Extraction and high performance liquid chromatographic enrichment of polyphenol oxidase from Theobroma cacao seeds

Polyphenol oxidase (PPO) was extracted from cocoa beans and subsequently purified using ammonium sulfate precipitation followed by high performance liquid chromatography (HPLC) for enrichment. HPLC analysis was performed using hydrophobic interaction chromatography which resulted in a 6.5 -fold enrichment and a 24.6 percent recovery of the enzyme. Enrichment was confirmed using polyacrylamide gel electrophoresis under nondenaturing conditions. Comparison of enzyme- and protein-stained electrophoretic gels revealed the presence of possible multiple molecular forms of PPO and the absence of non-enzymic contaminating protein, indicating a rapid procedure of enzyme extraction and enrichment.

Bibliographic Details

Main Authors:	132030 Wong, M.K., 62714 Dimick, P.S., 75846 Hammerstedt, R.H.
Format:	biblioteca
Published:	1990
Subjects:	THEOBROMA CACAO, SEMILLAS, CATECOL OXIDASA, OXIDORREDUCTASAS, EXTRACCION POR PRESION, PURIFICACION, CROMATOGRAFIA LIQUIDA ALTA PRESION,
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