Crocin bleaching

Ordoudi SA and Tsimidou MZ. 2006. Crocin bleaching assay (CBA) in structure-radical scavenging activity studies of selected phenolic compounds. J Agric Food Chem 54(25) 9347-9356. [Pg.301]

Perjesi P, Kuzmaa M, Fodora K and Rozmera, Z. 2007. Application of crocin bleaching and deoxyribose degradation tests to assess antioxidant capacity of capsaicinoids and some selected flavonoids. Eur J Pharm Sci 32 39. [Pg.302]

On-line HPLC Crocin Bleaching Assay (HPLC-CBA)... [Pg.113]

Tubaro F, Micossi E, Ursini F. The antioxidant capacity of complex mixtures by kinetic analysis of crocin bleaching inhibition. Journal of the American Oil Chemists Society. 1996 73(2) 173-179. [Pg.119]

Bathaie SZ, Kermani FMZ, Shams A. Crocin Bleaching Assay Using Purified Di-gen-tiobiosyl Crocin (a-crocin) from Iranian Saffron. Iranian Journal of Basic Medical Sciences. 2011 14(5) 399-406. [Pg.119]

Bountagkidoua O, van der Klift EJC, Tsimidou MZ, Ordoudi SA, van Beek TA. An on-line high performance liquid chromatography-crocin bleaching assay for detection of antioxidants. Journal of Chromatography A. 2012 1237 80- 85. [Pg.121]

Fig. 1. pH dependence of total antioxidant capacity of blood plasma and antioxidant activities of individual antioxidants. After Tubaro el al. (T7). TAC was estimated by crocin bleaching the value at pH 7.4 for each was assumed as 1 for each compound and blood plasma. [Pg.221]

Crocin bleaching Crocin ABAP Spectrophotometric (rate) L23, T7... [Pg.224]

Crocin bleaching/ 10 /( M crocin (A443 Ilm = 1.33), Rate of absorbance decrease 8% Blood plasma of young men ... [Pg.228]

Since the crocin-bleaching method is based on competition kinetics, it can also be used to detect pro-oxidant activity (POA), for example, of early MRPs the DPPH method cannot. In fact, in the presence of antioxidants, the crocin-bleaching rate [reaction (1)] is slowed down, because the antioxidant reacts with the radical first and the antioxidant radical formed [reaction (2)] reacts only slowly with the crocin [reaction (3) ]. On the contrary, the pro-oxidant competes with the radical for the crocin [reaction (4)], thus increasing the extent of crocin bleaching 446... [Pg.133]

Peroxy radicals are known to be responsible for the bleaching of carotenoid pigments, such as crocin. Such bleaching can be inhibited by antioxidants.468 492 493 In determining the residual radical scavenging activity of tomato juice, crocin bleaching and the DPPH method gave parallel results 446... [Pg.137]

L. Manzocco, S. Calligaris, and M. C. Nicoli, Assessment of pro-oxidant activity of foods by kinetic analysis of crocin bleaching, J. Agric. Food Chem., 2002, 50, 2767-2771. [Pg.198]

Glucose-lysine- 100°C- Radical (ABAP) Crocin bleaching ... [Pg.314]

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