Study of Antibacterial Activity of some Date Seed Extracts

Aljazy, Nareman Adeem Shnaa; Al-Mossawi, Aum El-Basher; Al-Rikabi, Ali K.

doi:10.37077/25200860.2019.169

Cited by 8 publications

(6 citation statements)

References 8 publications

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“…This is in accordance with a study done by 25 on the antibacterial effect of date seed extracts and found that S. aureus and E. coli were highly sensitive to extracts. Also, Aljazy et al studied date seed extracts and found IZs 29 against almost all the strains analyzed in our study, but with higher IZs that could be explained by the low solubility of polyphenols in oil 16 . However, only one study was found on the assessment of antibacterial effect of DSO, similarly showing an effect against S. aureus and E. coli 66 .…”

Section: Resultssupporting

confidence: 47%

“…For example, DSO can be applied as a natural ingredient in UV protector formulas for its ability to absorb light in UV range, and as a natural colorant in butter and margarines for its yellow color 28 . Date seed extracts showed an important antibacterial activity against different strains including E. coli , K. pneumoniae , P. mirabilis , P. aeruginosa , S. aureus , Bacillus subtilis , and Streptococcus pyogenes 29 , 30 . In addition, DSO showed an antioxidant activity 31 , a chemopreventive effect 32 , and a photoprotective effect 33 .…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of synergistic/antagonistic antibacterial activities of fatty oils from apricot, date, grape, and black seeds

Joujou,

Darra,

Rajha

et al. 2024

Sci Rep

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The increasing antimicrobial resistance requires continuous investigation of new antimicrobial agents preferably derived from natural sources. New powerful antibacterial agents can be produced by simply combining oils that are known for their antibacterial activities. In this study, apricot seed oil (ASO), date seed oil (DSO), grape seed oil (GSO), and black seed oil (BSO) alone and in binary mixtures were assessed. Fatty acid profiles of individual oils and oil mixtures showed linoleic acid, oleic acid, palmitic acid, stearic acid, and linolenic acid contents. Linoleic acid was the most abundant fatty acid in all samples except for ASO, where oleic acid was the dominant one. GSO showed the highest total phenolic content while ASO showed the lowest one. Antibacterial screening was performed against Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Proteus mirabilis, and Staphylococcus aureus. Results showed antibacterial activity in all oils against tested strains except for ASO against S. aureus. Highest antibacterial activity recorded was for ASO against P. mirabilis. ASO-GSO mixture (AG) was the best mixture where it showed synergistic interactions against all strains except P. aeruginosa. In conclusion, seed oil mixtures are likely to show promising antibacterial activities against specific strains.

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Section: Resultssupporting

confidence: 47%

Section: Introductionmentioning

confidence: 99%

Evaluation of synergistic/antagonistic antibacterial activities of fatty oils from apricot, date, grape, and black seeds

Joujou,

Darra,

Rajha

et al. 2024

Sci Rep

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“…The maximum zone of inhibition was observed against P. aeruginosa (24.70 mm), followed by S. aureus (20 mm), K. pneumonia (18 mm), and E. coli (16.30 mm 71 who found that the aqueous extract of these three varieties showed a weak inhibition against all tested bacteria (6-8 mm).…”

Section: Antibacterial Activity Of Desmentioning

confidence: 97%

Assessment of antioxidant and antibacterial activity of Phoenix dactylifera L. seed extracts: Perspective for the development of new foods

Ouahioune

Bara

Bariz

et al. 2020

Nor. Afr. J. Food Nutr. Res.

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Background: Conventional food additives were associated with potential harm. Palm seeds are an interesting source of high-added value bioactive compounds, regarding their potential use in food industries. Aim: Date seeds extract (DSE) of Algerian Phoenix dactyliefra L. was studied for its phytochemical, antioxidant, and antibacterial activity and to identify its potential uses in foods. Material and methods: A total soluble solid of DSE (°Brix) was determined by refractometry. The total phenolic contents (TPCs) were determined according to the Folin-Cioclateu method and the total flavonoid and flavonols were also estimated with colorimetric method. The DPPH method was used to determine the antioxidant activity of DSE. The IC50 values were also calculated and the antioxidant activity index (AAI) was determined. The agar well diffusion method was employed for the antibacterial activity of the aqueous DSE against various pathogens. Results: Moisture, ash, and fat contents (%) determined were 11.06, 1.33, and 7.06, respectively. The physicochemical analysis of the extract showed a pH value of 4.67, titratable acidity value of 0.64 citric acid/100 g, °Brix value = 3%, sugars values of 0.12, 0.47, and 0.35 g/L for reducing sugar, total sugar, and sucrose, respectively. The determination of phenolic compounds was carried out on three groups, namely total phenols = 229.67 mg GAEq/g, flavonoids = 201.12 mg QEq/g, and flavonols = 173.03 mg QEq/g, respectively. The DSE demonstrates to be effective as an antioxidant “in vitro” and showed a strong antibacterial activity with different inhibition levels, depending on the bacterial strains. Conclusion: The current investigations present knowledge about the possible role of palm industry by-products as a novel perspective for the development of new foods. We suggest that date seeds can be exploited in some food applications utilizing their high levels of bioactive molecules. Keywords: Phoenix dactylifera L., Degla-Baïda, seeds extract, bioactive molecules, biological activity, in vitro, novel perspective.

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“…Depending on how effective this impact is, date seeds may be able to replace or even act as a synergy to help reduce the dosage of the antibiotic prescription. A substantial association was discovered between the amount of polyphenols present in date seeds and their antibacterial properties [ 10 ]. Date seeds have been shown to considerably reduce nucleic acid production in both Gram-positive and Gram-negative bacterial strains; however, greater efficacy was dominant against Gram-positive strains, particularly Staphylococcus aureus [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Phenolic Composition and Biological Activities of Six Aqueous Date (Phoenix dactylifera L.) Seed Extracts Originating from Different Countries: A Comparative Analysis

Swaidan,

Azakir,

Neugart

et al. 2023

Foods

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Date seeds, which are the main by-products of date fruit consumption, were shown to possess promising biological activities and health benefits with minimal human use. The present investigation analyzed and compared the phenolic content of six date seed varieties from four different origins (Khudari, Sakai, and Safawi from Saudi Arabia, Majdool from Jordan, Zahdi from Iraq, and Kabkab from Iran). The aqueous extracts were examined for possible antioxidant, antibacterial, and anti-tumor potential. Date seed oil was extracted, and fatty acid profiles were compared. The results revealed that date seeds are a rich source of polyphenols, which have been linked to biological activities. Furthermore, the phenolic content seemed highly dependent on the variety, where Kabkab had the highest TPC value (271.2 mg GAE/g DM) while Majdool had the lowest value (63.2 mg GAE/g DM). Antioxidant activities of all varieties were highly correlated with the total phenolic content. The antibacterial investigation demonstrated that the Sakai variety possessed the dominant activity, whereas Majdool showed no activity. The results further indicated the sensitivity of both Staphylococcus aureus and Bacillus cereus, with a stronger effect against B. cereus, while no effect was observed against Gram-negative strains (Salmonella Typhi and Escherichia coli). All varieties were able to decrease colon and lung cancer cell viability, especially Khudari and Sakai, with stronger effects against colon cancer cells. Analysis of date seed oil showed high oleic acid content, especially in Sakai. The findings suggest that date seeds are promising candidates for future pharmaceutical applications as nutraceuticals to help combat certain illnesses, as well as functional foods and natural additives that boost the nutritional value of food products, increase their shelf lives, and improve the overall health of consumers.

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Study of Antibacterial Activity of some Date Seed Extracts

Cited by 8 publications

References 8 publications

Evaluation of synergistic/antagonistic antibacterial activities of fatty oils from apricot, date, grape, and black seeds

Evaluation of synergistic/antagonistic antibacterial activities of fatty oils from apricot, date, grape, and black seeds

Assessment of antioxidant and antibacterial activity of Phoenix dactylifera L. seed extracts: Perspective for the development of new foods

Evaluation of the Phenolic Composition and Biological Activities of Six Aqueous Date (Phoenix dactylifera L.) Seed Extracts Originating from Different Countries: A Comparative Analysis

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