Use of Beta vulgaris as natural coloring agent for foods and cosmetics in Libya

ABSTRACT:

Color is the main feature of any food item as it enhances the appeal and acceptability of food. Currently, there is increasing awareness among people towards natural dyes and dye yielding plants due to severe health problems. Beet scientifically known as Beta vulgaris belongs to Chenopodiaceae family and locally known in Libyan markets as "Banjer". The present study aimed to study of beet from Libyan markets as coloring agent in food and cosmetic. Beet juice was prepared by hot extraction using methanol and then examined for its activity against bacteria by using the agar well diffusion method and also as antioxidant by using 2,2, Diphenyl-1-picryhydrazyl (DPPH• ) assay. Beet juice also investigated phytochemically which indicated that beet is a rich source of flavonoids. Beet juice examined for the presence of aflatoxines (B1, B2, G1and G2), the beet juice was free from mentioned toxic substances. Therefore, the juice is safe. Finally Beet juice was evaluated as a food (Cakes) and cosmetic (Hair dye) coloring agents. The juice showed a weak antioxidant activity, good antimicrobial activity against gram positive bacteria and accepted to many volunteers in color and taste questionnaires when it's added to homemade cakes. The ability of juice to augment of Henna color; the best mixture with long lasting coloring was a 50:50 mixture.  

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Further details PDF Link: http://www.jocpr.com/articles/use-of-beta-vulgaris-as-natural-coloring-agent-for-foods-and-cosmetics-in-libya.pdf

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