrene	1180	0.40	1.59	0.91	4.06	4.55	4.43
γ-Terpinene	1215	7.19	8.49	7.90	14.65	14.85	15.14
p-Cymene	1242	0.32	0.42	0.42	0.80	0.97	0.78
α-Terpinolene	1253	0.29	0.27	0.26	0.44	0.43	0.42
Copaene	1462	0.01	0.04	0.02	0.01	0.03	0.02
Linalool	1495	0.06	0.46	0.28	1.06	0.87	0.35
Caryophyllene	1573	—	—	—	—	—	0.07
(E)-β-Farnesene	1613	0.04	0.22	0.08	0.30	0.25	0.30
γ-Cadinene	1682	0.16	0.11	0.08	0.07	0.09	0.05
Bicyclogermacrene	1706	—	—	—	0.07	0.06	0.07
δ-Cadinene	1721	0.02	0.06	0.04	0.03	0.06	0.03
Total		99.89	99.88	99.97	99.89	99.77	99.92

RI: Retention Index values were determined relative to n-alkanes on the ZB-WAX Plus column. The correct isomer was not identified. SW represents shockwave treatment.