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Lowbush blueberry quality changes in response to prepacking delays and holding temperatures

E. D. Jackson, K. A. Sanford, R. A. Lawrence, K. B. McRae and R. Stark

Postharvest Biology and Technology Vol: 15 Issue: 2 Pages: 117-126.

1999

บทคัดย่อ

Lowbush blueberry quality changes in response to prepacking delays and holding temperatures

The quality of stored wild lowbush blueberries (Vaccinium angustifolium Ait. and V. myrtilloides Michx.) was examined with different prepacking temperatures (5, 12, 19, and 26°C), delay times (3, 9, 21, and 45 h), and subsequent storage times (7, 14, and 21 d) at 0°C. All factors were considered both individually and in combination. Quality after storage was defined by changes in ten attributes: split berries, bloom, firmness, weight loss, moisture, soluble solids, titratable acids, pH, microbial counts, and marketable berries. We concluded that when there is minimal impact damage during packing and berries are stored at 0°C, cooling before packing is beneficial only when the delay time exceeds 21 h. Precooling creates severe condensation problems during the subsequent packing at ambient temperatures. Minimizing delays is the best option for maximizing fresh lowbush blueberry quality.