A comparative study of bioactive compounds, antioxidant activity and phenolic compounds of melon ( Cucumis melo L.) slices dehydrated by oven, microwave and infrared systems

2021 ◽  
Author(s):  
Isam A. Mohamed Ahmed ◽  
Fahad Al Juhaimi ◽  
Mehmet Musa Özcan ◽  
Nurhan Uslu ◽  
Elfadıl E Babiker ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Comparative Study ◽  
Bioactive Compounds ◽  
Cucumis Melo ◽  
Cucumis Melo L

scholarly journals Bioactive Compounds in the Peripheral Layers of Barley and Triticale Species in the Mature Grain Cultivated in Algeria

2020 ◽  
Vol 10 (4) ◽  
pp. 37-43
Author(s):  
Rawda Benguella ◽  
Samira Meziani ◽  
Ibtissam Ghueffari ◽  
Norddine Menadi ◽  
Fatima Zohra Chenni ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Comparative Study ◽  
Bioactive Compounds ◽  
Polyphenolic Compounds ◽  
Dpph Radical ◽  
Wheat Grain ◽  
Chemical Protection ◽  
Peripheral Layer ◽  
High Level

The present study designed to determine in compositions of peripheral layer (PL) from barley and triticale. The peripheral layer is a co-product of the grain mill, it represents with the flour and the germ one of the three fractions of the milling, it is used for the chemical protection of the endosperm and the germ. Phytochemicals (phenolic compounds, vitamins and minerals) are beneficial for the health of consumers and are found abundantly in the peripheral layer of cereals. The objective of our work consists an evaluation of the phytochemical value for peripheral layers, the evaluation of the antioxidant content and the antioxidant activity of two varieties of two species of cereal in mature grain: triticale (Ksar Sbahi, Beni Haroun) and barley (Fouara, Saida); from two different regions (Sidi Bel Abbes and Constantine). Finally a comparative study was found in this work. The results obtained show that the variety of each species Triticale (Ksar Sbahi), barley (Fouara) have the highest content of polyphenol and flavonoid (0.027 mg (EAG)/g; 0.019 mg EC/g) and (0.012 mg (EAG)/g; 0.013 mg EC/g), respectively, for the antioxidant activity barley Fouara 1.91 mg/ml shows the best activity against the DPPH radical, a high level of minerals has been observed for the triticale species and a higher level of sodium for the Fouara variety of barley 33.78 mg/l. We are planning additional studies to better characterize the nature of the polyphenolic compounds existing in different histological parts of the wheat grain. Keywords: Barley, Triticale, Peripheral layer, Polyphenols, Antioxidant activity,

scholarly journals The Effects of Bioactive Compounds from Blueberry and Blackcurrant Powder on Oat Bran Pastes: Enhancing In Vitro Antioxidant Activity and Reducing Reactive Oxygen Species in Lipopolysaccharide-Stimulated Raw264.7 Macrophages

Antioxidants ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 388
Author(s):  
Xiao Dan Hui ◽  
Gang Wu ◽  
Duo Han ◽  
Xi Gong ◽  
Xi Yang Wu ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Bioactive Compounds ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Raw264.7 Macrophages ◽  
Oat Bran

In this study, blueberry and blackcurrant powder were chosen as the phenolic-rich enrichments for oat bran. A Rapid Visco Analyser was used to form blueberry and blackcurrant enriched oat pastes. An in vitro digestion process evaluated the changes of phenolic compounds and the in vitro antioxidant potential of extracts of pastes. The anthocyanidin profiles in the extracts were characterised by the pH differential method. The results showed that blueberry and blackcurrant powder significantly increased the content of phenolic compounds and the in vitro antioxidant capacity of pastes, while the total flavonoid content decreased after digestion compared to the undigested samples. Strong correlations between these bioactive compounds and antioxidant values were observed. Lipopolysaccharide-stimulated RAW264.7 macrophages were used to investigate the intracellular antioxidant activity of the extracts from the digested oat bran paste with 25% enrichment of blueberry or blackcurrant powder. The results indicated that the extracts of digested pastes prevented the macrophages from experiencing lipopolysaccharide (LPS)-stimulated intracellular reactive oxygen species accumulation, mainly by the Kelch-like ECH-associated protein 1 (Keap1)/nuclear factor erythroid 2-related factor 2 (Nrf2) signalling pathway. These findings suggest that the bioactive ingredients from blueberry and blackcurrant powder enhanced the in vitro and intracellular antioxidant capacity of oat bran pastes, and these enriched pastes have the potential to be utilised in the development of the functional foods.

scholarly journals Microwave-Assisted Extraction and Ultrasound-Assisted Extraction of Bioactive Compounds from Grape Pomace

2020 ◽  
Vol 16 (1-2) ◽  
Author(s):  
Cassiano Brown da Rocha ◽  
Caciano Pelayo Zapata Noreña
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Bioactive Compounds ◽  
Grape Pomace ◽  
Total Phenolic ◽  
Microwave Assisted Extraction ◽  
Ultrasound Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Ultrasound Assisted

AbstractThe grape pomace is a by-product from the industrial processing of grape juice, which can be used as a source of bioactive compounds. The aim of this study was to separate the phenolic compounds from grape pomace using an acidic aqueous solution with 2 % citric acid as a solvent, using both ultrasound-assisted extraction, with powers of 250, 350 and 450 W and times of 5, 10 and 15 min, and microwave-assisted extraction using powers of 600, 800 and 1,000 W and times of 5, 7 and 10 min. The results showed that for both methods of extraction, the contents of total phenolic compounds and antioxidant activity by ABTS and DPPH increased with time, and microwave at 1,000 W for 10 min corresponded to the best extraction condition. However, the contents of phenolic compounds and antioxidant activity were lower than exhaustive extraction using acidified methanol solution.

scholarly journals Teas, dietary supplements and fruit juices: A comparative study regarding antioxidant activity and bioactive compounds

LWT ◽  
2012 ◽  
Vol 49 (2) ◽  
pp. 324-328 ◽  
Author(s):  
A.S.G. Costa ◽  
M.A. Nunes ◽  
I.M.C. Almeida ◽  
M.R. Carvalho ◽  
M.F. Barroso ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Comparative Study ◽  
Dietary Supplements ◽  
Bioactive Compounds ◽  
Fruit Juices

scholarly journals Characterization of functional components flour epicarp papaya (Carica papaya L) as a source of natural pigments

Respuestas ◽  
2019 ◽  
Vol 24 (2) ◽  
pp. 39-48
Author(s):  
Viviana Andrea Velasco Arango ◽  
John Edwin Sotelo Barbosa ◽  
Luis Eduardo Ordoñez Santos ◽  
José Igor Hleap Zapata
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Bioactive Compounds ◽  
Carica Papaya ◽  
Titratable Acidity ◽  
Carotenoid Content ◽  
Industrial Processing ◽  
Natural Pigments ◽  
Pharmaceutical Industries ◽  
Functional Components

Papaya (Carica papaya L) is some fruit rich in antioxidants and an important source for obtaining bioactive compounds. Its production, worldwide for the year 2017, was 13.3 million tons. In its industrial processing is obtained approximately between 15 and 20%, in relation to the weight of the fruit, of husks or epicarp, which are likely to be used in order to obtain organic compounds such as carotenoids and polyphenols, among others, contributing, in addition, to mitigate the effects on the environment, since generally, these shells are thrown into landfills of solid waste, generating serious problems of environmental pollution. The objective of this research was to characterize physicochemically the carotenoid pigments obtained from the papaya epicarp. A papaya epicarp flour was processed and it was determined, both in it and in the fresh epicarp, pH, titratable acidity, moisture content and dry matter. Likewise, the carotenoid content, the antioxidant activity and the content of phenolic compounds were determined. The results showed high values for physicochemical parameters. The content of carotenoid compounds for the fractions of β-carotene, α-carotene, β-cryptoxanthin, Zeaxanthin and lycopene ranged between 8,587 and 4,070 mg/100g of epicarp, with the highest value corresponding to β-cryptoxanthin and the lowest value the lycopene fraction. The antioxidant activity, expressed as inhibition of the DPPH radical, gave a value of 58.77 ± 3.038 IC50 mg/ml. The content of phenolic compounds measured in mg of gallic acid equivalents/g gave a result of 24.948 ± 0.728. The data obtained allow us to conclude that said flour can be used as a source of bioactive compounds and natural pigments both in the food industry and in the technical and pharmaceutical industries.

scholarly journals Comparative study of some bioactive compounds and their antioxidant activity of some berry types

10.5219/1132 ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 515-523 ◽  
Author(s):  
Amina Aly ◽  
Rabab Maraei ◽  
Omneya Abou El-Leel
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Chemical Composition ◽  
Phenolic Compounds ◽  
Bioactive Compounds ◽  
Environmental Conditions ◽  
The Body ◽  
Harvest Time ◽  
Berry Fruits ◽  
Red Currant

Berries are wealthy in bioactive compounds like phenolic compounds and flavonoids that are deemed antioxidants and are great important to health. This research was performed to examine, recognize and compare bioactive compounds in certain types of berries and their antioxidant activity. The data show that blue berry, black berry and Egyptian black mulberry contain the highest content of most bioactive compounds such as phenolic compounds, flavonoids and tannins, while long mulberry and red currant berry have the lowest content for most of these compounds. They therefore, contain the highest value of antioxidant activity. The chemical composition of the berries varies depending on cultivar, variety, location of growth, environmental conditions and harvest time, as well as post-harvest treatments therefore the composition differed from berry fruit to another. Thus, berry fruits are very useful in nutrition to protect the body from many diseases because of its containment of these compounds, which act as free radicals scavenger that harm the body and thus rid the body of many harmful toxins.

scholarly journals Bioactive compounds of 44 traditional and exotic Brazilian fruit pulps: phenolic compounds and antioxidant activity

2018 ◽  
Vol 21 (1) ◽  
pp. 106-118 ◽  
Author(s):  
Ana Paula Stafussa ◽  
Giselle Maria Maciel ◽  
Valéria Rampazzo ◽  
Evandro Bona ◽  
Cleyton Nascimento Makara ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Bioactive Compounds

scholarly journals New Chromone and Triglyceride from Cucumis melo Seeds

2014 ◽  
Vol 9 (2) ◽  
pp. 1934578X1400900
Author(s):  
Sabrin R. M. Ibrahim
Keyword(s):  
Antioxidant Activity ◽  
Cytotoxic Activity ◽  
Cucumis Melo ◽  
Spectral Measurements ◽  
Dpph Assay ◽  
Meoh Extract ◽  
Mass Spectral ◽  
Cucumis Melo L ◽  
First Time

Re-investigation of the MeOH extract of the seeds of Cucumis melo L. var. reticulatus (Cucurbitaceae) led to the isolation of a new chromone derivative (5,7-dihydroxy-2-[2-(3-methoxy-4-hydroxyphenyl)ethyl]chromone (5) and a triglyceride (1,3-di-(6 Z,9 Z)-docosa-6,9-dienoyl-2-(6 Z) hexacos-6-enoylglycerol (1), together with three known compounds; α-spinasterol (2), stigmasta-7,22,25-trien-3-ol (3), and D:B-friedoolean-5-ene-3-β-ol (4), are reported from this species for the first time. Their structures were determined by extensive 1D (1H, 13C, and DEPT) and 2D (1H-1H COSY, HMQC, and HMBC) NMR and mass spectral measurements. Compound 5 displayed significant cytotoxic activity against L5178Y cells, with an ED50 of 5 μM. The MeOH extract and 5 showed antioxidant activity using the DPPH assay.

scholarly journals A comparative study of the phenolic compounds and the in vitro antioxidant activity of different Brazilian teas using multivariate statistical techniques

2014 ◽  
Vol 60 ◽  
pp. 246-254 ◽  
Author(s):  
Acácio Antonio Ferreira Zielinski ◽  
Charles Windson Isidoro Haminiuk ◽  
Aline Alberti ◽  
Alessandro Nogueira ◽  
Ivo Mottin Demiate ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Comparative Study ◽  
Statistical Techniques ◽  
Multivariate Statistical Techniques ◽  
Multivariate Statistical ◽  
In Vitro Antioxidant Activity

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).

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