scholarly journals Variations in Bioactive Content in Different Tomato Trusses due to Elicitor Effects

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Luciano Ávila-Juárez ◽  
Herminio Miranda-Rodríguez
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Antioxidant Activities ◽  
Abiotic Factors ◽  
Tomato Fruit ◽  
Foliar Spray ◽  
Bioactive Compound ◽  
Physiological Parameters ◽  
Bioactive Content ◽  
Lycopene Content

The tomato fruit is rich in bioactive compounds with antioxidant activity, the levels of which can vary over time in response to biotic and abiotic factors, including the application of elicitors. We investigated the effects of foliar spray of methyl jasmonate (MeJ), salicylic acid (SA), nitric oxide (NO), and hydrogen peroxide (H2O2) on tomato plants every 15 days until the end of cultivation. We measured the levels of bioactive compounds, antioxidant activity, and physiological parameters in three distinct trusses. With the exception of plant length, the elicitors had no effects on physiological parameters, whereas they did have an effect on lycopene content, bioactive compound levels, and antioxidant activity in the three sampled trusses. A strong correlation between bioactive compounds and antioxidant activity was found for the elicitors, particularly MeJ. Our results indicate that certain bioactive compounds and their antioxidant activities vary not only between trusses but also based on the specific elicitor used.

scholarly journals Effect of Solvents on Bioactive Compounds and Antioxidant Activity of Padina Tetrastromatica and Gracilaria Tenuistipitata Seaweeds Collected From Bangladesh

2021 ◽  
Author(s):  
Mohammad Khairul Alam Sobuj ◽  
Md. Ariful Islam ◽  
Md. Shoebul Islam ◽  
Md. Mohidul Islam ◽  
Yahia Mahmud ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Reducing Power ◽  
Bioactive Compound ◽  
Total Phenolic ◽  
Gracilaria Tenuistipitata ◽  
Padina Tetrastromatica

Abstract Seaweeds are now recognized as a treasure of bioactive compounds. However, the seaweed of Bangladesh is still unexplored. So, this study was designed to explore the secondary metabolites and antioxidant activities of solvent extracts of Padina tetrastromatica and Gracilaria tenuistipitata. Phytochemical screening and Fourier transform infrared (FTIR) confirm the diverse type of bioactive compounds. Antioxidant activity of extracts were evaluated by 1, 1-diphenyl-2- picrylhydrazyl (DPPH), 2, 2-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), reducing power (RP), phosphomolybdenum and hydrogen peroxide assays. Here, methanolic extract of P. tetrastromatica showed the highest amount of total phenolic content (85.61 mg of GA/g), total flavonoid content (41.77 mg of quercetin/g), which showed as potent antioxidant properties confirmed by DPPH (77.07%), ABTS (77.65%), RP (53.24 mg AAE/g), phosphomolybdenum (31.58 mg AAE/g) and hydrogen peroxide (67.89%) assays followed by ethanol and water. This study concluded that bioactive compound and antioxidant activities are dose and solvent-dependent and seaweed type.

scholarly journals Bioactive Compounds, Antioxidant Activity and Growth Behavior in Lettuce Cultivars Grown under Field and Greenhouse Conditions

Proceedings ◽  
2020 ◽  
Vol 70 (1) ◽  
pp. 52
Author(s):  
Melisa Lanza Volpe ◽  
Verónica C. Soto Vargas ◽  
Anabel Morón ◽  
Roxana E. González
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Antioxidant Activities ◽  
Growth Conditions ◽  
Growth Behavior ◽  
Total Phenolic ◽  
Spectrophotometric Methods ◽  
Leafy Greens ◽  
Growing Conditions ◽  
Field Production

Lettuce (Lactuca sativa L.) is one of the most important leafy greens worldwide. The nutritional value of its edible leaf depends on different factors including type and growing conditions. The aim was to determine the bioactive compounds content, antioxidant activity and growth behavior of twenty-two lettuce genotypes, cultivated under field and greenhouse conditions. Total phenolic compound, chlorophylls, carotenoids, anthocyanin contents and antioxidant activities were analyzed by spectrophotometric methods. Data were analyzed by analysis of variance (ANOVA). Significant differences between bioactive compounds, antioxidant activity and growth behavior were found among cultivars and morphological types, for both growth conditions. Carotenoid and chlorophyll content was higher in greenhouse conditions for all genotypes. In field production, butterhead and iceberg lettuces showed lower content of these bioactive compounds. The red-pigmented Falbala cultivar from field production showed the highest level of polyphenols and anthocyanin. Meanwhile, in greenhouse conditions, the oak leaf cultivar Grenadine displayed the highest concentration of these phenolic compounds. The iceberg type lettuce showed the lowest percentages of antioxidant activity in both environments. The results showed the effect of growing conditions and the high variability in lettuce bioactive compounds content and antioxidant activity among the different types.

scholarly journals Ultrasonic Extraction of Bioactive Compounds From Green Soybean Pods and Application in Green Soybean Milk Antioxidants Fortification

2021 ◽  
Author(s):  
Noppol Leksawasdi ◽  
Siraphat Taesuwan ◽  
Trakul Prommajak ◽  
Charin Techapun ◽  
Rattanaporn Khonchaisri ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Bioactive Compound ◽  
Natural Antioxidants ◽  
Dependent Manner ◽  
Ultrasound Technique ◽  
Antioxidant Power ◽  
Soybean Milk

Abstract Green soybean (Glycine max L.) pods (GSP) are agro-industrial waste from the production of frozen green soybean and milk. These pods contain natural antioxidants and various bioactive compounds that are still underutilized. Polyphenols and flavonoids in GSP were extracted by ultrasound techniques and used in antioxidant fortification of green soybean milk. The ultrasound extraction that yielded the highest total polyphenol content was 50% amplitude for 10 min, whereas maximum flavonoids content was obtained at 50% amplitude for 15 min. Radical scavenging activity assayed by 2,2-diphenyl-1-picryl-hydrazyl radical (DPPH) and ferric reducing antioxidant power (FRAP) methods did not differ significantly (p>0.05) between the two conditions. Response surface methodology was applied to analyze an optimum ultrasonic-assisted extraction (UAE) condition of these variables. The highest desirability was found to be 50% amplitude with extraction time of 12.5 min. Fortification of the GSP extracts (1-3% v/v) in green soybean milk resulted in higher levels of bioactive compounds and antioxidant activity in a dose-dependent manner. Procyanidins were found to be the main polyphenols in dried GSP which were present at the concentration of 104.1 ± 2.1 mg/g dry sample, respectively. Addition of GSP extracts obtained by using an ultrasound technique to green soybean milk increased its bioactive compound content especially procyanidins as well as its antioxidant activity.

scholarly journals HPLC Fingerprint of Bioactive Compounds and Antioxidant Activities of Viscum album from Different Host Trees

2011 ◽  
Vol 39 (1) ◽  
pp. 48 ◽  
Author(s):  
Simona Ioana VICAŞ ◽  
Olivia Dumitrita RUGINA ◽  
Loredana LEOPOLD ◽  
Adela PINTEA ◽  
Carmen SOCACIU
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Malus Domestica ◽  
Dry Matter ◽  
Total Phenolics ◽  
Antioxidant Activities ◽  
Viscum Album ◽  
Fraxinus Excelsior ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Host Trees

Viscum album L. is a medicinal plants used for many years as a remedy in the traditional medicine and in complementary cancer therapies. We investigated the influence of some host trees: Acer campestre (VAA), Fraxinus excelsior (VAF), Populus nigra (VAP), Malus domestica (VAM), and Robinia pseudoacacia (VAR), on the chemical composition and antioxidant activity of leaves and stems from V. album, as well the influence of the solvent (water and ethanol) used for extraction on biological activity. HPLC with photodiode array detector analysis of bioactive compounds from leaves and stems of mistletoes (V. album) hosted by five differents trees was performed. Antioxidant activities, determined by the 2,2-diphenyl-1-picrylhydrazyl (DPPH), Oxygen Radical Absorbance Capacity (ORAC), (Trolox-equivalent antioxidant capacity (TEAC) methods were compared with the quantification of total phenolics using the Folin -Ciocalteu reagent. V. album hosted by Fraxinus excelsior (VAF), recorded the highest level of total phenolic acids (108.64 μg/g dry matter) while the mistletoe hosted by Malus domestica (VAM) had the lowest level of total polyphenols (39.37 μg/g dry matter). In general, higher antioxidant activity was detected in the alcoholic than in the aqueous extracts. The values obtained for total phenolics in both, aqueous and ethanol extracts, decreased in the order: VAR > VAF > VAP > VAA > VAM. The mistletoe stem extracts contained lower levels of phenolics, as compared to leaves, in both solvents. Our results suggest that mistletoe extracts possess significant antioxidant activities that may be due to their bioactive compounds content, suggesting that this plant may be an important source of natural products with chemopreventive and chemotherapeutic activities.

scholarly journals Bioactive Compounds and Antioxidant Activity of Mango Peel Liqueurs (Mangifera indica L.) Produced by Different Methods of Maceration

Antioxidants ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 102 ◽  
Author(s):  
Emanuela Monteiro Coelho ◽  
Marcelo Eduardo Alves Olinda de Souza ◽  
Luiz Claudio Corrêa ◽  
Arão Cardoso Viana ◽  
Luciana Cavalcanti de Azevêdo ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
High Performance ◽  
Mangifera Indica ◽  
Epigallocatechin Gallate ◽  
Reversed Phase ◽  
Epicatechin Gallate ◽  
Bioactive Content ◽  
Mango Peels

The present work had the objective of producing liqueurs from mango peels (varieties “Haden” and “Tommy Atkins”) by processes of alcoholic maceration and maceration with pectinase, as well as to evaluate bioactive compounds by reversed-phase high-performance liquid chromatography coupled to diode array detection and fluorescence-detection (RP-HPLC/DAD/FD) and in vitro antioxidant activity (AOX), for by-product potential reuse. Alcoholic maceration in wine ethanol (65% v/v) produced liqueurs with higher phytochemical and AOX content. Maceration with pectinase resulted in liqueurs with higher quercetin-3-O-glucopyranoside content. In relation to mango varieties, Haden liqueurs presented higher bioactive content than Tommy Atkins liqueurs. The liqueurs presented high antioxidant activity. The main bioactive compounds found were flavanols (epicatechin-gallate, epigallocatechin-gallate), flavonols (quercetin-3-O-glucopyranoside and rutin), and phenolic acids (gallic acid, o-coumaric acid, and syringic acid). The present study showed that the production of liqueur enabled the recovering of an important part of the bioactive content of mango peels, suggesting an alternative for the recovery of antioxidant substances from this by-product.

Effects of thermal pasteurization on jambolan tropical juice bioactive compounds

2019 ◽  
Vol 121 (11) ◽  
pp. 2821-2834
Author(s):  
Gilciane Américo Albuquerque ◽  
Ana Vânia Carvalho ◽  
Lênio José Guerreiro de Faria ◽  
Renan Campos Chisté ◽  
Luiza Helena da Silva Martins ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Statistical Significance ◽  
Bioactive Compound ◽  
Enzymatic Browning ◽  
Total Phenolic ◽  
Optimal Point ◽  
Total Anthocyanin ◽  
Content Type ◽  
Activity Of Enzymes

Purpose Jambolan has be used as a diabetes-treatment aid, and it has become quite popular; studies have been carried out over the years on this fruit because it presents high activity against superoxide anion and hydroxyl radicals due to the bioactive compounds that may play an important role against oxidative stress. No studies have been reported on the effects of pasteurization on the bioactive compounds of jambolan tropical juice. The paper aims to discuss these issues. Design/methodology/approach For evaluation of the effects of pasteurization on jambolan juice bioactive compounds, a complete compound and rotational experimental design was carried out by varying temperature (80–90°C) and time (45–75 s). The bioactive compounds (total phenolic, total anthocyanin and antioxidant activity) and the enzymatic activity of enzymes (enzymatic browning) were assessed. Findings The study of bioactive compounds in the pasteurized juice of jambolan, showed that the total phenolics (TP) and ABTS antioxidant activity presented statistical significance (p<0.05). The action of enzymes causing enzymatic browning was only observed in the standard sample. The optimization of the pasteurization process with the maximum bioactive compound retention was 91.65°C for 69.45 s. The optimal point found is in agreement with studies on thermal treatment that recommend using short times at high temperatures for better retention of food constituents. Originality/value The incidence of chronic diseases in humans has increased significantly over the years, some bioactive phytochemicals present in fruits may help against these diseases, so the production of tropical jambolana juices can help to nourish and regulate the consumer health. Therefore, studying the maintenance of bioactive compounds present in this product could be an alternative for the production of healthier foods.

scholarly journals Antioxidant Capacity and Polyphenolic Compounds of Blackberries Produced in Different Climates

HortScience ◽  
2019 ◽  
Vol 54 (12) ◽  
pp. 2209-2213 ◽  
Author(s):  
Camila P. Croge ◽  
Francine L. Cuquel ◽  
Paula T.M. Pintro ◽  
Luiz A. Biasi ◽  
Claudine M. De Bona
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Capacity ◽  
Bioactive Compounds ◽  
Abiotic Factors ◽  
Ascorbic Acid Content ◽  
Climatic Conditions ◽  
Total Polyphenols ◽  
Chemical Structures ◽  
Varied Chemical ◽  
Monomeric Anthocyanins

Antioxidants are compounds with varied chemical structures that are affected by biotic and abiotic factors. The objective of this study was to characterize and compare bioactive compounds and the antioxidant capacity of fruit from four blackberry cultivars produced under different climatic conditions. Ascorbic acid content, total polyphenols, flavonoids, monomeric anthocyanins and antioxidant activity of the fruit were evaluated, and high levels of bioactive compounds as well as antioxidant activity were observed regardless of the cultivar or growing location. The results showed that bioactive production is affected by the cultivar and environment. Furthermore, the antioxidant potential of the blackberry fruit depends on the total phenolics and anthocyanin.

scholarly journals Influence of drying on bioactive compounds and antioxidant activity of fruits of guabiju (Myrcianthes pungens)

2021 ◽  
Vol 10 (8) ◽  
pp. e5510817024
Author(s):  
Vanessa Barbieri Bombana ◽  
Carolina Elisa Demaman Oro ◽  
Diane Rigo ◽  
Caroline Chies Polina ◽  
Andressa Franco Denti ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Vitamin C ◽  
Water Activity ◽  
Bioactive Compounds ◽  
Antioxidant Activities ◽  
Dry Extract ◽  
Influence Of Temperature ◽  
Physical Chemical ◽  
Influence Of Temperature On

The objective of this work was to evaluate the influence of temperature on the content of bioactive compounds of fruits of guabiju (Myrcianthes pungens (O. Berg) D. Legrand). The peel, pulp and seed of fresh guabiju were analyzed in relation to physical-chemical composition, metals, color, phenolic compounds, flavonoids, anthocyanins, vitamin C and antioxidant activity. On the dehydrated samples at temperature of 60 °C, where also determined the moisture and water activity. The fractions of the fruit showed high amounts of metals. After drying, moisture of 1.3, 1.0 and 0.9% were observed for peel, pulp and seed and water activity of 0.44 to 0.54. All the samples darkened, with less variation in the dehydrated peel (∆E 9.2). The samples showed high values of bioactive compounds, and in the fresh peel were observed higher levels of phenolic compounds (8459.8 mg EGA/100g dry extract), anthocyanins (152.0 mg/100 dry extract) and vitamin C (222.9 mg/100g) and on the dehydrated seed higher value of flavonoids (7480.7 mg EQ/100g dry extract). There was 86.3% degradation of anthocyanins in the dehydrated peel. The best values of antioxidant activities were obtained for the dehydrated peel (IC50 1.37 mg/mL), seed (IC50 1.49 mg/mL) and in the fresh peel (IC50 1.41 mg/mL).

scholarly journals Impact of refrigerated storage on the bioactive compounds and antioxidant capacity of two Algerian carrot varieties (Daucus carota L.)

2020 ◽  
Vol 13 (1) ◽  
pp. 5-31
Author(s):  
L. Arkoub-Djermoune ◽  
H. Louaileche ◽  
F. Benmeziane ◽  
K. Madani ◽  
L. Boulekbache-Makhlouf
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Capacity ◽  
Bioactive Compounds ◽  
Daucus Carota ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Bioactive Compound ◽  
Total Phenolic ◽  
Daucus Carota L

Abstract Carrot (Daucus carota L.) is one of the main root vegetables rich in bioactive compounds with appreciable health-promoting properties, largely consumed in Algeria. In the current study, the storage effect (at 4 °C throughout 12 days) on bioactive compound stability and the antioxidant activity of two Algerian orange carrot varieties (Supermuscade and Touchon) were investigated. Total phenolic content of samples was determined by the Folin–Ciocâlteu method. Antioxidant capacity was determined spectrophotometrically, based on the evaluation of Free Radical Scavenging Activity (FRSA) using DPPH radical and Ferric Reducing Power (FRP). The results showed that the Touchon variety is richer in phenolics, flavonoids, and carotenoids and presents higher antioxidant activity in comparison with the Supermuscade variety. At the end of storage, the bioactive compound content and antiradical activity increased significantly (p < 0.05). Also, an extremely significant correlation (p < 0.001) was observed between the antioxidant contents and the antioxidant capacities of aqueous carrot extracts.

scholarly journals Determination of Phenolic Composition and Antioxidant Activity in Flowers and Stems of Rumex Tunetanus Using RP-UHPLC-ESI-QTOF-MS

2018 ◽  
Author(s):  
Jouda Abidi ◽  
Sonda Ammar ◽  
Mohamed Bouaziz
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Bioactive Compounds ◽  
Folk Medicine ◽  
Antioxidant Properties ◽  
Bioactive Compound ◽  
Selective Extraction ◽  
Total Phenolic ◽  
Negative Ionization Mode ◽  
Negative Ionization

The present study was designed to investigate the bioactive compound in Rumextunetanus extracts (polygonaceae), a plant growing in Gar&acirc;aSejnane region (NW-Tunisia). Hydro-methanol extracts of flowers and stems of Rumextunetanus were analyzed by RP-UHPLC-ESI-QTOF-MS in the negative mode to identify the maximum of bioactive compounds. Applied the aforementioned method, a total of 60 bioactive compounds were characterized for the first time in Rumextunetanus between them, 18 photochemical were firstly identified in the Polygonaceae family in negative ionization mode. Quantification of the identified compounds revealed that quercetin-3-O-glucuronide and (-)-epicatechingallate were the most abundant phenolic compounds in flowers and stems, respectively. Moreover, positive correlations were found between the antioxidant activity measured by DPPH and FRAP assays with the total phenolic compounds (r = 0.98; r = 0.99, respectively) and the abundance of some phenolic subfamilies such as hydroxycinnamic acids, hydroxybenzoic acids, flavonols and flavones with r &gt; 0.86. The compounds displaying significant (P &lt; 0.01) and good correlations with the antioxidant activity (r &gt; 0.93) were hydroxybenzoic acid, rutin, quercetin-3-O-glucuronide, quercetin-3-O-glucoside, quercetin and luteolin-7-O-rutinoside. In addition, the flowers and stems of Rumex tunetanus showed different bioactive compound profiles and significant antioxidant properties of extracts. These results highlight the potential of the RP-UHPLC-ESI-QTOF-MS and MS/MS system to identify untargeted metabolic profiling of Rumex tunetanus. Overall, these results contribute to the clear explanation of the past and current usage of genus Rumex in folk medicine. Future investigations are necessary to develop purified antioxidant extracts, with the application of more selective extraction techniques.

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