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Al Naggar Y, Taha IM, Taha EKA, Zaghlool A, Nasr A, Nagib A, Elhamamsy SM, Abolaban G, Fahmy A, Hegazy E, Metwaly KH, Zahra AA. Gamma irradiation and ozone application as preservation methods for longer-term storage of bee pollen. Environ Sci Pollut Res Int 2024; 31:25192-25201. [PMID: 38462566 PMCID: PMC11023998 DOI: 10.1007/s11356-024-32801-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 03/03/2024] [Indexed: 03/12/2024]
Abstract
Bee pollen is a healthy product with a good nutritional profile and therapeutic properties. Its high moisture content, however, promotes the growth of bacteria, molds, and yeast during storage commonly result in product degradation. Therefore, the aim of this study is to assess the effectiveness of gamma irradiation (GI) and ozone (OZ) as bee pollen preservation methods for longer storage time, as well as whether they are influenced by pollen species. To do that, GI at a dosage of 2.5, 5.0, and 7.5 kGy was applied at a rate of 0.68 kGy/h and OZ application at a concentration of 0.01, 0.02, and 0.03 g/m3 was applied for one time for 6 h, to Egyptian clover and maize bee pollen, then stored at ambient temperature for 6 months. We then determined the total phenolic content (TPC) and antioxidant activity of treated and non-treated pollen samples at 0, 3, and 6 months of storage. Total bacteria, mold, and yeast count were also evaluated at 0, 2, 4, and 6 months. Statistical analyses revealed that, TPC, antioxidant, and microbial load of both clover and maize pollen samples were significantly (p < 0.05) affected by both treatment and storage time and their interaction. Both methods were extremely effective at preserving the antioxidant properties of pollen samples after 6 months of storage at room temperature. Furthermore, the highest concentrations of both GI and OZ applications completely protected pollen samples from mold and yeast while decreasing bacterial contamination. GI at the highest dose (7.5 KGy) was found to be more effective than other GI doses and OZ application in preserving biologically active compounds and lowering the microbial count of pollen samples for 6 months. As a result, we advise beekeepers to use GI at this dose for longer-term storage.
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Affiliation(s)
- Yahya Al Naggar
- Zoology Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
- Center of Bee Research and its Products, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia.
| | - Ibrahim M Taha
- Department of Food Science and Technology, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - El-Kazafy A Taha
- Department of Economic Entomology, Faculty of Agriculture, Kafr Elsheikh University, Kafr Elsheikh, 33516, Egypt
| | - Ayman Zaghlool
- Department of Food Science and Technology, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Ali Nasr
- Department of Food Science and Technology, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Ashraf Nagib
- Department of Food Science and Technology, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Sam M Elhamamsy
- Department of Biochemistry, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Gomaa Abolaban
- Department of Plant Protection, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Alaa Fahmy
- Chemistry Department, Faculty of Science, Al-Azhar University, Cairo, 11884, Egypt
- Petrochemicals Department, Faculty of Engineering, Pharos University in Alexandria, Alexandria, Egypt
| | - Eslam Hegazy
- Department of Food Irradiation, National Centre for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, 11787, Egypt
| | - Khaled H Metwaly
- Center of Plasma Technology, Al-Azhar University, Cairo, 11884, Egypt
| | - Abdullah A Zahra
- Department of Plant Protection, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
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Sharaf M, Zahra AA, Alharbi M, Mekky AE, Shehata AM, Alkhudhayri A, Ali AM, Al Suhaimi EA, Zakai SA, Al Harthi N, Liu CG. Bee chitosan nanoparticles loaded with apitoxin as a novel approach to eradication of common human bacterial, fungal pathogens and treating cancer. Front Microbiol 2024; 15:1345478. [PMID: 38559346 PMCID: PMC10978808 DOI: 10.3389/fmicb.2024.1345478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 02/08/2024] [Indexed: 04/04/2024] Open
Abstract
Antimicrobial resistance is one of the largest medical challenges because of the rising frequency of opportunistic human microbial infections across the globe. This study aimed to extract chitosan from the exoskeletons of dead bees and load it with bee venom (commercially available as Apitoxin [Api]). Then, the ionotropic gelation method would be used to form nanoparticles that could be a novel drug-delivery system that might eradicate eight common human pathogens (i.e., two fungal and six bacteria strains). It might also be used to treat the human colon cancer cell line (Caco2 ATCC ATP-37) and human liver cancer cell line (HepG2ATCC HB-8065) cancer cell lines. The x-ray diffraction (XRD), Fourier transform infrared (FTIR), and dynamic light scattering (DLS) properties, ζ-potentials, and surface appearances of the nanoparticles were evaluated by transmission electron microscopy (TEM). FTIR and XRD validated that the Api was successfully encapsulated in the chitosan nanoparticles (ChB NPs). According to the TEM, the ChB NPs and the ChB NPs loaded with Apitoxin (Api@ChB NPs) had a spherical shape and uniform size distribution, with non-aggregation, for an average size of approximately 182 and 274 ± 3.8 nm, respectively, and their Zeta potential values were 37.8 ± 1.2 mV and - 10.9 mV, respectively. The Api@ChB NPs had the greatest inhibitory effect against all tested strains compared with the ChB NPs and Api alone. The minimum inhibitory concentrations (MICs) of the Api, ChB NPs, and Api@ChB NPs were evaluated against the offer mentioned colony forming units (CFU/mL), and their lowest MIC values were 30, 25, and 12.5 μg mL-1, respectively, against Enterococcus faecalis. Identifiable morphological features of apoptosis were observed by 3 T3 Phototox software after Api@ChB NPs had been used to treat the normal Vero ATCC CCL-81, Caco2 ATCC ATP-37, and HepG2 ATCC HB-8065 cancer cell lines for 24 h. The morphological changes were clear in a concentration-dependent manner, and the ability of the cells was 250 to 500 μg mL-1. These results revealed that Api@ChB NPs may be a promising natural nanotreatment for common human pathogens.
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Affiliation(s)
- Mohamed Sharaf
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, China
- Department of Biochemistry, Faculty of Agriculture, AL-Azhar University, Cairo, Egypt
| | - Abdullah A. Zahra
- Department of Plant Protection, Faculty of Agriculture, AL-Azhar University, Cairo, Egypt
| | - Maha Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Alsayed E. Mekky
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Abdelrazeq M. Shehata
- Department of Animal Production, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
| | - Abdulsalam Alkhudhayri
- Department of Biology, College of Sciences, University of Hafr Al Batin, Hafar Al Batin, Saudi Arabia
| | - Ahmed M. Ali
- Department of Biology, Shaqra University, Shaqra, Saudi Arabia
| | - Ebtesam A. Al Suhaimi
- Vice Presidency for Scientific Research and Innovation, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
- King Abdulaziz and his Companions Foundation for Giftedness and Creativity “Mawhiba”, Riyadh, Saudi Arabia
| | - Shadi A. Zakai
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Norah Al Harthi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
| | - Chen-Guang Liu
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, China
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