Antimicrobial activity of the sea star (Astropecten spinulosus) collected from the Egyptian Mediterranean Sea, Alexandria

Ibrahim, Hassan A.H.; Elshaer, Mostafa M.; Elatriby, Dalia E.; Ahmed, Hamdy O.

doi:10.21608/ejabf.2020.86046

Cited by 4 publications

(2 citation statements)

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“…The extraction was carried out with methanol, by soaking the material in the respective solvents (1:10, w/v) on a rotary shaker at 150 rev min 1 at ambient temperature for 96 h. The extract from consecutive soaking was pooled and filtered using filter paper (Whatman no 4). After evaporation of the solvent, the crude extract was re-suspended in 5 mL of methanol and evaporated by air to get a dry mass extract (Ibrahim et al, 2020b).…”

Section: Preparation Of the Crude Extractsmentioning

confidence: 99%

Antimicrobial agents from sea urchin (Diadema setosum) collected from the Red Sea, Egypt

El-Sayed¹,

Elshaer²,

Ibrahim³

et al. 2020

Egypt. J. of Aquatic Biolo. and Fish.

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Section: Preparation Of the Crude Extractsmentioning

confidence: 99%

Antimicrobial agents from sea urchin (Diadema setosum) collected from the Red Sea, Egypt

El-Sayed¹,

Elshaer²,

Ibrahim³

et al. 2020

Egypt. J. of Aquatic Biolo. and Fish.

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“…The sample surfaces were cleaned with sterile water to remove the contaminants, dried at room temperature and subsequently chopped into small pieces and stored in a sterile plastic bag at -20℃ (AH Ibrahim et al 2020) until further use. The dried samples were extracted with ethanol for 5 days, filtered with Whatman's No.…”

Section: Extractionmentioning

confidence: 99%

Chemical Composition, in-vitro Antioxidant, Antibacterial, and Anti-algal Activity of Lakshadweep Feather Star Spp. Comaster Schlegelii and Himerometra Robustipinna

Raj

M.H.²,

Gothandam

et al. 2021

Thalassas

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Crinoids are the least explored class of Echinoderms for their bioactivity. To date, no work has been done to evaluate the pharmacological potential of feather star spp. Comaster schlegelii (SRK1) and Himerometra robustipinna (SRK2). The extracts were tested for antibacterial activity against human pathogens, anti-diabetic potential of the extracts were screened by evaluating the ability of the extract to modulate the enzyme α-amylase, anti-algal and antioxidant activity of the extracts were determined by various assays. Both the extracts showed significant antibacterial activity and also inhibited the growth of microalgae species. Himerometra robustipinna showed potent antioxidant activity in a dose-dependent manner than Comaster schlegelii. Both the extracts displayed a moderate inhibitory effect on α-amylase enzyme. GC-MS analysis confirmed the presence of fatty acids and sterols as the major bioactive compounds which might be attributed to the bioactivities. The results of the present study revealed that crinoids are an incredible source for bioactive compounds with wide pharmacological potential.

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Evaluation of the mineral composition, phytochemical and proximate constituents of three culinary spices in Nigeria: a comparative study

Evuen

Okolie

Apiamu

2022

Sci Rep

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Spices are prolific sources of phytochemicals of pharmaceutical and nutritional importance. They have been employed for centuries in the treatment of various maladies, in cuisines, and as inhibitors of oxidative degradation in foods. On this premise, a comparative assessment of the quantitative mineral composition, phytochemical and proximate constituents of Xylopia aethiopica (fruits), Piper guineense (seeds), and Rhaphiostylis beninensis (roots) was done using standard protocols. Subsequently, methanol extracts of the spices were subjected to Gas Chromatography–Mass Spectrometry (GC–MS) analysis. Mineral analysis of the culinary spices revealed significant differences (p < 0.05) in the spices’ magnesium, zinc, iron, selenium, copper, calcium, manganese, molybdenum, potassium, and sodium contents. In the phytochemical analysis, flavonoids, phenols, and alkaloids (4.04%, 2.92%, 2.23%) predominate in X. aethiopica. Similarly, proximate analysis shows a preponderance of carbohydrates (81.24%) and proteins (4.83%) in R. beninensis and P. guineense respectively. However, values for the selenium (0.25 mg/L), saponin (0.23%), and moisture (0.71%) contents for R. beninensis were the lowest among the three spices. Results from the GC–MS analysis revealed the presence of thirteen, twelve, and thirteen phytoconstituents of X. aethiopica, P. guineense, and R. beninensis respectively. Prominent among them are hydrocarbons, acids, and esters with renowned biological attributes such as antioxidant, antimicrobial and anti-inflammatory. These findings indicate that the spices are notable wellsprings of bioactive components and justify their plethoric applications in Nigeria. Therefore, they could serve as lead compounds in the search for natural ingredients for drugs and nutraceuticals formulation.

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Antimicrobial activity of the sea star (Astropecten spinulosus) collected from the Egyptian Mediterranean Sea, Alexandria

Cited by 4 publications

References 0 publications

Antimicrobial agents from sea urchin (Diadema setosum) collected from the Red Sea, Egypt

Antimicrobial agents from sea urchin (Diadema setosum) collected from the Red Sea, Egypt

Chemical Composition, in-vitro Antioxidant, Antibacterial, and Anti-algal Activity of Lakshadweep Feather Star Spp. Comaster Schlegelii and Himerometra Robustipinna

Evaluation of the mineral composition, phytochemical and proximate constituents of three culinary spices in Nigeria: a comparative study

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