Modifying folate and polyphenol concentrations in Lamb's lettuce by the use of LED supplemental lighting during cultivation in greenhouses

Długosz-Grochowska, Olga; Kołton, Anna; Wojciechowska, Renata

doi:10.1016/j.jff.2016.07.020

Cited by 49 publications

(24 citation statements)

References 32 publications

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“…The rutin content in lamb's lettuce was shown to be highest after applying a blue:red ratio of 1:1. Keeping the total PPFD constant, less blue light, HPSL, cold or warm white LEDs yielded lower contents (Długosz-Grochowska et al, 2016).…”

Section: Flavonolsmentioning

confidence: 99%

Effects of Light on Secondary Metabolites in Selected Leafy Greens: A Review

et al. 2020

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In contrast to the primary metabolism, responsible for essential synthesis mechanisms and mass balance in plants, the secondary metabolism is not of particular importance for each cell but for the plant organism as its whole. Most of these metabolites show antioxidant properties and are beneficial for human health. In order to affect accumulation of those metabolites, light is an essential factor. It is possible to select various combinations of light intensity and light quality to address corresponding photoreceptors and synthesis. However, the plethora of additional variables considering environmental conditions such as temperature, relative humidity or cultivation method complicate defining specific "light recipes". This review summarizes experiments dealing with consumable leafy greens such as lettuce or basil and the enhancement of three selected metabolites-anthocyanins, carotenoids and flavonols.

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Section: Flavonolsmentioning

confidence: 99%

Effects of Light on Secondary Metabolites in Selected Leafy Greens: A Review

et al. 2020

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“…Given the fact that light was the only variable in the test, it was reasonable to consider light as a regulating factor of folate biosynthesis during the sprouting of sweet corn seeds. Previously researchers have reported illumination enhanced total folate contents in lettuce 51 and other crops. However, few researchers have studied the expression of relevant genes under light stimulus 52 .…”

Section: Resultsmentioning

confidence: 96%

The manipulation of gene expression and the biosynthesis of Vitamin C, E and folate in light-and dark-germination of sweet corn seeds

Liu

Xiang

et al. 2017

Sci Rep

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This study investigates the potential interrelationship between gene expression and biosynthesis of vitamin C, E and folate in sweet corn sprouts. Germination of sweet corn kernels was conducted in light and dark environments to determine if this relationship was regulated by photo-illumination. Results indicated that light and dark environments affected the DHAR, TMT and GTPCH expression and that these genes were the predominant genes of vitamin C, E and folate biosynthesis pathways respectively during the germination. Levels of vitamin C and folate increased during the germination of sweet corn seeds while vitamin E had a declining manner. Sweet corn sprouts had higher vitamin C and E levels as well as relevant gene expression levels in light environment while illumination had little influence on the folate contents and the gene expression levels during the germination. These results indicate that there might be a collaborative relationship between vitamin C and folate regulation during sweet corn seed germination, while an inhibitive regulation might exist between vitamin C and E.

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“…Increasing blue light dosage has been recognized to increase the level of phenolics in lamb lettuce [ 47 ], of phenols and antioxidant activity in pea sprouts [ 48 ], and of carotenoids in some microgreens [ 15 ]. Blue light is reported to stimulate the accumulation of carotenoids via cryptochromes [ 49 , 50 ].…”

Section: Discussionmentioning

confidence: 99%

Effects of Different Light Spectra on Final Biomass Production and Nutritional Quality of Two Microgreens

Toscano

Cavallaro²,

Ferrante

et al. 2021

Plants

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To improve microgreen yield and nutritional quality, suitable light spectra can be used. Two species—amaranth (Amaranthus tricolor L.) and turnip greens (Brassica rapa L. subsp. oleifera (DC.) Metzg)—were studied. The experiment was performed in a controlled LED environment growth chamber (day/night temperatures of 24 ± 2 °C, 16 h photoperiod, and 50/60% relative humidity). Three emission wavelengths of a light-emitting diode (LED) were adopted for microgreen lighting: (1) white LED (W); (2) blue LED (B), and (3) red LED (R); the photosynthetic photon flux densities were 200 ± 5 µmol for all light spectra. The response to light spectra was often species-specific, and the interaction effects were significant. Morphobiometric parameters were influenced by species, light, and their interaction; at harvest, in both species, the fresh weight was significantly greater under B. In amaranth, Chl a was maximized in B, whereas it did not change with light in turnip greens. Sugar content varied with the species but not with the light spectra. Nitrate content of shoots greatly varied with the species; in amaranth, more nitrates were measured in R, while no difference in turnip greens was registered for the light spectrum effect. Polyphenols were maximized under B in both species, while R depressed the polyphenol content in amaranth.

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Modifying folate and polyphenol concentrations in Lamb's lettuce by the use of LED supplemental lighting during cultivation in greenhouses

Cited by 49 publications

References 32 publications

Effects of Light on Secondary Metabolites in Selected Leafy Greens: A Review

Effects of Light on Secondary Metabolites in Selected Leafy Greens: A Review

The manipulation of gene expression and the biosynthesis of Vitamin C, E and folate in light-and dark-germination of sweet corn seeds

Effects of Different Light Spectra on Final Biomass Production and Nutritional Quality of Two Microgreens

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