Abstract
Guava is a perishable fruit. Edible coating might help prolonging the quality of guava. The objective of this study was to determine the effect of glucomannan (G) or konjac edible coating incorporated with beeswax (BW) and guava leaf extract (E) on the quality of fresh guava compared with water coating (W) and control (C) or uncoated stored at room temperature (29°C) and 95% RH. It was found that guava coated with GBW significantly reduced weight loss and firmness (p<0.05) and extended the shelf-life of guava for 13 days compared with uncoated guava. Water coated guava had higher weight loss compared with uncoated guava. Total soluble solid (TSS) of guava increased significantly in all coating types (p<0.05) during storage. Guava coated with water had the highest TSS. The pH of guava increased during storage and it depended on edible coating types as well. However, the hue angle value of guava had a significant decrease during storage (p<0.05). Using either beeswax or guava leaf extract alone to the glucomannan edible coating might extend the shelf-life of fresh guava. However, the combination of beeswax and guava leaf extract based-glucomannan edible coating did not enhance significantly on the quality shelf-life of fresh guava.
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Claims 11
Claim · model-written summary
GBW coating reduced guava weight loss relative to uncoated fruit.
- Taxon
- guava
Psidium guajavae0 - Treatment
- GBWe0
- Outcome
- weight losse0
- Direction
- reducede0
- Comparator
- uncoated guavae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“guava coated with GBW significantly reduced weight loss and firmness (p<0.05) and extended the shelf-life of guava for 13 days compared with uncoated guava”
Claim · model-written summary
GBW coating reduced guava firmness relative to uncoated fruit.
- Taxon
- guavaPsidium guajavae0
- Treatment
- GBWe0
- Outcome
- firmnesse0
- Direction
- reducede0
- Comparator
- uncoated guavae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“guava coated with GBW significantly reduced weight loss and firmness (p<0.05) and extended the shelf-life of guava for 13 days compared with uncoated guava”
Claim · model-written summary
GBW coating extended guava shelf life by 13 days relative to uncoated fruit.
- Taxon
- guavaPsidium guajavae0
- Treatment
- GBWe0
- Outcome
- shelf-life of guavae0
- Direction
- extendede0
- Value
- 13 dayse0
- Comparator
- uncoated guavae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“guava coated with GBW significantly reduced weight loss and firmness (p<0.05) and extended the shelf-life of guava for 13 days compared with uncoated guava”
Claim · model-written summary
Water coating increased guava weight loss relative to uncoated fruit.
- Taxon
- guavaPsidium guajavae0
- Treatment
- Water coatede0
- Outcome
- weight losse0
- Direction
- highere0
- Comparator
- uncoated guavae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water coated guava had higher weight loss compared with uncoated guava.”
Claim · model-written summary
Total soluble solids rose significantly during storage across coating types.
- Taxon
- guavaPsidium guajavae0
- Treatment
- all coating typese0
- Outcome
- Total soluble solid (TSS)e0
- Direction
- increasede0
- Qualifier
- during storagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total soluble solid (TSS) of guava increased significantly in all coating types (p<0.05) during storage.”
Claim · model-written summary
Water coated guava had the highest total soluble solids.
- Taxon
- guavaPsidium guajavae0
- Treatment
- watere0
- Outcome
- TSSe0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Guava coated with water had the highest TSS.”
Claim · model-written summary
Guava pH increased during storage and depended on coating type.
- Taxon
- guavaPsidium guajavae0
- Treatment
- edible coating typese0
- Outcome
- pH of guavae0
- Direction
- increasede0
- Qualifier
- during storagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pH of guava increased during storage and it depended on edible coating types as well.”
Claim · model-written summary
Guava hue angle decreased significantly during storage.
- Taxon
- guavaPsidium guajavae0
- Treatment
- storagee0
- Outcome
- hue angle value of guavae0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the hue angle value of guava had a significant decrease during storage (p<0.05).”
Claim · model-written summary
Adding beeswax alone to glucomannan coating may extend guava shelf life.
- Taxon
- guavaPsidium guajavae0
- Treatment
- beeswaxe0
- Outcome
- shelf-life of fresh guavae0
- Direction
- extende0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using either beeswax or guava leaf extract alone to the glucomannan edible coating might extend the shelf-life of fresh guava.”
Claim · model-written summary
Adding guava leaf extract alone to glucomannan coating may extend guava shelf life.
- Taxon
- guavaPsidium guajavae0
- Treatment
- guava leaf extracte0
- Outcome
- shelf-life of fresh guavae0
- Direction
- extende0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using either beeswax or guava leaf extract alone to the glucomannan edible coating might extend the shelf-life of fresh guava.”
Claim · model-written summary
Combined beeswax and guava leaf extract in glucomannan coating did not significantly improve guava shelf life.
- Taxon
- guavaPsidium guajavae0
- Treatment
- combination of beeswax and guava leaf extract based-glucomannan edible coatinge0
- Outcome
- quality shelf-life of fresh guavae0
- Direction
- did not enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combination of beeswax and guava leaf extract based-glucomannan edible coating did not enhance significantly on the quality shelf-life of fresh guava.”
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See all 12 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.