new approaches on drying process of sultana grape prof. dr. ahmet altindisli ege university, faculty...

New Approaches on Drying Process of

Sultana Grape

New Approaches on Drying Process of

Sultana Grape

Prof. Dr. Ahmet ALTINDISLIProf. Dr. Ahmet ALTINDISLIEge University, Faculty of AgricultureEge University, Faculty of AgricultureBornova-İzmir/TURKEYBornova-İzmir/TURKEYahmet.altindisli@ege.edu.trahmet.altindisli@ege.edu.tr

Estimated World Dried GrapeEstimated World Dried GrapeProduction (Mt)Production (Mt)

Source: Data of International Dried Grape Producer Countries Conference (Estimated)

45%

25%

12%

6%

6%5% 0.7%0.3% Turkey

U.S.A.IranArgentinaS.AfricaChileAvustraliaGreece

Proportion of Dried Grape Producer Proportion of Dried Grape Producer Countries in Total World MarketCountries in Total World Market

Reasons to Produce RaisinReasons to Produce Raisin

Usage as an ingredient in food industry (Mussli, bread, cake, biscuit bakery, exc.),

Longer shelf-life, Lesser storage cost, Stability in price, Being quick and natural energy source.

•Maturity,•Selecting healthy bunches,•No-incurred berry,•Ocratoxin-A

•Maturity,•Selecting healthy bunches,•No-incurred berry,•Ocratoxin-A

Current applications andCurrent applications and

some important points on drying process some important points on drying process

Dipping process

Dipping Solition:

•5 % K2CO3

•1-1,5 % Olive Oil

•Water

Density: 20 kg/m2

Precleaning (Screen Precleaning (Screen shaking)shaking)

Shaker riddle with blower

Plastic boxes is protect dried grape berries from compaction damage

RRooc-type drying systemc-type drying system

Golden Bleach Raisin

Effect of SO2 treatment on berry color

Dry-On-Vine (DOV) Raisin Dry-On-Vine (DOV) Raisin Production.Production.

Three DOV trellis systems; Shaw (swing-arm), open gable, and overhead arbor.

Harvest MachineHarvest Machine

Thank youThank you