Glucoraphanin and flavonoid levels remain stable during simulated transport and marketing of broccoli (Brassica oleracea var. italica) heads

Winkler, Sonja; Faragher, John D.; Franz, Peter; Imsic, M.; Jones, Renee

doi:10.1016/j.postharvbio.2006.08.001

Cited by 50 publications

(33 citation statements)

References 27 publications

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“…An increased level of kaempferol was found only in the second year of the study after the AA treatment. The concentrations of both of these flavonols increased with the duration of storage, which is consistent with the results of Winkler et al (2007). Those authors had observed that after a week of storing broccoli at 1°C, the quercetin content increased by 45% and that of kaempferol by approximately 11%.…”

Section: Resultssupporting

confidence: 88%

Influence of biostimulants on phenolic content in broccoli heads directly after harvest and after storage

Kałużewicz

Gąsecka

Spiżewski

2017

Folia Horticulturae

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Biostimulants are commonly used in horticulture, primarily to increase yield quantity and quality, as well as plant tolerance to stress. The purpose of the study was to determine the effect of amino acid-based biostimulants and amino acids in combination with Ascophyllum nodosum filtrate, applied during the growing season on the phenolic content in broccoli heads both after harvest and after long storage in a cold store. The seedlings were planted in mid-July, and heads were harvested from September to October in each year of the study. Ascophyllum nodosum filtrate at a concentration of 1% was used during seedling production. The plants were watered with biostimulants twice, in the fourth and fifth week after sowing. They were also sprayed with amino acid-based biostimulants (1.5 dm 3 ha -1) three times, i.e. after the second, fourth and sixth week after planting. The biostimulants were not used in the control treatment. After harvest, the heads were stored for three weeks in a cold store at 1-2°C and 95% RH. Chemical analyses of total phenolic, caffeic, ferulic and sinapic acids, and of quercetin and kaempferol were carried out on samples of fresh broccoli and after the first, second and third week of storage. It was found that the application of biostimulants resulted in a significant increase in the total phenolic content, sinapic acid content, as well as quercetin content. Both in the control treatment and in the plants treated with the biostimulants, the concentration of all the tested phenolic compounds increased with the duration of storage.Ke y wor d s: amino acids, Ascophyllum nodosum filtrate, Brassica oleracea var. italica, kaempferol, phenolic acids, quercetin

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Section: Resultssupporting

confidence: 88%

Influence of biostimulants on phenolic content in broccoli heads directly after harvest and after storage

Kałużewicz

Gąsecka

Spiżewski

2017

Folia Horticulturae

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“…Note: see Table 1 According to the literature data, studies by other authors on storing broccoli in normal atmosphere involved storage periods from a few to 28 days. As reported by Winkler et al (2007), the content of glucoraphaninthe glycoside form of sulforaphanein fresh broccoli heads was 8.7 µmol·g -1 DW, whereas after 2, 7, 14 and 28 days of storage in film packaging with perforations it ranged from 6.6 to 8.5 µmol·g -1 DW whether the broccoli heads were stored at +1°C or +4°C. The authors found no significant differences in glucoraphanin content between the two storage temperatures or the storage periods even though the quality of the heads was significantly lower at the higher temperature and after longer periods of storage because of yellowing and the loss of turgor.…”

Section: Resultssupporting

confidence: 67%

The Effect of Storage in Controlled Atmosphere on the Quality and Health-Promoting Components of Broccoli (Brassica Oleracea bar. Italica)

Badełek

Kosson

Adamicki

2012

Journal of Fruit and Ornamental Plant Research

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SummaryThe aim of the study was to determine the effect of storage conditions on the quality and health-promoting components of broccoli. Broccoli heads cv. Marathon F 1 were stored at 0 o C for 100 days in controlled atmospheres containing: 1) 15% CO 2 -3% O 2 , 2) 10% CO 2 -3% O 2 , 3) 8% CO 2 -1% O 2 , 4) 5% CO 2 -3% O 2 . In the control treatment, broccoli heads were stored in normal atmosphere in crates lined with PE film. Before and after storage, chemical analyses were performed for the content of ascorbic acid, total sugars and glucosinolates -sulforaphane and indole-3-carbinol. Additionally, after storage the quality of broccoli heads was assessed visually on a 1-10 point scale, and the percentage of marketable heads was determined. The total content of sulforaphane and indole-3-carbinol in fresh broccoli was lower in comparison with stored broccoli. The sulforaphane content in fresh broccoli was about twice as high as that of indole-3-carbinol. Storage in an atmosphere consisting of 5% CO 2 -3% O 2 was more favourable in comparison with the other gas concentrations in terms of glucosinolate content. A decrease in the content of ascorbic acid and total sugars during storage was noted in all the treatments. The highest loss of these components occurred in broccoli stored in an atmosphere consisting of 15% CO 2 and 3% O 2 . Broccoli heads stored in normal atmosphere completely lost their market quality due to decay, but the quality of broccoli kept in CA was satisfactory.

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“…Levels of total phenolics and antioxidant capacity was significantly lower in 8am harvested florets on day 3 of storage, but differences were not significant on other days [63]. Several studies [67,74,90,140,147,182] have examined the effect of post-harvest handling and storage conditions on glucosinolate and/or phenolic compounds in broccoli. Levels of glucoraphanin, quercetin and kaempferol in broccoli cv.…”

Section: Harvest and Post-harvest Management Of Broccolimentioning

confidence: 99%

“…Marathon were not significantly affected by postharvest storage treatments designed to simulate commercial storage and marketing. Florets were stored at 1-4 oC at 99% relative humidity (RH) for 2 to 28 days to simulate initial storage and transport conditions, and were then kept at 8 -20 o C and 70-99% RH in order to simulate marketing conditions [182]. Storage of both primary and secondary broccoli florets (cv.…”

Section: Harvest and Post-harvest Management Of Broccolimentioning

confidence: 99%

Handbook of Plant Food Phytochemicals

Tiwari¹,

Brunton²,

Brennan³

2013

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Glucoraphanin and flavonoid levels remain stable during simulated transport and marketing of broccoli (Brassica oleracea var. italica) heads

Cited by 50 publications

References 27 publications

Influence of biostimulants on phenolic content in broccoli heads directly after harvest and after storage

Influence of biostimulants on phenolic content in broccoli heads directly after harvest and after storage

The Effect of Storage in Controlled Atmosphere on the Quality and Health-Promoting Components of Broccoli (Brassica Oleracea bar. Italica)

Handbook of Plant Food Phytochemicals

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