Abstract
Abstract Strawberries are a highly appreciated perishable commodity, with a very short shelf life due to fungal development, dehydration, and softening. The main objective was to evaluate the effect of a postharvest UV-B treatment (10 kJ/m 2 ) and a visible spectrum LED illumination (full white, blue, green, and red) during 13 days at 3.3 °C on the main physicochemical and sensory quality attributes of strawberries, fungal development, and changes in their main bioactive compounds (total phenolic content (TPC), total antioxidant capacity (TAC), and anthocyanin content). No UV-B treatment and darkness storage was used as control. UV-B combined with visible LED lighting did not report significant effect on decay reduction. However, when combined with green and red LEDs, softening was accelerated, although firmness after 13 days remained above the commercial threshold (firmness reductions of 32.7 and 23% compared to initial day, respectively). The strawberries stored under full white, blue, green, and red illumination showed higher TPC compared to darkness (19.7, 14.6, 17.0, and 16.6%, respectively). The combination of UV-B and LED illumination during storage reported a TPC cumulative increase, especially under red light (35.2%), suggesting a synergistic activation of light-responsive metabolic pathways. This effect was not observed for TAC, where a UV-B treatment by itself reported an 80.4% increase, while the illumination during storage did not result in a synergistic effect. Anthocyanins did not report significant accumulation, indicating a limited response of this pathway to postharvest light stimuli. Further studies should elucidate the underlying molecular mechanisms by which UV-B and visible light modulate quality attributes and defense responses in strawberries. Graphical Abstract
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Claims 13
Claim · model-written summary
UV-B plus visible LEDs did not significantly reduce decay.
- Taxon
- Strawberries
_single2.jpg?width=60)
Fragaria ×ananassat0 - Treatment
- UV-B combined with visible LED lightinge0
- Outcome
- decay reductione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“UV-B combined with visible LED lighting did not report significant effect on decay reduction.”
t0“Strawberries”
Claim · model-written summary
UV-B with green LEDs accelerated softening, with 32.7% firmness reduction from the initial day after 13 days but above the commercial threshold.
- Taxon
- StrawberriesFragaria ×ananassat0
- Treatment
- greene0
- Outcome
- firmnesse0
- Direction
- reductionse0
- Value
- 32.7e0
- Qualifier
- firmness after 13 days remained above the commercial thresholde0
- Comparator
- initial daye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when combined with green and red LEDs, softening was accelerated, although firmness after 13 days remained above the commercial threshold (firmness reductions of 32.7 and 23% compared to initial day, respectively).”
t0“Strawberries”
Claim · model-written summary
UV-B with red LEDs accelerated softening, with 23% firmness reduction after 13 days but above the commercial threshold.
- Taxon
- StrawberriesFragaria ×ananassat0
- Treatment
- red LEDse0
- Outcome
- firmnesse0
- Direction
- reductionse0
- Value
- 23%e0
- Qualifier
- firmness after 13 days remained above the commercial thresholde0
- Comparator
- initial daye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when combined with green and red LEDs, softening was accelerated, although firmness after 13 days remained above the commercial threshold (firmness reductions of 32.7 and 23% compared to initial day, respectively).”
t0“Strawberries”
Claim · model-written summary
White illumination increased TPC by 19.7% compared with darkness.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- full whitee0
- Outcome
- TPCe0
- Direction
- highere0
- Value
- 19.7e0
- Comparator
- darknesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The strawberries stored under full white, blue, green, and red illumination showed higher TPC compared to darkness (19.7, 14.6, 17.0, and 16.6%, respectively).”
Claim · model-written summary
Blue illumination increased TPC by 14.6% compared with darkness.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- bluee0
- Outcome
- TPCe0
- Direction
- highere0
- Value
- 14.6e0
- Comparator
- darknesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The strawberries stored under full white, blue, green, and red illumination showed higher TPC compared to darkness (19.7, 14.6, 17.0, and 16.6%, respectively).”
Claim · model-written summary
Green illumination increased TPC by 17.0% compared with darkness.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- greene0
- Outcome
- TPCe0
- Direction
- highere0
- Value
- 17.0e0
- Comparator
- darknesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The strawberries stored under full white, blue, green, and red illumination showed higher TPC compared to darkness (19.7, 14.6, 17.0, and 16.6%, respectively).”
Claim · model-written summary
Red illumination increased TPC by 16.6% compared with darkness.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- red illuminatione0
- Outcome
- TPCe0
- Direction
- highere0
- Value
- 16.6%e0
- Comparator
- darknesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The strawberries stored under full white, blue, green, and red illumination showed higher TPC compared to darkness (19.7, 14.6, 17.0, and 16.6%, respectively).”
Claim · model-written summary
UV-B plus LED storage produced a cumulative TPC increase, particularly 35.2% under red light.
- Taxon
- StrawberriesFragaria ×ananassat0
- Treatment
- combination of UV-B and LED illuminatione0
- Outcome
- TPCe0
- Direction
- cumulative increasee0
- Value
- 35.2%e0
- Qualifier
- especially under red lighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of UV-B and LED illumination during storage reported a TPC cumulative increase, especially under red light (35.2%), suggesting a synergistic activation of light-responsive metabolic pathways.”
t0“Strawberries”
Claim · model-written summary
The cumulative TPC effect suggests synergistic activation of light-responsive metabolism.
- Taxon
- StrawberriesFragaria ×ananassat0
- Outcome
- TPC cumulative increasee0
- Qualifier
- synergistic activation of light-responsive metabolic pathwayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of UV-B and LED illumination during storage reported a TPC cumulative increase, especially under red light (35.2%), suggesting a synergistic activation of light-responsive metabolic pathways.”
t0“Strawberries”
Claim · model-written summary
UV-B alone increased TAC by 80.4%.
- Taxon
- StrawberriesFragaria ×ananassat0
- Treatment
- UV-B treatment by itselfe0
- Outcome
- TACe0
- Direction
- increasee0
- Value
- 80.4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This effect was not observed for TAC, where a UV-B treatment by itself reported an 80.4% increase, while the illumination during storage did not result in a synergistic effect.”
t0“Strawberries”
Claim · model-written summary
Storage illumination did not synergistically affect TAC.
- Taxon
- StrawberriesFragaria ×ananassat0
- Treatment
- illumination during storagee0
- Outcome
- TACe0
- Direction
- did not result in a synergistic effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This effect was not observed for TAC, where a UV-B treatment by itself reported an 80.4% increase, while the illumination during storage did not result in a synergistic effect.”
t0“Strawberries”
Claim · model-written summary
Anthocyanins did not significantly accumulate in response to postharvest light.
- Taxon
- StrawberriesFragaria ×ananassat0
- Treatment
- postharvest light stimulie0
- Outcome
- Anthocyaninse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anthocyanins did not report significant accumulation, indicating a limited response of this pathway to postharvest light stimuli.”
t0“Strawberries”
Claim · model-written summary
The authors recommend further study of molecular mechanisms behind UV-B and visible-light effects on strawberry quality and defense.
- Taxon
- strawberriesFragaria ×ananassae0
- Outcome
- elucidate the underlying molecular mechanismse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Further studies should elucidate the underlying molecular mechanisms by which UV-B and visible light modulate quality attributes and defense responses in strawberries.”
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