Enhancement of phenolics, flavonoids and glucosinolates of Broccoli (Brassica olaracea, var. Italica) as antioxidants in response to organic and bio-organic fertilizers

Naguib, Abd El-Moniem M.; El-Baz, Farouk; Salama, Zeinab A.; Hanaa, H.; Ali, Heba A.; Gaafar, Alaa A.

doi:10.1016/j.jssas.2012.03.001

Cited by 71 publications

(73 citation statements)

References 36 publications

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“…Effect of different fertilization rates on the sugar beet net photosynthesis productivity (the average data of [2011][2012] found in investigations with broccoli (Naguib et al, 2012). In our experiment, application of bio-organic nano fertilizer at different doses increased the sucrose content in sugar beet roots significantly by 0.81-1.14 percentage units (Table 5).…”

Section: Figuresupporting

confidence: 61%

The bio-organic nano fertilizer improves sugar beet photosynthesis process and productivity

Jakienė

Spruogis

Romaneckas

et al. 2015

Zemdirbyste-Agriculture

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Applications of biological agents intensify the growth of crops, so they more quickly form a maximum leaf area, optimize photosynthesis, increase plant productivity and quality. Chemical producers offer a new generation of bio-organic fertilizers based on nano technologies. Such fertilizers have not been well investigated yet; therefore, the aim of this study was to ascertain the influence of the fertilization rates by bio-organic nano fertilizer, made from cattle manure on the effectiveness of sugar beet crop photosynthesis and productivity parameters. The investigations were carried out in 2011-2012 at Aleksandras Stulginskis University's Research Station, Kaunas district, Lithuania (54º52′ N, 23º49′ E) on a silty loam Luvisol (Calcari-Epihypogleyic Luvisol, LVg-p-w-cc). Sugar beet plants were sprayed with the fertilizer at doses of 0.5 or 1.0 L ha -1 at the BBCH 18 and/or BBCH 31 stages. Single application of the bio-organic fertilizer at single 1 L ha -1 dose was more effective than at single 0.5 L ha -1 or double 0.5 + 0.5 L ha -1 doses. At the beginning of intensive sugar beet development (BBCH 37-38), single 1 L hadose increased the number of leaves by 19.6%, leaf area by 13.4%, root diameter by 11.1%, canopy dry biomass by 29.1%, root biomass by 42.6%, net photosynthetic productivity by 15.8%, root yield by 12.6%, sucrose content by 1.03 percentage points and yield of white sugar by 19.2% in comparison with the untreated beets. Double 1 + 1 L ha -1 dose of fertilizer was slightly more effective but economically less suitable than single (1 L ha -1 ). In general, the application of bio-organic fertilizer revealed a great potential for optimization of sugar beet development, productivity and quality parameters.

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Section: Figuresupporting

confidence: 61%

The bio-organic nano fertilizer improves sugar beet photosynthesis process and productivity

Jakienė

Spruogis

Romaneckas

et al. 2015

Zemdirbyste-Agriculture

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“…This probably due to the presence of polyphenolics pigments and the higher concentration in antioxidants, vitamins and anthocyanins than in 'Ironman'. In a similar study, it was concluded that biofertilisers (50% Azotobacter chrococcum and 50% Bacillus megaterium), increased the amount of total phenolics and flavonoids compared to treatments receiving chemical fertilisers (Naguib et al 2012). Prior and Cao (2000) indicated that factors such as maturity, cultivars but also other environmental factors like sunlight exposure may influence the phytochemical concentration.…”

Section: Total Flavonoids and Isothiocyanate Contentmentioning

confidence: 89%

Effect on yield, total phenolic, total flavonoid and total isothiocyanate content of two broccoli cultivars (Brassica oleraceae var italica) following the application of a commercial brown seaweed extract (Ascophyllum nodosum)

Lola-Luz

Hennequart²,

Gaffney³

2014

AFSci

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28Effect on yield, total phenolic, total flavonoid and total isothiocyanate content of two broccoli cultivars (Brassica oleraceae var italica) following the application of a commercial brown seaweed extract (Ascophyllum nodosum)Theodora Lola-Luz Field experiments were conducted to evaluate the effect of an unfortified extract, of Ascophyllum nodosum on yield and nutritional quality of two broccoli cultivars ('Ironman' and 'Red Admiral'). Total phenolic, total flavonoid, and total isothiocyanates content were higher in all seaweed treatments compared to the untreated control. In 'Ironman' there was a 2.2 fold increase in total phenolic, 1.5 fold in total flavonoid and 2.6 fold in total isothiocyanates content, in the higher application rate compared to the control. Similarly in 'Red Admiral', there was a 2.3 fold increase in total phenolic, 2.6 fold in total flavonoid and, 2.2 fold in total isothiocyanates content. There was a consistent effect on the increase of total phenolic, total flavonoid and total isothiocyanates content, while there was no yield increase recorded at the lower seaweed application rate. Results suggest that application of seaweed extracts can significantly increase the amount of phytochemicals and improve the nutritional quality of broccoli.

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“…Several studies have been conducted on phytochemicals and their changes due to plant parts, growing seasons, years of cultivation, and broccoli genotypes. The phytochemicals studied include glucosinolates, vitamins, phenols, and falvonoids (Balouchi et al, 2011;Jeffery et al, 2003;Koh et al, 2009;Naguib et al, 2012;Nath et al, 2011;Singh et al, 2007;Vallejo et al, 2003). However, information regarding sugars composition is limited to the floret tissue only .…”

Section: Introductionmentioning

confidence: 99%

Seasonal Variation in Contents of Sugars in Different Parts of Broccoli

Bhandari¹,

Kwak²

2015

HST

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Seasonal variation in the contents of sugars (fructose, glucose, and sucrose) in the floret, leaf, and stem of broccoli were studied in ten commercial broccoli cultivars. Plants were grown in the spring and fall seasons in 2011. In both seasons, glucose was the major constituent, comprising about 50% of the total sugar content in the floret and leaf tissue of most cultivars, whereas the broccoli stem showed an unusual pattern of accumulation. Sucrose exhibited greater cultivar dependency as well as seasonal variation compared to fructose and glucose in floret and leaf tissues. The floret tissue had a higher total content of sugar in the spring compared to the fall due to an increase in glucose and fructose. However, most of the leaf and stem tissues of broccoli had a higher total sugar content in the fall compared to the spring. Furthermore, stem and leaf tissues possessed a relatively higher total sugar content compared to floret tissue in both seasons. 'Grandeur' broccoli contained a significantly greater amount of total sugar in both floret and leaf tissues in both seasons, whereas 'YuDoRi No.1' broccoli exhibited the highest total content of sugar in stem tissue. At overall, the results showed significant influences of genotype, plant part and growing season on sugar content in broccoli.

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Enhancement of phenolics, flavonoids and glucosinolates of Broccoli (Brassica olaracea, var. Italica) as antioxidants in response to organic and bio-organic fertilizers

Cited by 71 publications

References 36 publications

The bio-organic nano fertilizer improves sugar beet photosynthesis process and productivity

The bio-organic nano fertilizer improves sugar beet photosynthesis process and productivity

Effect on yield, total phenolic, total flavonoid and total isothiocyanate content of two broccoli cultivars (Brassica oleraceae var italica) following the application of a commercial brown seaweed extract (Ascophyllum nodosum)

Seasonal Variation in Contents of Sugars in Different Parts of Broccoli

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