| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1711335 | Biosystems Engineering | 2013 | 8 Pages |
•Moisture diffusivity and dehydration rates of table grape stem parts were studied.•Moisture diffusivity of stem parts < those exposed to circulating cold air.•Empirical models successfully described the dehydration kinetics of stem parts.•Henderson and Pabis model predicted dehydration of grape whole stems.
Moisture diffusivity of grape stems was studied under cold airflow storage conditions (1.21 ± 0.25 °C and 1.18 ± 0.23 ms−1) during postharvest storage. The stems were stored without packaging liner films or with packaging liners (packed in non-perforated liner films) under low temperature conditions inside cold room. Effective moisture diffusivity values for stem parts packed in non-perforated liner films were lower than the values obtained for stem parts stored without packaging liners, and varied from 5.06 × 10−14–1.05 × 10−13 m2 s−1. Dehydration rate of stem parts directly exposed (without liners) to circulating cold air was significantly (P < 0.05) higher than the dehydration rates of stem parts packed in non-perforated liner film. Empirical models were applied to describe the dehydration kinetics of the different parts of stem.
Graphical abstractDifferent parts of the grape stem.Figure optionsDownload full-size imageDownload as PowerPoint slide
