Factors affecting resistance of banana fruit to compression and impact bruising

Abstract

Factors affecting resistance of banana fruit to bruising were investigated by estimating the minimum (threshold) compression forces and impact energies (both applied through 13.5, 19 and24.5"C (4,52,4.72 and 4.46 N , respectively). In contrast, impact bruising thresholds were afected by delay after harvest and temperature in the opposite direction to compression bruising thresholds, increasing from 93 to 120 p J following a 2-day delay after harvest and from 74 to 104 p J as a result of elevating temperature from 19 to 30°C. Further work will therefore be necessary to determine which of the two types of influence is

Banana Peel Physiological Post-Harvest Disorders: A Review

“…Peel bruising can be assessed by impacting ripened bananas, harvested at optimal thermal sum, with a small steel ball (19 mm) down a guiding tube from a range of standard heights at several energies. The weaker impact energy to produce bruising is, the more sensitive banana is [30].…”

“…Using appropriate commodities conditioning can prevent peel bruising [47]. Because higher turgidity allows to elevate the threshold at which banana peel is sensitive to bruising, it would be better to harvest fruit in the morning and to improve next steps in order to reduce water loss [30]. Reducing temperature during post-harvest chain could reduce damages caused by bruising [22].…”

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“…The weaker impact energy to produce bruising is, the more sensitive banana is. 30 Importance: Peel bruising has been identified as a major cause of quality loss, resulting in a decreasing commercial value. 31 Peel bruising is superficial, thus damages are perceptible from the outside and can prevent potentially the act of purchase.…”

“…46 Because higher turgidity allows to elevate the threshold at which banana peel is sensitive to bruising, it would be better to harvest fruit in the morning and to improve next steps in order to reduce water loss. 30 Reducing temperature during post-harvest chain could reduce damages caused by bruising. 22…”

Assessment and Characterizing Mechanical Damage in Packaged Bananas in the Post-harvest Supply Chain

“…Mechanical damage in fruits can occur due to compression, impact and vibration when fruits are transported in packages or in bulk bins [12][13][14]. Bruising can occur due to impacts or compression forces [15,16] resulting in peel and/or flesh damage in bananas depending on the severity of the impact/pressure. Damage caused by friction occurs due to the relative movement of the fruit against other contacting surfaces.…”