1
|
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.
Collapse
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
| |
Collapse
|
2
|
Jafari A, Mirzaei Y, Mer AH, Rezaei-Tavirani M, Jafari Z, Niknejad H. Comparison of the effects of preservation methods on structural, biological, and mechanical properties of the human amniotic membrane for medical applications. Cell Tissue Bank 2024; 25:305-323. [PMID: 37840108 DOI: 10.1007/s10561-023-10114-z] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 09/20/2023] [Indexed: 10/17/2023]
Abstract
Amniotic membrane (AM), the innermost layer of the placenta, is an exceptionally effective biomaterial with divers applications in clinical medicine. It possesses various biological functions, including scar reduction, anti-inflammatory properties, support for epithelialization, as well as anti-microbial, anti-fibrotic and angio-modulatory effects. Furthermore, its abundant availability, cost-effectiveness, and ethical acceptability make it a compelling biomaterial in the field of medicine. Given the potential unavailability of fresh tissue when needed, the preservation of AM is crucial to ensure a readily accessible and continuous supply for clinical use. However, preserving the properties of AM presents a significant challenge. Therefore, the establishment of standardized protocols for the collection and preservation of AM is vital to ensure optimal tissue quality and enhance patient safety. Various preservation methods, such as cryopreservation, lyophilization, and air-drying, have been employed over the years. However, identifying a preservation method that effectively safeguards AM properties remains an ongoing endeavor. This article aims to review and discuss different sterilization and preservation procedures for AM, as well as their impacts on its histological, physical, and biochemical characteristics.
Collapse
Affiliation(s)
- Ameneh Jafari
- Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yousef Mirzaei
- Department of Medical Biochemical Analysis, Cihan University-Erbil, Erbil, Kurdistan Region, Iraq
| | - Ali Hussein Mer
- Department of Nusring, Mergasour Technical Institute, Erbil Polytechnic University, Erbil, Iraq
| | | | - Zahra Jafari
- 9th Dey Manzariye Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hassan Niknejad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
3
|
Gurdal M, Korkmaz I, Barut Selver O. An important detail that is still not clear in amniotic membrane applications: How do we store the amniotic membrane best? Cell Tissue Bank 2024; 25:339-347. [PMID: 38191687 DOI: 10.1007/s10561-023-10121-0] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 11/30/2023] [Indexed: 01/10/2024]
Abstract
The use of fresh amniotic membrane (AM) is not a viable option, as it has many disadvantages. Preserving the AM reduces the risk of cross-infection and maintains its effectiveness for a long time. In order to maximize the therapeutic effects of the AM, the basic need is to preserve its vitality and the bioactive molecules it contains. However, the effect of preservation procedures on cell viability and growth factors is a still matter of debate. Optimum preservation method is expected to be cost-effective, easily-accessible, and most importantly, to preserve the effectiveness of the tissue for the longest time. However, each preservation technique has its advantages and disadvantages over the other, and each one compromises the vitality and bioactive molecules of the tissue to some extent. Therefore, the best method of preservation is still controversial, and the question of 'how to preserve the AM best?' has not yet been definitively answered.
Collapse
Affiliation(s)
- Mehmet Gurdal
- Limbustem R&D Medical Products Ltd., Izmir, Turkey
- Ocular Surface Research Laboratory, Ege University, Izmir, Turkey
| | - Ilayda Korkmaz
- Department of Ophthalmology, Faculty of Medicine, Ege University, 35040, Bornova, Izmir, Turkey
| | - Ozlem Barut Selver
- Limbustem R&D Medical Products Ltd., Izmir, Turkey.
- Ocular Surface Research Laboratory, Ege University, Izmir, Turkey.
- Department of Ophthalmology, Faculty of Medicine, Ege University, 35040, Bornova, Izmir, Turkey.
| |
Collapse
|
4
|
Ayala-Zermeño MA, Padilla AMB, Márquez CFR, López GJL, Muñiz-Paredes F, Montesinos-Matías R, González JAS. Long-term preservation and genetic stability of entomopathogenic fungal species. J Microbiol Methods 2023; 208:106711. [PMID: 37015312 DOI: 10.1016/j.mimet.2023.106711] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/28/2023] [Accepted: 03/29/2023] [Indexed: 04/06/2023]
Abstract
Entomopathogenic fungi (EPF) preservation aims to maintain valuable characteristics. Growth, conidiation and genetic stability of eight species of EPF were evaluated in six preservation methods for up to 8.2 years. Cryopreservation at -196 °C, freeze-drying, and ultra-freezing at -70 °C resulted as the best methods for long-term storage.
Collapse
Affiliation(s)
- Miguel Angel Ayala-Zermeño
- Departamento de Control Biológico, CNRF-DGSV-SENASICA-SADER. Km 1.5 Carretera Tecomán-Estación FFCC, Col. Tepeyac C.P. 28110, Tecomán, Colima, Mexico
| | - Angélica María Berlanga Padilla
- Departamento de Control Biológico, CNRF-DGSV-SENASICA-SADER. Km 1.5 Carretera Tecomán-Estación FFCC, Col. Tepeyac C.P. 28110, Tecomán, Colima, Mexico
| | - Carlos Fernando Regla Márquez
- Departamento de Control Biológico, CNRF-DGSV-SENASICA-SADER. Km 1.5 Carretera Tecomán-Estación FFCC, Col. Tepeyac C.P. 28110, Tecomán, Colima, Mexico
| | - Gisela Jared Lino López
- Departamento de Control Biológico, CNRF-DGSV-SENASICA-SADER. Km 1.5 Carretera Tecomán-Estación FFCC, Col. Tepeyac C.P. 28110, Tecomán, Colima, Mexico
| | - Facundo Muñiz-Paredes
- Departamento de Control Biológico, CNRF-DGSV-SENASICA-SADER. Km 1.5 Carretera Tecomán-Estación FFCC, Col. Tepeyac C.P. 28110, Tecomán, Colima, Mexico
| | - Roberto Montesinos-Matías
- Departamento de Control Biológico, CNRF-DGSV-SENASICA-SADER. Km 1.5 Carretera Tecomán-Estación FFCC, Col. Tepeyac C.P. 28110, Tecomán, Colima, Mexico.
| | - Jorge Antonio Sánchez González
- Departamento de Control Biológico, CNRF-DGSV-SENASICA-SADER. Km 1.5 Carretera Tecomán-Estación FFCC, Col. Tepeyac C.P. 28110, Tecomán, Colima, Mexico
| |
Collapse
|
5
|
Abstract
Previous writings in the area of natural history casting are exiguous especially in reference to the casting of fluid preserved specimens. The following attempts to recognize the importance of casts as natural history specimens and determine why this method of preservation might be used. This piece goes on to instruct the reader how to create their own casts using a simple method and materials which are readily available to all.
Collapse
|
6
|
Hildonen M, Kodama M, Puetz LC, Gilbert MTP, Limborg MT. A comparison of storage methods for gut microbiome studies in teleosts: Insights from rainbow trout (Oncorhynchus mykiss). J Microbiol Methods 2019; 160:42-48. [PMID: 30885689 DOI: 10.1016/j.mimet.2019.03.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 03/12/2019] [Indexed: 12/30/2022]
Abstract
Immediate freezing is perhaps the most preferred method used for preserving gut microbial samples, but research on sample preservation has been principally based around samples from mammalian species, and little is known about the advantages or disadvantages relating to different storage methods for fish guts. Fish gut samples may pose additional challenges due to the different chemical and enzymatic profile, as well as the higher water content, which might affect the yield and purity of DNA recovered. To explore this, we took gut content and mucosal scrape samples from 10 rainbow trout (Oncorhynchus mykiss), and tested whether different preservation methods have any effect on the ability to construct high quality genomic libraries for shotgun and 16S rRNA gene sequencing. Four different storage methods were compared for the gut content samples (immediate freezing on dry ice, 96% ethanol, RNAlater and DNA/RNA shield), while two different methods were compared for mucosal scrape samples (96% ethanol and RNAlater). The samples were thereafter stored at -80 °C. Our findings concluded that 96% ethanol outperforms the other storage methods when considering DNA quantity, quality, cost and labor. Ethanol works consistently well for both gut content and mucosal scrape samples, and enables construction of DNA sequencing libraries of sufficient quantity and with a fragment length distribution suitable for shotgun sequencing. Two main conclusions from our study are i) sample storage optimisation is an important part of establishing a microbiome research program in a new species or sample type system, and ii) 96% ethanol is the preferred method for storing rainbow trout gut content and mucosal scrape samples.
Collapse
Affiliation(s)
- Mathis Hildonen
- National History Museum of Denmark, University of Copenhagen, DK-1350 Copenhagen, Denmark
| | - Miyako Kodama
- National History Museum of Denmark, University of Copenhagen, DK-1350 Copenhagen, Denmark
| | - Lara C Puetz
- National History Museum of Denmark, University of Copenhagen, DK-1350 Copenhagen, Denmark
| | - M Thomas P Gilbert
- National History Museum of Denmark, University of Copenhagen, DK-1350 Copenhagen, Denmark
| | - Morten T Limborg
- National History Museum of Denmark, University of Copenhagen, DK-1350 Copenhagen, Denmark.
| |
Collapse
|
7
|
Wang X, Li L, Zhao J, Li F, Guo W, Chen X. Effects of different preservation methods on inter simple sequence repeat (ISSR) and random amplified polymorphic DNA (RAPD) molecular markers in botanic samples. C R Biol 2017; 340:204-213. [PMID: 28372927 DOI: 10.1016/j.crvi.2017.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 02/24/2017] [Accepted: 03/03/2017] [Indexed: 10/19/2022]
Abstract
To evaluate the effects of different preservation methods (stored in a -20°C ice chest, preserved in liquid nitrogen and dried in silica gel) on inter simple sequence repeat (ISSR) or random amplified polymorphic DNA (RAPD) analyses in various botanical specimens (including broad-leaved plants, needle-leaved plants and succulent plants) for different times (three weeks and three years), we used a statistical analysis based on the number of bands, genetic index and cluster analysis. The results demonstrate that methods used to preserve samples can provide sufficient amounts of genomic DNA for ISSR and RAPD analyses; however, the effect of different preservation methods on these analyses vary significantly, and the preservation time has little effect on these analyses. Our results provide a reference for researchers to select the most suitable preservation method depending on their study subject for the analysis of molecular markers based on genomic DNA.
Collapse
Affiliation(s)
- Xiaolong Wang
- National & Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation, Jilin University, Changchun, Jilin Province 130012, People's Republic of China; School of Life Sciences, Jilin University, Changchun, Jilin Province 130012, People's Republic of China
| | - Lin Li
- National & Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation, Jilin University, Changchun, Jilin Province 130012, People's Republic of China; School of Life Sciences, Jilin University, Changchun, Jilin Province 130012, People's Republic of China
| | - Jiaxin Zhao
- National & Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation, Jilin University, Changchun, Jilin Province 130012, People's Republic of China; School of Life Sciences, Jilin University, Changchun, Jilin Province 130012, People's Republic of China
| | - Fangliang Li
- National & Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation, Jilin University, Changchun, Jilin Province 130012, People's Republic of China; Liaoning Technical University College of Science, Fuxin, Liaoning Province 123000, People's Republic of China
| | - Wei Guo
- Changbai Mountain Academy of Sciences, Erdao, Antu, Jilin Province 133613, People's Republic of China
| | - Xia Chen
- National & Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation, Jilin University, Changchun, Jilin Province 130012, People's Republic of China; School of Life Sciences, Jilin University, Changchun, Jilin Province 130012, People's Republic of China.
| |
Collapse
|
8
|
Karabıçak N, Karatuna O, Akyar I. Evaluation of the Viabilities and Stabilities of Pathogenic Mold and Yeast Species Using Three Different Preservation Methods Over a 12-Year Period Along with a Review of Published Reports. Mycopathologia 2016; 181:415-24. [PMID: 26864747 DOI: 10.1007/s11046-016-9985-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 01/22/2016] [Indexed: 10/22/2022]
Abstract
Serious mycological work requires a reliable source of cultures that are maintained under safe long-term storage. In this study, 1186 clinical fungal isolates consisting of molds (20 species in 11 genera) and yeasts (21 species in seven genera) maintained in water, under mineral oil at room temperature and cryopreserved at -80 °C for periods ranging from 1 to 12 years, were evaluated for their viabilities and stabilities. The strains were subcultured onto either Sabouraud dextrose agar or potato dextrose agar to determine the viabilities and purities. The stabilities of the dermatophytes were investigated using urease test medium, the Trichophyton agar test and morphological examination. The stabilities of yeasts were evaluated by microscopic morphology and by determining the antifungal susceptibilities of random samples of yeasts (n = 120). Additionally, 365 strains (dermatophytes, n = 115; yeasts, n = 250) were further characterized by "matrix-assisted laser desorption/ionization time-of-flight mass spectrometry." After 12 years of preservation, the survival rates with the three different preservation techniques, i.e., in water, under mineral oil and by freezing, were assessed as 94.7, 82.0 and 97.4 %, respectively. Viability was generally unrelated to the duration of storage. More stable and consistent growth was achieved after storage in water and freezing compared with mineral oil preservation. Our results demonstrate that the procedure for maintaining fungal cultures in water is a simple and inexpensive method, next to cryopreservation, and that both can be reliably used for the long-term preservation of most fungal isolates.
Collapse
|
9
|
Homayouni A, Azizi A, Keshtiban AK, Amini A, Eslami A. Date canning: a new approach for the long time preservation of date. J Food Sci Technol 2015; 52:1872-80. [PMID: 25829568 PMCID: PMC4375222 DOI: 10.1007/s13197-014-1291-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/28/2014] [Accepted: 02/10/2014] [Indexed: 10/25/2022]
Abstract
Dramatic growth in date (Phoenix dactylifera L.) production, makes it clear to apply proper methods to preserve this nutritious fruit for a long time. Numerous methods have been used to gain this goal in recent years that can be classified into non-thermal (fumigation, ozonation, irradiation, and packaging) and thermal (heat treatment, cold storage, dehydration, jam etc.) processing methods. In this paper these methods were reviewed and novel methods for date preservation were presented.
Collapse
Affiliation(s)
- Aziz Homayouni
- />Department of Food Science and Technology, Faculty of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aslan Azizi
- />Department of Food Engineering, Ministry of Jihad Agriculture, Karaj, Iran
| | - Ata Khodavirdivand Keshtiban
- />Department of Food Science and Technology, Faculty of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
- />Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Amini
- />Department of Food Science and Technology, Faculty of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahad Eslami
- />Tabriz Health Center, Segatoleslam Ave., Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|