scholarly journals Phytochemicals of Conocarpus spp. as a Natural and Safe Source of Phenolic Compounds and Antioxidants

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 1069
Author(s):  
Hanan S. Afifi ◽  
Hassan M. Al Marzooqi ◽  
Mohammad J. Tabbaa ◽  
Ahmed A. Arran
Keyword(s):  
Phenolic Compounds ◽  
Protocatechuic Acid ◽  
Ethanol Concentration ◽  
Sinapic Acid ◽  
Food Additive ◽  
Natural Food ◽  
Coumaric Acid ◽  
Plant Parts ◽  
Conocarpus Erectus ◽  
Different Parts

Optimization of the extraction conditions of polyphenolic compounds for different parts of the Damas species, Conocarpus lancifolius and Conocarpus erectus, grown under UAE conditions was studied. The combination of ethanol concentration (50, 75, and 100%), temperature (45, 55, and 65 °C) and time (1, 2, and 3 h) was used by applying the Response Surface Methodology. The data showed that the extracts (n = 90) contained phenolic compounds, flavonoids, and tannins, and were free of alkaloids. Changing the extraction conditions had a significant effect on the detection of phytosterols, saponins, and glycosides and on the solubility of vanillic acid, p-coumaric acid, sinapic acid, t-ferulic acid, rutin hydrate, protocatechuic acid, quercetin, and flavone. The data reveal that the roots and leaves of C. erectus and the leaves and fruits of C.lancifolius are the most important plant parts from which to extract these compounds. This study draws attention to the unordinary use of Conocarpus spp. as a source of natural food additive.

PHENOLIC COMPOUNDS IN FERNS: I. A SURVEY OF SOME FERNS FOR CINNAMIC ACID AND BENZOIC ACID DERIVATIVES

1967 ◽  
Vol 45 (5) ◽  
pp. 585-593 ◽  
Author(s):  
Bruce A. Bohm ◽  
Rolla M. Tryon
Keyword(s):  
Phenolic Compounds ◽  
Protocatechuic Acid ◽  
Sinapic Acid ◽  
Syringic Acid ◽  
Hydroxybenzoic Acid ◽  
Benzoic Acids ◽  
Coumaric Acid ◽  
Cinnamic Acids ◽  
Benzoic Acid Derivatives ◽  
Dennstaedtia Punctilobula

Forty-six ferns, representing 28 genera and 8 families, were examined for hydroxylated cinnamic acids and benzoic acids. In most plants examined the "basic complement" of cinnamic acids, p-coumaric, caffeic, and ferulic, was present. In these plants p-hydroxybenzoic acid, protocatechuic acid, and vanillic acid were generally also present. Of much more limited distribution were sinapic acid, syringic acid, and o-coumaric acid. Coumarin was shown to be present in Dennstaedtia punctilobula, the only fern tested which possessed this type of compound. The data available from three ferns reported in the literature are also included in this survey; one represents an additional family and one represents an additional genus.An experiment with DL-phenylalanine-1-14C and DL-phenylalanine-3-14C and Cyathea arborea showed the incorporation of label into p-coumaric acid, caffeic acid, and ferulic acid.

scholarly journals Metabolic Analysis of Carotenoids and Phenolic Compounds Found in Green and Purple Kenaf

2020 ◽  
Vol 15 (11) ◽  
pp. 1934578X2097113
Author(s):  
Chang Ha Park ◽  
Soon-Jae Kwon ◽  
Nam Su Kim ◽  
Seung-A Baek ◽  
Hyeon Ji Yeo ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Phenolic Compounds ◽  
Benzoic Acid ◽  
Ferulic Acid ◽  
Total Phenolics ◽  
Hydroxybenzoic Acid ◽  
Coumaric Acid ◽  
Plant Parts ◽  
Β Carotene ◽  
Different Parts

The chemical composition of the different plant parts of green ( Hibiscus cannabinus L. cv. Jangdae) and purple ( H. cannabinus L. cv. Jeokbong) kenaf cultivars were investigated using high-performance liquid chromatography. Ten carotenoid and phenolic compounds were quantified in the different parts of green and purple kenaf. The accumulation of carotenoids and phenolic compounds in the different parts of both cultivars was slightly different. The total carotenoid content in all parts of purple kenaf was higher than that in green kenaf. In particular, lutein, β-carotene, and 9Z-β-carotene were found in all the plant parts of both purple and green kenaf. Most levels of these 3 carotenoids were higher in all parts of the purple cultivar than those found in the green cultivar. According to the detected phenolic compound content, the leaves of the green cultivar contained a higher level of total phenolics, even though the most levels of the individual phenolic compounds were higher in the purple cultivar due to the level of kaempferitrin, a major compound found in kenaf, being much higher than the levels observed for the other phenolic compounds. However, the flowers and stems of the purple cultivar had a higher level of total phenolics. Among the 10 different phenolic compounds, 7 (4-hydroxybenzoic acid, chlorogenic acid, p-coumaric acid, ferulic acid, benzoic acid, rutin, and kaempferol) were present in all the plant parts of both kenaf cultivars. Purple kenaf leaves contain higher levels of 4-hydroxybenzoic acid, chlorogenic acid, and rutin, whereas the purple cultivar flowers have higher levels of p-coumaric acid, ferulic acid, and benzoic acid. This study provides valuable information on the chemical composition of different plant parts of green and purple kenaf cultivars.

scholarly journals The effects of plant density and irrigation on phenolic content in cauliflower 

2017 ◽  
Vol 44 (No. 4) ◽  
pp. 178-185 ◽  
Author(s):  
Alina Kałużewicz ◽  
Jolanta Lisiecka ◽  
Monika Gąsecka ◽  
Włodzimierz Krzesiński ◽  
Tomasz Spiżewski ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Ferulic Acid ◽  
Gallic Acid ◽  
Caffeic Acid ◽  
Phenolic Acids ◽  
Plant Density ◽  
Phenolic Content ◽  
Sinapic Acid ◽  
Dry Weight ◽  
Coumaric Acid

This study was conducted to study the influence of plant density and irrigation on the content of phenolic compounds, i.e., phenolic acids and flavonols in cv. ‘Sevilla’ cauliflower curds. Levels of phenolic acids and flavonols were in the range of 3.0–6.2 mg and 25.4–87.8 mg/100 g of dry weight, respectively, depending on plant density and irrigation. Of the phenolic acids, caffeic acid was detected in the highest amount, followed by p-coumaric acid, sinapic acid, gallic acid, and ferulic acid. Of the two flavonols detected, the levels of quercetin were higher than those of kaempferol. The content of the detected phenolic acids (with the exception of ferulic acid) and both flavonols increased with increasing plant density. Furthermore, the concentration of phenolic compounds (with the exception of ferulic acid) was significantly higher under irrigation.

ESTIMATION OF BIOACTIVE PHENOLIC COMPOUNDS OF ABIES PINDROW AERIAL PARTS USING TLC DENSITOMETRY

INDIAN DRUGS ◽  
2017 ◽  
Vol 54 (04) ◽  
pp. 32-37
Author(s):  
D. Kumar ◽  
S. Kumar ◽  
Keyword(s):  
Phenolic Compounds ◽  
Benzoic Acid ◽  
Gallic Acid ◽  
Protocatechuic Acid ◽  
Coumaric Acid ◽  
Aerial Parts ◽  
Ich Guidelines ◽  
Validation Parameters ◽  
Abies Pindrow ◽  
Solvent Systems

The present investigation was undertaken to estimate contents of bioactive phenolic compounds in A. pindrow aerial parts using TLC densitometry. Maltol, p-coumaric acid, p-hydroxy benzoic acid, protocatechuic acid and gallic acid were resolved in TLC of methanol extract of plant using solvent systems – chloroform:methanol (9.7:0.3; scanned at 276 nm), toluene:diethyl ether (1:1; scanned at 320 nm), chloroform:methanol:glacial acetic acid (19:1:1; scanned at 266 nm), chloroform:methanol:formic acid (9:1:1; scanned at 295 nm) and chloroform:methanol:acetonitrile: formic acid (12:3:3:2; scanned at 292), respectively. The developed methods for estimation of phenolic compounds in plant were validated as per ICH guidelines. The contents of maltol, p-coumaric acid, p-hydroxy benzoic acid, protocatechuic acid and gallic acid in plant were found to be 0.10280±0.00002, 0.00860±0.00000, 0.00780±0.00001, 0.10030±0.00003 and 0.06440±0.00002% w/w, respectively. On the basis of validation parameters, the developed TLC densitometric methods for estimation of phenolic compounds in the plant were found to precise, accurate and specific.

scholarly journals Polyphenol and flavonoid profiles and radical scavenging activity in leafy vegetable Amaranthus gangeticus

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Umakanta Sarker ◽  
Shinya Oba
Keyword(s):  
Phenolic Compounds ◽  
Phenolic Acids ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Sinapic Acid ◽  
Health Benefit ◽  
Leafy Vegetable ◽  
Scavenging Activity ◽  
Coumaric Acid ◽  
Phenolic Profiles

Abstract Background Red amaranth (Amaranthus gangeticus L.) has great diversity in Bangladesh, India, and South East Asia with multipurpose uses. The bright red-violet colored A. gangeticus is a popular and low-cost leafy vegetable in the Asian continent including Bangladesh and India because of attractive leaf color, taste, adequate nutraceuticals, phenolic compounds, and sole source of betalains. The natural colors and phenolic compounds of this species have a significant role in promoting the health-benefit including the scavenging capacity of radicals, the colorant of food products, and play a vital role in the industry of foods. However, phenolic profiles and radical scavenging activity of this species have not been evaluated. Hence, for the first time, four selected advance lines of A. gangeticus were characterized for phenolic profiles, antioxidant constituents, and antioxidant potentiality. Results A. gangeticus genotypes are abundant sources of phenolic profiles and antioxidant constituents with good radical quenching capacity that differed across the genotypes. Twenty-five phenolic acids and flavonoids, such as protocatechuic acid, salicylic acid, gentisic acid, gallic acid, β-resorcylic acid, vanillic acid, p-hydroxybenzoic acid, chlorogenic acid, ellagic acid, syringic acid, ferulic acid, kaempferol, m-coumaric acid, trans-cinnamic acid, quercetin, p-coumaric acid, apigenin, caffeic acid, rutin, sinapic acid, isoquercetin, naringenin, myricetin, catechin, and hyperoside were identified in A. gangeticus accessions. A. gangeticus accessions LS7 and LS9 demonstrated ample phenolic acids, flavonoids, antioxidant constituents, and antioxidant potentiality. It revealed from the correlation study that antioxidant components of A. gangeticus genotypes exhibited good radical scavenging activities. The genotypes LS7 and LS9 could be directly used as phenolic profiles, antioxidant constituents, and antioxidant activity enrich cultivars. Conclusions The identified compounds of phenolic acids and flavonoids in A. gangeticus privilege the comprehensive study of pharmacology. The basic information on phenolic profiles and antioxidant constituents achieved in the present study will provide the scientist’s forum for the scientific assessment of these compounds in A. gangeticus.

Effects of Salinity Stress on Growth and Phenolics of Rice (Oryza sativa L.)

2016 ◽  
Vol 57 ◽  
pp. 1-10 ◽  
Author(s):  
Luong The Minh ◽  
Do Tan Khang ◽  
Pham Thi Thu Ha ◽  
Phung Thi Tuyen ◽  
Truong Ngoc Minh ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Ferulic Acid ◽  
Salinity Stress ◽  
Protocatechuic Acid ◽  
Total Phenolics ◽  
Susceptible Cultivar ◽  
Coumaric Acid ◽  
Rice Varieties ◽  
Stress Changes ◽  
Chemical Contents

This study was conducted to determine the correlation between of salinity stress on growth and phenolic compounds in rice. It was observed that salinity stress caused a significant decrease in shoot lengths, fresh and dry weights of all rice varieties. Under salinity stress, changes of chemical contents also differed among phenolic compounds and rice cultivars. Total phenolics and flavonoids, and contents of vanillin and protocatechuic acid in tolerant varieties were strongly increased, whereas in contrast, they were markedly reduced in the susceptible cultivar. Ferulic acid and p-coumaric acid were detected only in tolerance rice. Vanillin and protocatechuic acid may play a role, but ferulic acid and p-coumaric acid may be much involved in the tolerant mechanism against salinity stress. Ferulic acid and p-coumaric acid and their derivatives are able to be exploited as promising agents to reduce detrimental effects of salinity stress on rice production.

scholarly journals A review of phytochemical and biological studies on Conocarpus erectus (Combretaceae).

2014 ◽  
Vol 1 (1) ◽  
pp. 1 ◽  
Author(s):  
Maryam Bashir ◽  
Muhammad Uzair ◽  
Bashir Ahmad Ch
Keyword(s):  
Antimicrobial Activity ◽  
Phenolic Compounds ◽  
Anticancer Activity ◽  
Biological Activities ◽  
High Antimicrobial Activity ◽  
Evergreen Shrub ◽  
Traditional Uses ◽  
Conocarpus Erectus ◽  
Biological Studies ◽  
Different Parts

Conocarpus erectus is a low branching evergreen shrub or tree with a typical height of up to 40 feet. This plant contains phenols such as flavonoids and tannins as its major constituents. The extract of C. erectus from different parts (leaves, stems, fruits, and flowers) showed high antioxidant, hepatoprotective and anticancer activity due to the presence of phenolic compounds. It has been shown that tannins have high antimicrobial activity than other phenolic compounds. This review is an attempt to cover the pharmacognostic characteristics, traditional uses, phytochemistry and biological activities of the plant

scholarly journals Comparison of phenolic profiles and antioxidant activity of three Ornithogalum L. species

2018 ◽  
Vol 44 (3) ◽  
pp. 299-306
Author(s):  
Gülin Renda ◽  
Arzu Özel ◽  
Emine Akyüz Turumtay ◽  
Burak Barut ◽  
Büşra Korkmaz ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Protocatechuic Acid ◽  
Radical Scavenging ◽  
Coumaric Acid ◽  
Antioxidant Power ◽  
Aerial Parts ◽  
Phenolic Profiles ◽  
Ferric Reducing Antioxidant Power ◽  
First Time

Abstract Background Aboveground parts and bulbs of Ornithogalum species are consumed as food and used in traditional medicine in worldwide. Objective It is aimed to report the antioxidant capacity and phenolic compounds content of Ornithogalum sigmoideum, Ornithogalum orthophyllum and Ornithogalum oligophyllum for the first time. Materials and methods Antioxidant activity of the crude methanol extracts of the aerial parts and the bulbs of the species were determined with 1,1-diphenyl-2-picryl-hydrazyl, superoxide radical scavenging, ferrous ion-chelating effect, phosphomolybdenum-reducing antioxidant power and ferric-reducing antioxidant power assay. The ethylacetate, diethylether and water subextracts from leaf and flower were analyzed to quantify selected phenolic compounds by HPLC-UV. Results Among the six extracts, the methanol extract of the aerial parts of O. orthophyllum contained the highest amount of phenolic compounds (GAE, 11.0 mg/g extract). The aerial parts of O. orthophyllum showed higher DPPH and SOD activities than the other extracts with the SC50 values of 0.39±0.05 mg/mL and 0.44±0.08 mg/mL, respectively. Protocatechuic acid, p-hydroxybenzoic acid, vanillic acid and p-coumaric acid were the most abundant compounds at all the subextracts. Conclusion The antioxidant activity is found to be in accordance with the levels of phenolic content in the extracts.

scholarly journals Phenolic Compounds and Antifungal Activity of Hedera helix L. (Ivy) Flowers and Fruits

2015 ◽  
Vol 43 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Marcel PARVU ◽  
Laurian VLASE ◽  
Alina E. PARVU ◽  
Oana ROSCA-CASIAN ◽  
Ana-Maria GHELDIU ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Antifungal Activity ◽  
Ferulic Acid ◽  
Sinapic Acid ◽  
Coumaric Acid ◽  
Hedera Helix ◽  
Fruit Extract ◽  
Fresh Flower ◽  
Flower Extract

Identification and quantitative analysis of the phenolic compounds from Hedera helix L. (ivy) flower and fruit ethanol extracts by LC/MS, in vitro germination and growth inhibition effects on Aspergillus niger, Botrytis cinerea, Fusarium oxysporum f.sp. tulipae, Penicillium gladioli and Sclerotinia sclerotiorum were performed. In the non-hydrolyzed samples of flower and fruit extracts were determined, in different amounts, five polyphenols (p-coumaric acid, ferulic acid, rutoside, quercetol and kaempferol) while quercitrin was identified only in the ivy flower extract. The hydrolyzed samples of the same ivy extracts indicated four phenolic compounds (p-coumaric acid, ferulic acid, quercetol and kaempferol), in different concentrations, whereas sinapic acid was only detected in the ivy fruit extract. The antifungal activity of the fresh flower extract was stronger than that of the fresh fruit extract and was compared to that of an antimycotic drug.

scholarly journals Oljna pogača navadnega rička (Camelina sativa (L.) Crantz) – neizkoriščeni vir fenolnih spojin

2016 ◽  
Vol 107 (1) ◽  
pp. 243 ◽  
Author(s):  
Petra TERPINC ◽  
Helena ABRAMOVIČ
Keyword(s):  
Phenolic Compounds ◽  
Protocatechuic Acid ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Sinapic Acid ◽  
Reducing Power ◽  
Synthetic Antioxidant ◽  
Potential Applications ◽  
Almost All ◽  
Comprehensive Study

The work includes a comprehensive study of phenolic compounds, their occurrence and identification in the residues after pressing of the oil from camelina seeds of Slovenian origin, i.e. oilcake. In addition, the efficiencies of antioxidant determinations using different methods according to different mechanisms are presented. These data demonstrate that almost all of the phenolic compounds in these seeds remain in the seed oilcake. The following antioxidants were confirmed: sinapine, 4-vinylphenol, 4-vinylguaiacol, 4-vinylsyringol, 4-vinylcatechol, ellagic acid, protocatechuic acid, <em>p</em>-hydroxybenzoic acid, sinapic acid, salicylic acid, catechin, quercetin and quercetin glucoside. The oilcake has high reducing power and radical scavenging activity. Heat treatment of seeds affects the amount of free, soluble and insoluble bound phenolic compounds as well as antioxidant capacity of individual fractions. Potential applications of camelina oilcake in the food industry are further justified by comparisons with other oilcakes and synthetic antioxidant.

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