An experiment was carried out to evaluate “The effect of sulphuring on physical parameters of dried ginger (Zingiber officinale Rosc.) genotypes” at COH, Mudigere during 2021-2022. The experiment was laid out in a Factorial Randomized Complete Block Design. Zingiber officinale Rosc. is a rhizomatous perennial herb spice crop in the Zingiberaceae family. About 30 per cent of the ginger that is produced in India is turned into dried ginger, 50 per cent is used as green or fresh ginger, and the remaining 40 per cent is utilised as seed. Farmers now a days practicing sulphuring or sulphitation while drying ginger to get bleaching effect which is harmful to farmers as well as consumers. This research was conducted to know the safe level of sulphur concentration for drying ginger. Peeled, whole ginger rhizomes were sulphured for 12 hrs and were dried under polytunnel dryer at 60oC. The results from the experiments can be concluded that, Maran and Himachal varieties are best suitable for producing dry ginger and the maximum dry weight was noticed in Maran (1.76 kg) and the highest dry matter was noticed in Himachal (7.42g) at 3.5 (g/kg) sulphur concentration.

Pre-treatment, sulphuring, dried ginger, dry recovery percentage, polytunnel drying method

Among the different varieties, the physical parameters were found to be the best in the Maran and Himachal varieties for dry weight and dry recovery percentage, which were major contribution to the final dry yield and 3.5 g/kg of sulphur concentration was found to be superior for all physical parameters.

Nagireddy Manasa, Sadashiv Nadukeri, Shashikala S. Kolakar, Kantharaj Y., Ganapathi, M. and Raviraja Shetty G. (2022). Effect of Sulphuring on Physical Parameters of Dry Ginger (Zingiber officinale) Genotypes. Biological Forum – An International Journal, 14(4a): 286-290.