Oxalate Content of Some Spices and Seasonings of South-Eastern Nigeria

Njoku, V.I.; Obi, Chidiebere; Obodo, G. A.

doi:10.4314/jafs.v4i2.41600

Cited by 10 publications

(12 citation statements)

References 10 publications

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“…The presence of alkaloids in the seed extract could serve as a reason for its use in ethnomedicine [33]. "The content of tannins in P. americana may be responsible for their free astringency and bitter taste" [34]. They hasten the healing of wounds and inflamed mucous membrane [35] hence their use in the treatment of injuries.…”

Section: Discussionmentioning

confidence: 99%

Proximate, Phytochemical and Mineral Composition of Methanol Extract of Persea americana Seed

Umerie¹,

Louis²,

Enoch³

2023

IJBcRR

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This study investigated the proximate composition and evaluated the phytochemicals present in the methanol extract of Persea americana seed. The seed samples were collected, dried, ground into powder, and extracted in methanol by cold maceration. Proximate analysis was carried out using the standard methods of association of official analytical chemists (AOAC) while quantitative phytochemical analysis was done using standard methods. Mineral composition assays were carried out using the standard methods of the American public health association (APHA). Proximate analysis revealed that the seeds of P. americana contain more carbohydrate (32.05±1.21%), fat (25.73±2.01%), and protein (21.00±0.88%) with fewer amounts of moisture (8.98±0.10%), and ash (3.28±0.16%). Quantitative phytochemical analysis revealed the presence of phenols (3.51±0.42 mg/100 g), saponins (0.05±0.38 mg/100g), alkaloid (0.70±0.37 mg/100g), beta-carotene (32.24±0.55 mg/100 g), lycopene (6.84±0.52 mg/100 g), flavonoids (34.14±3.13 mg/ 100 g), phytate (0.00±0.03 mg/100 g), cardiac glycosides (0.37±0.01%), total phytosterol (21.25±0.12 mg/100 g), stigmasterol (13.16±0.15mg/100g) and campesterol (6.16±0.12 mg/100 g). Mineral contents of the sample revealed that potassium, calcium, and magnesium have the highest concentrations while manganese and iron have the lowest. The chemical compositions of the investigated samples might be responsible for their medicinal values in phytomedicine. This study shows that Persea americana seeds are adequate in lowering cholesterol levels probably due to the presence of phytosterols.

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Section: Discussionmentioning

confidence: 99%

Proximate, Phytochemical and Mineral Composition of Methanol Extract of Persea americana Seed

Umerie¹,

Louis²,

Enoch³

2023

IJBcRR

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“…A yellow coloration observed in each extract indicates the presence of flavonoids. The yellow coloration disappears on standing [7].…”

Section: Test For Flavonoidsmentioning

confidence: 97%

Preliminary Phytochemical, Antioxidative and Antibacterial Screening of Selected Medicinal Plants for Possible use in the Treatment of Bacterial Diseases

Chibuzor,

Onyegbule,

Umeokoli

et al. 2024

J. Pharm. Res. Int.

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Development of cheap and reliable diagnostics is pivotal in the control of infectious diseases. Currently, one of the best strategies to tackle infectious disease is the use of natural products from plant origin, due to the perception that long term use of western medicine induces severe complications and also to stop the prevalence of antibacterial infection. This study aims at substantiating the traditional use of selected medicinal plants with antibacterial claim for possible lead for the development of more potent drugs in the treatment of bacterial infections. The preliminary phytochemical content, antioxidant and antibacterial potential of the selected medicinal plants were evaluated using standard procedures. Thirtheen plants were obtained through questionnaire administration: Garcinia kola, Costus afer, Vitellaria paradoxa, Pycnanthus angolensis, Cola acuminata Acanthospermum hipida, Aloe vera, Euadenia trifoliate, Microglossa abzelii, Moringa oleifera, Bryophyllum pinnatum, Baphia nitida and Afromonium melegueta. Thin layer chromatography (TLC) profiling of the various selected plants were carried out using two solvent system consisting of n-Hexane and ethyl acetate in varying ratio (8:2 and 7:3). Eight (8) plants, which showed good chromatographical profiling with the used solvent, were selected for further experiment (Garcinia kola, Vitellaria paradoxa, Acanthospermum hispidum, Aloe vera, Microglossa abzelii, Baphia nitida, Moringa oleifera and Bryophyllum pinnatum). These plants were subjected to qualitative phytochemistry and five plants (Moringa oleifera, Vitellaria paradoxa, Baphia nitida, Bryophyllum pinnatum and Garcinia kola) selected for quantitative phyto-screening for alkaloids, flavonoids, saponins and tannins. The antibacterial screening was carried out using Agar well diffusion and minimum inhibitory concentration (MIC) against the following isolate Staphylococcus aureus, Escherichia coli, Salmonella typhi and Bacillus subtilis. The antioxidant potential of the selected five plants were evaluated using in vitro (DPPH and FRAP) and the best plant was used for in vivo (SOD and MDA) analysis. The phytochemistry of the 13 plants revealed the presence or absence of Alkaloids, saponins, tannins, flavonoids, terpenoids, cardiac glycosides, carbohydrates and protein in the selected plants, and the best five were selected for quantitative evaluation showed they all have good quantity of alkaloids, flavonoids, saponins and tannins. The plants exhibited mild to strong antibacterial activities, having an MIC value ranging from 2.5 to >20 µg/mL when compared to ciprofloxacin (control) that is 5µg/mL. The plants showed good free radical scavenging activities and efficient ferric reducing power in a concentration dependent manner and a good enzyme activity of the superoxide dismutase (SOD) at a concentration of 100 µ/mL with a reduction in malondialdehyde (MDA) production as a marker of lipid peroxidation. The various plants have potentials for development of drugs for the treatment of infectious diseases; and a potential for further evaluation of their antibacterial claim.

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“…The extract contains the highest amount of total flavonoids and phenolics (225.56 and 355.06 mg/g) content, respectively (Table 2). Flavonoids, the potent antioxidants prevent oxidative cell damage by scavenging free radicals [46]. They have been reported to demonstrate pharmacological activities including anticancer, anti-ulcer activities [46].…”

Section: Total Flavonoids and Phenolic Content Of The Grapefruits Aqu...mentioning

confidence: 99%

“…Flavonoids, the potent antioxidants prevent oxidative cell damage by scavenging free radicals [46]. They have been reported to demonstrate pharmacological activities including anticancer, anti-ulcer activities [46]. Phenolics demonstrated many biological and pharmacological activities including antioxidant, antiulcer, anti-inflammatory, antitumour and antidepressant activities [40].…”

Section: Total Flavonoids and Phenolic Content Of The Grapefruits Aqu...mentioning

confidence: 99%

Phytochemicals Screening, Proximate composition and Antioxidants Analysis of Italian Citrus paradisi Fruits

Bandi,

Ibrahim,

Shehu

et al. 2024

J. Trop. Pharm. Chem.

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Citrus paradise is a largely consumed fruit for nutrition and medicinal importance. This study was conducted to evaluate the phytochemicals, proximate, and antioxidants contents of Italian Citrus paradisi fruits. The phytochemicals screening and proximate analysis were performed using the methods of AOAC. Antioxidants contents and capacities of the extract were determined by DPPH and FRAP Assay. The grapefruits aqueous extract revealed the presence of various phytochemicals and contains significant (p < 0.05) amount of carbohydrates (89.36 %), moisture (74.80 %), lipids (4.56 %), protein (3.36 %), crude fiber (2.36 %), and ash content (0.83 %). The extract exhibited significant (p < 0.05) increase in DPPH percentage inhibition of free radical scavenging activity and FRAP properties comparable to that of the standard, ascorbic acid. The grapefruits extract contains various phytochemicals, proximate nutrients, and exhibited free radical scavenging activity. The grapefruits have nutritional status, antioxidant properties, and medicinal importance.

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Oxalate Content of Some Spices and Seasonings of South-Eastern Nigeria

Cited by 10 publications

References 10 publications

Proximate, Phytochemical and Mineral Composition of Methanol Extract of Persea americana Seed

Proximate, Phytochemical and Mineral Composition of Methanol Extract of Persea americana Seed

Preliminary Phytochemical, Antioxidative and Antibacterial Screening of Selected Medicinal Plants for Possible use in the Treatment of Bacterial Diseases

Phytochemicals Screening, Proximate composition and Antioxidants Analysis of Italian Citrus paradisi Fruits

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