Abstract

                                Drying is one of the most conventional methods used for and before preservation and storage. It also improves the post-harvest quality and is used for the value addition of the product. This present evaluate the the feasibility of a solar tunnel dryer for preparing onion powder. The study aims to minimize the storage losses and provide a cheap alternative to open sun drying. Solar drying would create an income source in a rural area, especially for farmers, and can also be used for a startup or small-scale industry. Onion powder was prepared and a sensory evaluation was done. Market acceptance of prepared onion powder was determined by the data collected from the market survey.

Key words : Drying; Solar tunnel dryer; Onion powder; Small-scale industry