Abstract
Abstract Fruit quality is preserved through cold storage, but climacteric fruits are prone to chilling injury (CI) which limits their shelf life and marketability. Two postharvest treatments, 1 mM methyl jasmonate (MeJA) and 4% (wt/vol) calcium chloride (Ca 2+ ), were separately used to investigate their influences on chilling injury (CI) incidence and fruit quality in unpacked banana cultivar “Grand Nain” during cold storage and subsequent ripening. Banana fruits were dipped for 2 min in aqueous emulsions containing 1% Tween‐80—used here as a surfactant with untreated fruits being used as control. Fruits were stored at 10 ± 2 or optimal 14 ± 2°C temperature and relative humidity 85%–90% for a 20‐day cold storage period and then removed from cold storage at 5, 10, 15, and 20 days followed by ripening at 22 ± 2°C. Treatments with MeJA or Ca 2+ significantly reduced CI in banana fruit during cold storage and subsequent ripening temperature. Untreated controls exhibited increased CI, weight loss, and decreased hue angle, as well as firmness. In contrast, the aforementioned changes were considerably delayed after treatments with MeJA or Ca 2+ . Application of MeJA or Ca 2+ also increased total phenolic compound contents and maintenance of total antioxidant activity throughout cold storage and during ripening periods as compared to that of the control. These findings indicate that coating bananas with 1 mM MeJA or 4% (wt/vol) Ca 2+ can improve the postharvest quality and shelf life of fruits, and it can ameliorate chilling injury during cold storage and at ripening temperature.
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Claims 7
Claim · model-written summary
MeJA significantly reduced banana fruit chilling injury during cold storage and ripening.
Verbatim
e0“Treatments with MeJA or Ca 2+ significantly reduced CI in banana fruit during cold storage and subsequent ripening temperature.”
e1“1 mM methyl jasmonate (MeJA) and 4% (wt/vol) calcium chloride (Ca 2+ )”
e2“untreated fruits being used as control”
Claim · model-written summary
Ca 2+ significantly reduced banana fruit chilling injury during cold storage and ripening.
Verbatim
e0“Treatments with MeJA or Ca 2+ significantly reduced CI in banana fruit during cold storage and subsequent ripening temperature.”
e1“untreated fruits being used as control”
Claim · model-written summary
MeJA delayed weight loss and declines in hue angle and firmness.
Verbatim
e0“Untreated controls exhibited increased CI, weight loss, and decreased hue angle, as well as firmness. In contrast, the aforementioned changes were considerably delayed after treatments with MeJA or Ca 2+ .”
t0“banana fruit”
Claim · model-written summary
Ca 2+ delayed weight loss and declines in hue angle and firmness.
Verbatim
e0“Untreated controls exhibited increased CI, weight loss, and decreased hue angle, as well as firmness. In contrast, the aforementioned changes were considerably delayed after treatments with MeJA or Ca 2+ .”
t0“banana fruit”
Claim · model-written summary
MeJA increased total phenolic content and maintained antioxidant activity compared with control fruit.
Verbatim
e0“Application of MeJA or Ca 2+ also increased total phenolic compound contents and maintenance of total antioxidant activity throughout cold storage and during ripening periods as compared to that of the control.”
t0“banana fruit”
Claim · model-written summary
Ca 2+ increased total phenolic content and maintained antioxidant activity compared with control fruit.
Verbatim
e0“Application of MeJA or Ca 2+ also increased total phenolic compound contents and maintenance of total antioxidant activity throughout cold storage and during ripening periods as compared to that of the control.”
t0“banana fruit”
Claim · model-written summary
The authors conclude that coating bananas with 1 mM MeJA can improve postharvest quality and shelf life.
Verbatim
e0“coating bananas with 1 mM MeJA or 4% (wt/vol) Ca 2+ can improve the postharvest quality and shelf life of fruits, and it can ameliorate chilling injury during cold storage and at ripening temperature.”
The same questions in other papers
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(-)-methyl jasmonate · crop injury · MusaResults agree
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.