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Article ; Online: New strategies for sterilization and preservation of fresh fish skin grafts.

Ibrahim, Ahmed / Fahmy, Hossam M / Mahmoud, Ghada Abd-Elmonsef / Soliman, Mahmoud / Elshahawy, Abdelnaby M

2024 Volume 14, Issue 1, Page(s) 1253

Abstract: The introduction of fish skin as a biological dressing for treating burns and wounds holds great promise, offering an alternative to existing management strategies. However, the risk of disease transmission is a significant concern. Therefore, this study ...

Abstract	The introduction of fish skin as a biological dressing for treating burns and wounds holds great promise, offering an alternative to existing management strategies. However, the risk of disease transmission is a significant concern. Therefore, this study aimed to examine how established sterilization and preservation procedures affected fish skin grafts' microbiological and histological properties for long-term usage. Lyophilization of the fish skin graft followed by rehydration in normal saline for 15 min did not change the collagen content. Furthermore, gamma irradiation of the lyophilized fish skin graft at different lengths 5, 10, and 25 KGy showed a significant reduction in microbial growth (aerobic bacteria, aerobic yeasts, and fungi) at 15- and 30 days after the irradiation. However, exposure to 10 KGy was found to be the most effective intensity among the different gamma irradiation lengths since it preserved the collagen fiber content and intensity in the lyophilized fish skin grafts at 15- and 30 days after the irradiation. These findings provide efficient preservation and sterilization methods for long-term usage of the fresh Tilapia skin grafts used for biological dressings.
MeSH term(s)	Animals ; Skin Transplantation ; Preservation, Biological ; Freeze Drying ; Collagen ; Fishes ; Sterilization/methods ; Ichthyosis, Lamellar
Chemical Substances	Collagen (9007-34-5)
Language	English
Publishing date	2024-01-13
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-024-51608-4
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Article ; Online: Production of kojic acid by Aspergillus flavus OL314748 using box-Behnken statistical design and its antibacterial and anticancer applications using molecular docking technique.

Mahmoud, Ghada Abd-Elmonsef / Abdel Shakor, Abo Bakr / Kamal-Eldin, Nahla A / Zohri, Abdel-Naser A

BMC microbiology

2024 Volume 24, Issue 1, Page(s) 140

Abstract: Kojic acid is a wonderful fungal secondary metabolite that has several applications in the food, medical, and agriculture sectors. Many human diseases become resistant to normal antibiotics and normal treatments. We need to search for alternative ... ...

Abstract	Kojic acid is a wonderful fungal secondary metabolite that has several applications in the food, medical, and agriculture sectors. Many human diseases become resistant to normal antibiotics and normal treatments. We need to search for alternative treatment sources and understand their mode of action. Aspergillus flavus ASU45 (OL314748) was isolated from the caraway rhizosphere as a non-aflatoxin producer and identified genetically using 18S rRNA gene sequencing. After applying the Box-Behnken statistical design to maximize KA production, the production raised from 39.96 to 81.59 g/l utilizing (g/l) glucose 150, yeast extract 5, KH
MeSH term(s)	Aspergillus flavus/drug effects ; Aspergillus flavus/metabolism ; Aspergillus flavus/genetics ; Pyrones/pharmacology ; Pyrones/chemistry ; Pyrones/metabolism ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/chemistry ; Humans ; Molecular Docking Simulation ; Antineoplastic Agents/pharmacology ; Antineoplastic Agents/chemistry ; Microbial Sensitivity Tests ; Cell Line, Tumor ; Bacteria/drug effects ; Bacteria/genetics ; Bacteria/metabolism ; Bacteria/classification
Chemical Substances	Pyrones ; kojic acid (6K23F1TT52) ; Anti-Bacterial Agents ; Antineoplastic Agents
Language	English
Publishing date	2024-04-25
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2041505-9
ISSN	1471-2180 ; 1471-2180
ISSN (online)	1471-2180
ISSN	1471-2180
DOI	10.1186/s12866-024-03289-2
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Article ; Online: The optimal concentration of silver nanoparticles in sterilizing fish skin grafts.

Elshahawy, Abdelnaby M / Mahmoud, Ghada Abd-Elmonsef / Mokhtar, Doaa M / Ibrahim, Ahmed

Scientific reports

2022 Volume 12, Issue 1, Page(s) 19483

Abstract: Collagen integrity should be considered on using a sterilizing agent for fish skin grafts. This study defined the optimal concentration of silver nanoparticles (Ag NPs) for sterilization of fish skin grafts without disrupting collagen content based on ... ...

Abstract	Collagen integrity should be considered on using a sterilizing agent for fish skin grafts. This study defined the optimal concentration of silver nanoparticles (Ag NPs) for sterilization of fish skin grafts without disrupting collagen content based on microbiological and histological evaluation. Strips of tilapia skin (n = 5) were randomly allocated to be immersed in Ag NPs solution at different concentrations of 25, 50, 100, and 250 µg/mL, respectively, for 5 min. The treated skin strips underwent bacteriological and histological evaluation. Yeast and fungi were more sensitive to Ag NPs than bacteria. On increasing the nanoparticles concentration, the total counts of aerobic bacteria decrease giving 933.3 ± 28.67, 601 ± 27.66, 288 ± 16.8, 15 ± 4.08 (CFU/cm
MeSH term(s)	Animals ; Humans ; Anti-Bacterial Agents/pharmacology ; Candida albicans ; Collagen/pharmacology ; Escherichia coli ; Metal Nanoparticles ; Microbial Sensitivity Tests ; Silver/pharmacology ; Skin Transplantation ; Sterilization
Chemical Substances	Anti-Bacterial Agents ; Collagen (9007-34-5) ; Silver (3M4G523W1G)
Language	English
Publishing date	2022-11-14
Publishing country	England
Document type	Journal Article ; Randomized Controlled Trial
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-022-23853-y
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Article ; Online: Nitrogen, Amino Acids, and Carbon as Control Factors of Riboflavin Production by Novosphingobium panipatense-SR3 (MT002778).

Mahmoud, Ghada Abd-Elmonsef / Bashandy, Shymaa Ryhan

Current microbiology

2021 Volume 78, Issue 4, Page(s) 1577–1589

Abstract: By increasing the environmental pollution, crop losses, and side effects of chemically synthesized vitamins; new vitamin sources should be included. Through this study, we introduce novel riboflavin bacterial producer Novosphingobium panipatense-SR3 ( ... ...

Abstract	By increasing the environmental pollution, crop losses, and side effects of chemically synthesized vitamins; new vitamin sources should be included. Through this study, we introduce novel riboflavin bacterial producer Novosphingobium panipatense-SR3 (MT002778) and tested various nutritional factors with interactions effects on the production abilities. Yeast extract, maltose, and glycine were the best nitrogen, carbon, and amino acid sources for enhancing the production, respectively. The interaction between the previous factors with three concentrations of each (+, 0, -) studied statistically using Box-Behnken statistical quadric design 13- run. The perfect interaction increases the production to 497.12 mg/l (predicted 489.45 mg/l) using 30 g/l maltose, 10 g/l yeast extract, and 1 g/l glycine. The F and P- values of the tested model of riboflavin and OD600 indicating significant results with probability ≤ 0.05. Also, the evaluating statistical parameter coefficient (R
MeSH term(s)	Amino Acids ; Carbon ; Nitrogen ; Riboflavin/biosynthesis ; Sphingomonadaceae
Chemical Substances	Amino Acids ; Carbon (7440-44-0) ; Nitrogen (N762921K75) ; Riboflavin (TLM2976OFR)
Language	English
Publishing date	2021-03-06
Publishing country	United States
Document type	Journal Article
ZDB-ID	134238-1
ISSN	1432-0991 ; 0343-8651
ISSN (online)	1432-0991
ISSN	0343-8651
DOI	10.1007/s00284-021-02376-1
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Article: Responses of Pea (

Mahmoud, Ghada Abd-Elmonsef / Abeed, Amany H A / Mostafa, Hassan H A / Abdel Monsef, Omaima

Plants (Basel, Switzerland)

2023 Volume 12, Issue 23

Abstract: The huge development of climatic change highly affects our crop production and soil fertility. Also, the rise in the uncontrolled, excessive use of chemical fertilizers diminishes the soil prosperity and generates pollutants, threatening all ... ...

Abstract	The huge development of climatic change highly affects our crop production and soil fertility. Also, the rise in the uncontrolled, excessive use of chemical fertilizers diminishes the soil prosperity and generates pollutants, threatening all environmental life forms, including us. Replacement of these chemical fertilizers with natural ones is becoming an inevitable environmental strategy. In our study, we evaluated the responses of
Language	English
Publishing date	2023-11-22
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2704341-1
ISSN	2223-7747
ISSN	2223-7747
DOI	10.3390/plants12233931
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Article: Using fermentation waste of ethanol‐producing yeast for bacterial riboflavin production and recycling of spent bacterial mass for enhancing the growth of oily plants

Bashandy, Shymaa Ryhan / Abd‐Alla, Mohamed Hemida / Mahmoud, Ghada Abd‐Elmonsef

Journal of applied microbiology. 2022 Mar., v. 132, no. 3

2022

Abstract: AIM: This study aims to use fermentation waste of ethanol production (solid and liquid) for riboflavin and recycling of bacterial biomass as biofertilizers to enhance the growth of some oily crop plants. METHODS AND RESULTS: Out of 10 yeast isolates from ...

Abstract	AIM: This study aims to use fermentation waste of ethanol production (solid and liquid) for riboflavin and recycling of bacterial biomass as biofertilizers to enhance the growth of some oily crop plants. METHODS AND RESULTS: Out of 10 yeast isolates from fresh milk, Clavispora lusitaniae ASU 33 (MN583181) was able to ferment different concentrations of glucose (2.5%, 5%, 7.5%, 10%, 15% and 20%) into ethanol with high efficiency at 10%. Among seven non‐Lactobacillus bacterial isolates recovered from cheese samples, two bacterial isolates Bacillus subtlis‐SR2 (MT002768) and Novosphingobium panipatense‐SR3 (MT002778) were selected for their high riboflavin production. Different media (control medium, fermentation waste medium and a mixture of the fermentation waste medium and control medium [1:1]) were used for riboflavin production. These media were inoculated by a single or mixture of B. subtlis‐SR2, N. panipatense‐SR3. The addition of the waste medium of ethanol production to the control medium (1:1) had a stimulatory effect on riboflavin production whether inoculated with either a single strain or a mixture of B. subtlis‐SR2 and N. panipatense‐SR3. A mixture of fermentation waste and control media inoculated with N. panipatense produced a high riboflavin yield in comparison with other media. Inoculation of Zea mays and Ocimum basilicum plants with either the bacterial biomass waste of riboflavin production (B. subtlis or N. panipatense) or a mixture of B. subtlis and N. panipatense) shows a stimulatory effect on the plant growth in comparison with control (uninoculated plants). CONCLUSIONS: These results demonstrate the possibility of minimizing the cost of riboflavin and biofertilizer manufacturing via interlinking ethanol and riboflavin with the biofertilizer production technology. SIGNIFICANCE AND IMPACT OF STUDY: This study outlines the methods of evaluating the strength of spent media by applying procedures developed in the vitamin production industries. Furthermore, bacterial biomass waste can act as an environmentally friendly alternative for agrochemicals.
Keywords	Clavispora lusitaniae ; Ocimum basilicum ; Sphingomonas ; Zea mays ; agrochemicals ; bacterial biomass ; biofertilizers ; cheeses ; ethanol ; ethanol production ; fermentation ; glucose ; liquids ; milk ; plant growth ; production technology ; riboflavin ; wastes ; yeasts
Language	English
Dates of publication	2022-03
Size	p. 2020-2033.
Publishing place	John Wiley & Sons, Ltd
Document type	Article
Note	JOURNAL ARTICLE
ZDB-ID	1358023-1
ISSN	1365-2672 ; 1364-5072
ISSN (online)	1365-2672
ISSN	1364-5072
DOI	10.1111/jam.15221
Database	NAL-Catalogue (AGRICOLA)

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Zs.A 259: Show issues

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Article ; Online: Zn(II) and Cd(II) thiosemicarbazones for stimulation/inhibition of kojic acid biosynthesis from Aspergillus flavus and the fungal defense behavior against the metal complexes' excesses.

Mahmoud, Ghada Abd-Elmonsef / Ibrahim, Ahmed B M / Mayer, Peter

Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry

2020 Volume 25, Issue 5, Page(s) 797–809

Abstract: The complexes {[ ... ...

Abstract	The complexes {[ZnL
MeSH term(s)	Antifungal Agents/chemical synthesis ; Antifungal Agents/chemistry ; Antifungal Agents/pharmacology ; Aspergillus flavus/drug effects ; Aspergillus flavus/metabolism ; Cadmium/chemistry ; Cadmium/pharmacology ; Coordination Complexes/chemical synthesis ; Coordination Complexes/chemistry ; Coordination Complexes/pharmacology ; Microbial Sensitivity Tests ; Models, Molecular ; Molecular Structure ; Pyrones/antagonists & inhibitors ; Pyrones/metabolism ; Thiosemicarbazones/chemistry ; Thiosemicarbazones/pharmacology ; Zinc/chemistry ; Zinc/pharmacology
Chemical Substances	Antifungal Agents ; Coordination Complexes ; Pyrones ; Thiosemicarbazones ; Cadmium (00BH33GNGH) ; kojic acid (6K23F1TT52) ; Zinc (J41CSQ7QDS)
Language	English
Publishing date	2020-07-13
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1464026-0
ISSN	1432-1327 ; 0949-8257
ISSN (online)	1432-1327
ISSN	0949-8257
DOI	10.1007/s00775-020-01802-2
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Article ; Online: Correction: A cerium-based MOFzyme with multi-enzyme-like activity for the disruption and inhibition of fungal recolonization.

Abdelhamid, Hani Nasser / Mahmoud, Ghada Abd-Elmonsef / Sharmoukh, Walid

Journal of materials chemistry. B

2020 Volume 8, Issue 33, Page(s) 7557

Abstract: Correction for 'A cerium-based MOFzyme with multi-enzyme-like activity for the disruption and inhibition of fungal recolonization' by Hani Nasser Abdelhamid et al., J. Mater. Chem. B, 2020, DOI: 10.1039/d0tb00894j. ...

Abstract	Correction for 'A cerium-based MOFzyme with multi-enzyme-like activity for the disruption and inhibition of fungal recolonization' by Hani Nasser Abdelhamid et al., J. Mater. Chem. B, 2020, DOI: 10.1039/d0tb00894j.
Language	English
Publishing date	2020-08-17
Publishing country	England
Document type	Published Erratum
ZDB-ID	2702241-9
ISSN	2050-7518 ; 2050-750X
ISSN (online)	2050-7518
ISSN	2050-750X
DOI	10.1039/d0tb90139c
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Article ; Online: A cerium-based MOFzyme with multi-enzyme-like activity for the disruption and inhibition of fungal recolonization.

Abdelhamid, Hani Nasser / Mahmoud, Ghada Abd-Elmonsef / Sharmouk, Walid

Journal of materials chemistry. B

2020 Volume 8, Issue 33, Page(s) 7548–7556

Abstract: A cerium-based metal-organic framework (Ce-MOF, denoted as AU-1) was synthesized using a solvothermal method by employing 4,4',4''-nitrilotribenzoic acid (H3NTB) as the linker and cerium clusters as the metal center. The material was considered as a ... ...

Abstract	A cerium-based metal-organic framework (Ce-MOF, denoted as AU-1) was synthesized using a solvothermal method by employing 4,4',4''-nitrilotribenzoic acid (H3NTB) as the linker and cerium clusters as the metal center. The material was considered as a MOFzyme based on the peroxidase-like activity of Ce-MOF that could eliminate and kill fungi, such as Aspergillus flavus, Aspergillus niger, Aspergillus terreus, Candida albicans, and Rhodotorula glutinis. Ce-MOF showed high antifungal activity against airborne opportunistic human pathogens isolated from the outside of a hospital. The antifungal activity of CeMOF was evaluated using the colony-forming units, dry mass method, soluble proteins, and microscopic imaging. It exhibited an inhibition efficiency of 93.3-99.3% based on the colony-forming unit method. The Ce-MOF caused extensive deformation of the conidiophores, vesicles, and phialides with growth inhibition between 7.55-77.41% (based on the dry mass method). Ce-MOF showed different efficiencies in inhibiting the different fungal species. The biological activity of Ce-MOF was due to its enzymatic activity, such as those of antioxidants, catalase, superoxide dismutase, and peroxidase. Ce-MOF exhibited excellent enzymatic activity towards the fungal cells. Our results may facilitate the design of a MOFzyme system and pave the way for more profound applications of nanozymes.
MeSH term(s)	Biomimetic Materials/chemistry ; Biomimetic Materials/pharmacology ; Cerium/chemistry ; Fungi/cytology ; Fungi/drug effects ; Fungi/growth & development ; Metal-Organic Frameworks/chemistry ; Metal-Organic Frameworks/pharmacology ; Peroxidase/metabolism
Chemical Substances	Metal-Organic Frameworks ; Cerium (30K4522N6T) ; Peroxidase (EC 1.11.1.7)
Language	English
Publishing date	2020-07-27
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2702241-9
ISSN	2050-7518 ; 2050-750X
ISSN (online)	2050-7518
ISSN	2050-750X
DOI	10.1039/d0tb00894j
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Article ; Online: Using fermentation waste of ethanol-producing yeast for bacterial riboflavin production and recycling of spent bacterial mass for enhancing the growth of oily plants.

Bashandy, Shymaa Ryhan / Abd-Alla, Mohamed Hemida / Mahmoud, Ghada Abd-Elmonsef

Journal of applied microbiology

2021 Volume 132, Issue 3, Page(s) 2020–2033

Abstract: Aim: This study aims to use fermentation waste of ethanol production (solid and liquid) for riboflavin and recycling of bacterial biomass as biofertilizers to enhance the growth of some oily crop plants.: Methods and results: Out of 10 yeast isolates ...

Abstract	Aim: This study aims to use fermentation waste of ethanol production (solid and liquid) for riboflavin and recycling of bacterial biomass as biofertilizers to enhance the growth of some oily crop plants. Methods and results: Out of 10 yeast isolates from fresh milk, Clavispora lusitaniae ASU 33 (MN583181) was able to ferment different concentrations of glucose (2.5%, 5%, 7.5%, 10%, 15% and 20%) into ethanol with high efficiency at 10%. Among seven non-Lactobacillus bacterial isolates recovered from cheese samples, two bacterial isolates Bacillus subtlis-SR2 (MT002768) and Novosphingobium panipatense-SR3 (MT002778) were selected for their high riboflavin production. Different media (control medium, fermentation waste medium and a mixture of the fermentation waste medium and control medium [1:1]) were used for riboflavin production. These media were inoculated by a single or mixture of B. subtlis-SR2, N. panipatense-SR3. The addition of the waste medium of ethanol production to the control medium (1:1) had a stimulatory effect on riboflavin production whether inoculated with either a single strain or a mixture of B. subtlis-SR2 and N. panipatense-SR3. A mixture of fermentation waste and control media inoculated with N. panipatense produced a high riboflavin yield in comparison with other media. Inoculation of Zea mays and Ocimum basilicum plants with either the bacterial biomass waste of riboflavin production (B. subtlis or N. panipatense) or a mixture of B. subtlis and N. panipatense) shows a stimulatory effect on the plant growth in comparison with control (uninoculated plants). Conclusions: These results demonstrate the possibility of minimizing the cost of riboflavin and biofertilizer manufacturing via interlinking ethanol and riboflavin with the biofertilizer production technology. Significance and impact of study: This study outlines the methods of evaluating the strength of spent media by applying procedures developed in the vitamin production industries. Furthermore, bacterial biomass waste can act as an environmentally friendly alternative for agrochemicals.
MeSH term(s)	Ethanol ; Fermentation ; Olea ; Riboflavin ; Saccharomyces cerevisiae
Chemical Substances	Ethanol (3K9958V90M) ; Riboflavin (TLM2976OFR)
Language	English
Publishing date	2021-11-03
Publishing country	England
Document type	Journal Article
ZDB-ID	1358023-1
ISSN	1365-2672 ; 1364-5072
ISSN (online)	1365-2672
ISSN	1364-5072
DOI	10.1111/jam.15221
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