Table 5 Average pH results of fish fillets covered with indicator biofilms during 14 days of storage.

From: Production of Oncorhynchus mykiss biosensor based on polyvinyl alcohol/chitosan nanocomposite using phycocyanin during refrigerated storage

Treatment

Day 0

Day 1

Day 7

Day 14

T1

6.02 ± 0.01 Da

6.25 ± 0.02 Ca

6.64 ± 0.03 Ba

7.02 ± 0.02 Aa

T2

6.02 ± 0.01 Da

6.21 ± 0.02 Cb

6.38 ± 0.03 Bb

6.67 ± 0.01 Ab

T3

6.02 ± 0.01 Da

6.14 ± 0.02 Cc

6.30 ± 0.03 Bc

6.55 ± 0.01 Ac

T4

6.01 ± 0.01 Da

6.10 ± 0.01 Cd

6.35 ± 0.02 Bb

6.45 ± 0.02 Ad

T5

6.01 ± 0.01 Da

6.13 ± 0.01 Cd

6.27 ± 0.01 Bc

6.39 ± 0.01 Ae

  1. T1: fish coated with PVA/NCH-NC without PC; T2: fish coated with PVA/NCH/PC-NC (0.5% PC); T3: fish coated with PVA/NCH/PC-NC (1% PC); T4: fish coated with PVA/NCH/PC-NC (1.5% PC) and code T5: fish coated with PVA/NCH/PC-NC (2% PC).
  2. Different small and capital letters indicate a significant difference in the column and row respectively (p < 0.05).