Changes in carotenoid content of carrots during growth and post-harvest storage

Lee, C.Y.

doi:10.1016/0308-8146(86)90097-x

Cited by 45 publications

(39 citation statements)

References 7 publications

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“…For example in muskmelon the medium size fruits had the highest concentrations of mentioned phytonutrients (Lester & Eischen 1996, Lester & Crosby 2002. Similar response was observed in vitamins content in carrot (Lee 1986).…”

Section: Introductionsupporting

confidence: 82%

The Effect of Maturity Stage on Nutritional Value of Leek, Zucchini and Kohlrabi

Biesiada¹,

Kolota²,

Adamczewska-Sowińska³

2007

Journal of Fruit and Ornamental Plant Research

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The Effect of Maturity Stage on Nutritional Value of Leek, Zucchini and Kohlrabi Three field experiments were established in 1996-2003 in order to determine the effects of term of harvest and stage of maturity on biological value of leek, zucchini and kohlrabi. The results of experiments showed that delay the harvest date associated with considerable increment of crop yield caused the enhancement of dry matter, total and reducing sugars in leek and kohlrabi. In zucchini the fruits of smaller size contained higher amounts of dry matter and similar sugars like more developed. Advanced term of harvest appeared to be favourable for vitamin C, phosphorus and potassium content in vegetables. Changes in magnesium and calcium concentration under influence of the stage of maturity were highly dependent on plant species. Plants of kohlrabi and leeks harvested at later stage of maturity contained lower level of nitrates, but in zucchini there was observed the increment of this compound in fruits of a bigger size at harvest.

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Section: Introductionsupporting

confidence: 82%

The Effect of Maturity Stage on Nutritional Value of Leek, Zucchini and Kohlrabi

Biesiada¹,

Kolota²,

Adamczewska-Sowińska³

2007

Journal of Fruit and Ornamental Plant Research

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“…Sucrose is the predominant storage sugar at roots full maturity, which amount reaches 3.6% (Daie 1984). Growing or storage conditions affect the content of sugars in carrots (Lee 1986, Seljasen et al 2001, Gajewski & Dąbrowska 2007. Besides sugars, carotenoids are very important carrot compounds (Handelman 2001, Alasalvar et al 2005.…”

Section: Introductionmentioning

confidence: 99%

Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term

Gajewski

Węglarz

Середа³

et al. 2009

Journal of Fruit and Ornamental Plant Research

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SummaryIn 2007-2008 the effect of nitrogen fertilization and harvest term on quality of two carrot cultivars was investigated. The field experiment was carried out in Żelazna Experimental Station of Warsaw University of Life Sciences. Karotan F 1 and Trafford F 1 cultivars, commonly grown for juice industry, were the objects of the experiment. Carrot seeds were sown at the beginning of May. Nitrogen fertilization was applied in five rates, ranged from 0 to 120 kg·ha -1 and in two terms -before sowing and in the middle of growing season. Roots were harvested in three terms: mid-September, mid-October and the first decade of November. After harvest there were determined: nitrates (NO 3 ) content in carrot roots and juice, soluble solids, colour parameters of juice in CIE L*a*b* system. The dose and the term of nitrogen fertilization influenced nitrates content in carrots, and the highest NO 3 concentration was found in carrots fertilized with 120 kg·ha -1 of N before sowing. Karotan showed higher nitrates accumulation than Trafford. The content of nitrates in the roots was markedly higher than in carrot juice. Nitrates content in carrots decreased with delaying of harvest time, in opposite to soluble solids content. Soluble solids content and colour parameters of carrot juice were not affected by nitrogen fertilization, but the lowest L*, a* and b* values were observed at the last term of harvest.

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“…Nantes Duke Notabene 370 Sv was cultivated on the Kotkaniemi experimental farm in southern Finland during the growing seasons of 1985and 1986(Evers 1988. The field experiments were set up according to the method of completely randomized blocks, with four blocks and ten treatments (Table 1).…”

Section: Methodsmentioning

confidence: 99%

“…Thus the increase in carotene content could be explained not only by the concentrating effect mentioned by Fritz et al (1978), but also by loss of water through transpiration. In addition, Lee (1986) reports that biosynthesis of carotenes occurs in carrots during storage, and in his study the content of a-and P-carotene increases slowly for up to 100-125 days in storage and then decreases. The decrease in carotene content observed in the present study in 1986 may be the result of further biosynthesis or decomposition of the compound.…”

Section: Carotenementioning

confidence: 99%

Effects of different fertilization practices on the quality of stored carrot

Evers

1989

AFSci

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Abstract. The effects of different fertilization practices on quality constituents of stored carrots were studied. The field experiments were carried out in southern Finland, and the carrots were stored in refrigerated storage for six months in 1985 and four months in 1986. After storage period the marketable yield and weight loss were measured, carotene content was analyzed and a sensory evaluation for taste and texture was performed in both years. In 1986, also NOj-N, N, P, K, Ca, Mg, ash, glucose, fructose and sucrose were analysed.In 1985, after storage, NPK fertirrigations without basic fertilization showed a tendency to produce a lower marketable yield than single application and placement fertilization. In 1986, after storage, split application and NPK fertirrigations showed a tendency to produce a lower marketable yield than unirrigated single application. The supraoptimal N amount showed a tendency to have a higher carotene content than optimal N amount, and NPK fertirrigations lower N0 3 -N content than irrigated single application. The irrigated placement and broadcast treatments yielded high K contents. The unfertilized treatments yielded higher marketable yield, lower NOj-N, N and K contents than fertilized treatments as an average.

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Changes in carotenoid content of carrots during growth and post-harvest storage

Cited by 45 publications

References 7 publications

The Effect of Maturity Stage on Nutritional Value of Leek, Zucchini and Kohlrabi

The Effect of Maturity Stage on Nutritional Value of Leek, Zucchini and Kohlrabi

Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term

Effects of different fertilization practices on the quality of stored carrot

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