Natural antibrowning and antioxidant compositions and methods for making the same

摘要

The present invention, provides natural-source compositions having consistent, effective antibrowning and antioxidant characteristics. Additionally, the present invention provides methods for making the antibrowning/antioxidant compositions of the present invention. More specifically, the present invention provides natural-source, browning and oxidizing inhibitor compositions comprising S-sinapyl-L-cysteine, N-L-&ggr;-glutamyl-S-sinapyl-L-cysteine, S-sinapyl glutathione, or various mixtures thereof. Methods for making such natural, antibrowning/antioxidant compositions from pineapple juice and/or from pineapple processing plant waste streams include efficient and effective separation of the present invention compositions from unwanted sugars, acids, phenolic compounds, and other undesirable compounds present in pineapple juice and/or pineapple processing plant waste streams.