Major anthocyanins and antioxidant activity of Nasturtium flowers (Tropaeolum majus)

Garzón, G.A.; Wrolstad, Ronald E.

doi:10.1016/j.foodchem.2008.09.013

Cited by 95 publications

(72 citation statements)

References 25 publications

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“…The HPLC phenolic profiles recorded at 280 nm were identified as anthocyanin derivatives (Figure 2A) (Garzón & Wrolstad, 2009). Similarly, the UV-Vis spectrum of compound 11 also complies with the expected shape for pelargonidin, which is characterized by a prominent shoulder in the 410-450 nm range ( Figure 2B).…”

Section: Resultsmentioning

confidence: 56%

Irradiation as a novel approach to improve quality of Tropaeolum majus L. flowers: Benefits in phenolic profiles and antioxidant activity

Koike

Barreira

Barros

et al. 2015

Innovative Food Science & Emerging Technologies

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Edible flowers are increasingly used in food preparations, requiring new approaches to improve their conservation and safety. Food irradiation, particularly electron beam and gamma irradiation, is legally recognized to extend shelf life, improve hygienic quality and disinfest foods. Garden nasturtium (Tropaeolum majus L.) flowers are widely used in food preparations, being also known for their antioxidant properties and high content of phenolics. The purpose of this study was to evaluate the dose-response effects of gamma and electron beam irradiation (unirradiated and doses of 0.5, 0.8 and 1 kGy) on its antioxidant activity and phenolic compounds. Kaempferol-O-hexoside-O-hexoside was the most abundant compound, while pelargonidin-3-O-sophoroside was the major anthocyanin. The flowers showed high antioxidant activity, in particular as reducing agents. The interaction among the effects of irradiation dose and irradiation technology was a significant source of variation for all parameters. In general, irradiated samples gave higher antioxidant activity, maybe due to their higher amounts of phenolic compounds. Anthocyanins were the sole compounds negatively affected by irradiation.These differences were reflected in the linear discriminant analysis, which allowed the perfect separation of the applied doses, as also both irradiation technologies. Accordingly, irradiation represents a feasible technology to preserve the quality of edible flowers.

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Section: Resultsmentioning

confidence: 56%

Irradiation as a novel approach to improve quality of Tropaeolum majus L. flowers: Benefits in phenolic profiles and antioxidant activity

Koike

Barreira

Barros

et al. 2015

Innovative Food Science & Emerging Technologies

View full text Add to dashboard Cite

show abstract

“…Its leaves are used in popular medicine to treat several diseases, including cardiovascular disorders, urinary tract infections, asthma and constipation (Lorenzi and Matos, 2002;Ferreira et al, 2004;Ferro, 2006). The fresh leaves and flowers of T. majus are also used in feeding, especially in salads, and were pointed by a study as excellent source of the carotenoid lutein (Niizu and Rodriguez-Amaya, 2005;Garzó n and Wrolstad, 2009;Mlcek and Rop, 2011).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of subchronic toxicity of the hydroethanolic extract of Tropaeolum majus in Wistar rats

Gomes

Lourenço

Liuti

et al. 2012

Journal of Ethnopharmacology

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“…Although the use of a HCl acidified extraction solvent enhances the anthocyanin yield, it may result in pigment degradation, as noted by a few researchers during the evaporation process to concentrate crude extracts for analytical needs (Froehlicher et al, 2009;Garzón and Wrolstad, 2009;González-Paramás et al, 2006). Hence, in reducing pigment degradation, weaker organic acids, namely acetic acid (Kirakosyan et al, 2009;Özgen et al, 2009), formic acid (Sun et al, 2009), and trifluoroacetic acid (Baublis et al,1994) have been tried.…”

Section: Preparation Of Mexican Lime Juice and Hcl Acidified Aqueous mentioning

confidence: 99%

“…Numerous studies have revealed that anthocyanins extracted from various plants, such as the Nasturtium flower (Garzón and Wrolstad, 2009), Crataegus monogyna flower (Froehlicher et al, 2009), tart cherry products (Kirakosyan et al, 2009), black and red mulberry fruits (Özgen et al, 2009), purple corn (Yang and Zhai, 2009), and even Garcinia indica Choisy (Nayak and Rastogi, 2011), possess antioxidant properties. In addition, anthocyanins have also been reviewed for their anti-cancer properties (Wang and Stoner, 2008).…”

Section: Introductionmentioning

confidence: 99%

Anthocyanin Recovery from Mangosteen (Garcinia mangostana L.) Hull using Lime Juice Acidified Aqueous Methanol Solvent Extraction

Cheok

Chin

Yusof

et al. 2013

FSTR

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The recovery of anthocyanin from mangosteen (Garcinia mangostana L.) hull was investigated using an aqueous methanol solvent acidified by Mexican lime (Citrus aurantifolia Swingle) juice in comparison with the conventional HCl acidified methanol solvent. The addition of 0.20 mL lime juice/mL to an aqueous methanol extraction solvent gave a maximum total monomeric anthocyanin (TMA) recovery of 4.742 ± 0.590 mg cy-3-glu/g hull powder compared to 2.950 ± 0.265 when using an HCl acidified extraction solvent at 0.20%. This acidified aqueous methanol extraction solvent using lime juice produced an increase of 60.75% anthocyanin which suggests that this natural lime juice can be a good acidifying agent. The quantity of lime juice or HCl added to the extraction solvent was found to be a more important factor than its pH value in influencing TMA yield. A lower particle size of hull powder of 250 μm to 500 μm was also found to give the highest recovery of anthocyanin (p < 0.05).Keywords: Garcinia mangostana L., extraction, Citrus aurantifolia Swingle, particle size, total monomeric anthocyanin, hydrogen bond formation *To whom correspondence should be addressed. E-mail: chinnl@eng.upm.edu.my IntroductionAnthocyanins in plants have important roles in attracting insects for pollination and seed dispersal, for which it is crucial to maintain an eco-biology interaction and balance (Kong et al., 2003). Numerous studies have revealed that anthocyanins extracted from various plants, such as the Nasturtium flower (Garzón and Wrolstad, 2009), Crataegus monogyna flower (Froehlicher et al., 2009), tart cherry products (Kirakosyan et al., 2009), black and red mulberry fruits (Özgen et al., 2009), purple corn (Yang andZhai, 2009), and even Garcinia indica Choisy (Nayak and Rastogi, 2011), possess antioxidant properties. In addition, anthocyanins have also been reviewed for their anti-cancer properties (Wang and Stoner, 2008). More commonly, anthocyanins are widely used as a source of natural colourants in the food processing industry and for this reason, and their contributive function towards health, studies of enhancing the anthocyanin yield from plant materials have been explored.Various methods have been used to obtain anthocyanins from plant materials. These include extraction methods of fractioned high speed pressure from elderberry pomace (Saebra et al., 2010), subcritical solvent from dried grape pomace (Monrad et al., 2010), and ultrasound-assisted from Garcinia indica Choisy (Nayak and Rastogi, 2013). Despite the different methods, solvent extraction of anthocyanins from plant materials is the most widely employed method and has been well documented in two standard protocols. They are the acetone extraction and chloroform partition, and the acidified methanol extraction protocol (Giusti and Wrolstad, 2005). The latter protocol is more commonly used by researchers probably due to it being simple, fast and effective. It involves maceration or soaking of plant material in methanol containing a small concentration of mineral ac...

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Major anthocyanins and antioxidant activity of Nasturtium flowers (Tropaeolum majus)

Cited by 95 publications

References 25 publications

Irradiation as a novel approach to improve quality of Tropaeolum majus L. flowers: Benefits in phenolic profiles and antioxidant activity

Irradiation as a novel approach to improve quality of Tropaeolum majus L. flowers: Benefits in phenolic profiles and antioxidant activity

Evaluation of subchronic toxicity of the hydroethanolic extract of Tropaeolum majus in Wistar rats

Anthocyanin Recovery from Mangosteen (Garcinia mangostana L.) Hull using Lime Juice Acidified Aqueous Methanol Solvent Extraction

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