Grasas y Aceites, Vol 50, No 2 (1999)

Effect of phenolic compounds extracted from sunflower seeds on native lipoxygenase activity


https://doi.org/10.3989/gya.1999.v50.i2.647

E. Kubicka
Division of Food Science, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Poland

L. Jędrychowski
Division of Food Science, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Poland

R. Amarowicz
Division of Food Science, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Poland

Abstract


Extracts of lipoxygenase were obtained from sunflower seeds using 12 different extraction mixtures, and lipoxygenase activity and content of phenolic compounds in the extracts were determined. The content of phenolic compounds was determined as the ratio of optical densities at 320/280nm. Statistical analysis of the results for the extracts showed a significant correlation between the lipoxygenase activity and the OD320nm/OD280nm ratio with r = 0.619. However, after dialysis of the extracts, no correlation was found.

Keywords


Lipoxygenase (activity); Sunflower; Phenolic compounds.

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