Antifungal activity of different natural dyes against traditional products affected fungal pathogens

The various types of traditional craft work being organic origin attack microorganisms due to the carbohydrate content in it. Biological degradation affect the usage, strength utility and value of the products leading to decay and disintegration, splits or cracks, unsightly strains and blotches. So it is essential to treat the raw material and finished products to extend durability and prolong of life. The traditional craft products made from Grass reed leaf and fiber; Bamboo; Areca nut; Palmyra leaf and coconut shell etc. These products are often damaged by fungal biofilm. So they were rejected by exporters and local consumers. So the microbiological intervention is to be applied to prevent the microbial damage in craft products. Many of the fiber products get fungal attack during monsoon seasons with high relative humidity. This fungal attack from a layer over the craft products and consumers reject these products as the fungal infection makes an ugly and dark colour biofilm over the products. This is a major problem the traditional crafts worker endures to address this imperative nee, a microbiological preventive for fungal inhibition is a need of the day. In the last few decades there has been considerable interest in the active compounds present in natural dyes. In example the major curcuminoid is called curcumin (diferuloyl methane), which makes up approximately 90% of the curcuminoid content in turmeric, followed by demethoxycurcumin and bidemethoxycurcumin [20]. Hundreds of in vitro and animal studies have been published describing the antioxidant, anti-inflammatory, antiviral, and antifungal [4, 19] properties of curcuminoids [3,