Evaluation of Physico-chemical Characteristics, Antioxidant Compounds and Antioxidant Capacity in Creole Tomatoes (Solanum lycopersicum L. and S. pimpinellifolium L.) in an Aquaponic System or Organic Soil

2018 ◽  
Vol 25 (2) ◽  
pp. 124-137 ◽  
Author(s):  
Mariana Delgadillo-Díaz ◽  
Mariel Gullian-Klanian ◽  
Odri Sosa-Moguel ◽  
Enrique Sauri-Duch ◽  
Luis Fernando Cuevas-Glory
Keyword(s):  
Antioxidant Capacity ◽  
Solanum Lycopersicum ◽  
Organic Soil ◽  
Antioxidant Compounds ◽  
Chemical Characteristics ◽  
Solanum Lycopersicum L ◽  
Physico Chemical

scholarly journals Concomitant phytonutrient and transcriptome analysis of mature fruit and leaf tissues of tomato (Solanum lycopersicum L. cv. Oregon Spring) grown using organic and conventional fertilizer

2019 ◽  
Author(s):  
Richard M Sharpe ◽  
Luke Gustafson ◽  
Seanna Hewitt ◽  
Benjamin Kilian ◽  
James Crabb ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Solanum Lycopersicum ◽  
Organic Fertilizer ◽  
Agricultural Practices ◽  
Organic Soil ◽  
Fertilizer Treatment ◽  
Tomato Genome ◽  
Mature Fruit ◽  
Solanum Lycopersicum L ◽  
Leaf Tissues

ABSTRACTEnhanced levels of antioxidants, phenolic compounds, carotenoids and vitamin C have been reported for several crops grown under organic fertilizer, albeit with yield penalties. As organic agricultural practices continue to grow and find favor it is critical to gain an understanding of the molecular underpinnings of the factors that limit the yields in organically farmed crops. Concomitant phytochemical and transcriptomic analysis was performed on mature fruit and leaf tissues derived from Solanum lycopersicum L. ‘Oregon Spring’ grown under organic and conventional fertilizer conditions to evaluate the following hypotheses. 1. Organic soil fertilizer management results in greater allocation of photosynthetically derived resources to the synthesis of secondary metabolites than to plant growth, and 2. Genes involved in changes in the accumulation of phytonutrients under organic fertilizer regime will exhibit differential expression, and that the growth under different fertilizer treatments will elicit a differential response from the tomato genome. Both these hypotheses were supported, suggesting an adjustment of the metabolic and genomic activity of the plant in response to different fertilizers. Organic fertilizer treatment showed an activation of photoinhibitory processes through differential activation of nitrogen transport and assimilation genes resulting in higher accumulation of phytonutrients. This information can be used to identify alleles for breeding crops that allow for efficient utilization of organic inputs.Significance statementOrganic fertilizer changes the expression of the tomato genome, induces photosynthetic stress which elicits higher production of secondary metabolites.

scholarly journals Paramylon Treatment Improves Quality Profile and Drought Resistance in Solanum lycopersicum L. cv. Micro-Tom

Agronomy ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 394 ◽  
Author(s):  
Laura Barsanti ◽  
Primo Coltelli ◽  
Paolo Gualtieri
Keyword(s):  
Drought Stress ◽  
Solanum Lycopersicum ◽  
Drought Resistance ◽  
Water Scarcity ◽  
Fold Increase ◽  
Quality Parameters ◽  
Soluble Carbohydrates ◽  
Antioxidant Compounds ◽  
Solanum Lycopersicum L ◽  
Quality Profile

Tomatoes, the most cultivated vegetables worldwide, require large amounts of water and are adversely affected by water stress. Solanum lycopersicum L., cv. Micro-Tom was used to assess the effects of β-(1,3)-glucan (paramylon) purified from the microalga Euglena gracilis on drought resistance and fruit quality profile. Plants were grown in an aeroponic system under three cultivation conditions: optimal water regimen, water scarcity regimen, and water scarcity regimen coupled with a root treatment with paramylon. Eco–physiological, physicochemical and quality parameters were monitored and compared throughout the lifecycle of the plants. Drought stress caused only a transient effect on the eco–physiological parameters of paramylon-treated plants, whereas physicochemical and biochemical parameters underwent significant variations. In particular, the fruits of paramylon-treated plants reached the first ripening stage two weeks before untreated plants grown under the optimal water regime, while the fruits of stressed untreated plants did not ripe beyond category II. Moreover, antioxidant compounds (carotenoids, phenolic acid, and vitamins) of fruits from treated plants underwent a two-fold increase with respect to untreated plants, as well as soluble carbohydrates (glucose, fructose, and sucrose). These results show that paramylon increases plant resistance to drought and highly improves the quality profile of the fruits with respect to untreated plants grown under drought stress.

PHYSICO-CHEMICAL PROPERTIES OF TOMATO SEED OIL (SOLANUM LYCOPERSICUM L.) FOR BIODIESEL PRODUCTION

2015 ◽  
pp. 237-244 ◽  
Author(s):  
A.M. Giuffrè ◽  
V. Sicari ◽  
M. Capocasale ◽  
C. Zappia ◽  
T.M. Pellicanò ◽  
...  
Keyword(s):  
Solanum Lycopersicum ◽  
Seed Oil ◽  
Chemical Properties ◽  
Biodiesel Production ◽  
Tomato Seed ◽  
Solanum Lycopersicum L ◽  
Physico Chemical ◽  
Tomato Seed Oil

scholarly journals Physico‐chemical characteristics and antioxidant capacity of chickpea and wheat flour blends

2019 ◽  
Vol 33 (S1) ◽  
Author(s):  
Jiwan S. Sidhu ◽  
Tasleem A. Zafar ◽  
Abdulwahab S. Almusallam ◽  
Muslim Ali ◽  
Amani Al‐Othman
Keyword(s):  
Antioxidant Capacity ◽  
Wheat Flour ◽  
Chemical Characteristics ◽  
Physico Chemical ◽  
Flour Blends

scholarly journals Effect of Drying Methods on the Physico-chemical Characteristics and Antioxidant Capacity of Taro, Sweetpotato, Stevia and Malunggay Leaves

2017 ◽  
pp. 88-99
Author(s):  
Inish Chris Mesias ◽  
Julie Tan ◽  
Daniel Leslie Tan ◽  
Benjamin L. Cinto
Keyword(s):  
Antioxidant Capacity ◽  
Bulk Density ◽  
Water Activity ◽  
Enzymatic Browning ◽  
Chemical Characteristics ◽  
Drying Methods ◽  
Solar Drying ◽  
Rehydration Ratio ◽  
Sun Drying ◽  
Physico Chemical

Fresh leaves are sensitive to high temperature so that appropriate drying method should be selected to dry leaves. This study aimed to determine the effect of drying methods on the physico-chemical characteristics and antioxidant capacity of taro (Colocasia esculenta), sweetpotato (Ipomea batatas), stevia (Stevia rebaudiana), and malunggay (Moringa oleifera) leaves. Fresh, healthy and mature leaves of taro, sweetpotato, stevia, and malunggay were subjected to solar drying, mechanical drying, and sun drying. The parameters evaluated in this study included moisture content, rehydration ratio, bulk density, water activity, total chlorophyll, antioxidant capacity, and non-enzymatic browning. Results showed that solar drying obtained the highest moisture removal capacity, rehydration ratio and water activity reduction while sun drying had the least. However, it was also with solar drying that the degree of non-enzymatic browning was the highest. Minimum bulk density was attained using solar and mechanical drying. In terms of chlorophyll content, mechanical drying had the highest. No apparent difference at p<0.05 between solar and sun drying methods was observed in terms of their effects on chlorophyll retention and antioxidant capacity. Variable effects of the different drying methods include little or no change, significant declines or enhancement of the leaves' physico-chemical and antioxidant attributes.

scholarly journals Effect of Grafting Rootstock on the Antioxidant Capacity and Content of Heirloom Tomatoes (Solanum lycopersicum L.) in Hydroponic Culture

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 965
Author(s):  
Jamie Greathouse ◽  
Shelby Henning ◽  
Mette Soendergaard
Keyword(s):  
Antioxidant Capacity ◽  
Solanum Lycopersicum ◽  
Phenolic Content ◽  
Hydroponic Culture ◽  
Wild Type ◽  
Dpph Assay ◽  
Methanol Extracts ◽  
Solanum Lycopersicum L ◽  
Freeze Dried ◽  
Hydroponic Systems

Heirloom tomato varieties are in demand by consumers due to high antioxidant levels. However, these varieties are difficult to produce and are prone to disease. To overcome these problems, heirloom tomatoes may be cultivated in hydroponic systems and grafted onto disease-resistant rootstocks. However, it is unknown if the antioxidant content and capacity are affected by grafting. In this study, heirloom (Black Krim and Green Zebra) and standard (Big Beef) varieties were grafted onto wild type (WT) or productive rootstocks (Arnold and Supernatural). The tomatoes were harvested at maturity, freeze-dried, and ground into a powder. Lycopene was extracted using hexane, and the content was determined spectrophotometrically at 503 nm. The antioxidant capacity of methanol extracts was evaluated by the 2,2′-azino-di[3-ethylbenzthiazoline sulfonsyr]sulphonic acid (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) assays, whereas the phenolic content was determined using the Folin–Ciocalteu assay. Interestingly, the grafting of Big Beef and Green Zebra onto Supernatural rootstock resulted in an increased antioxidant capacity, as determined by the DPPH assay. Moreover, the phenolic content was changed for Big Beef grafted onto Arnold, and Big Beef and Green Zebra grafted onto Supernatural. Taken together, these results indicate that certain combinations of standard and heirloom tomato varieties and productive rootstocks may influence the antioxidant capacity and phenolic content. These results may be used to guide producers when choosing rootstocks for cultivating hydroponic tomatoes.

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

Antioxidants ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 501 ◽  
Author(s):  
Ramón Gisbert-Mullor ◽  
Costanza Ceccanti ◽  
Yaiza Gara Padilla ◽  
Salvador López-Galarza ◽  
Ángeles Calatayud ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Nutritional Quality ◽  
Bioactive Compound ◽  
Chemical Characteristics ◽  
Maturity Stage ◽  
Green Fruit ◽  
Physico Chemical ◽  
Nutritional Characteristics ◽  
Discriminant Analyses

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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