บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Some physical and biochemical characteristics of damaged pericarp of mangosteen fruit after impact.

Ketsa, S.; Koolpluksee, M.;

Postharvest Biology and Technology Year: 1993 Vol: 2 Issue: 3 Pages: 209-215 Ref: 13 ref.

1993

บทคัดย่อ

Some physical and biochemical characteristics of damaged pericarp of mangosteen fruit after impact.

Unripe and half-ripe (maturity stage 3) mangosteen fruits were dropped from various heights (20-100 cm) onto a concrete floor. Damage to the pericarp increased as drop height increased. The effect on half-ripe fruits was greater than that on unripe samples when dropped from identical heights. Impact had only a slight effect on fruit respiration rate, but the rate of ethylene production was reduced in damaged fruits, although not significantly so, during the first 3 h after impact. In general, the total phenolic content of damaged fruit tissue was lower than that of control samples 1-6 h after impact; the reduction was significant for fruits at the half-ripe stage. Some damaged fruits were dipped in 0.1 mM cycloheximide for 10 min immediately after impact. Cycloheximide treatment reduced fruit firmness slightly and slightly increased total phenolic content. However, the firmness and total phenolic content of control fruits were significantly less and greater, respectively, than comparable values

for damaged fruits, whether treated with cycloheximide or not. The results suggest that the increase in firmness of damaged fruits may be associated with enhanced phenolic metabolism.