Antioxidant, Total Lycopene, Ascorbic Acid and Microbial Load Estimation in Powdered Tomato Varieties Sold in Dutsin-Ma Market

Adejo, Godwin O.; Agbali, Francis Akumabi; Otokpa, Orinya Sandra

doi:10.4236/oalib.1101768

Cited by 17 publications

(18 citation statements)

References 8 publications

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“…Lycopene was extracted from pepper fruit using a hexane:ethanol:acetone (2:1:1; v:v:v ) mixture following the method of Adejo et al [ 80 ] with modifications. Sample extract (10 mg) was dissolved in 1 mL of distilled water and vortexed in a water bath at 30 °C for 1 h. Then, 8.0 mL of the hexane, ethanol, and acetone mix was added, capped, and revortexed, followed by incubation in a dark cupboard for 60 min.…”

Section: Methodsmentioning

confidence: 99%

Bioactive Compounds and Antioxidant Capacity of Valencian Pepper Landraces

et al. 2021

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Sweet pepper is one of the most important economic fruits with nutritional attributes. In this sense, the nutraceutical value of consumed products is a major concern nowadays so the content of some bioactive compounds and antioxidants (phenols, ascorbic acid, lycopene, carotenoids, chlorophylls, and antioxidant activity) was monitored in 18 sweet pepper landraces at two maturity stages (green and red). All the traits except chlorophylls significantly increased in red fruits (between 1.5- and 2.3-fold for phenols, ascorbic acid, and 2-2-diphenyl-1-picrylhydrazyl (DPPH) inhibition activity, 4.8-fold for carotenoid and 27.4-fold for lycopene content), which suggests that ripening is key for obtaining desired fruit quality. Among landraces, P-44 in green fruits is highlighted for its content in carotenoids, chlorophylls, phenols, and ascorbic acid, and P-46 for its antioxidant capacity and lycopene content. Upon maturity, P-48, P-44, and P-41 presented higher levels of phenols and lycopene, and P-39 of phenols, carotenoid, and DPPH. This work reflects a wide variability in the 18 pepper landraces at bioactive compounds concentration and in relation to fruit ripeness. The importance of traditional landraces in terms of organoleptic properties is emphasized as they are the main source of agricultural biodiversity today and could be helpful for breeders to develop new functional pepper varieties.

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Section: Methodsmentioning

confidence: 99%

Bioactive Compounds and Antioxidant Capacity of Valencian Pepper Landraces

et al. 2021

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“…The lycopene in pepper fruit was extracted using a hexane:ethanol:acetone (2:1:1; v:v:v) (Sigma-Aldrich Co., St. Louis, MO, USA) mixture following the method of Adejo et al [ 42 ]. A powdered sample (0.001 g) was dissolved in 1 mL of distilled water and vortexed in a water bath at 30 °C for 1 h. Then 8.0 mL of hexane, ethanol, and acetone were added, capped, and vortexed again, followed by incubation in a dark cupboard for 60 min.…”

Section: Methodsmentioning

confidence: 99%

Effect of Grafting on the Production, Physico-Chemical Characteristics and Nutritional Quality of Fruit from Pepper Landraces

et al. 2020

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Grafting is a widely utilized agronomical technique to improve yield, disease resistance, and quality of fruit and vegetables. This work aims to assess the effect of grafting and fruit ripening on the production, physico-chemical characteristics, and nutritional quality of fruit from Spanish local pepper landraces. Landraces “Cuerno,” “Sueca,” and “Valencia” were used as scions, and “NIBER®” as the rootstock. Two ripening stages of the fruits were sampled: green and red. Grafting improved the yield and marketable quality and did not negatively influence the physico-chemical and nutritional characteristics of the fruit. It was noteworthy that the bioactive compound contents and antioxidant capacity were more related to maturity stage and genotype, and red fruit had a higher antioxidant capacity than green fruit. However, in all the scions, grafting significantly enhanced lycopene content in both red and green fruit. Another important effect of grafting was the volatile compound composition evidenced by discriminant analyses, which was characterized for the first time in the fruit of these landraces. The rootstock and scion combination could be a way to improve not only the production, but also the fruit quality of peppers.

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“…Lycopene was extracted using hexane:ethanol:acetone (2:1:1) (v/v) mixture following the method of Anthon and Diane, 2007;Adejo, Agbali & Otokpa, 2015 with some slight modifications. To analyse lycopene accumulated in fruit samples; the following five steps in analysis were followed: 1.…”

Section: Lycopene Analysismentioning

confidence: 99%

High Lycopene Tomato Breeding Through Diallel Crossing

Bdr

Anshori

Emanuella

et al. 2020

ATJ

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Tomatoes are known as one of the natural source of antioxidant, which is a compound that can inhibit and reduce oxidative cell and biomolecule damages, such as lipid, protein, and DNA. Health benefits from lycopene made this compound a tomato breeding subject for increasing its nutrient content. Tomato breeding is an environment friendly and sustainable method in agriculture biofortification methods, hence making the efforts for increasing tomato lycopene content to be possible. The aim of this research was to produce tomato hybrid with high lycopene and yield. This research was conducted in Experimental Farm, Faculty of Agriculture, Hasanuddin Univerisy, Makassar throughout June-Septermber 2020. This research was done in full diallel analysis using Griffing 1 method. Hybrid characters are highly determined with the presence of maternal effect. Lycopene has no correlation with productionCharacters correlated with lycopene are plant height, number of leaves, number of fruits per bunch, fruit length and fruit diameter, whilst productivity is correlated with number of leaves, stem diameter, and fruit diameter. Hybrids that can be used in further selection are CM, MC, MBC and KBC

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Antioxidant, Total Lycopene, Ascorbic Acid and Microbial Load Estimation in Powdered Tomato Varieties Sold in Dutsin-Ma Market

Cited by 17 publications

References 8 publications

Bioactive Compounds and Antioxidant Capacity of Valencian Pepper Landraces

Bioactive Compounds and Antioxidant Capacity of Valencian Pepper Landraces

Effect of Grafting on the Production, Physico-Chemical Characteristics and Nutritional Quality of Fruit from Pepper Landraces

High Lycopene Tomato Breeding Through Diallel Crossing

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