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. 2015 Aug 11;11:1398–1411. doi: 10.3762/bjoc.11.151

Table 1.

Experimental obtained data by different models about the antioxidant characteristics of the studied monomers and dimers.

experimental model model 1
CLa
model 2
lipidAOb
model 3
ORACc

kinetic parameters kAd
[M−1s−1]
PFe
[—]
IDf
[—]
RTEg
[—]

2 (1.7 ± 0.1) × 104 3.5h,i 6.3h,i 3.12 ± 0.34
6 (4.2 ± 0.3) × 104 13.5h,i 29.3h,i 3.04 ± 0.10
3 (2.6 ± 0.2) × 104 3.5h 5.5h 3.85 ± 0.14
7 (5.1 ± 0.3) × 104 5.8h 8.8h 2.97 ± 0.12
4 (2.6 ± 0.2) × 104 5.8 9.8 5.60 ± 0.20
8 (3.4 ± 0.2) × 104 12.8 11.0 5.22 ± 0.13
5 (1.6 ± 0.1) × 104 3.2h 4.4h 2.56 ± 0.10
9 (4.1 ± 0.3) × 104 3.3h 4.2h 1.98 ± 0.06
11 (1.0 ± 0.1) × 106 21.2i 29.3i

aChlorobenzene as medium, ethylbenzene as oxidizing substrate, AIBN (2,2′-azobisisobutyronitrile) as initiator at 50 °C; btriacylglycerols of sunflower oil as oxidizing substrate, without an initiator, at 80 °C; cwater as medium, fluorescein (13) as substrate, AAPH (2,2'-azobisisobutyramidinium chloride) as initiator at 37 °C; drate constant kA value acquired from the slope of the CL time profile at the inflection point according to (dIrel/dt)max = 0.237(kA/(2kt)0.5)RIN; eantioxidant efficiency, determined as protection factor (PF = IPA/IPC), where IPA and IPC are the induction periods in the presence and in the absence of an antioxidant; fantioxidant reactivity as inhibition degree (ID = RC/RA), where RC and RA are the initial rates of lipid autoxidation in the absence and in the presence of the antioxidant; grelative Trolox equivalent (RTE) was calculated according to the following equation (AUC: area under curve) [(AUCSample − AUCBlank)/(AUCTrolox − AUCBlank)] × (molarity of Trolox/molarity of sample); hfrom [19]; ifrom [20].