كفاءة تصميم نظام تبريد أولي في تغير بعض صفات الجودة لثمار صنف عنب المائدة الحلواني خلال التخزين المبرد

Abstract EN

This study was conducted on European grape Vitis Vinifera L.

Var.

Helwani, for grape vine in full bearing.

Fruit were picked, during two harvest dates and for three treatments (pre-cooling directly- pre-cooling after 12 h and without pre-cooling).

A 1×1×1 m pre-cooling chamber was designed (cooling efficiency 125 kg\ m3 ) based on iced water and pumped stream air.

In addition to that, we used boxes.

Then handled fruit were transferred to the storage units at 0±1Cо and 90-95% RH for two months.

The initial and monthly measurements for weight loss%, decay%, ripening indicator, firmness kg/cm2 and total soluble solids TSS % were done.

The study showed significant effect of directly application of pre-cooling treatment on decreasing weight loss 0.508% and decay 0.591%.

The study showed significant effect of pre-cooling directly treatment on ripening indicator and firmness kg/cm2 with linear correlation during two months of cold storage.

The where DA meter was 0.41 and firmness was 1.933kg/cm2 .

This study has considered the first research in Syria to investigate the effect of new design of grape pre-cooling system, which is suitable for poor areas and small properties, aiming to improve fruit quality, storage ability, marketability and increase the economic income for the most important table grape cultivar in Syria.