scholarly journals Chemical Composition and Bioactive Properties of Purple French Bean (Phaseolus vulgaris L.) as Affected by Water Deficit Irrigation and Biostimulants Application

2021 ◽  
Vol 13 (12) ◽  
pp. 6869
Author(s):  
Ângela Fernandes ◽  
Sara Figueiredo ◽  
Tiane C. Finimundy ◽  
José Pinela ◽  
Nikolaos Tzortzakis ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Water Deficit ◽  
Deficit Irrigation ◽  
Thiobarbituric Acid ◽  
Tocopherol Content ◽  
French Bean ◽  
Negative Effects ◽  
Variable Effect ◽  
Practical Applications ◽  
Bioactive Properties

Biostimulants are a novel and eco-friendly agronomic tool with practical applications in alleviating negative effects of environmental stressors. The present work studied the effects of three biostimulant products (Nomoren (N), Twin-Antistress (TW), and X-Stress (XS)) under normal irrigation (W+) and water deficit irrigation conditions (W-) on the nutritional, chemical composition and bioactive properties of common bean fresh pods. A variable effect of biostimulants and water deficit irrigation was observed on nutritional value parameters, while fructose and sucrose were the main detected sugars, especially in NW+ and CW- treatments. Oxalic, malic, and citric acid were the main detected organic acids, while γ- and total tocopherol content was the highest in TWW+. (+)-Catechin and (-)-epicatechin were the most abundant phenolic compounds, especially in the NW- treatment. A variable antioxidant capacity was observed for the Thiobarbituric Acid Reactive Substances (TBARS) and Oxidative Haemolysis assays (OxHLIA), while TWW+ extracts showed the best overall results against the tested fungi. In conclusion, the tested biostimulants had a positive effect on chemical composition and bioactivities of purple bean depending on the irrigation regime.

scholarly journals The Effects of Biostimulants, Biofertilizers and Water-Stress on Nutritional Value and Chemical Composition of Two Spinach Genotypes (Spinacia oleracea L.)

Molecules ◽  
2019 ◽  
Vol 24 (24) ◽  
pp. 4494 ◽  
Author(s):  
Carla Pereira ◽  
Maria Inês Dias ◽  
Spyridon A. Petropoulos ◽  
Sofia Plexida ◽  
Antonios Chrysargyris ◽  
...  
Keyword(s):  
Water Stress ◽  
Chemical Composition ◽  
Spinacia Oleracea ◽  
Calorific Value ◽  
Tocopherol Content ◽  
Stress Conditions ◽  
Variable Effect ◽  
Positive Effects ◽  
Bioactive Properties ◽  
Irrigation Regimes

In the present study, the effect of biostimulants application on the nutritional quality and bioactive properties of spinach cultivated in protected environment under water stress conditions was evaluated. For this purpose, four commercially available biostimulant products (Megafol (MEG), Aminovert (AM), Veramin Ca (V), Twin Antistress (TA), and two spinach genotypes (Fuji F1 and Viroflay) were tested under two irrigation regimes (normal irrigation (W+), and water-holding (W–). Fat and carbohydrates content was favored by water stress when Megafol (MEGW+) and Veramin (VW+) were applied on Fuji plants, while calorific value was also increased by MEGW+ treatment. In contrast, protein and ash content increased when AMW– and TAW+ were applied on Viroflay plants. Raffinose and glucose were the most abundant sugars, followed by sucrose and fructose, with the highest contents recorded for Fuji plants when AMW+ (fructose, glucose and total carbohydrates), CW– (sucrose), and TAW– (raffinose) treatments were applied. Regarding organic acids, oxalic and malic acid which had the highest contents for the TAW– (Viroflay plants) and AMW– (Fuji plants) treatments, respectively. α- and γ-tocopherol were the only isoforms detected with MEGW– and VW– inducing the biosynthesis of α-tocopherol, while AMW+ increased γ-tocopherol content in Fuji plants. The main fatty acids were α-linolenic and linoleic acids which were detected in the highest amounts in AMW–, AMW+, and TAW+ the former and in AMW–, VW–, and CW+ the latter. Regarding phenolic compounds content, peak 12 (5,3′,4′-Trihydroxy-3-methoxy-6:7-methylenedioxyflavone-4′-glucuronide) was the most abundant compound, especially in Viroflay plants under normal irrigation and no biostimulants added (CW–). The antioxidant and cytotoxic activity of the tested samples did not show promising results when compared with the positive controls, while a variable antibacterial activity was recorded depending on the tested biostimulant, irrigation regime and genotype. In conclusion, a variable effect of the tested biostimulants and irrigation regimes was observed on bioactive properties and chemical composition of both spinach genotypes which highlights the need for further research in order to make profound conclusions regarding the positive effects of biostimulants under water stress conditions.

scholarly journals Impact of in vitro gastrointestinal digestion on the chemical composition, bioactive properties, and cytotoxicity of Vitis vinifera L. cv. Syrah grape pomace extract

2019 ◽  
Vol 10 (4) ◽  
pp. 1856-1869 ◽  
Author(s):  
Joana R. Costa ◽  
Manuela Amorim ◽  
Ana Vilas-Boas ◽  
Renata V. Tonon ◽  
Lourdes M. C. Cabral ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Phenolic Compounds ◽  
Vitis Vinifera ◽  
Human Health ◽  
Grape Pomace ◽  
Vitis Vinifera L ◽  
Gastrointestinal Digestion ◽  
Gastrointestinal Health ◽  
Bioactive Properties

Grape pomace (GP) is a major byproduct worldwide, and it is well known for its bioactive compounds, such as fibers and phenolic compounds, that are popular for their impact upon human health, including in gastrointestinal health.

scholarly journals Photosynthetic efficiency and production of cowpea cultivars under deficit irrigation

2018 ◽  
Vol 13 (5) ◽  
pp. 1 ◽  
Author(s):  
Alberto Soares de Melo ◽  
Allisson Rafael Ferreira da Silva ◽  
Alexson Filgueiras Dutra ◽  
Wellison Filgueiras Dutra ◽  
Marcos Eric Barbosa Brito ◽  
...  
Keyword(s):  
Water Deficit ◽  
Deficit Irrigation ◽  
Photosynthetic Efficiency ◽  
Arid Regions ◽  
Carbon Fixation ◽  
Management Strategies ◽  
Carbon Assimilation ◽  
Green Beans ◽  
Gas Exchanges ◽  
Cowpea Cultivars

Cowpea is a crop with great economic, social and food importance in semi-arid regions, but its production is drastically reduced by the water deficit in these regions, requiring better management strategies that allow the crop’s production. This study therefore aimed to evaluate the photosynthetic efficiency and production of cowpea cultivars under deficit irrigation replacement levels. The experiment tested three cowpea genotypes (G1 = ‘BRS Aracé’, G2 = ‘BR 17 Gurguéia’ and G3 = ‘BRS Marataoã’) and four irrigation depths (40, 60, 80 and 100% of ETc), resulting in a 3 x 4 factorial scheme, arranged in randomized complete blocks design with four replicates. During the experiment, the gas exchanges, chlorophyll a fluorescence and production of the cowpea genotypes under deficit irrigation were evaluated. Carbon fixation in the photosynthetic metabolism of cowpea plants was reduced by accentuated water deficit, regardless of the genotype. The low stress severity was indicated by the lack of effects on chlorophyll fluorescence, indicating that the reduction in the rate of carbon assimilation was due to the stomatal effects. The irrigation with 80% of ETc can be used in the cultivation of the respective cultivars, but with small losses in the production. Among the genotypes, ‘BRS Marataoã’ stands out with respect to yield, with higher values for weight of pods and green beans.

scholarly journals Evaluation of performance and chemical composition of Petroselinum crispum essential oil under different conditions of water deficit

2016 ◽  
Vol 11 (6) ◽  
pp. 480-486 ◽  
Author(s):  
Burin Borges Ivania ◽  
Karen Cardoso Bruna ◽  
Schneider Silva Elo iacute sa ◽  
Souza de Oliveira J eacute ssica ◽  
Ferreira da Silva Rafael ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Water Deficit ◽  
Petroselinum Crispum ◽  
Evaluation Of Performance

scholarly journals Fermented yellow mombin juice using Lactobacillus acidophilus NRRL B-4495: Chemical composition, bioactive properties and survival in simulated gastrointestinal conditions

PLoS ONE ◽  
2020 ◽  
Vol 15 (9) ◽  
pp. e0239392 ◽  
Author(s):  
Ellane Sabryna Sena Ribeiro ◽  
Karla Suzanne Florentino Silva Chaves Damasceno ◽  
Livia Maria da Costa Dantas ◽  
Wendell Medeiros de Azevedo ◽  
Pedro Ivo Palacio Leite ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Lactobacillus Acidophilus ◽  
Bioactive Properties ◽  
Gastrointestinal Conditions

scholarly journals Pharmacology and Phytochemistry of Ecuadorian Medicinal Plants: An Update and Perspectives

2021 ◽  
Vol 14 (11) ◽  
pp. 1145
Author(s):  
Chabaco Armijos ◽  
Jorge Ramírez ◽  
Melissa Salinas ◽  
Giovanni Vidari ◽  
Alírica I. Suárez
Keyword(s):  
Chemical Composition ◽  
Medicinal Plants ◽  
Secondary Metabolites ◽  
Essential Oils ◽  
Volatile Compounds ◽  
Biological Activities ◽  
Indigenous Communities ◽  
Therapeutic Agents ◽  
Practical Applications ◽  
Pharmacological Studies

The use of plants as therapeutic agents is part of the traditional medicine that is practiced by many indigenous communities in Ecuador. The aim of this study was to update a review published in 2016 by including the studies that were carried out in the period 2016–July 2021 on about 120 Ecuadorian medicinal plants. Relevant data on raw extracts and isolated secondary metabolites were retrieved from different databases, resulting in 104 references. They included phytochemical and pharmacological studies on several non-volatile compounds, as well as the chemical composition of essential oils (EOs). The tested biological activities are also reported. The potential of Ecuadorian plants as sources of products for practical applications in different fields, as well the perspectives of future investigations, are discussed in the last part of the review.

scholarly journals ROOT SYSTEM IN MAIZE PLANTS CULTIVATED UNDER WATER DEFICIT AND APPLICATION OF CHITOSAN

2020 ◽  
Vol 19 ◽  
pp. 11
Author(s):  
LORENA GABRIELA ALMEIDA ◽  
EDER MARCOS DA SILVA ◽  
PAULO CÉSAR MAGALHÃES ◽  
DÉCIO KARAM ◽  
CAROLINE OLIVEIRA DOS REIS ◽  
...  
Keyword(s):  
Plant Growth ◽  
Root System ◽  
Water Deficit ◽  
Water Availability ◽  
Agricultural Production ◽  
Negative Effects ◽  
Flowering Stage ◽  
Specific Behavior ◽  
Maize Plants ◽  
Corn Plants

Low water availability is characterized as an abiotic stressthat limits the agricultural production. Due to the physical and chemicalcharacteristics of the chitosan (CHT), this substance might stimulatephysiological responses on plants to tolerate the water deficit. In this sense,we submitted corn plants to water deficit and application of chitosan on theleaves (140 mg/L) during pre flowering stage. It were analyzed two cornhybrids genotypes contrasting for water deficit tolerance: DKB 390 (tolerant)and BRS1010 (sensitive). Then, we performed evaluations on the rootsystem and production components. Corn plants submitted to the applicationof chitosan presented a specific behavior: when compared the hybrids,the tolerant one presented a root system that was more developed and anexpressive agronomical yield. These results highlight the fact that the chitosanstimulates plant growth, enhancing their root system and contributing toincrease the availability and absorption of water and nutrients. The chitosanpresents a potential to reduce the negative effects of water deficit on the rootsystems, without compromising the agronomical yield.

scholarly journals Growth and yield of wheat (Triticum aestivum) under deficit irrigation

2014 ◽  
Vol 38 (4) ◽  
pp. 719-732 ◽  
Author(s):  
PK Sarkar ◽  
MSU Talukder ◽  
SK Biswas ◽  
A Khatun
Keyword(s):  
Water Stress ◽  
Grain Yield ◽  
Water Deficit ◽  
Deficit Irrigation ◽  
Water Productivity ◽  
Root Initiation ◽  
Moisture Condition ◽  
Soil Moisture Condition ◽  
Crown Root ◽  
Initiation Stage

Timing and the extent of water deficit were studied in a field experiment on wheat (cv. Shatabdi) for three consecutive years from 2003-04 through 2005-06 at Jamalpur area. The effects of number and timing of irrigation application on yields were investigated under variable soil moisture condition in the root zone of different treatments. Eight deficit irrigations, including one no stress and one rainfed treatments were selected to subject the crop to various degrees of soil water deficit at different stages of crop growth. Measured amount of irrigation water was applied as per schedule prescribed for a particular treatment. Grain yield (GY), biomass, harvest index (HI), and water productivity (WP) were reasonably affected by deficit irrigation. Other yield contributing parameters like 1000-grain weight, grains/spike and spike, length were also affected by different levels of deficit irrigation. During grain formation stage, water deficit did not affect the grain yield but saved water significantly. Such water deficit treatments also shortened the grain maturation period. Differences in grain and straw yield among the stressed and no stress treatments are comparatively small, and statistically insignificant in some cases. The highest water productivity (2.02 kg/m3) was observed in treatment which was irrigated only once at crown root initiation stage (T2) although the yield was comparatively low. The CRI (crown root initiation) stage was found the most sensitive to water stress. Water stress at vegetative stage also reduced the yield considerably. DOI: http://dx.doi.org/10.3329/bjar.v38i4.19663 Bangladesh J. Agril. Res. 38(4): 719-732, December 2013

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