TABLE 1.

Physicochemical indices of Daqu of special-flavor liquor relative.

Sample	Moisture (%)	Acidity (mmol/10 g)	Reducing sugars (g/100 g)	Acid protease activity (U/g)	Esterification ability (mg/g)	α -Amylase activity (U/g)	Saccharification ability (U/g)
Surface part of Daqu	12.06 ± 0.82a	1.52 ± 0.12a	1.69 ± 0.07a	61.43 ± 4.75a	49.73 ± 2.74a	962.00 ± 10.49a	432.11 ± 17.77a
Central part of Daqu	13.14 ± 0.17b	1.67 ± 0.08b	1.16 ± 0.1b	35.87 ± 2.70b	40.89 ± 3.32b	804.00 ± 5.42b	378.40 ± 31.26b

Values followed by different letters are significantly different for different cultures at P < 0.05.