Plant Biotechnology

Project Description

Horticultural crops are highly perishable in nature and quickly deteriorate after harvest due to inadequate postharvest handling practices and non-availability of storage facilities. In developing countries like Pakistan, postharvest losses are particularly high in case of summer fruits and vegetables, since temperature is the major determinant in the shelf-life of fresh produce. Refrigerated storage is the best option but is energy extensive, requires huge initial investment and is not easy to install. Moreover, existing energy crises in Pakistan limits the adoption of cold storage technology. Small land holdings and financial constraints of growers confine the use of high capital venture. In the absence of proper storage facility, the farmers usually sell their produce in local market soon after harvest.Low cost ecofriendly Zero Energy Cool Chambers (ZECC) are currently being used in many countries including India, Japan, Tanzania and Ghana for on-farm storage of horticultural produce. However, this technology has not been introduced in Pakistan yet. Vehari is located in Southern Punjab where socioeconomic condition of farmer is poor and most of the farmers are vegetable growers. Moreover climate of Vehari is also hot and dry which results in more postharvest losses to the small scale growers who did not afford expensive cold storage facilities. To address these issues a low cost, ecofriendly ZECC will be constructed at COMSATS Institute of Information Technology Vehari, Campus.In ZECC, moist sand is filled between two brick walls, one nested inside of the other. Warm air, picks up the water molecules from moist sand and increases humidity in the storage chamber.Horticultural crops (fruit, vegetables and flowers) along with various postharvest treatments (packaging materials and chemical treatments), will be kept in ZECC as well as in ambient conditions in laboratory. Shelf-life performance and physico-chemical quality will be evaluated and the data will be statistically analyzed. Costs benefit ratios based upon the cost of ZECC construction (one time for 2 years) using local materials and benefits such as reduced losses and/or increased market value will also be determined. Outcome will also be communicated through a concluding seminar at the end of the project to disseminate this technology to farmers and retailers. In future ZECC will be used for demonstration and for executing various research trials. 

Members

  • Samina  Khalid