Table 3.

Ester components in the volatile compounds of soypaste.

No	Name	RI		Smell description	Log3 FD
		WAX	DB-5
1	Ethyl acetate	885	<600	Ether fragrance, sweet fruit such as pineapple	3
2	Ethyl 2-methylbutyrate	1051	845	Strong apple skin, pineapple skin and immature sweet aroma of plum skin	<1
3	n-Butyl acetate	1070	820	Strong fruit aroma, similar to pear, banana aroma	6
4	Ethyl 3-methylbutyrate	1134	—	Similar to apple, bananas aromas and sweet and sour smell	<1
5	Ethyl caproate	1235	996	Fragrant fruits like pineapple and wine	4
6	Ethyl lactate	1293	825	Sweet, fruit, roasted, old rum aroma, wine aroma
7	Octanoic acid ethyl ester	1431	1209	Brandy aroma, wax incense, milk and cream, fruit, wine	<1
8	Ethyl benzoate	1647	1188	Fruit, medicine fragrant aroma	1
9	Ethyl phenylacetate	1765	1258	Strong and sweet fragrance of honey. Significant and sweet incense rose	6
10	Ethyl palmitate	>2000	—	Incense wax smell, butter aroma	2