Yes Turmeric can be used as a anti fungal agent in plant tissue culture media at PPM level. you can refer one of our publication Turmeric powder (Curcuma longa Linn.) as an antifungal agent in plant tissue culture studies. we got some encouraging results.
I have gone through your research paper and appreciate your work but I have doubt regarding the figure 4 provided in your paper. As per figure legend you have used turmeric at 1 g/l showing no contamination, but how the media is white instead of yellowish inspite of turmeric being added. The same is not in case of 2g/l and 0.4g/l.
I feel that colour of the won't be a problem since activated charcoal is also used to remove phenolics which in turn imparts black colour to the media.
Thank you so mush for your appreciation regarding our work on Turmeric
Sir as you mentioned, in fig 2 the slight yellowing of the media (with out Turmeric) most possible due to the heavy fungal contamination. Both in fig 4 and 5 (Turmeric 1.0 g/l and 0.4 g/l ) due to the low ppm levels of turmeric very slight change in the color of media can be noticed and at 2 g/l significant color change can be seen. As turmeric scientifically proven anti fungal agent we inspired to use in plant tissue culture studies.
presently working on the combination of some natural compounds to screen their anti fungal potentials in tissue culture studies.
Many hygenic preparations contain termeric in their composition because of antifungal & antibacterial nature.Turmeric powder can be as antifungal agent as it contains phenolic compds. as antiseptics.
The polyphenolic compound curcumin derived from turmeric and turmeric oil have been proved antifungal, so the powder in raw form can be used as antifugal agents.