Effects of LED illumination spectra on glucosinolate and sulforaphane accumulation in broccoli seedlings

Wang, Junwei; Mao, Shuxiang; Wu, Qi; Yuán, Yǒulù; Liang, Mantian; Wang, Shengze; Huang, Ke; Wu, Qiuyun

doi:10.1016/j.foodchem.2021.129550

Cited by 34 publications

(23 citation statements)

References 33 publications

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“…Glucosinolates are a group of important secondary metabolites in Brassica vegetables (Sun et al, 2021;Wang et al, 2019Wang et al, , 2021Zeng et al, 2021). Our results indicated that individual and total glucosinolate content in postharvest baby mustard decreased during storage, which was consistent with a high rate of senescence.…”

Section: Discussionsupporting

confidence: 63%

“…Similarly, light irradiation has been shown to preserve glucosinolate levels in cabbage, kale (Liu et al, 2015), and broccoli (Jin et al, 2015), during storage. Previous studies have suggested that the gene expressions involved in glucosinolate metabolism is regulated by light irradiation (Casajús et al, 2021;Schuster et al, 2006;Wang et al, 2021). In this study, higher expression levels of glucosinolate biosynthetic genes (CYP79F1, CYP79B2, and CYP79B3) and lower expression level of a glucosinolatedegraded gene (TGG1) compared with control samples were observed in light-treated baby mustard.…”

Section: Discussionmentioning

confidence: 47%

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Light irradiation maintains the sensory quality, health‐promoting phytochemicals, and antioxidant capacity of post‐harvest baby mustard

Lin

et al. 2021

Journal of Food Science

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The ability of white, red, and blue irradiation to maintain sensory quality, health-promoting compounds, and antioxidant capacity, and regulate glucosinolate metabolism-related gene expression in post-harvest baby mustard was studied. Irradiation with 80 µmol m −2 s −1 extended the shelf life of post-harvest baby mustard. Irradiation delayed the increase in weight loss and the decrease in sensory parameter scores and the levels of ascorbic acid, total phenolics, glucosinolate, and antioxidant capacity during storage of baby mustard. Irradiation induced the expression of glucosinolate biosynthesis genes and inhibited glucosinolate degradation gene expression. The glucosinolate content and glucosinolate metabolism-related gene expression in post-harvest baby mustard were higher under white and red light irradiation compared with blue light irradiation. These findings indicate that irradiation (80 µmol m −2 s −1 ), especially of white and red light, is an effective technique for maintaining the sensory and nutritional qualities in post-harvest baby mustard stored at 20 • C.

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Section: Discussionsupporting

confidence: 63%

Section: Discussionmentioning

confidence: 47%

Light irradiation maintains the sensory quality, health‐promoting phytochemicals, and antioxidant capacity of post‐harvest baby mustard

Lin

et al. 2021

Journal of Food Science

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“…For instance, blue (B) light exerted a promotive effect on the content of some bioactive compounds in kale [11] and broccoli [12] sprouts, and in this way has been suggested as a suitable growth spectrum [13,14]. Accordingly, a stimulatory effect of red (R) light and UVA (320-400 nm) on the content of some secondary metabolites has also been suggested [15,16]. Instead, far-red light has been associated with adverse effects on metabolite content [17].…”

Section: Introductionmentioning

confidence: 99%

Contrary to Red, Blue Monochromatic Light Improves the Bioactive Compound Content in Broccoli Sprouts

et al. 2021

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Broccoli sprouts are rich in health-promoting bioactive compounds. Their content depends on both cultivation light quality and temperature. However, these effects have been previously addressed in isolation. Here, the dual inputs of cultivation light quality [blue (B), red (R), mixture of R and B (R+B), mixture of R and UVA (R+UVA)] and air temperature (15, 19, and 23 °C) on determining growth, external quality, and the cotyledon and hypocotyl content of five major bioactive compounds were investigated. The carbohydrate status at harvest and postharvest ratio of variable to maximum fluorescence (Fv/Fm) were also assessed. Hypocotyl length was generally enhanced under monochromatic light (R or B) and elevated temperature. Total phenolic, total flavonoid, and glucoraphanin contents were generally higher in cotyledon as compared to hypocotyl. Hypocotyl anthocyanin, total phenolic, total flavonoid, and ascorbic acid contents were generally enhanced by R+B, and were decreased by R. Cotyledon content in these metabolites was generally stimulated by B, and reduced under R or R+UVA. Temperature affected metabolite content depending on the metabolite, organ, and light quality. Lower temperatures, R (23 °C) or R+UVA (15, 19, and 23 °C) were associated with decreased postharvest Fv/Fm. In conclusion, low cultivation temperature (<23 °C), as well as R or R+UVA ought to be avoided. Instead, B and R+B are suitable, with B being preferable, owing to better external quality and enhanced metabolite content in cotyledon which generally holds higher content than hypocotyl.

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“…It contains a considerable amount of soluble sugars, ascorbic acid, and various phenolics ( Sun et al, 2018 ). As a member of the Brassica family, it is also a rich source of glucosinolates, which have anti-carcinogenic activity ( Wang et al, 2021 ). The heads of baby mustard, including the lateral buds and swollen stem, are often harvested and can be conveniently transported and stored.…”

Section: Introductionmentioning

confidence: 99%

Sucrose treatment delays senescence and maintains the postharvest quality of baby mustard (Brassica juncea var. gemmifera)

Zhang

et al. 2022

Food Chemistry: X

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Effects of LED illumination spectra on glucosinolate and sulforaphane accumulation in broccoli seedlings

Cited by 34 publications

References 33 publications

Light irradiation maintains the sensory quality, health‐promoting phytochemicals, and antioxidant capacity of post‐harvest baby mustard

Light irradiation maintains the sensory quality, health‐promoting phytochemicals, and antioxidant capacity of post‐harvest baby mustard

Contrary to Red, Blue Monochromatic Light Improves the Bioactive Compound Content in Broccoli Sprouts

Sucrose treatment delays senescence and maintains the postharvest quality of baby mustard (Brassica juncea var. gemmifera)

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