Table 2.

Acid-neutralizing capacity of α-humulene.

Material	NaOH Consumtion Volume (μL)	Acid-Neutralizing Capacity (%)
Control	50.67 ± 0.94	−
CaCO3	14.33 ± 2.62 **	71.71
α-Humulene	45.00 ± 0.82 **	11.18

α-Humulene (α-Hm) was mixed with artificial gastric acid and then incubated at 37 °C for 1 h in a shaking incubator. The neutralizing capacity was measured using 0.1 N NaOH, and phenol red was used as the pH indicator. ** p < 0.01.