Production of Functional Fermented Milk Beverages Supplemented with Pomegranate Peel Extract and Probiotic Lactic Acid Bacteria

Table 6

Volatile compounds (ppm) of FMPO 150, FMPO 300, and FM during storage.

Volatile compounds	FM		FMPO 150		FMPO 300
	t1	t30	t1	t30	t1	t30
Acetaldehyde	22.5	17.7	28.71	23.91	20.5	15.7
Acetoin	9.8	6.61	15.1	10.11	9.91	7.78
Diacetyl	6.6	4.11	5.66	3.78	3.5	2.8
2-Pentanone	2.2	0.87	0.70	0.45	0.15	0.092
2-Heptanone	0.04	0.02	0.05	0.01	0.21	0.05
2-Nonanone	0.12	0.087	0.3	0.24	0.09	0.052
2-Butanone, 3-hydroxy	—	—	0.02	0.012	—	—
Butanoic acid	0.31	—	0.013	0.096	—	—
Hexanoic acid	0.62	0.21	0.56	1.32	0.94	1.48
Benzaldehyde	—	0.081	0.012	0.06	—	—

FM: the control fermented milk beverage; FMPO 150: fermented milk beverages supplemented with pomegranate peel extract (150 mg/L); FMPO 300: fermented milk beverages supplemented with pomegranate peel extract (300 mg/L).