Abstract
The aim of this study is to prevent postharvest quality losses and enhance storage and shelf life of leaf lettuce using LED light treatments. For this purpose, four different colors of (white, green, red, and blue) LED light and darkness conditions were used. Lettuce was stored at a temperature of 5 °C ± 1 °C for 21 days, and after storage, it was kept at room temperature for 96 hr. This study demonstrated that white LED light showed up the best application in terms of maintaining green color, reducing chlorophyll degradation, and increasing the total soluble solid content of lettuce. While the weight loss was reduced by red LED light treatment, the green LED light was effective in reducing the decay rate of lettuce. It was concluded that white, red and green LED lighting treatments are useful for enhancing the storage life of leaf lettuce, whereas the blue LED light treatment showed negative effects. Practical applications Light-emitting diodes (LEDs) is used in horticultural production to increase yield by photosynthesis over decades. In postharvest storage stage, lighting of LED provided some advantages such as reducing of the growth of microorganism, especially citrus varieties. Leafy vegetables are identified susceptible because it contains large amount of water. Also they lose their green color very quickly after harvest. So, postharvest storage life of these type vegetable is quite short. As a result of the present study, chlorophyll (SPAD) content of leaf lettuce was increased by white LED light treatment both during storage and shelf life conditions. Therefore, by this technology, the shelf life of leaf lettuce would be increased by lighting of shelf in the supermarket by white LED, at least.
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Claims 8
Claim · model-written summary
White LED light maintained lettuce green color during storage.
- Taxon
- lettuce
Lactuca sativat0 - Treatment
- white LED lighte0
- Outcome
- green colore0
- Direction
- maintaininge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“lettuce”
e0“white LED light showed up the best application in terms of maintaining green color”
Claim · model-written summary
White LED light reduced lettuce chlorophyll degradation.
- Taxon
- lettuceLactuca sativat0
- Treatment
- white LED lighte0
- Outcome
- chlorophyll degradatione0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“lettuce”
e0“white LED light showed up the best application in terms of maintaining green color, reducing chlorophyll degradation”
Claim · model-written summary
White LED light increased lettuce total soluble solids.
- Taxon
- lettuceLactuca sativat0
- Treatment
- white LED lighte0
- Outcome
- total soluble solid contente0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“lettuce”
e0“white LED light showed up the best application in terms of maintaining green color, reducing chlorophyll degradation, and increasing the total soluble solid content of lettuce”
Claim · model-written summary
Red LED light reduced lettuce weight loss.
- Taxon
- lettuceLactuca sativat0
- Treatment
- red LED light treatmente0
- Outcome
- weight losse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“lettuce”
e0“weight loss was reduced by red LED light treatment”
Claim · model-written summary
Green LED light reduced lettuce decay rate.
- Taxon
- lettuceLactuca sativat0
- Treatment
- green LED lighte0
- Outcome
- decay ratee0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“lettuce”
e0“green LED light was effective in reducing the decay rate of lettuce”
Claim · model-written summary
Blue LED light had negative effects on lettuce storage life.
- Taxon
- lettuceLactuca sativat0
- Treatment
- blue LED light treatmente0
- Outcome
- negative effectse0
- Direction
- negativee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“lettuce”
e0“blue LED light treatment showed negative effects”
Claim · model-written summary
White LED light increased lettuce chlorophyll SPAD content during storage and shelf life.
- Taxon
- lettuceLactuca sativat0
- Treatment
- white LED light treatmente0
- Outcome
- chlorophyll (SPAD) contente0
- Direction
- increasede0
- Qualifier
- both during storage and shelf life conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“lettuce”
e0“chlorophyll (SPAD) content of leaf lettuce was increased by white LED light treatment both during storage and shelf life conditions”
Claim · model-written summary
The authors recommend white, red and green LED light for extending lettuce storage life.
- Taxon
- lettuceLactuca sativat0
- Treatment
- white, red and green LED lighting treatmentse0
- Outcome
- enhancing the storage lifee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“lettuce”
e0“white, red and green LED lighting treatments are useful for enhancing the storage life of leaf lettuce”
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