2005
DOI: 10.1016/j.bmcl.2005.06.095
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The synthesis and antioxidant activity of the Schiff bases of chitosan and carboxymethyl chitosan

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Cited by 261 publications
(111 citation statements)
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“…The hydroxyl-radical scavenging activities of Jerusalem artichoke pectin dried by the three diff erent methods were measured according to the method described by Guo et al (2005Guo et al ( , 2007 with slight modifi cations. The reaction solution (total volume 4.5 mL) containing pectin (1, 2, 3, 4, 5 mg/mL) was incubated with EDTA-Fe 2+ (0.945 mmol/L), safranine O (80 mg/L), H 2 O 2 (3%) and potassium phosphate buff er (0.15 mmol/L, pH 7.4) for 30 min at 37°C.…”
Section: Hydroxyl Radical Scavenging Activitiesmentioning
confidence: 99%
“…The hydroxyl-radical scavenging activities of Jerusalem artichoke pectin dried by the three diff erent methods were measured according to the method described by Guo et al (2005Guo et al ( , 2007 with slight modifi cations. The reaction solution (total volume 4.5 mL) containing pectin (1, 2, 3, 4, 5 mg/mL) was incubated with EDTA-Fe 2+ (0.945 mmol/L), safranine O (80 mg/L), H 2 O 2 (3%) and potassium phosphate buff er (0.15 mmol/L, pH 7.4) for 30 min at 37°C.…”
Section: Hydroxyl Radical Scavenging Activitiesmentioning
confidence: 99%
“…The contents of active hydroxyl, amino, amido groups in their polymer chains as well as molecular weight affect the anti-oxidant activity of chitosan and derivatives (Feng et al, 2008, Guo et al, 2005 Sample IC 50 (mg/ml) Standard -Vit.C 0.09 ± 0.00 OC (1 hr) 3.99 ± 0.13 OC (2 hrs) 3.47 ± 0.048 OC (3 hrs) 4.31 ± 0.10 OC (6 hrs) 3.81 ± 0.05 OC (7 hrs) 4.66 ± 0.20 NOCMC 0.98 ± 0.07 Table 2. IC 5 0 value of Oligo chitosan and NO carboxymethyl chitosan Table 2 shows the concentration of oligo chitosan and NOCMC in inhibiting 50 % of ABTS radical formation.…”
Section: Anti-oxidant Activitymentioning
confidence: 99%
“…1 B i C). Innym powodem większej aktywności przeciwrodnikowej plastrów pietruszki w powłokach chitozanowych mogą być udokumentowane przez innych badaczy właściwości przeciwutleniające roztworów chitozanu [10,11,27]. Utrata wartości użytkowej owoców i warzyw w trakcie przechowywania jest w dużej mierze związana z ich więdnięciem, spowodowanym utratą wody.…”
Section: Wyniki I Dyskusjaunclassified
“…Chitozan charakteryzuje się wieloma udowodnionymi właściwościami prozdrowotnymi np. aktywnością przeciwutleniającą czy dodatnim wpływem na zatrzymywanie witaminy C w owocach, jak też oddziaływaniem grzybobójczym i grzybostatycznym, dlatego jest pożądanym składnikiem do tworzenia powłok jadalnych [2,5,10,11,21,27,32].…”
unclassified