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. 2017 Jan 6;22(1):98. doi: 10.3390/molecules22010098

Table 1.

Total antioxidant capacity (TAC) of raw and cooked pork meat covered/uncovered with sodium alginate, chitosan, and sodium alginate-chitosan polyelectrolyte complex during 0, 7, and 14 days of chill storage.

Variant Storage Time (Days) DPPH FRAP
Raw Meat Cooked Meat Raw Meat Cooked Meat
Meat control 0 15.38 ± 0.14 hi 15.06 ± 0.39 i−l 11.97 ± 0.41 ab 9.43 ± 0.19 bc
A1 13.08 ± 0.18 a–c 12.61 ± 0.22 a–c 17.85 ± 0.64 e–h 14.26 ± 0.15 k
A2 14.77 ± 0.04 e–h 13.74 ± 0.12 d–h 18.06 ± 0.29 e–i 16.14 ± 0.19 h
C1 13.98 ± 0.08 cf 12.76 ± 0.11 a–d 10.77 ± 0.31 a 13.30 ± 0.18 ij
C2 14.24 ± 0.01 dg 13.77 ± 0.22 d–h 11.96 ± 0.13 ab 12.62 ± 0.60 hi
C3 15.01 ± 0.13 fh 14.55 ± 0.11 g–k 16.61 ± 0.35 e 13.54 ± 0.05 jk
PEC1 13.04 ± 0.68 ac 12.98 ± 0.53 b–e 11.63 ± 1.05 ab 11.28 ± 0.17 fg
PEC2 12.63 ± 1.01 ab 12.33 ± 0.60 ab 16.68 ± 0.45 e 11.65 ± 0.24 g
PEC3 16.22 ± 0.22 i 13.58 ± 0.05 c–g 14.60 ± 0.96 d 14.17 ± 0.48 k
PEC4 12.17 ± 0.35 a 11.95 ± 0.21 a 12.15 ± 0.40 ab 12.70 ± 0.24 hi
PEC5 12.80 ± 0.39 ab 13.10 ± 0.22 b–f 14.68 ± 1.62 d 15.09 ± 0.45 l
PEC6 14.17 ± 0.06 df 13.89 ± 0.08 e–h 14.38 ± 0.40 cd 15.30 ± 0.18 lm
Meat control 7 15.58 ± 0.42 hi 17.58 ± 0.36 op 13.09 ± 0.15 bc 8.90 ± 0.15 b
A1 15.27 ± 0.01 g–i 15.28 ± 0.18 j–l 17.42 ± 0.14 e–g 20.14 ± 0.10 su
A2 18.50 ± 0.24 k 19.37 ± 0.16 rs 19.30 ± 0.15 h–j 21.38 ± 0.11 t
C1 13.88 ± 0.03 ce 14.11 ± 0.09 f–i 17.18 ± 0.12 ef 9.84 ± 0.11 cd
C2 14.54 ± 0.13 eh 14.71 ± 0.09 h–k 17.79 ± 0.03 e–h 10.68 ± 0.05 ef
C3 15.53 ± 0.06 hi 16.00 ± 0.26 lm 19.85 ± 0.12 jk 12.06 ± 0.30 gh
PEC1 14.08 ± 0.04 cf 13.92 ± 0.12 e–h 19.54 ± 0.09 ij 11.79 ± 0.26 g
PEC2 14.55 ± 0.59 eh 15.52 ± 0.26 kl 21.74 ± 0.20 l 19.07 ± 0.02 qr
PEC3 16.21 ± 0.45 i 16.69 ± 0.19 m–o 21.61 ± 0.27 l 20.98 ± 0.05 t
PEC4 13.35 ± 0.28 bd 14.43 ± 0.13 g–j 21.34 ± 0.05 kl 16.43 ± 0.32 no
PEC5 15.55 ± 0.66 hi 14.79 ± 0.11 h–k 21.28 ± 0.50 kl 18.66 ± 0.24 q
PEC6 17.31 ± 0.07 j 16.50 ± 0.14 mn 23.74 ± 0.36 mn 21.57 ± 0.16 t
Meat control 14 17.56 ± 0.43 j 17.49 ± 0.27 op 12.94 ± 0.13 bc 7.90 ± 0.03 a
A1 19.27 ± 0.06 kl 14.97 ± 0.62 i–k 24.11 ± 0.41 n 20.98 ± 0.05 tu
A2 21.24 ± 0.09 n 19.77 ± 1.03 rs 22.52 ± 0.43 lm 21.19 ± 0.21 t
C1 20.71 ± 0.07 mn 19.00 ± 0.03 qr 16.86 ± 0.33 ef 9.35 ± 0.23 bc
C2 22.57 ± 0.25 o 20.28 ± 0.10 st 12.95 ± 0.12 bc 10.38 ± 0.45 de
C3 24.06 ± 0.06 p 21.05 ± 0.16 t 18.36 ± 0.89 f–j 15.95 ± 0.28 mn
PEC1 18.86 ± 0.33 kl 17.39 ± 0.13 n–p 14.76 ± 0.69 d 17.64 ± 0.82 p
PEC2 19.78 ± 0.17 lm 19.00 ± 0.24 qr 17.16 ± 0.35 ef 17.15 ± 0.36 op
PEC3 20.38 ± 0.36 mn 20.89 ± 0.26 t 19.92 ± 0.08 jk 21.22 ± 0.05 t
PEC4 19.72 ± 0.09 lm 13.77 ± 0.59 d–h 18.80 ± 0.27 g–j 19.65 ± 0.17 rs
PEC5 20.99 ± 0.03 n 18.35 ± 0.37 pq 22.51 ± 0.54 lm 20.93 ± 0.18 t
PEC6 23.13 ± 0.42 op 19.83 ± 0.03 rs 24.22 ± 0.10 n 21.69 ± 0.12 t

Values with different letters (a–t) within the same column differ significantly (p < 0.05), ± standard error, results expressed as mmol Trolox eq/kg of meat, n = 3.