Table 1. Esters detected in Cheongsoo, Chardonnay and Riesling white wines

	Compounds	CAS¹⁾	RT²⁾	Cheongsoo		Chardonnay		Riesling		OTV⁵⁾(μg/L)	Odor descriptor
	Compounds	CAS¹⁾	RT²⁾	Conc.³⁾(μg/L)	OAV⁴⁾	Conc.(μg/L)	OAV	Conc.(μg/L)	OAV	OTV⁵⁾(μg/L)	Odor descriptor
	Esters
1	Ethyl Acetate	141-78-6	2.306	0.00^a6)	-⁷⁾	226.61^a	<1	0.00^a	-	12,000^y	pineapple
2	Isoamyl acetate	123-92-2	7.093	488.28^a	16.28	0.00^b	-	0.00^b	-	30^z	banana, sweet
3	Hexyl acetate	142-92-7	12.372	153.66^a	<1	16.08^b	<1	0.00^b	-	670^x	fruity, pear
4	Ethyl butanoate	105-54-4	4.634	52.40^a	2.62	95.08^a	4.75	0.00^a	-	20^z	strawberry
5	Ethyl hexanoate	123-66-0	10.806	885.46^a	110.68	140.91^b	17.61	274.56^b	34.32	8^y	fruity, apple
6	Ethyl heptanoate	106-30-9	15.402	0.00^a	-	3.18^a	1.45	0.00^a	-	2.2^y	fruity, apple
7	Ethyl octanoate	106-32-1	19.198	2169.44^a	433.89	397.22^b	79.44	274.01^b	54.80	5^z	sweet, pear
8	Methyl formate	107-31-3	21.165	96.67^a	-	36.49^a	-	198.55^a	-
9	Hexyl propionate	2445-76-3	24.501	0.00^a	-	0.00^a	-	68.10^a	-
10	Ethyl decanoate	110-38-3	27.416	963.99^a	4.82	185.77^b	<1	51.42^b	<1	200^z	fruity, grape
11	Ethyl trans-4-decenoate	76649-16-6	29.406	100.33^a	-	21.82^ab	-	0.00^b	-
12	Ethyl 9-decenoate	67233-91-4	29.503	0.00^a	-	6.97^a	-	0.00^a	-	100^y	rose
13	Methyl 2-hydroxybenzoate	119-36-8	32.109	0.00^b	-	8.95^a	-	3.42^b	-	Nf⁸⁾	minty, sweet
14	Methyl N-hydroxybenzenecarboximidoate	NIST⁸⁾,222866	33.419	500.87^a	-	171.25^a	-	653.94^a	-
15	Phenethyl acetate	103-45-7	33.831	105.79^a	-	63.81^a	-	62.76^a	-	250^w	pleasant, floral
16	Ethyl dodecanoate	106-33-2	34.857	60.11^a	-	0.00^a	-	10.75^a	-	3,500^y	sweet, fruity
	Subtotal			5577.02		1374.14		1597.51

¹⁾CAS, chemical abstract service.
²⁾RT, retention time.
³⁾Conc., concentration.
⁴⁾OAV was calculated by dividing the concentration by odor threshold value of the compound.
⁵⁾OTV: ^zFerreira et al., 2000 (27); ^yWelke et al., 2014 (32); ^xJiang & Zhang, 2010(33); ^wLi et al., 2008 (34).
⁶⁾Different letters within each rows indicates statistical differences (n=3, p<0.05).
⁷⁾Not found.
⁸⁾National institute of standards and technology.