Abstract
SUMMARY Mangoes (var. Tommy Atkins) were exposed to ethylene and acetylene over a range of concentrations at high humidity for 24 h at 25°C, then ripened in air alone. Ripeness was assessed after 4 and 8 days by analysis of texture, colour development, soluble solids and acid contents. Ethylene in air at concentrations of 0.01 ml litre ‐1 and above or acetylene at 1.0 ml litre ‐1 were found to initiate ripening. Treatment with 0.01 ml litre ‐1 acetylene resulted in limited softening but had no effect on the other ripening changes analysed. Individual ripening processes responded differently to treatment: texture changes were most rapidly affected, while the rate of acidity losses was often reduced in ethylene treated fruits. Acetylene‐treated fruits at concentrations of 0.01 and 0.1 ml litre ‐1 showed delayed ripening when compared to those treated with either 1.0 ml litre ‐1 acetylene or ethylene. Increased acetylene concentrations of 2.0 ml litre ‐1 gave a similar response to 1.0 ml litre ‐1 , although in some instances there were indications of inhibitory effects.
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Claims 9
Claim · model-written summary
Ethylene at 0.01 ml litre ‐1 or above initiated ripening.
- Taxon
- mango
_from_India.jpg?width=60)
Mangifera indicat0 - Treatment
- Ethylene in air at concentrations of 0.01 ml litre ‐1 and abovee0
- Outcome
- ripeninge0
- Direction
- initiatee0
- Value
- 0.01 ml litre ‐1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_from_India.jpg?width=500)
Verbatim
e0“Ethylene in air at concentrations of 0.01 ml litre ‐1 and above or acetylene at 1.0 ml litre ‐1 were found to initiate ripening.”
t0“mango fruit ripening”
Claim · model-written summary
Acetylene at 1.0 ml litre ‐1 initiated ripening.
- Taxon
- mangoMangifera indicat0
- Treatment
- acetylene at 1.0 ml litre ‐1e0
- Outcome
- ripeninge0
- Direction
- initiatee0
- Value
- 1.0 ml litre ‐1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“acetylene at 1.0 ml litre ‐1 were found to initiate ripening”
t0“mango fruit ripening”
Claim · model-written summary
Low-dose acetylene caused limited softening.
- Taxon
- mangoMangifera indicat0
- Treatment
- 0.01 ml litre ‐1 acetylenee0
- Outcome
- softeninge0
- Direction
- limitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with 0.01 ml litre ‐1 acetylene resulted in limited softening”
t0“mango fruit ripening”
Claim · model-written summary
Low-dose acetylene had no effect on other measured ripening changes.
- Taxon
- mangoMangifera indicat0
- Treatment
- 0.01 ml litre ‐1 acetylenee1
- Outcome
- other ripening changes analysede0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“had no effect on the other ripening changes analysed”
e1“Treatment with 0.01 ml litre ‐1 acetylene resulted in limited softening”
t0“mango fruit ripening”
Claim · model-written summary
Texture changed most rapidly after treatment.
- Taxon
- mangoMangifera indicat0
- Outcome
- texture changese0
- Direction
- most rapidly affectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“texture changes were most rapidly affected”
t0“mango fruit ripening”
Claim · model-written summary
Ethylene often reduced the rate of acidity loss.
- Taxon
- mangoMangifera indicat0
- Treatment
- ethylenee0
- Outcome
- rate of acidity lossese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rate of acidity losses was often reduced in ethylene treated fruits”
t0“mango fruit ripening”
Claim · model-written summary
Acetylene at 0.01 ml litre ‐1 delayed ripening relative to 1.0 ml litre ‐1 acetylene or ethylene.
- Taxon
- mangoMangifera indicat0
- Treatment
- 0.01e0
- Outcome
- ripeninge0
- Direction
- delayede0
- Comparator
- 1.0 ml litre ‐1 acetylene or ethylenee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acetylene‐treated fruits at concentrations of 0.01 and 0.1 ml litre ‐1 showed delayed ripening when compared to those treated with either 1.0 ml litre ‐1 acetylene or ethylene.”
t0“mango fruit ripening”
Claim · model-written summary
Acetylene at 0.1 ml litre ‐1 delayed ripening relative to 1.0 ml litre ‐1 acetylene or ethylene.
- Taxon
- mangoMangifera indicat0
- Treatment
- 0.1 ml litre ‐1e0
- Outcome
- ripeninge0
- Direction
- delayede0
- Comparator
- 1.0 ml litre ‐1 acetylene or ethylenee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acetylene‐treated fruits at concentrations of 0.01 and 0.1 ml litre ‐1 showed delayed ripening when compared to those treated with either 1.0 ml litre ‐1 acetylene or ethylene.”
t0“mango fruit ripening”
Claim · model-written summary
Acetylene at 2.0 ml litre ‐1 gave a similar response to 1.0 ml litre ‐1, with possible inhibition.
- Taxon
- mangoMangifera indicat0
- Treatment
- 2.0 ml litre ‐1e0
- Outcome
- similar responsee0
- Direction
- similare0
- Qualifier
- indications of inhibitory effectse0
- Comparator
- 1.0 ml litre ‐1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased acetylene concentrations of 2.0 ml litre ‐1 gave a similar response to 1.0 ml litre ‐1 , although in some instances there were indications of inhibitory effects.”
t0“mango fruit ripening”
The same questions in other papers
ethene · quality: postharvest · Mangifera indica (mango)Positive and negative results
14 papers in the same direction as this paper · 2 in the opposite direction
- positive
- no effect
- no effect
13 papers more in this group
See all 17 papers →acetylene · quality: postharvest · Mangifera indica (mango)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.