Table 7.

Mean (%) and RSD (%) of recoveries.

Compound	Low level				High Level
	Mean	Mean	RSD	RSD	Mean	Mean	RSD	RSD
	White	Red	White	Red	White	Red	White	Red
γ-Butyrolactone	189.1	191.9	1.45	2.56	189.4	198.6	4.23	0.14
γ-Hexalactone	88.1	86.7	3.05	5.62	88.6	88.5	1.80	0.77
Whiskey-lactone I	144.3	145.2	9.11	1.98	144.2	143.1	1.05	1.46
γ-Octalactone	76.8	81.3	2.06	3.21	78.1	80.1	0.65	2.10
Whiskey-lactone II	76.8	80.1	1.36	8.15	74.7	76.9	1.26	1.65
γ-Nonalactone	93.2	101.6	3.73	1.79	94.2	107.0	1.26	1.05
γ-Decalactone	136.5	142.8	0.96	3.45	137.5	147.4	2.33	0.38
δ-Decalactone	109.3	108.2	1.79	4.58	108.5	109.1	1.27	2.01
γ-Undecalactone	112.0	116.5	0.99	2.10	111.0	112.6	1.31	1.17