ABSTRACT

Staining is a technique used to add color to microbes, animal tissue, and plant tissues to enhance the optical contrast using stains or dyes. Most of the stains which are currently used in bacteriological, mycological and histopathological studies are chemically synthesized, known as synthetic dyes. Despite of knowing the deleterious effects of synthetic dyes on humans and the environment, we continue to use them due to their ready availability, efficiency and most importantly, they are economically priced with diverse range of colors. The indiscriminate use of synthetic dyes in laboratories and diagnostic centers has resulted in water, air, land pollution with hazardous effect on biotic life. In this review we have discussed on the various plant-based natural pigments which are a safe eco-friendly alternative to toxic synthetic dyes. It is indeed very important to replace toxic chemical-based stain with non-toxic biodegradable natural dyes which can be easily prepared and environment friendly. Keywords: Synthetic dyes, natural pigments, plant dyes, hazardous
Publication date: 01/11/2023

https://ijbpas.com/pdf/2023/November/MS_IJBPAS_2023_7567.pdf

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https://doi.org/10.31032/IJBPAS/2023/12.11.7567