Foliar ascorbic acid in some angiosperms

Jones, Edward; Hughes, R. E.

doi:10.1016/0031-9422(83)80147-2

Cited by 126 publications

(45 citation statements)

References 6 publications

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“…Ascorbic acid was quantitatively determined according to 2,6-dichlorophenol indophenol-dye method as described by Jones and Hughes (1983) with slight modifications.…”

Section: Methodsmentioning

confidence: 99%

Effect of shading by coloured nets on yield and fruit quality of sweet pepper

Ilić

Milenković

Šunić

et al. 2017

Zemdirbyste-Agriculture

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The concept of photo-selective netting was studied in a sweet pepper (Capsicum annuum L.) cultivar 'Cameleon' from summer cultivation in south Serbia (under high solar radiation 910 W m -2 , with a photosynthetic photon flux density of 1661 µmol m -2 s -1 ), under four different coloured shade-nets (pearl, red, blue and black) with 40% relative shading. The aim of the study was to determine how different environmental control technologies, coloured shade-nets as net house or plastic-house integrated with coloured shade-nets, could influence plant parameters, production and quality traits in pepper fruits. Shade-grown leaves generally have higher total chlorophyll and carotenoid content than control leaves. Pericarp fruit thickness was significantly higher in peppers grown under red net house (4637.10 µm) and black net house (4609.32 µm) compared to the open field -control (3116.19 µm). The highest concentration of total soluble solids (TSS) was detected in pepper fruits grown under the open field conditions (8.03%). Pepper fruits grown in plastic tunnels had significantly lower TSS content (6.58%). Total acid (TA) content was 0.19 in the control and 0.25 in pepper fruits grown under red nets. The highest concentration of vitamin C was detected in peppers grown in plastic tunnels integrated with red coloured nets (175.77 mg 100 g -1 ). These results show that red and pearl photo-selective nets create optimal growing conditions and increase the total fruit yield as well as the number of fruits with fewer physiological disorders and with thicker pericarp. Photoselective pearl and red nets can be recommended for sweet pepper 'Cameleon' with respect to quality and bioactive compound and can furthermore be implemented in protected cultivation practices.

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“…Ascorbic acid was quantitatively determined according to 2,6-dichlorophenol indophenol-dye method as described by Jones and Hughes (1983) with slight modifications.…”

Section: Methodsmentioning

confidence: 99%

Effect of shading by coloured nets on yield and fruit quality of sweet pepper

Ilić

Milenković

Šunić

et al. 2017

Zemdirbyste-Agriculture

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show abstract

“…The results were expressed as grams per 100 g of fresh weight. Ascorbic acid was quantitatively determined by using 2, 6-dichlorophenolindophenol dye method as described by Jones & Hughes (1983). The results were expressed as grams per 100 g of fresh weight.…”

Section: Analysis Of Sugars and Organic Acidsmentioning

confidence: 99%

Effect of 1-MCP treatment on nutritive and functional properties of loquat fruit during cold storage

Cao

Zheng

Yang

2011

New Zealand Journal of Crop and Horticultural Science

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Freshly harvested loquat fruit were pretreated with 50 nl/L 1-methylcyclopropene (1-MCP) for 24 h at 208C and then stored at 18C for 35 days to investigate the effect of 1-MCP on fruit nutritive and functional properties. The results show that 1-MCP-treated fruit exhibit a lower incidence of decay and higher levels of total soluble solids, total titratable acidity, fructose, glucose, sucrose, malic and lactic acids, total phenolics and total flavonoids than control fruit during storage. The 1-MCP treatment also maintains higher antioxidant activity as measured by the scavenging capacity against 1,1-diphenyl-2-picrylhydrazyl and superoxide radicals, and by the reducing power test compared with the control. These results suggest that 1-MCP treatment can improve the nutritive and functional properties of harvested loquat fruit, thus providing a high content in health-beneficial compounds to consumers.

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“…that appears to be one of the highest reported (Milton and Jenness, 1987). Wild Panamanian leaves averaged a higher ascorbate content than cultivated fruit juices and wild leaves, both tropical and temperate, are excellent sources of ascorbate, better, for example, than cultivated leafy vegetables (Jones and Hughes, 1983;Booth et al, 1992).…”

Section: Vitaminsmentioning

confidence: 95%

“…One vitamin which has been fairly extensively examined in wild foods is vitamin C or ascorbate. Both leaves and fruits from wild plant species, including tree species, have been examined for ascorbate content in both tropical and temperate locales (Jones and Hughes, 1983;Dash and Jenness, 1985;Keshinro, 1985). This interest likely stems from the fact that vitamin C is of particular importance to humans.…”

Section: Vitaminsmentioning

confidence: 99%

Micronutrient intakes of wild primates: are humans different?

Milton

2003

Comparative Biochemistry and Physiology Part A: Molecular &

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Foliar ascorbic acid in some angiosperms

Cited by 126 publications

References 6 publications

Effect of shading by coloured nets on yield and fruit quality of sweet pepper

Effect of shading by coloured nets on yield and fruit quality of sweet pepper

Effect of 1-MCP treatment on nutritive and functional properties of loquat fruit during cold storage

Micronutrient intakes of wild primates: are humans different?

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