Physicochemical Composition of Buckwheat Microgreens Grown under Different Light Conditions

최미경,; 장문식,; 엄석현,; 민관식,; 강명화,

doi:10.3746/jkfn.2015.44.5.709

Cited by 21 publications

(11 citation statements)

References 25 publications

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“…Some studies have confirmed the positive effect of blue light on the accumulation of mineral nutrients in various microgreens [ 21 , 38 , 39 , 40 ]. Moreover, other studies have reported a positive red light effect on mineral nutrient content in buckwheat and beet microgreens [ 28 , 38 ]. These studies have mainly investigated short-term blue light as supplemental to other illumination or the long-term effects of monochromatic blue and red light or their dichromatic illumination with one ratio.…”

Section: Discussionmentioning

confidence: 99%

“…However, there is still a lack of information on how manipulation of the light spectrum affects changes in the mineral element content of various leafy vegetables, and the available information is contradictory. Some studies have demonstrated the positive effect of short-term monochromatic blue light or its percentage in different light spectrum compositions on the mineral element content in plants [ 25 , 26 , 27 , 28 , 29 ]. Some authors have reported that red LED or its higher percentage in blue–red lighting increased some mineral nutrients in marigold [ 30 ], lettuce [ 31 ], and basil [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Different Ratios of Blue and Red LED Light on Brassicaceae Microgreens under a Controlled Environment

Brazaitytė

Miliauskienė

Vaštakaitė-Kairienė

et al. 2021

Plants

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The consumption of microgreens has increased due to their having higher levels of bioactive compounds and mineral nutrients than mature plants. The lighting conditions during the cultivation of microgreens, if optimally selected, can have a positive effect by further increasing their nutritional value. Thus, our study aimed to determine the changes in mineral nutrients contents of Brassicaceae microgreens depending on different blue–red (B:R) light ratios in light-emitting diode (LED) lighting and to evaluate their growth and nutritional value according to different indexes. Experiments were performed in controlled environment growth chambers at IH LRCAF, 2020. Microgreens of mustard (Brassica juncea ‘Red Lace’) and kale (Brassica napus ‘Red Russian’) were grown hydroponically under different B:R light ratios: 0%B:100%R, 10%B:90%R, 25%B:75%R, 50%B:50%R, 75%B:25%R, and 100%B:0%R. A 220 μmol m−2 s−1 total photon flux density (TPFD), 18 h photoperiod, 21/17 ± 2 °C temperature and 60% ± 5% relative humidity in the growth chamber were maintained during cultivation. We observed that an increasing percentage of blue light in the LED illumination spectrum during growth was associated with reduced elongation in the microgreens of both species and had a positive effect on the accumulation of mostly macro- and micronutrients. However, different B:R light ratios indicate a species-dependent response to changes in growth parameters such as leaf area, fresh and dry mass, and optical leaf indexes such as for chlorophyll, flavonol, anthocyanin, and carotenoid reflectance.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Different Ratios of Blue and Red LED Light on Brassicaceae Microgreens under a Controlled Environment

Brazaitytė

Miliauskienė

Vaštakaitė-Kairienė

et al. 2021

Plants

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“…Improving their qualities is an exciting avenue of research and biotechnology, as properties of microgreens can be enhanced through various stimuli which may be synergic, while also easily available. Improvement of microgreens quality using LEDs has already been described in numerous species, such as rice [ 27 ], buckwheat [ 23 ], amaranth, pea, kale, broccoli, mustard, basil, borage, beet, parsley [ 25 ], basil [ 64 ], Brassica spp. [ 19 ], etc.…”

Section: Discussionmentioning

confidence: 99%

“…The effects of LED illumination in microgreen cultivation has been investigated in several species, such as Brassica oleracea , B. juncea , B. rapa [ 19 , 20 ], pea, broccoli, mustard, borage, amaranth, kale, beet, parsley [ 21 ], Valerianella locusta [ 22 ], buckwheat [ 23 ], Perilla frutescens [ 24 ], etc. In basil microgreens, research on light quality regarded the effect of red light supplementation on total phenolic content and antioxidant activity [ 21 ]; red, blue and far-red supplementation on antioxidant activity [ 25 ]; ultraviolet A (UV-A) supplementation on growth, phenolic, anthocyanin, ascorbate and tocopherol synthesis [ 24 ]; and blue light dosage on growth, ascorbate, total phenolic, anthocyanin, flavonoid contents and 2,2-diphenyl-1-picrylhydrazyl (DPPH) antioxidant activity [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Blue and Red LED Illumination Improves Growth and Bioactive Compounds Contents in Acyanic and Cyanic Ocimum basilicum L. Microgreens

et al. 2017

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Microgreens are an excellent source of health-maintaining compounds, and the accumulation of these compounds in plant tissues may be stimulated by exogenous stimuli. While light quality effects on green basil microgreens are known, the present paper aims at improving the quality of acyanic (green) and cyanic (red) basil microgreens with different ratios of LED blue and red illumination. Growth, assimilatory and anthocyanin pigments, chlorophyll fluorescence, total phenolic, flavonoids, selected phenolic acid contents and antioxidant activity were assessed in microgreens grown for 17 days. Growth of microgreens was enhanced with predominantly blue illumination, larger cotyledon area and higher fresh mass. The same treatment elevated chlorophyll a and anthocyanin pigments contents. Colored light treatments decreased chlorophyll fluorescence ΦPSII values significantly in the green cultivar. Stimulation of phenolic synthesis and free radical scavenging activity were improved by predominantly red light in the green cultivar (up to 1.87 fold) and by predominantly blue light in the red cultivar (up to 1.73 fold). Rosmarinic and gallic acid synthesis was higher (up to 15- and 4-fold, respectively, compared to white treatment) in predominantly blue illumination. Red and blue LED ratios can be tailored to induce superior growth and phenolic contents in both red and green basil microgreens, as a convenient tool for producing higher quality foods.

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“…Moreover, with the development of the urban farming industry, there is an increasing interest in their commercial production . Microgreens may be grown in greenhouses, or indoors, with artificial light sources, in the soil or, most commonly, in soil‐less systems, using organic or inorganic solid growing media or hydroponics . Despite the short growing cycle, the commercial production of microgreens requires particular attention, and the choice of the growing medium represents one of the most critical aspects of the production process.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical, agronomical and microbiological evaluation of alternative growing media for the production of rapini (Brassica rapa L.) microgreens

et al. 2016

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Physicochemical Composition of Buckwheat Microgreens Grown under Different Light Conditions

Cited by 21 publications

References 25 publications

Effect of Different Ratios of Blue and Red LED Light on Brassicaceae Microgreens under a Controlled Environment

Effect of Different Ratios of Blue and Red LED Light on Brassicaceae Microgreens under a Controlled Environment

Blue and Red LED Illumination Improves Growth and Bioactive Compounds Contents in Acyanic and Cyanic Ocimum basilicum L. Microgreens

Physicochemical, agronomical and microbiological evaluation of alternative growing media for the production of rapini (Brassica rapa L.) microgreens

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