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Grape (Vitis vinifera L.) is an important fruit of subtropical regions. It is known for its excellent flavour, colour, delicious taste and nutritional value. Grapes are very good source of copper, vitamin B 1, B 2 and K (Rolle, 2011). Grape is one of the important commercial fruit crop in India. India holds 9 th rank in grapes production in the world. India's overall production of grapes was 3.20 million tonnes in 2014 -15 (NCAER, 2016. About 8% of total production of grapes worth of about Rs. 1,666 crores is exported every year (NRCG, 2015). The fruit is highly perishable in nature, and cannot be stored as such for longer periods under ambient conditions. In India per capita postharvest losses of grapes account for about 8.63% of production (Jha et al., 2015), which calls for proper preservation and processing facilities in areas where surplus quantities are grown. Therefore, development of suitable process technology is important through which valueadded products could be prepared from Grapes. Grapes can be transformed into valueadded products such as raisin, wine, juice,

Cd 0.8-x Pb x Zn 0.2 S (x= 0-0.8) semiconductor powders have been prepared by controlled Co-precipitation Method in an alkaline medium using Thiourea as a sulphide source. Pellets of these powders are sintered at 800 0 C for 2hours in Nitrogen atmosphere. X-Ray Diffractograms of these samples showed that they possess polycrystalline nature and its phase varied from Hexagonal to Cubic. Lattice parameters of all the compounds are determined. The dc electrical Conductivity of these bulk pellets has been studied using the Keithley electrometer over the temperature range 77-300K. It is observed that electrical conductivity increases with the increase in Pb concentration. The electrical conductivity measurements show that Cd 0.8-x Pb x Zn 0.2 S compounds possess mixed conduction at low temperatures and is observed that the conductivity of Cd 0.8-x Pb x Zn 0.2 S, mixed Semiconductors is enhanced with the inclusion of Pb. The results are explained based on the defects included by Pb atoms.

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