Fast determination of bioactive compounds from Lycopersicon esculentum Mill. leaves

Taveira, Marcos; Ferreres, Federico; Gil‐Izquierdo, Ángel; Oliveira, Luísa; Valentão, Patrı́cia; Andrade, Paula B.

doi:10.1016/j.foodchem.2012.05.016

Cited by 36 publications

(50 citation statements)

References 27 publications

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“…Most studies have evaluated phenolic constituents of fruit byproducts (Elbadrawy and Sello 2011;Taveira et al 2012). Few studies have focused on whole tomato plant, although the properties of tomato fruits have been extensively studied (Silva-Beltrán et al 2015).…”

Section: Discussionmentioning

confidence: 99%

“…Few studies have focused on whole tomato plant, although the properties of tomato fruits have been extensively studied (Silva-Beltrán et al 2015). A recent investigation has revealed that tomato plant leaves have several active metabolites, including phenolic compounds and steroidic alkaloids (Taveira et al 2012). Sánchez-Rodríguez et al (2012) have reported that quercetin and kaempferol are major components in tomato leaves.…”

Section: Discussionmentioning

confidence: 99%

“…However, only a few research studies have focused on tomato leaves (Taveira et al 2012). Although this plant material is considered a by-product of tomato production, it contains several bioactive metabolites, including steroidic alkaloids (Friedman 2002) and phenolics such as hydroxycinnamic acids and flavonoids (Slimestad and Verheul 2009;Ferreres et al 2011).…”

Section: Introductionmentioning

confidence: 99%

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Chemical Constitutions and Antioxidant Activities of Tomato Leaf Extracts

Lee¹,

Lee²,

Ma³

et al. 2016

Plant Breed. Biotech.

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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. ABSTRACT The present study aimed to determine the contents of five flavonols and two glycoalkaloids as well as the antioxidant activities of leaf ethanol extracts of 50 tomato accessions. The antioxidant activity was assessed using different tests: 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS), 2,2-diphenyl-1-picryl hydrazyl (DPPH), nitric oxide (NO), and total polyphenol content (TPC). Flavonols and glycoalkaloids contents were determined using a high performance liquid chromatography-diode array detector system. Among five flavonols and two glycoalkaloids, naringenin and tomatine were detected in tomato leaves at high concentrations. Of the 50 tomato accessions, IT 229711, IT2365203, and IT 207224 were found to have the highest contents of quercetin, kaempferol, and tomatine, respectively. Leaf extract of IT189949 exhibited the highest relative antioxidant capacity index (RACI). Among the five flavonols, myricetin showed positive correlations with DPPH, ABTS, and NO, while isorhamnetin had positive correlation with DPPH. These results will expand the chemical constitution database and provide information on tomato leaves. They are valuable for the development of functional foods or feed-additives.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Chemical Constitutions and Antioxidant Activities of Tomato Leaf Extracts

Lee¹,

Lee²,

Ma³

et al. 2016

Plant Breed. Biotech.

View full text Add to dashboard Cite

show abstract

“…Many studies have estimated the phenolic constituents of fruit byproducts (Elbadrawy and Sello, 2011;Taveira et al, 2012). Few studies have focused on the whole tomato plant, although the properties of tomato fruits have been extensively studied (Silva-Beltran et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

Comparison of Antioxidant Activities in Tomato Leaves and Stems

Lee¹,

Lee²,

Lee³

et al. 2016

Korean Journal of Plant Resources

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-This study was conducted to investigate the antioxidant activity in the leaves and stems of 50 tomato accessions, in order to examine the possibility of using tomato by-products as a functional material. The extracts of the leaves (LE) and stems (SE) were analyzed for DPPH, ABTS, and total polyphenol content (TPC). Antioxidant activities and TPC differed significantly between the LE and SE of the 50 tomato accessions. TPC in LE and SE showed wide variation, ranging from 24.4 to 60.6 and 12.5 to 18.8 ㎎ GAE/g, respectively. The DPPH and ABTS antioxidant activities of LE ranged from 10.0 to 38.2% (scavenging effect) and 20.8 to 59.0 ㎎ ASC/g, respectively, while the DPPH and ABTS measurements of SE were 1.4 to 8.8% and 2.2 to 22.5 ㎎ ASC/g, respectively. As assessed by the relative antioxidant capacity index (RACI), IT033117 and IT203466 had the highest antioxidant activity in LE and SE, respectively. These results will expand the knowledge of antioxidant activity and provide information on tomato accessions valuable for the development of functional foods and food additives.

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“…Tomatoes are an excellent source of antioxidants, dietary fiber, minerals, and vitamins [1]- [3] and are one of the low-calorie vegetables; hold just 18 calories per 100 g. Total ORAC (Oxygen Radical Absorbance Capacity) or antioxidant power of tomato has been noted as high as 1341 µmol TE/100g [4]. In spite of being such an important commodity, production and quality of tomato does not meet the requirements, because low humidity and high temperature of Tabuk region jointly accelerate the rate of evaporation which leaves behind the accumulated salts.…”

Section: Introductionmentioning

confidence: 99%

Growth and Physiological Attributes of Tomato (<i>Lycopersicon esculentum</i> Mill.) Genotypes as Affected by NaCl Stress

Khan¹

2016

AJPS

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High level of salinity adversely affects growth, productivity as well as quality of vegetable crops by reducing photosynthetic capacity, enzyme activities, and by enhanced production of reactive oxygen species (ROS). These ROS cause peroxidation of membrane lipids leading to disintegration of cell membrane with the leakage of electrolytes. All these detrimental effects ultimately contribute to the crop with reduced yield and low nutritive value. The present investigation was carried out to test salt tolerance capacity of ten genotypes of tomato on the basis of growth, physiological and biochemical characteristics. The results show that all the ten tested genotypes of tomato responded differently to 200 mM NaCl stress. Regarding growth parameters, BL-1076 gave higher values, while Queen gave the lowest values for most of the parameters (plant height, number of leaves, leaf area, shoot and root fresh weight and dry weight). Regarding physiological and biochemical parameters, BL-1076 gave higher values for the activities of carbonic anhydrase and nitrate reductase, leaf chlorophyll content, relative water content, and activities of antioxidant enzymes (superoxide dismutase, peroxidase and catalase). However, genotype Queen gave the lowest values for these parameters. On contrary, the least membrane damage (TBARS content) was registered in BL-1076, while the highest in Queen. Overall assessment of results leads to the conclusion that the genotype BL-1076 was found salt tolerant while Queen salt sensitive. The ten genotypes may be arranged on the basis of their salt tolerance capacity in decreasing order as:

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Fast determination of bioactive compounds from Lycopersicon esculentum Mill. leaves

Cited by 36 publications

References 27 publications

Chemical Constitutions and Antioxidant Activities of Tomato Leaf Extracts

Chemical Constitutions and Antioxidant Activities of Tomato Leaf Extracts

Comparison of Antioxidant Activities in Tomato Leaves and Stems

Growth and Physiological Attributes of Tomato (<i>Lycopersicon esculentum</i> Mill.) Genotypes as Affected by NaCl Stress

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Fast determination of bioactive compounds from Lycopersicon esculentum Mill. leaves

Cited by 36 publications

References 27 publications

Chemical Constitutions and Antioxidant Activities of Tomato Leaf Extracts

Chemical Constitutions and Antioxidant Activities of Tomato Leaf Extracts

Comparison of Antioxidant Activities in Tomato Leaves and Stems

Growth and Physiological Attributes of Tomato (&lt;i&gt;Lycopersicon esculentum&lt;/i&gt; Mill.) Genotypes as Affected by NaCl Stress

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Product

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Growth and Physiological Attributes of Tomato (<i>Lycopersicon esculentum</i> Mill.) Genotypes as Affected by NaCl Stress