Effects of filtration process on the minor constituents and oxidative stability of virgin olive oil during 24 months storage time | OCL

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Table 2

Color values (L, a, b values) of filtered and unfiltered Saurani during 24 months of storage period.

Storage period (Month)	L value		a value		b value

	F	UF	F	UF	F	UF
0	35.04 ± 0.254^b	34.96 ± 0.021^bc	1.17 ± 0.014^h	1.59 ± 0.077^bc	11.43 ± 0.190^cdef	11.41 ± 0.678^b
1	34.81 ± 0.311^bc	34.84 ± 0.169^bc	1.64 ± 0.017^cdef	1.78 ± 0.007^b	11.09 ± 0.240^cdef	11.42 ± 0.240^b
2	32.41 ± 1.612^ef	32.03 ± 0.311^g	1.91 ± 0.144^bc	2.11 ± 0.003^ab	11.53 ± 1.435^cdef	12.80 ± 0.056^b
3	33.99 ± 2.001^bc	32.27 ± 2.828^fg	2.00 ± 0.056^b	2.02 ± 0.081^b	11.86 ± 0.643^bcd	11.05 ± 0.445^b
4	35.01 ± 0.106^b	35.05 ± 0.169^b	1.73 ± 0.014^bcdef	1.81 ± 0.000^b	11.39 ± 0.014^cdef	11.50 ± 0.021^b
5	34.56 ± 0.700^bc	35.20 ± 0.091^b	1.58 ± 0.049^defg	1.76 ± 0.014^b	10.85 ± 0.579^cdefg	11.28 ± 0.113^b
6	34.91 ± 0.056^bc	33.18 ± 1.244^defg	1.63 ± 0.088^cdef	1.88 ± 0.144^b	11.80 ± 1.230^bcde	12.21 ± 3.641^b
7	33.54 ± 0.565^cde	32.81 ± 0.933^efg	1.69 ± 0.021^bcdef	2.01 ± 0.141^b	10.49 ± 0.240^cdefg	11.99 ± 3.592^b
8	44.41 ± 0.014^a	44.41 ± 0.035^a	2.44 ± 0.003^a	2.56 ± 0.014^a	16.30 ± 0.183^a	16.46 ± 0.007^a
9	27.93 ± 0.169^g	27.48 ± 0.608^h	1.67 ± 0.190^cdef	1.72 ± 0.533^b	8.89 ± 1.187^g	7.47 ± 3.973^de
10	33.82 ± 0.077^bcd	32.97 ± 0.806^efg	1.45 ± 0.010^fghi	1.63 ± 0.017^b	9.56 ± 0.042^fg	10.07 ± 0.098^bcd
11	35.07 ± 0.219^b	34.82 ± 0.183^bcd	1.73 ± 0.060^bcdef	1.69 ± 0.003^b	11.56 ± 0.671^cdef	10.87 ± 0.127^b
12	31.95 ± 0.869^f	32.84 ± 0.544^efg	1.67 ± 0.176^cdef	1.73 ± 0.21^b	11.20 ± 3.648^cdef	11.18 ± 1.407^bc
13	31.45 ± 0.163^f	31.84 ± 0.870^g	1.83 ± 0.064^bcde	1.74 ± 0.014^b	13.70 ± 0.113^b	12.18 ± 0.007^b
14	32.45 ± 0.163^ef	33.34 ± 0.163^cdefg	1.92 ± 0.000^bc	1.77 ± 0.007^b	13.75 ± 0.040^b	12.18 ± 0.000^b
15	34.65 ± 0.007^bc	34.47 ± 0.057^bcde	1.63 ± 0.011^cdef	1.74 ± 0.004^b	11.33 ± 0.106^cdef	10.99 ± 0.078^b
16	34.48 ± 0.028^bc	33.34 ± 0.078^cdefg	1.62 ± 0.018^cdef	1.69 ± 0.014^b	10.99 ± 0.049^cdefg	10.11 ± 1.591^bcd
17	34.53 ± 0.064^bc	34.42 ± 0.014^bcde	1.56 ± 0.032^efgh	1.64 ± 0.011^b	10.92 ± 0.163^cdefg	10.81 ± 0.085^bc
18	34.35 ± 0.000^bc	34.22 ± 0.007^bcde	1.54 ± 0.028^efgh	1.69 ± 0.011^b	10.87 ± 0.113^cdefg	10.60 ± 0.021^bc
19	34.16 ± 1.506^bc	35.11 ± 0.226^b	1.65 ± 0.032^cdef	1.86 ± 0.025^b	10.82 ± 2.284^cdefg	12.40 ± 0.226^bc
20	34.64 ± 0.113^bc	34.04 ± 0.191^bcde	1.89 ± 0.011^bcd	1.96 ± 0.042^b	11.74 ± 0.184^bcde	10.79 ± 0.276^b
21	31.70 ± 2.510^f	28.60 ± 0.997^h	1.27 ± 0.053^hi	1.12 ± 0.325^cd	9.67 ± 0.000^efg	7.76 ± 0.010^cde
22	34.97 ± 0.255^b	34.98 ± 0.226^bc	1.73 ± 0.014^bcdef	1.83 ± 0.000^b	12.22 ± 0.467^bc	12.10 ± 0.205^b
23	32.64 ± 1.322^def	28.05 ± 0.940^h	1.29 ± 0.099^ghi	0.97 ± 0.110^d	9.89 ± 0.721^defg	5.68 ± 0.210^e
24	34.00 ± 0.438^bc	33.86 ± 0.516^bcdef	1.78 ± 0.018^bcde	1.72 ± 0.028^b	11.35 ± 1.824^cdef	10.91 ± 0.375^bc

Note: Different superscript letters in the same column indicate significant difference between mean values (P < 0.01), N = 28.

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