Shelf-Life Prediction of Extra Virgin Olive Oils Using an Empirical Model Based on Standard Quality Tests

Table 3

Median values of the 20 samples collected quarterly during 30 months directly from retail shelves (200 samples).

Sampling date	Initial BBD	Updated BBD	Difference (in months)	FFA	PV			IND	PPP	DAGs	Defects	Fruitiness	Bitterness	Pungency
Sep-13	Jun-15	Jun-15	0.2	0.21	7.99	1.51	0.11	22.92	2.60	83.37	0.00	5.00	3.00	3.60
Dec-13	Jul-15	Sep-15	2.1	0.23	6.41	1.55	0.09	26.22	3.35	78.51	0.00	4.50	2.65	3.40
Mar-14	Sep-15	Aug-15	−1.0	0.18	7.65	1.64	0.13	27.32	5.80	70.70	0.00	4.50	2.50	3.00
Jun-14	Oct-15	Jul-15	−3.4	0.22	6.65	1.54	0.11	31.10	8.74	62.87	0.00	4.50	3.00	3.30
Sep-14	Jan-16	Oct-15	−3.1	0.22	7.51	1.72	0.14	28.00	8.54	70.84	0.00	5.00	3.00	3.50
Dec-14	Apr-16	Jun-16	2.2	0.22	6.85	1.76	0.11	23.96	4.36	74.63	0.00	4.75	2.75	3.00
Mar-15	Jul-16	May-16	−1.6	0.23	6.68	1.71	0.12	23.87	6.70	61.33	0.00	4.50	3.00	3.00
Jun-15	Jul-16	Jan-16	−5.6	0.30	12.62	1.65	0.11	22.84	8.20	48.75	0.00	4.50	3.00	3.50
Sep-15	Jul-17	May-17	−1.8	0.23	5.06	1.55	0.12	29.48	4.00	73.30	0.00	4.63	2.88	3.00
Dec-15	Aug-17	Jul-17	−1.6	0.21	5.76	1.48	0.10	29.80	5.34	72.99	0.00	4.75	3.00	3.50
Average			−1.4	0.22	7.32	1.611	0.112	26.6	5.8	69.7	0.0	4.7	2.9	3.3
Standard deviation			2.4	0.03	2.06	0.098	0.014	3.0	2.2	9.8	0.0	0.2	0.2	0.3