Molds in Food Spoilage

Twarużek, Magdalena; Soszczyńska, Ewelina; Kwiatkowska-Giżyńska, Justyna

doi:10.1016/b978-0-12-809633-8.21048-0

Cited by 2 publications

(2 citation statements)

References 50 publications

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“…The spoilage and toxicity of fungi like A. niger happen during food storage and maintenance of food products. Moreover, A. niger produces allergen spores and mycotoxins that seriously threaten human health (Twarużek et al 2020). The cell-free supernatant of the isolates 2M and 13M showed strong activities against S. aureus.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of different bacterial honey isolates as probiotics and their efficient roles in cholesterol reduction

Abdelsamad

Esawy

Mahmoud

et al. 2022

World J Microbiol Biotechnol

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Continue to hypothesize that honey is a storehouse of beneficial bacteria, and the majority of these isolates are levansucrase producers. Accordingly, ten bacterial strains were isolated from different honey sources. Four honey isolates that had the highest levansucrase production and levan yield were identified by the partial sequencing of the 16S rRNA gene as Achromobacter sp. (10A), Bacillus paralicheniformis (2M), Bacillus subtilis (9A), and Bacillus paranthracis (13M). The cytotoxicity of the selected isolates showed negative blood hemolysis. Also, they are sensitive to the tested antibiotics (Amoxicillin + Flucloxacillin, Ampicillin, Gentamicin, Benzathine benzylpenicillin, Epicephin, Vancomycin, Amikacin, and Zinol). The isolates had strong alkaline stability (pHs 9, 11) and were resistant to severe acidic conditions (29–100 percent). The tested isolates recorded complete tolerance to both H2O2 and the bile salt (0.3% Oxgall powder) after 24 h incubation. The cell-free supernatant of the examined strains had antifungal activities against C. Albicans with varying degrees. Also, isolates 2M and 13M showed strong activities against S. aureus. The isolates showed strong adhesion and auto-aggregation capacity. Isolate 10A showed the highest antioxidant activity (91.45%) followed by 2M (47.37%). The isolates recorded different catalase and protease activity. All isolates produced cholesterol oxidase and lipase with different levels. Besides, the four isolates reduced LDL (low-density lipoprotein) to different significant values. The cholesterol-reducing ability varied not only for strains but also for the time of incubation. The previous results recommended these isolates be used safely in solving the LDL problem.

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Section: Discussionmentioning

confidence: 99%

Evaluation of different bacterial honey isolates as probiotics and their efficient roles in cholesterol reduction

Abdelsamad

Esawy

Mahmoud

et al. 2022

World J Microbiol Biotechnol

View full text Add to dashboard Cite

show abstract

“…The spoilage and toxicity of fungi like Aspergillus niger happen during food storage and maintenance of food products. Moreover, A. niger produces allergen spores and mycotoxins that seriously threaten human health (Twarużek et al 2020). The cell-free supernatant of the isolates 2M and 13M showed strong activities against Staphylococcus aureus.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Different Bacterial Honey Isolates As Probiotics And Their Efficient Roles In Cholesterol Reduction

Abdelsamad

Esawy²,

Mahmoud

et al. 2021

Preprint

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Continue to hypothesize that honey is a storehouse of beneficial bacteria and most of these isolates are levansucrase producers. Accordingly, ten bacterial strains were isolated from different honey sources. Four honey isolates that had the highest levansucrase production were identified by the partial sequencing of the 16S rRNA gene as Achromobacter sp. (10A), Bacillus paralicheniformis (2M), Bacillus subtilis (9A), and Bacillus paranthracis (13M). The cytotoxicity of the selected isolates showed negative blood Hemolysis. Also, they are sensitive to the tested antibiotics (Amoxicillin + Flucloxacillin, Ampicilin, Gentamicin and Benzathine benzaylpencillin.). All the isolates exhibited high stability on the alkaline side (pHs 9,11) and could tolerate severe acidic conditions (29-100%). The tested isolates recorded complete tolerance to both H2O2 and the bile salt (0.3 % Oxgall powder) after 24h incubation. The cell-free supernatant of the examined strains had antifungal activities against Candida albicans with varying degrees. Also, isolates 2M and 13M showed strong activities against Staphylococcus aureus. Isolate 10A showed the highest antioxidant activity (91.45%) followed by 2M (47.37%). All isolates produced cholesterol oxidase and lipase with different levels. Besides, the four isolates reduced LDL (low-density lipoprotein) to different significant values. The cholesterol-reducing ability varied not only for strains but also for the time of incubation. The previous results recommended these isolates be used safely in solving the LDL problem.

show abstract

Molds in Food Spoilage

Cited by 2 publications

References 50 publications

Evaluation of different bacterial honey isolates as probiotics and their efficient roles in cholesterol reduction

Evaluation of different bacterial honey isolates as probiotics and their efficient roles in cholesterol reduction

Evaluation of Different Bacterial Honey Isolates As Probiotics And Their Efficient Roles In Cholesterol Reduction

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