Watercress and Chinese Cabbage in a Hydroponic System Using Groundwater

Lira, Raquele Mendes de; Silva, Ênio Farias De França E; Silva, Alexsandro Oliveira da; Medeiros, Paulo José de; Silva, Gerônimo Ferreira da; Soares, Hammady Ramalho e

doi:10.1590/1983-21252019v32n420rc

Cited by 7 publications

(5 citation statements)

References 22 publications

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“…It has a short cultivation time. The cultivation takes from 4 to 8 weeks from transplanted seedling to harvest (Lira et al 2018;De Lira et al 2019). The European Food Safety Authority (EFSA) has classified N. officinale as a safe vegetable under the group "Leaf vegetables, herbs and edible flowers" (EFSA).…”

Section: Introductionmentioning

confidence: 99%

Impacts of elicitors on metabolite production and on antioxidant potential and tyrosinase inhibition in watercress microshoot cultures

Klimek-Szczykutowicz

Dziurka

Blažević

et al. 2022

Appl Microbiol Biotechnol

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The study has proved the stimulating effects of different strategies of treatments with elicitors on the production of glucosinolates (GSLs), flavonoids, polyphenols, saccharides, and photosynthetic pigments in watercress (Nasturtium officinale) microshoot cultures. The study also assessed antioxidant and anti-melanin activities. The following elicitors were tested: ethephon (ETH), methyl jasmonate (MeJA), sodium salicylate (NaSA), and yeast extract (YeE) and were added on day 10 of the growth period. Cultures not treated with the elicitor were used as control. The total GSL content estimations and UHPLC-DAD-MS/MS analyses showed that elicitation influenced the qualitative and quantitative profiles of GSLs. MeJA stimulated the production of gluconasturtiin (68.34 mg/100 g dried weight (DW)) and glucobrassicin (65.95 mg/100 g DW). The elicitation also increased flavonoid accumulation (max. 1131.33 mg/100 g DW, for 100 μM NaSA, collection after 24 h). The elicitors did not boost the total polyphenol content. NaSA at 100 μM increased the production of total chlorophyll a and b (5.7 times after 24 h of treatment), and 50 μM NaSA caused a 6.5 times higher production of carotenoids after 8 days of treatment. The antioxidant potential (assessed with the CUPRAC FRAP and DPPH assays) increased most after 24 h of treatment with 100 μM MeJA. The assessment of anti-melanin activities showed that the microshoot extracts were able to cause inhibition of tyrosinase (max. 27.84% for 1250 µg/mL). Key points • Elicitation stimulated of the metabolite production in N. officinale microshoots. • High production of pro-health glucosinolates and polyphenols was obtained. • N. officinale microshoots have got tyrosinase inhibition potential. • The antioxidant potential of N. officinale microshoots was evaluated. Graphical abstract

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Section: Introductionmentioning

confidence: 99%

Impacts of elicitors on metabolite production and on antioxidant potential and tyrosinase inhibition in watercress microshoot cultures

Klimek-Szczykutowicz

Dziurka

Blažević

et al. 2022

Appl Microbiol Biotechnol

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“…Birnadi and Hendrian [20] reported that Brassica oleracea grows best in medium with EC values of 3500 µS/cm (EC ranged from 2500-3500 uS/cm. Mendes De Lira et al [21] also stated that Brassica pekinensis showed a decrease in leaf area up to 48.42% starting at the EC value of 1670 µS/cm while the number of leaves decreased about 9.92% starting at the EC value 3300 µS/cm. On contrary, the higher EC values of the treatments showed higher chlorophyll content than the control.…”

Section: Discussionmentioning

confidence: 96%

Supplemented desalinated seawater using sulfuric acid activated zeolit as hydroponic medium for mustard (Brassica juncea L.)

Iriany

Hasanah

Widyanto

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Sufficient agricultural water for irrigation is an important factor in food production, yet available fresh water only occupies 1% of the water on the earth. Seawater, through desalination, becomes rational solution to provide agricultural water due to abundant quantities and beneficial nutrients for crops. Hydroponic using desalinated seawater as medium is an approach to accomplish food security, especially in the arid and coastal areas. This study aimed to examine the growth of mustard (Brassica juncea L.) on a blend of fresh water and desalinated seawater using sulfuric acid activated zeolite as hydroponic medium. The experiment consisted of one control (100% fresh water+AB mix) and treatments namely a blend of 70% fresh water and 30% desalinated seawater using sulfuric acid activated zeolite with various sulfuric acid concentrations i.e 0.5, 1, 1.5, 2, 2.5, 3, and 3.5 N. The growth of mustard in blend of 70% fresh water and 30% desalinated seawater was lower than fresh water. A blend of 70% fresh water and 30% desalinated seawater using 1.5 N sulfuric acid activated zeolite showed no significant different mustard growth compared with fresh water medium and the fresh weight reduction was about 24%. Insignificant different growth between optimum treatment and control indicated a simple desalination method in this study can be utilized to desalinating seawater for hydroponic medium purpose. This finding emphasized that the simple seawater desalination method in this study for hydroponic medium was promising and interesting to be further developed for sustainable water management and agriculture.

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“…N. officinale belongs to leafy vegetables and is grown mostly in hydroponic farms. This species is characterized by a rapid increase in biomass; after 4–8 weeks the plants are ready for harvesting [ 2 , 3 ]. The European Food Safety Authority (EFSA) has classified N. officinale as a safe vegetable under the group “Leaf vegetables, herbs and edible flowers” [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Precursor-Boosted Production of Metabolites in Nasturtium officinale Microshoots Grown in Plantform Bioreactors, and Antioxidant and Antimicrobial Activities of Biomass Extracts

et al. 2021

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The study demonstrated the effects of precursor feeding on the production of glucosinolates (GSLs), flavonoids, polyphenols, saccharides, and photosynthetic pigments in Nasturtium officinale microshoot cultures grown in Plantform bioreactors. It also evaluated the antioxidant and antimicrobial activities of extracts. L-phenylalanine (Phe) and L-tryptophan (Trp) as precursors were tested at 0.05, 0.1, 0.5, 1.0, and 3.0 mM. They were added at the beginning (day 0) or on day 10 of the culture. Microshoots were harvested after 20 days. Microshoots treated with 3.0 mM Phe (day 0) had the highest total GSL content (269.20 mg/100 g DW). The qualitative and quantitative profiles of the GSLs (UHPLC-DAD-MS/MS) were influenced by precursor feeding. Phe at 3.0 mM stimulated the best production of 4-methoxyglucobrassicin (149.99 mg/100 g DW) and gluconasturtiin (36.17 mg/100 g DW). Total flavonoids increased to a maximum of 1364.38 mg/100 g DW with 3.0 mM Phe (day 0), and polyphenols to a maximum of 1062.76 mg/100 g DW with 3.0 mM Trp (day 0). The precursors also increased the amounts of p-coumaric and ferulic acids, and rutoside, and generally increased the production of active photosynthetic pigments. Antioxidant potential increased the most with 0.1 mM Phe (day 0) (CUPRAC, FRAP), and with 0.5 mM Trp (day 10) (DPPH). The extracts of microshoots treated with 3.0 mM Phe (day 0) showed the most promising bacteriostatic activity against microaerobic Gram-positive acne strains (MIC 250–500 µg/mL, 20–21 mm inhibition zones). No extract was cytotoxic to normal human fibroblasts over the tested concentration range (up to 250 μg/mL).

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Watercress and Chinese Cabbage in a Hydroponic System Using Groundwater

Cited by 7 publications

References 22 publications

Impacts of elicitors on metabolite production and on antioxidant potential and tyrosinase inhibition in watercress microshoot cultures

Impacts of elicitors on metabolite production and on antioxidant potential and tyrosinase inhibition in watercress microshoot cultures

Supplemented desalinated seawater using sulfuric acid activated zeolit as hydroponic medium for mustard (Brassica juncea L.)

Precursor-Boosted Production of Metabolites in Nasturtium officinale Microshoots Grown in Plantform Bioreactors, and Antioxidant and Antimicrobial Activities of Biomass Extracts

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