Abstract
During 2002 and 2003 seasons the influences of post-harvest dipping treatments of 500 ppm boron (boric acid), 4.0% calcium chloride, 0.25% zinc sulfate, 10 mM sodium benzoate, 2.0 mM salicylic acid, 2.0 mM acetyl salicylic acid, 200 ppm ABG-3168 (ReTain), 0.5% plantacur-E (25.0% alpha-tocopherol) and 3.0% corn starch for 3 min on mature seedy "Balady" guava fruit quality and the incidence of skin browning during 4-days of shelf life at 25°C±3 and 50-60% RH were studied. The results showed that most fruit quality parameters were significantly influenced by the applied treatments. Except the ABG treatment, all the other treatments significantly decreased the incidence of skin browning compared with the control. In this respect, the most effective treatment was sodium benzoate followed by acetyl salicylic acid, s.Jicylic acid, and boron treatments. Except the plantacur-E treatment, all the other treatments significantly decreased the weight loss of fruit compared with the control. Acetyl salicylic acid, sodium benzoate, boron, and calcium chloride treated fruits were significantly firmer than the control. The concentration of fruit acidity was greatly increased in all the treatments during 4-days of shelf life compared to the initial concentration. Acetyl salicylic acid treated fruit contained the highest acidity concentration followed by zinc sulfate and that was significantly higher than all other treatments. Calcium chloride treated fruit contained a significant higher concentration of TSS than all other treatments. There were clear decreases in the concentration of vitamin C (about 24% in the control) during 4-days of shelf life in all the treatments compared to the initial concentration. Boron, calcium chloride, acetyl salicylic acid, zinc sulfate, sodium benzoate, corn, and plantacur-E treated fruit showed Significant higher concentrations of vitamin C than the control. However, salicylic acid and ABG treatments significantly decreased the concentration of vitamin C compared with the control. Surprisingly, there was almost no response of guava fruit to ABG application despite, it is a climacteric fruit type. The results concluded that some of the used compounds (especially sodium benzoate, acetyl salicylic acid, salicylic acid, boron, and zinc sulfate) showed clear effects on maintaining quality and decreasing the incidence of browning. However, non of these compounds, at the used concentrations, could completely eliminate the incidence of browning during shelf life. Applying higher concentrations of these compounds might further inhibit browning and better maintain quality of guava fruit during shelf life.
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Claims 18
Claim · model-written summary
Most guava fruit quality parameters were significantly influenced by dipping treatments.
- Taxon
- GUAVA
Psidium guajavat0 - Treatment
- applied treatmentse0
- Outcome
- fruit quality parameterse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“most fruit quality parameters were significantly influenced by the applied treatments”
Claim · model-written summary
sodium benzoate reduced guava skin browning relative to control.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- sodium benzoatee0
- Outcome
- incidence of skin browninge0
- Direction
- decreasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“Except the ABG treatment, all the other treatments significantly decreased the incidence of skin browning compared with the control. In this respect, the most effective treatment was sodium benzoate followed by acetyl salicylic acid, s.Jicylic acid, and boron treatments.”
Claim · model-written summary
acetyl salicylic acid reduced guava skin browning relative to control.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- acetyl salicylic acide0
- Outcome
- incidence of skin browninge0
- Direction
- decreasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“Except the ABG treatment, all the other treatments significantly decreased the incidence of skin browning compared with the control. In this respect, the most effective treatment was sodium benzoate followed by acetyl salicylic acid, s.Jicylic acid, and boron treatments.”
Claim · model-written summary
boron reduced guava skin browning relative to control.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- borone0
- Outcome
- incidence of skin browninge0
- Direction
- decreasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“Except the ABG treatment, all the other treatments significantly decreased the incidence of skin browning compared with the control. In this respect, the most effective treatment was sodium benzoate followed by acetyl salicylic acid, s.Jicylic acid, and boron treatments.”
Claim · model-written summary
All dipping treatments except plantacur-E reduced fruit weight loss relative to control.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- all the other treatmentse0
- Outcome
- weight loss of fruite0
- Direction
- decreasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“Except the plantacur-E treatment, all the other treatments significantly decreased the weight loss of fruit compared with the control.”
Claim · model-written summary
Acetyl salicylic acid treated fruit was firmer than control.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- Acetyl salicylic acide0
- Outcome
- fruitse0
- Direction
- firmere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“Acetyl salicylic acid, sodium benzoate, boron, and calcium chloride treated fruits were significantly firmer than the control.”
Claim · model-written summary
sodium benzoate treated fruit was firmer than control.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- sodium benzoatee0
- Outcome
- fruitse0
- Direction
- firmere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“Acetyl salicylic acid, sodium benzoate, boron, and calcium chloride treated fruits were significantly firmer than the control.”
Claim · model-written summary
boron treated fruit was firmer than control.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“Acetyl salicylic acid, sodium benzoate, boron, and calcium chloride treated fruits were significantly firmer than the control.”
Claim · model-written summary
calcium chloride treated fruit was firmer than control.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- calcium chloridee0
- Outcome
- fruitse0
- Direction
- firmere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“Acetyl salicylic acid, sodium benzoate, boron, and calcium chloride treated fruits were significantly firmer than the control.”
Claim · model-written summary
Fruit acidity increased over four days in all treatments relative to initial concentration.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- all the treatmentse0
- Outcome
- fruit aciditye0
- Direction
- increasede0
- Comparator
- initial concentratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“The concentration of fruit acidity was greatly increased in all the treatments during 4-days of shelf life compared to the initial concentration.”
Claim · model-written summary
Acetyl salicylic acid yielded the highest fruit acidity, significantly above other treatments.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- Acetyl salicylic acide0
- Outcome
- acidity concentratione0
- Direction
- higheste0
- Comparator
- all other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“Acetyl salicylic acid treated fruit contained the highest acidity concentration followed by zinc sulfate and that was significantly higher than all other treatments.”
Claim · model-written summary
Zinc sulfate ranked next in acidity after acetyl salicylic acid.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- zinc sulfatee0
- Outcome
- acidity concentratione0
- Comparator
- Acetyl salicylic acide0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“Acetyl salicylic acid treated fruit contained the highest acidity concentration followed by zinc sulfate”
Claim · model-written summary
Calcium chloride yielded higher TSS than all other treatments.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- Calcium chloridee0
- Outcome
- concentration of TSSe0
- Direction
- highere0
- Comparator
- all other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“Calcium chloride treated fruit contained a significant higher concentration of TSS than all other treatments.”
Claim · model-written summary
Vitamin C concentrations fell over four days for all treatments, including about 24% in the control.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- all the treatmentse0
- Outcome
- concentration of vitamin Ce0
- Direction
- decreasese0
- Value
- about 24%e0
- Qualifier
- in the controle0
- Comparator
- initial concentratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“There were clear decreases in the concentration of vitamin C (about 24% in the control) during 4-days of shelf life in all the treatments compared to the initial concentration.”
Claim · model-written summary
Boron, calcium chloride, acetyl salicylic acid, zinc sulfate, sodium benzoate, corn and plantacur-E produced higher vitamin C than control.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- Boron, calcium chloride, acetyl salicylic acid, zinc sulfate, sodium benzoate, corn, and plantacur-Ee0
- Outcome
- concentrations of vitamin Ce0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“Boron, calcium chloride, acetyl salicylic acid, zinc sulfate, sodium benzoate, corn, and plantacur-E treated fruit showed Significant higher concentrations of vitamin C than the control.”
Claim · model-written summary
Salicylic acid reduced vitamin C relative to control.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- salicylic acide0
- Outcome
- concentration of vitamin Ce0
- Direction
- decreasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“salicylic acid and ABG treatments significantly decreased the concentration of vitamin C compared with the control.”
Claim · model-written summary
ABG reduced vitamin C relative to control.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- ABGe0
- Outcome
- concentration of vitamin Ce0
- Direction
- decreasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“salicylic acid and ABG treatments significantly decreased the concentration of vitamin C compared with the control.”
Claim · model-written summary
No tested compound completely eliminated browning during shelf life.
- Taxon
- GUAVAPsidium guajavat0
- Treatment
- these compoundse0
- Outcome
- incidence of browninge0
- Qualifier
- at the used concentrationse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GUAVA (Psidium guajava L.)”
e0“non of these compounds, at the used concentrations, could completely eliminate the incidence of browning during shelf life.”
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See all 15 papers →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.