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Nezamdoost-Sani N, Khaledabad MA, Amiri S, Phimolsiripol Y, Mousavi Khaneghah A. A comprehensive review on the utilization of biopolymer hydrogels to encapsulate and protect probiotics in foods. Int J Biol Macromol 2024; 254:127907. [PMID: 37935287 DOI: 10.1016/j.ijbiomac.2023.127907] [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: 04/24/2023] [Revised: 08/25/2023] [Accepted: 11/03/2023] [Indexed: 11/09/2023]
Abstract
Probiotics must survive in foods and passage through the human mouth, stomach, and small intestine to reach the colon in a viable state and exhibit their beneficial health effects. Probiotic viability can be improved by encapsulating them inside hydrogel-based delivery systems. These systems typically comprise a 3D network of cross-linked polymers that retain large amounts of water within their pores. This study discussed the stability of probiotics and morphology of hydrogel beads after encapsulation, encapsulation efficiency, utilization of natural polymers, and encapsulation mechanisms. Examples of the application of these hydrogel-based delivery systems are then given. These studies show that encapsulation of probiotics in hydrogels can improve their viability, provide favorable conditions in the food matrix, and control their release for efficient colonization in the large intestine. Finally, we highlight areas where future research is required, such as the large-scale production of encapsulated probiotics and the in vivo testing of their efficacy using animal and human studies.
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Affiliation(s)
- Narmin Nezamdoost-Sani
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
| | | | - Saber Amiri
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran.
| | | | - Amin Mousavi Khaneghah
- Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand; Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology, Department of Fruit and Vegetable Product Technology, Warsaw, Poland.
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Taheriazam A, Baghbani S, Malakooti M, Jahanshahi F, Allahyari M, Dindar Mehrabani A, Amiri S. Neuromonitoring in pre-post and intraoperative total hip replacement surgery in type 4 high-riding developmental dysplasia of the hip. Eur Rev Med Pharmacol Sci 2024; 28:98-106. [PMID: 38235862 DOI: 10.26355/eurrev_202401_34895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
OBJECTIVE The choice approach to treating congenital dislocation of the hip joint is total hip replacement (THR). One of the severe but uncommon complications of THR is nerve damage. The most common nerve injury associated with total hip arthroplasty (THA) is sciatic nerve palsy, and the second typical nerve damage with THA is femoral nerve paralysis. PATIENTS AND METHODS In this prospective cohort study, 35 patients with type 4 high riding developmental dysplasia of the hip (DDH) who were candidates for THA were enrolled. The somatosensory evoked potential (SSEP), motor evoked potential (MEP), and electromyography (EMG) were measured pre-post and intraoperatively to check the status of the sciatic and femoral nerves. After collecting the mentioned information, the data was analyzed by SPSS V. 26 software. RESULTS Out of 35 patients with DDH type 4 who were candidates for THR, nine patients showed a 50 percent decrease in SSEP amplitude, and six patients showed a 10 percent decrease in SSEP latency. One patient during and two patients after the surgery showed more than an 80 percent decrease in MEP amplitude. Meanwhile, 14 patients showed abnormal spikes during and two patients after surgery regarding EMG. All patients with disturbed neurophysiological findings reverted to normal in the further investigation during follow-up. No correlation was found between increasing limb shortness and these modalities. CONCLUSIONS Using neuromonitoring techniques during Total Hip Arthroplasty (THA) can help identify potential early nerve damage, prevent post-surgical complications, and improve high-riding DDH patient outcomes.
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Affiliation(s)
- A Taheriazam
- Department of Orthopedics, School of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
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Alizadeh S, Pirsa S, Amiri S. Development of a colorimetric sensor based on nanofiber cellulose film modified with ninhydrin to measure the formalin index of fruit juice. Int J Biol Macromol 2023; 253:127035. [PMID: 37742890 DOI: 10.1016/j.ijbiomac.2023.127035] [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: 08/25/2023] [Revised: 09/12/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023]
Abstract
In this research, a color sensor based on nanofiber cellulose film modified with ninhydrin was designed to measure amino acids and formalin index in fruit juice. For this purpose, three types of cellulose films with porosity of 5, 30 and 125 μm were used. These films were treated with standard solution of ninhydrin. The characteristics of modified films were investigated using Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM) and X-ray Diffraction (XRD) tests. The color factors of the sensors (a and b) changed in the presence of amino acids and juice with different levels of formalin index. Therefore, the modified films with ninhydrin as a colorimetric sensor were calibrated using 7 types of amino acids and based on the formalin index of 4 types of juice. Then the sensors were used to measure the formalin index in 4 types of juice. The results showed that the sensors have relative selectivity towards methionine amino acid. The formalin index values calculated in the juices by the sensor were compared with the titration method as a reference method. All three types of sensors were able to detect formalin index. The results of the sensor performance verification showed that the sensors can measure formalin index in different juices with 95-98 % accuracy. These sensors showed fast sensitivity and selectivity to the amino acids in juice, also these sensors are safe and the measurement method is fast and simple.
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Affiliation(s)
- Samira Alizadeh
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Sajad Pirsa
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran.
| | - Saber Amiri
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
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Amiri S, Puillet L, Huau C, Fassier T, Rupp R, Friggens NC. Analysis of reproduction success, growth and milk trajectories and response to nutritional challenge in two Alpine goat lines selected on divergent longevity. Animal 2023; 17:101004. [PMID: 37944363 DOI: 10.1016/j.animal.2023.101004] [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: 12/23/2022] [Revised: 09/20/2023] [Accepted: 09/28/2023] [Indexed: 11/12/2023] Open
Abstract
This study aims to investigate whether the variation in reproduction success, growth, and milk trajectories is associated with different adaptive strategies in the short term (response to an acute nutritional challenge), using two Alpine goat lines. A total of 382 Alpine goats (179 low longevity (low_LGV) and 203 high longevity (high_LGV)), selected for divergent functional longevity from a commercial population, were monitored for 4 years and recorded for BW, reproduction and milking performance. Every year, an average of fifty primiparous goats were exposed to a 2-d nutritional challenge in early lactation. A polynomial model was used to analyse the lifetime trajectory of lactation and BW. A piecewise model was used to analyse the individual milk yield and responses of milk components to the nutritional challenges. The statistical analysis revealed that the two lines had a similar performance for total milk yield in the first lactation, BW at birth and at first kidding, litter size and weight, kidding interval and interval from the first insemination to conception. BW trajectories revealed that low_LGV goats had a greater BW in pregnancy but then lost more weight in early lactation compared to high_LGV goats, which showed a greater BW after kidding. Milk trajectories showed that the high_LGV goats had a higher initial milk yield, an earlier but less marked lactation peak and more persistency in milk production in late lactation than low_LGV goats. Except for milk protein content, quite similar response and recovery profiles of milk yield and milk fat content were observed during the challenge for both lines. The response to the challenge was positively correlated to the initial level of milk production in early lactation but negatively correlated with milk production decline after the peak. This finding suggests that the low_LGV goats were more adapted to allocate resources to meet an expected physiological change such as gestation and lactation. However, high_LGV goats allocate more than low_LGV goats for structural mass and may better cope with an unexpected environmental change such as nutritional deficit.
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Affiliation(s)
- S Amiri
- UMR 0791 Modélisation Systémique Appliquée aux Ruminants, INRAE, AgroParisTech, Université Paris-Saclay, 75005 Paris, France
| | - L Puillet
- UMR 0791 Modélisation Systémique Appliquée aux Ruminants, INRAE, AgroParisTech, Université Paris-Saclay, 75005 Paris, France
| | - C Huau
- GenPhySE, Université de Toulouse, INRAE, INPT, ENVT, Castanet Tolosan, France
| | - T Fassier
- UE P3R Bourges, domaine de Bourges, INRAE, Osmoy F-31326, France
| | - R Rupp
- GenPhySE, Université de Toulouse, INRAE, INPT, ENVT, Castanet Tolosan, France.
| | - N C Friggens
- UMR 0791 Modélisation Systémique Appliquée aux Ruminants, INRAE, AgroParisTech, Université Paris-Saclay, 75005 Paris, France
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Farajinejad Z, Mohtarami F, Pirouzifard M, Amiri S, Hamishehkar H. In situ produced exopolysaccharides by Bacillus coagulansIBRC-M 10807 and its effects on properties of whole wheat sourdough. Food Sci Nutr 2023; 11:7000-7012. [PMID: 37970414 PMCID: PMC10630829 DOI: 10.1002/fsn3.3624] [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: 12/27/2022] [Revised: 07/23/2023] [Accepted: 07/27/2023] [Indexed: 11/17/2023] Open
Abstract
This study aimed to investigate in situ exopolysaccharides (EPSs) production by Bacillus coagulans IBRC-M 10807 under different fermentation conditions to improve the technical-functional properties of whole wheat flour sourdough and obtain high-quality products. For this purpose, the effectiveness of four efficient factors including B. coagulans (8 Log CFU/g), FOS (0%, 2.5%, and 5% based on flour weight), fermentation temperature (30, 35, and 40°C), and fermentation time (12, 18, and 24 h) was investigated on the production of functional sourdough. Our work focused on optimizing probiotic sourdough by investigating probiotic viability, pH, total titratable acidity, antioxidant properties, and EPS measurement. The first optimal formulation for maximized production of the in situ EPSs by the numerical optimization included FOS 0%, B. coagulans IBRC-M 10807 8 Log CFU/g, fermentation temperature of 30°C, and fermentation time of 12 h. In this case, EPSs was 59.28 mg/g and probiotic was 10.99 Log CFU/g. The second optimal formula by considering the highest viability of probiotic together with EPS production was determined as FOS 4.71%, B. coagulans IBRC-M 10807, 8 Log CFU/g, fermentation temperature of 30°C, and fermentation time of 20 h. The predicted amount of the EPSs and probiotic viability via the second formulation were 54.4 mg/g and 11.18 Log CFU/g, respectively. Analyses of optimal sourdough using FTIR, SEM, and DSC revealed that FOS and probiotics significantly reduced the enthalpy of amylopectin retrogradation and delayed it compared to other samples. Therefore, improving the final product's technological capabilities and shelf life can be credited with potential benefits.
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Affiliation(s)
- Zahra Farajinejad
- Department of Food Science and Technology, Faculty of AgricultureUrmia UniversityUrmiaIran
| | - Forogh Mohtarami
- Department of Food Science and Technology, Faculty of AgricultureUrmia UniversityUrmiaIran
| | - Mirkhalil Pirouzifard
- Department of Food Science and Technology, Faculty of AgricultureUrmia UniversityUrmiaIran
| | - Saber Amiri
- Department of Food Science and Technology, Faculty of AgricultureUrmia UniversityUrmiaIran
| | - Hamed Hamishehkar
- Drug Applied Research CenterTabriz University of Medical SciencesTabrizIran
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Sadighbathi S, Saris PEJ, Amiri S, Yousefvand A. Development and properties of functional yoghurt enriched with postbiotic produced by yoghurt cultures using cheese whey and skim milk. Front Microbiol 2023; 14:1276268. [PMID: 37840711 PMCID: PMC10569472 DOI: 10.3389/fmicb.2023.1276268] [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: 08/11/2023] [Accepted: 09/11/2023] [Indexed: 10/17/2023] Open
Abstract
This study aimed to examine the effects of supplementation of postbiotics derived from Streptococcus thermophilus (ST) and Lactobacillus delbrueckii subsp. bulgaricus (LB) in cheese whey (CW) and skim milk (SM) on antioxidant activity, viability of yoghurt starters, and quality parameters of low-fat yoghurt during 22 days of storage. The LB-CW (L delbrueckii ssp. bulgaricus postbiotic-containing cheese whey) sample exhibited the highest antioxidant activity, with 18.71% inhibition (p > 0.05). This sample also showed the highest water holding capacity (77.93%; p < 0.05) and a trend toward receiving the most favorable sensory attributes (p > 0.05) compared to the other samples. The LB-CW and LB-SM yoghurt samples exhibited significantly higher body and texture scores compared to the ST-SM-fortified yoghurt (p < 0.05). However, there was no significant difference in the overall acceptability of the LB-SM and ST-SM yoghurt samples across both starters (p > 0.05). Such findings highlight the potential of postbiotics as functional ingredients to enhance the nutritional and sensory aspects of yoghurt, further contributing to its appeal as a health-promoting product.
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Affiliation(s)
- Sepideh Sadighbathi
- Department of Comparative Biomedicine and Food Science, University of Padua, Padua, Italy
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Per E. J. Saris
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Saber Amiri
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Amin Yousefvand
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
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Maleki O, Khosrowshahi Asl A, Alizadeh Khaledabad M, Amiri S. Production and characterization of synbiotic ice cream using microencapsulation and cryopreservation of Lactobacillus rhamnosus in whey protein/bio-cellulose/inulin composite microcapsules. Food Measure 2023. [DOI: 10.1007/s11694-023-01922-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Nezamdoost-Sani N, Khaledabad MA, Amiri S, Mousavi Khaneghah A. Alginate and derivatives hydrogels in encapsulation of probiotic bacteria: An updated review. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Amiri S, Nabizadeh F, Rezazad Bari L. A novel source of food hydrocolloids from Trigonella elliptica seeds: extraction of mucilage and comprehensive characterization. J Sci Food Agric 2022; 102:7144-7154. [PMID: 35724273 DOI: 10.1002/jsfa.12080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 06/05/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND In this study, the effects of seed weight (4, 8, and 12 g), extraction temperature (30, 60, and 90 °C), and pH (4, 7, and 10) on the yield of mucilage extraction from fenugreek seeds and its chemical properties were investigated using response-surface methodology. RESULTS The optimum condition for mucilage extraction was a seed weight of 8.30 g, a temperature of 86.10 °C, and pH 6.90. The results showed that the dry weight of extracted mucilage increased with increase and decrease of extraction temperature and pH respectively at high seed weight. Increasing temperature and pH increased the extraction yield, and the effect was more considerable at low seed weight. The maximum carbohydrate content of mucilage was achieved at average levels of variables. The protein, flavonoid, and total phenolic contents of extracted mucilage increased with increasing temperature. Both flavonoid and total phenolic contents were maximum at neutral pH, but they were maximum at moderate and low levels of seed weight respectively. Maximum antioxidant activity was obtained at the highest extraction temperature, seed weight of 8 g, and neutral pH. The study of rheological properties indicated that extracted mucilage solution showed mainly elastic and shear-thinning behavior. CONCLUSION The Fourier transform infrared spectra of extracted mucilage exhibited the existence of polysaccharides and protein chains in fenugreek seeds mucilage. The X-ray diffraction corroborated the presence of crystals in the mucilage structure. The proton nuclear magnetic resonance spectra confirmed the polysaccharides and protein composition of extracted mucilage. The maximum mucilage mass loss was observed at 190-350 °C using thermogravimetric analysis. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Saber Amiri
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Farnaz Nabizadeh
- Department of Food Science and Technology, Faculty of Agriculture, Mahabad Branch, Islamic Azad University, Mahabad, Iran
| | - Laya Rezazad Bari
- Department of Horticultural Science, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
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Sharafi H, Moradi M, Amiri S. Application of Cheese Whey Containing Postbiotics of Lactobacillus acidophilus LA5 and Bifidobacterium animalis BB12 as a Preserving Liquid in High-Moisture Mozzarella. Foods 2022; 11:3387. [PMID: 36359999 PMCID: PMC9655881 DOI: 10.3390/foods11213387] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/20/2022] [Accepted: 10/26/2022] [Indexed: 09/06/2023] Open
Abstract
High-moisture mozzarella cheese (HMMC) is a highly perishable cheese with a short shelf life. In this study, the effects of UF cheese whey containing postbiotics from Lactobacillus acidophilus LA-5 (P-LA-5), Bifidobacterium animalis BB-12 (P-BB-12), and their combination on the microbial (i.e., psychrophiles, mesophiles, lactic acid bacteria, and mold-yeast population) and sensory properties of HMMC were investigated. Postbiotics were prepared in a cheese whey model medium as a novel growth media and used as a preserving liquid in HMMC. The results demonstrate that postbiotics reduced the growth of all microorganisms (1.5-2 log CFU/g reduction) and P-LA5 and P-BB12 had the highest antibacterial performance on mesophiles and psychrophiles, respectively. Mold and yeast had the highest susceptibility to the postbiotics. Postbiotics showed a significant effect on maintaining the microbial quality of HMMC during storage, proposing postbiotics as a new preserving liquid for HMMC.
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Affiliation(s)
- Houshmand Sharafi
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University,
Urmia 1177, Iran
| | - Mehran Moradi
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University,
Urmia 1177, Iran
| | - Saber Amiri
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia 1177, Iran
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Amiri S, Nezamdoost-Sani N, Mostashari P, McClements DJ, Marszałek K, Mousavi Khaneghah A. Effect of the molecular structure and mechanical properties of plant-based hydrogels in food systems to deliver probiotics: an updated review. Crit Rev Food Sci Nutr 2022; 64:2130-2156. [PMID: 36121429 DOI: 10.1080/10408398.2022.2121260] [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] [Indexed: 11/03/2022]
Abstract
Probiotic products' economic value and market popularity have grown over time as more people discover their health advantages and adopt healthier lifestyles. There is a significant societal and cultural interest in these products known as foods or medicines. Products containing probiotics that claim to provide health advantages must maintain a "minimum therapeutic" level (107-106 CFU/g) of bacteria during their entire shelf lives. Since probiotic bacteria are susceptible to degradation and reduction by physical and chemical conditions (including acidity, natural antimicrobial agents, nutrient contents, redox potential, temperature, water activity, the existence of other bacteria, and sensitivity to metabolites), the most challenging problem for a food manufacturer is ensuring probiotic cells' survival and stability enhancement throughout the manufacturing stage. Currently, the use of plant-based hydrogels for improved and targeted probiotic delivery has gained substantial attention as a potential approach to overcoming the mentioned restrictions. To achieve the best possible results from hydrogels, whether used as a coating for encapsulated probiotics (with the goal of stomach protection) or as carriers for direct encapsulation of live microorganisms should be applied kind of procedures that ensure high bacterial survival during hydrogels application. This paper summarizes polysaccharides, proteins, and lipid-based hydrogels as carriers of encapsulated probiotics in delivery systems, reviews their structures, analyzes their advantages and disadvantages, studies their mechanical characteristics, and draws comparisons between them. The discussion then turns to how the criterion affects encapsulation, applications, and future possibilities.
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Affiliation(s)
- Saber Amiri
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Narmin Nezamdoost-Sani
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Parisa Mostashari
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Krystian Marszałek
- Department of Fruit and Vegetable Product Technology, Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology, State Research Institute, Warsaw, Poland
| | - Amin Mousavi Khaneghah
- Department of Fruit and Vegetable Product Technology, Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology, State Research Institute, Warsaw, Poland
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Khaneghah AM, Mostashari P, Oliveira CA, Vanin FM, Amiri S, Sant'Ana AS. Assessment of the concentrations of ochratoxin A, zearalenone, and deoxynivalenol during cracker production. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Yousafzai MS, Yadav V, Amiri S, Staddon MF, Errami Y, Jaspard G, Banerjee S, Murrell M. Cell-Matrix Elastocapillary Interactions Drive Pressure-based Wetting of Cell Aggregates. Phys Rev X 2022; 12:031027. [PMID: 38009085 PMCID: PMC10673637 DOI: 10.1103/physrevx.12.031027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
Cell-matrix interfacial energies and the energies of matrix deformations may be comparable on cellular length-scales, yet how capillary effects influence tis sue shape and motion are unknown. In this work, we induce wetting (spreading and migration) of cell aggregates, as models of active droplets onto adhesive substrates of varying elasticity and correlate the dynamics of wetting to the balance of interfacial tensions. Upon wetting rigid substrates, cell-substrate tension drives outward expansion of the monolayer. By contrast, upon wetting compliant substrates, cell substrate tension is attenuated and aggregate capillary forces contribute to internal pressures that drive expansion. Thus, we show by experiments, data-driven modeling and computational simulations that myosin-driven 'active elasto-capillary' effects enable adaptation of wetting mechanisms to substrate rigidity and introduce a novel, pressure-based mechanism for guiding collective cell motion.
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Affiliation(s)
- M S Yousafzai
- Department of Biomedical Engineering, Yale University, 55 Prospect Street, New Haven, Connecticut 06511, USA
- Systems Biology Institute, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
| | - V Yadav
- Department of Biomedical Engineering, Yale University, 55 Prospect Street, New Haven, Connecticut 06511, USA
- Systems Biology Institute, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
| | - S Amiri
- Systems Biology Institute, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
- Department of Mechanical Engineering and Material Science, Yale University, 10 Hillhouse Avenue, New Haven, Connecticut 06511, USA
| | - M F Staddon
- Center for Systems Biology Dresden, Dresden, Germany
- Max Planck Institute for the Physics of Complex Systems, Dresden, Germany
| | - Y Errami
- Systems Biology Institute, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
- Department of Genetics, Yale School of Medicine, Sterling Hall of Medicine, 333 Cedar Street, New Haven, 06510
- Center for Cancer Systems Biology, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
| | - G Jaspard
- Department of Biomedical Engineering, Yale University, 55 Prospect Street, New Haven, Connecticut 06511, USA
- Systems Biology Institute, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
| | - S Banerjee
- Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA and
| | - M Murrell
- Department of Biomedical Engineering, Yale University, 55 Prospect Street, New Haven, Connecticut 06511, USA
- Systems Biology Institute, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
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Dehkordi AM, Bari MR, Babaie G, Amiri S. Correction to: Application of actinidin as coagulants to produce Iranian white brined cheese: investigating the technological, textural, and sensorial properties. Food Measure 2022. [DOI: 10.1007/s11694-021-01253-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Mahdian Dehkordi A, Rezazadeh Bari M, Babaie G, Amiri S. Application of actinidin as coagulants to produce Iranian white brined cheese: investigating the technological, textural, and sensorial properties. Food Measure 2022. [DOI: 10.1007/s11694-021-01219-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yeganeh-Zare S, Farhadi K, Amiri S. Rapid detection of apple juice concentrate adulteration with date concentrate, fructose and glucose syrup using HPLC-RID incorporated with chemometric tools. Food Chem 2022; 370:131015. [PMID: 34509943 DOI: 10.1016/j.foodchem.2021.131015] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [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: 03/16/2021] [Revised: 07/28/2021] [Accepted: 08/29/2021] [Indexed: 11/18/2022]
Abstract
The present study investigates the substitute of apple juice concentrate with some cheap sweeteners including glucose syrup, fructose syrup, and date concentrate, as the most common adulterants. For this purpose, pure and authenticated apple juice concentrate was individually adulterated with 10% to 50% of glucose syrup, fructose syrup, and date concentrate. High-performance liquid chromatography coupled with a refractive index detector (HPLC-RID) was applied to determine the carbohydrates profile of samples. The results of HPLC-RID were subjected to multivariate statistical analysis, namely principal component analysis (PCA) and linear discriminant analysis (LDA). The results showed that the glucose/fructose ratio and maltose content were the best indicators to detect adulteration of apple juice concentrate. A set of glucose, sorbitol, sucrose, maltose, and glucose/fructose ratio was used as a discriminating factor. Using this approach, adulteration of apple juice concentrate with cheaper sweeteners was detected at a limit of 10%, depending on the adulterant.
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Affiliation(s)
- Samal Yeganeh-Zare
- Department of Analytical Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran
| | - Khalil Farhadi
- Department of Analytical Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran; Institute of Nanotechnology, Urmia University, Urmia, Iran.
| | - Saber Amiri
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
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Amiri S, Abotalebi Kohneshahri SR, Nabizadeh F. The effect of unit operation and adjunct probiotic culture on physicochemical, biochemical, and textural properties of Dutch Edam cheese. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Yousafzai MS, Yadav V, Amiri S, Errami Y, Amiri S, Murrell M. Active Regulation of Pressure and Volume Defines an Energetic Constraint on the Size of Cell Aggregates. Phys Rev Lett 2022; 128:048103. [PMID: 35148133 DOI: 10.1103/physrevlett.128.048103] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 01/03/2022] [Indexed: 06/14/2023]
Abstract
We explore the relationship between the nonequilibrium generation of myosin-induced active stress within the F-actin cytoskeleton and the pressure-volume relationship of cellular aggregates as models of simple tissues. We find that due to active stress, aggregate surface tension depends upon its size. As a result, both pressure and cell number density depend on size and violate equilibrium assumptions. However, the relationship between them resembles an equilibrium equation of state with an effective temperature. This suggests that bulk and surface properties of aggregates balance to yield a constant average work performed by each cell on their environment in regulating tissue size. These results describe basic physical principles that govern the size of cell aggregates.
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Affiliation(s)
- M S Yousafzai
- Department of Biomedical Engineering, Yale University, 55 Prospect Street, New Haven, Connecticut 06511, USA
- Systems Biology Institute, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
- Center for Cancer Systems Biology, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
| | - V Yadav
- Department of Biomedical Engineering, Yale University, 55 Prospect Street, New Haven, Connecticut 06511, USA
- Systems Biology Institute, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
| | - S Amiri
- Systems Biology Institute, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
- Department of Mechanical Engineering and Material Science, Yale University, 10 Hillhouse Avenue, New Haven, Connecticut 06511, USA
| | - Y Errami
- Systems Biology Institute, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
- Department of Genetics, Yale School of Medicine, Sterling Hall of Medicine, 333 Cedar Street, New Haven, Connecticut 06510, USA
- Center for Cancer Systems Biology, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
| | - S Amiri
- Department of Biomedical Engineering, Yale University, 55 Prospect Street, New Haven, Connecticut 06511, USA
- Systems Biology Institute, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
| | - M Murrell
- Department of Biomedical Engineering, Yale University, 55 Prospect Street, New Haven, Connecticut 06511, USA
- Systems Biology Institute, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
- Center for Cancer Systems Biology, Yale University, 850 West Campus Drive, West Haven, Connecticut 06516, USA
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
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19
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Greer M, Amiri S, Denney J, Amram O, Halasz L, Buchwald D. Disparities in Access to Radiation Oncology Facilities Among American Indian/Alaska Natives and Hispanics in Metro and Non-Metro Washington State. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Amiri S, Mokarram RR, Khiabani MS, Bari MR, Alizadeh M. Optimization of food-grade medium for co-production of bioactive substances by Lactobacillus acidophilus LA-5 for explaining pharmabiotic mechanisms of probiotic. J Food Sci Technol 2021; 58:1-12. [PMID: 34538890 PMCID: PMC8405832 DOI: 10.1007/s13197-020-04894-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 10/27/2020] [Accepted: 11/06/2020] [Indexed: 10/23/2022]
Abstract
This study aimed to optimize the co-production of conjugated linoleic acid (CLA), exopolysaccharides (EPSs) and bacteriocins (BACs) by Lactobacillus acidophilus LA-5 in dairy food-grade by-product. The factorial design revealed that the significant factors were temperature, time, and yeast extract. Then the response surface methodology was used for optimization. At the optimal conditions the viable cell number, CLA, EPSs, and inhibition activity were 2.62 ± 0.49 × 108 CFU/mL, 51.46 ± 1.50 μg/mL, 348.24 ± 5.61 mg/mL and 12.46 ± 0.80 mm, respectively. FTIR, GC, TLC, and SDS page analysis revealed the functional groups of pharmabiotics. The FTIR, GC, TLC, and SDS page analysis showed that both CLA isomers (c-9, t-11, and t-10, c-12) produced. The FTIR, GC, TLC, and SDS page analysis indicated that produced EPSs were composed of glucose, mannose, galactose, xylose, and fructose. FTIR, GC, TLC, and SDS page used to report BACs molecular weight, which showed two fractions by molecular mass 35 and 63 kDa. Previously the ability of different probiotic bacteria investigated and optimized the production of CLA, EPSs, and BACs, but, there was no report on the co-producing capacity of these bioactive metabolites by probiotics. The present work was investigated to optimize the co-production of pharmabiotic metabolites by L. acidophilus LA-5, in supplemented cheese whey as a cultivation medium.
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Affiliation(s)
- Saber Amiri
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
- Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Reza Rezaei Mokarram
- Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Mahmoud Sowti Khiabani
- Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Mahmoud Rezazadeh Bari
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Mohammad Alizadeh
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
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21
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Amiri S, Teymorlouei MJ, Bari MR, Khaledabad MA. Development of Lactobacillus acidophilus LA5-loaded whey protein isolate/lactose bionanocomposite powder by electrospraying: A strategy for entrapment. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101222] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Amiri S, Rezazad Bari L, Malekzadeh S, Amiri S, Mostashari P, Ahmadi Gheshlagh P. Effect of
Aloe vera
gel‐based active coating incorporated with catechin nanoemulsion and calcium chloride on postharvest quality of fresh strawberry fruit. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15960] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Saber Amiri
- Department of Food Science and Technology Faculty of Agriculture Urmia University Urmia Iran
| | - Laya Rezazad Bari
- Department of Horticultural Sciences Faculty of Agriculture and Natural Resources Mohaghegh Ardabili University Ardabil Iran
| | - Shahryar Malekzadeh
- Department of Food Science and Technology Faculty of Shahid Beheshti Urmia Branch, Technical and Vocational University (TVU) Urmia Iran
| | - Samaneh Amiri
- Department of Food Science and Technology Faculty of Agriculture Urmia University Urmia Iran
| | - Parisa Mostashari
- Nutrition and Food Sciences Research Center Tehran Medical Sciences Islamic Azad University Tehran Iran
| | - Parviz Ahmadi Gheshlagh
- Department of Food Science and Technology Faculty of Agriculture Urmia University Urmia Iran
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Motalebi Moghanjougi Z, Rezazadeh Bari M, Alizadeh Khaledabad M, Amiri S, Almasi H. Microencapsulation of Lactobacillus acidophilus LA-5 and Bifidobacterium animalis BB-12 in pectin and sodium alginate: A comparative study on viability, stability, and structure. Food Sci Nutr 2021; 9:5103-5111. [PMID: 34532019 PMCID: PMC8441350 DOI: 10.1002/fsn3.2470] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/30/2021] [Accepted: 07/02/2021] [Indexed: 11/18/2022] Open
Abstract
The present study aimed at examining whether the microencapsulation of Lactobacillus acidophilus LA-5 and Bifidobacterium animalis BB-12 inside hydrogels could prolong their survival in freeze-drying conditions, stored at 4℃ and in the gastrointestinal medium. Microencapsulation was performed by emulsion with a syringe, while sodium alginate and high methoxyl pectin were used as a carrier material. A relatively high efficiency of encapsulation was obtained (>92%). Z-Average and pdI in samples were not significant (p < .05). In different treatments, changes in the number of bacteria after freeze-drying, 30 days of storage, and gastrointestinal conditions, compared to each other, were significant (p < .05). However, the survival rate after a reduction during storage was higher than 106 cfu/g, indicating the suitability of the microencapsulation process. The surface of microcapsules observed by a scanning electron microscope (SEM) confirmed the success of encapsulation. Finally, a lower decrease in the count of microencapsulated was observed in comparison to the free cells.
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Affiliation(s)
| | - Mahmoud Rezazadeh Bari
- Department of Food Science and TechnologyFactually of AgricultureUrmia UniversityUrmiaIran
| | | | - Saber Amiri
- Department of Food Science and TechnologyFactually of AgricultureUrmia UniversityUrmiaIran
| | - Hadi Almasi
- Department of Food Science and TechnologyFactually of AgricultureUrmia UniversityUrmiaIran
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Amiri S, Volkert CA, Vink RLC. Friction on incommensurate substrates: Role of anharmonicity and defects. Phys Rev E 2021; 104:014802. [PMID: 34412345 DOI: 10.1103/physreve.104.014802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 07/06/2021] [Indexed: 11/07/2022]
Abstract
We present molecular dynamics simulations of one- and two-dimensional bead-spring models sliding on incommensurate substrates after an initial kick, in the case where the coupling to the underlying substrate is weak, i.e., energy can dissipate only into the internal degrees of freedom of the sliding object, but not into the substrate below. We investigate how sliding friction is affected by structural defects and interaction anharmonicity. In their absence, we confirm earlier findings, namely, that at special resonance sliding velocities, friction is maximal. When sliding off-resonance, partially thermalized states are possible, whereby only a small number of vibrational modes becomes excited, but whose kinetic energies are already Maxwell-Boltzmann distributed. Anharmonicity and defects typically destroy partial thermalization and instead lead to full thermalization, implying much higher friction. For sliders with periodic boundaries, thermalization begins with vibrational modes whose spatial modulation is compatible with the incommensurate lattice. For a disk-shaped slider, modes corresponding to modulations compatible with the slider radius are initially the most dominant. By tuning the mechanical properties of the slider's edge, this effect can be controlled, resulting in significant changes in the sliding distance covered.
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Affiliation(s)
- S Amiri
- Institute of Materials Physics, Georg-August-Universität Göttingen, 37073 Göttingen, Germany
| | - C A Volkert
- Institute of Materials Physics, Georg-August-Universität Göttingen, 37073 Göttingen, Germany
| | - R L C Vink
- Institute of Materials Physics, Georg-August-Universität Göttingen, 37073 Göttingen, Germany
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Amiri S, Shemshadi B, Fallahi S, Shirali S. Detection of Fasciola Hepatica in Lori Sheep Using Polymerase Chain Reaction and Conventional Diagnostic Methods in Western Iran. Arch Razi Inst 2021; 76:223-229. [PMID: 34223721 DOI: 10.22092/ari.2020.128417.1413] [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] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 02/22/2020] [Indexed: 09/30/2022]
Abstract
Fascioliasis is an emerging and important food and water-borne disease in human communities which has become one of the most important health challenges in countries, like Iran. It causes weight loss, a decrease in feed conversion ratio as well as milk and meat production, and also reduces fertility in animals the prevalence of fasciolosis is increasing in some regions of the world due to various factors. Different methods have been used for the detection of Fasciola hepatica in animals. This study is the first to detect F. hepatica in Lori sheep using polymerase chain reaction (PCR) and conventional diagnostic methods in Western Iran. During three months, 195 fecal samples were collected from sheep in Lorestan province, Iran, using the stratified random sampling method. The conventional diagnostic methods, including wet mount microscopic examination and concentration assays, as well as the PCR technique targeting the intergenic spacer gene of F. hepatica, were used for the detection of the parasite in sheep. In total, 4 (2.1%) out of 195 examined stool samples were positive for F. hepatica based on the conventional assays. The PCR test was positive for F. hepatica in7 (3.6%) samples of 195 studied specimens. Statistical analyses of the data revealed that there is a significant difference between the results of diagnostic methods for F. hepatica detection (P=0.0421). Finally, the results showed that PCR has more diagnostic sensitivity, compared to conventional diagnostic methods, including the concentration techniques and microscopic examination. Hence, it can be advised to use PCR for the detection of F. hepatica in sheep.
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Affiliation(s)
- S Amiri
- Department of Pathobiology, Faculty of Veterinary Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - B Shemshadi
- Department of Pathobiology, Faculty of Veterinary Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran.,Department of Pathobiology, Faculty of Veterinary Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Sh Fallahi
- Hepatitis Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran.,Department of Parasitology and Mycology, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - S Shirali
- Department of Biotechnology, Faculty of Basic Sciences, Ahvaz Azad University, Ahvaz, Iran
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Ezrari S, Radouane N, Tahiri A, Amiri S, Lazraq A, Lahlali R. Environmental Effects of Temperature and Water Potential on Mycelial Growth of Neocosmospora solani and Fusarium spp. Causing Dry Root Rot of Citrus. Curr Microbiol 2021; 78:3092-3103. [PMID: 34170379 DOI: 10.1007/s00284-021-02570-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 06/09/2021] [Indexed: 11/29/2022]
Abstract
This study aimed at evaluating the effect of environmental factors temperature and water potential (Ψw) on the growth of Neocosmospora (Fusarium) solani and three Fusarium species (F. oxysporum, F. equiseti and F. brachygibbosum) associated with citrus dry root rot and to determine the optimum and marginal rate for their growth. The effects of incubation temperature (5-40 °C), water potentials (Ψw) (- 15.54; - 0.67 MPa) (0.89-0.995 aw) and their interaction (5-30 °C) was evaluated on the in vitro radial growth rates of Fusarium spp. and on their lag phase. Secondary models were used to model the combined effect of these factors on radial growth rate. The results underlined a highly significant effects (P < 0.001) of Ψw and temperature and their interactions on radial growth rates and lag phases (λ). The Four studied species were shown tolerant to a temperature of 35 °C with an optimum mycelial growth at 30 for N. solani and F. oxysporum and at 25 °C for F. equiseti and F. brachygibbosum. However, no growth was observed at both temperatures 5 and 40 °C and at Ψw of - 9.68 MPa (0.93 aw). The optimum water potential for growth was ≥- 2.69 MPA (>0.98 aw). The results from the polynomial model and response surface showing good agreement between observed and predicted values. The external validation on citrus fruit indicated slight differences between predicted and observed values of radial growth. The results of this study will be beneficial for understanding the ecological knowledge of these species and thereby limited preventively their occurrence.
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Affiliation(s)
- S Ezrari
- Phytopathology Unit, Department of Plant Protection, Ecole Nationale d'Agriculture de Meknès, BPS 40, Meknès, Morocco.,Laboratory of Functional Ecology and Environmental Engineering, Department of Biology, Sidi Mohamed Ben Abdellah University, Route d'Imouzzer, PoBox 2202, Fez, Morocco
| | - N Radouane
- Phytopathology Unit, Department of Plant Protection, Ecole Nationale d'Agriculture de Meknès, BPS 40, Meknès, Morocco.,Laboratory of Functional Ecology and Environmental Engineering, Department of Biology, Sidi Mohamed Ben Abdellah University, Route d'Imouzzer, PoBox 2202, Fez, Morocco
| | - A Tahiri
- Phytopathology Unit, Department of Plant Protection, Ecole Nationale d'Agriculture de Meknès, BPS 40, Meknès, Morocco
| | - S Amiri
- Phytopathology Unit, Department of Plant Protection, Ecole Nationale d'Agriculture de Meknès, BPS 40, Meknès, Morocco
| | - A Lazraq
- Laboratory of Functional Ecology and Environmental Engineering, Department of Biology, Sidi Mohamed Ben Abdellah University, Route d'Imouzzer, PoBox 2202, Fez, Morocco
| | - R Lahlali
- Phytopathology Unit, Department of Plant Protection, Ecole Nationale d'Agriculture de Meknès, BPS 40, Meknès, Morocco.
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Azizi S, Rezazadeh-Bari M, Almasi H, Amiri S. Microencapsulation of Lactobacillus rhamnosus using sesame protein isolate: Effect of encapsulation method and transglutaminase. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101012] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Amiri S, Roshani Saray F, Rezazad-Bari L, Pirsa S. Optimization of extraction and characterization of physicochemical, structural, thermal, and antioxidant properties of mucilage from Hollyhock’s root: a functional heteropolysaccharide. Food Measure 2021. [DOI: 10.1007/s11694-021-00870-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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29
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Sohrabpour S, Rezazadeh Bari M, Alizadeh M, Amiri S. Investigation of the rheological, microbial, and physicochemical properties of developed synbiotic yogurt containing
Lactobacillus acidophilus
LA‐5, honey, and cinnamon extract. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15323] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Sepideh Sohrabpour
- Department of Food Science and Technology Saba College of Higher Education Urmia Iran
| | - Mahmoud Rezazadeh Bari
- Department of Food Science and Technology Faculty of Agriculture and Natural Resources Urmia University Urmia Iran
| | - Mohammad Alizadeh
- Department of Food Science and Technology Faculty of Agriculture and Natural Resources Urmia University Urmia Iran
| | - Saber Amiri
- Department of Food Science and Technology Faculty of Agriculture and Natural Resources Urmia University Urmia Iran
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Ghamari MA, Amiri S, Rezazadeh-Bari M, Rezazad-Bari L. Physical, mechanical, and antimicrobial properties of active edible film based on milk proteins incorporated with Nigella sativa essential oil. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03550-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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31
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Amiri S, Rezaei Mokarram R, Sowti Khiabani M, Rezazadeh Bari M, Alizadeh Khaledabad M. In situ production of conjugated linoleic acid by Bifidobacterium lactis BB12 and Lactobacillus acidophilus LA5 in milk model medium. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109933] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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32
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Amiri S, Behnezhad S. Smoking and disability pension: a systematic review and meta-analysis. Public Health 2020; 186:297-303. [PMID: 32882482 DOI: 10.1016/j.puhe.2020.04.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 01/18/2019] [Revised: 04/03/2020] [Accepted: 04/14/2020] [Indexed: 01/09/2023]
Abstract
OBJECTIVES Smoking has negative consequences on occupational health. The current meta-analysis was conducted with the aim to pool the studies about smoking and increased disability pension. STUDY DESIGN Systematic review and meta-analysis. METHODS Articles were found in the scientific literature using keywords, and searching was limited to prospective cohort studies that had been published before August 2018. Based on the inclusion and exclusion criteria, 23 prospective cohort studies were selected. The analyses were carried out on the basis of the random-effects method. Subgroup analysis was also carried out. Finally, the bias of publication was examined using Begg's test, the Egger test, the trim-and-fill method, and the funnel plot. RESULTS Twenty-three studies were included. The results showed a positive association between smoking and disability pension, with a risk ratio (RR) of 1.41 and 95% confidence interval (95% CI) of 1.30-1.53 (P < 0.001). In men, the RR was equal to 1.48 and 95% CI was equal to 1.30-1.68 (P < 0.001). In women, the RR was equal to 1.23 and 95% CI was equal to 1.09-1.37 (P = 0.001). In current smokers, the RR was equal to 1.41 and 95% CI was equal to 1.26-1.57 (P < 0.001). In former smokers, the RR was equal to 1.16 and 95% CI was equal to 1.05-1.29 (P = 0.003). Qualitative evaluation showed that the studies had a low level of selection bias, data collection bias, and withdrawal and dropout bias. CONCLUSIONS Smoking is a risk factor for increasing disability pension, and men are at higher risk of disability pension. In addition, both current and former smokers are in high risk of disability pension. Overall, it can be concluded that smoking is a risk factor for occupational health.
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Affiliation(s)
- S Amiri
- Behavioral Sciences Research Center, Lifestyle Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - S Behnezhad
- Department of Psychology, Kharazmi University, Tehran, Iran
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Amiri S, Behnezhad S. Association between job strain and sick leave: a systematic review and meta-analysis of prospective cohort studies. Public Health 2020; 185:235-242. [PMID: 32682182 DOI: 10.1016/j.puhe.2020.05.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 04/30/2020] [Accepted: 05/08/2020] [Indexed: 12/14/2022]
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Arbabi M, Amiri S, Badragheh F, Mirbagheri MM, Asadi-Pooya AA. 22 Whole-brain functional connectivity based on the graph theory analysiisn Psychogenic Non-Epileptic Seizures (PNES). J Neurol Neurosurg Psychiatry 2020. [DOI: 10.1136/jnnp-2020-bnpa.39] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
ObjectiveDespite being the subject of many studies over the past two decades, mechanisms underlying psychogenic non-epileptic seizures (PNES) are still poorly understood. We tried to address this issue by utilizing brain functional connectivity analysis to identify brain regions with abnormal activities in patients with PNES. In a case-control study, we performed graph based network analysis, a robust technique that determines the organization of brain connectivity and characterizes topological properties of the brain networks.MethodsTwelve individuals with PNES and twenty-one healthy control subjects were examined. Resting state functional magnetic resonance imaging (rsfMRI) was acquired. All subjects were asked to keep their eyes open during the scanning process. The rsfMRI analysis consisted of pre-processing, extracting the functional connectivity matrix (FCM) based on the AAL atlas, threshold for binary FCM, constructing a graph network from FCM and extracting graph features, and finally statistical analysis. For all cortical and subcortical regions of the AAL atlas, we calculated measures of ‘degree,’ which is one of the features of the graph theory. Results: Our results revealed that, as compared to the healthy control subjects, patients with PNES had a significantly lower degree in some brain regions including their left and right insula (INS), right Putamen (PUT), left and right Supramarginal gyrus (SMG), right Middle occipital gyrus (MOG), and left and right Rolandic operculum (ROL). In contrast, degree was significantly greater in two regions [i.e., right Caudate (CAU) and left Inferior frontal gyrus orbital part (ORBinf)] in patients with PNES compared to that in controls.ConclusionOur findings suggest that functional connectivity of several major brain regions are different in patients with PNES compared with that in healthy individuals. While there is hypoactivity in regions important in perception, motor control, self- awareness, and cognitive functioning (e.g., insula) and also movement regulation (e.g., putamen), there is hyperactivity in areas involved in feedback processing (i.e., using information from past experiences to influence future actions and decisions) (e.g., caudate) in patients with PNES. The observation that individuals with PNES suffer from a wide range of abnormal activities in functional connectivity of their brain networks is consistent with the fact that PNES occur in a heterogeneous patient population; no single mechanism or contributing factor could explain PNES in all patients.
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Sadeghnezhad Z, Amiri S, Rezazadeh-Bari M, Almasi H. Physical and Morphological Characteristics of Edible Composite Film of Sodium Caseinate/Pectin/Zedo Gum Containing Poulk (Stachys schtschegleevii) Extract: Optimizing Bioactivity and Physicochemical Properties. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s41783-020-00094-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Amiri S, Behnezhad S. Is job strain a risk factor for musculoskeletal pain? A systematic review and meta-analysis of 21 longitudinal studies. Public Health 2020; 181:158-167. [PMID: 32059156 DOI: 10.1016/j.puhe.2019.11.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 11/10/2019] [Accepted: 11/27/2019] [Indexed: 02/08/2023]
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Amiri S, Behnezhad S. Job strain and mortality ratio: a systematic review and meta-analysis of cohort studies. Public Health 2020; 181:24-33. [PMID: 31927337 DOI: 10.1016/j.puhe.2019.10.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 10/12/2019] [Accepted: 10/30/2019] [Indexed: 12/13/2022]
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Raiszadeh-Jahromi Y, Rezazadeh-Bari M, Almasi H, Amiri S. Optimization of bacterial cellulose production by Komagataeibacter xylinus PTCC 1734 in a low-cost medium using optimal combined design. J Food Sci Technol 2020; 57:2524-2533. [PMID: 32549603 DOI: 10.1007/s13197-020-04289-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/22/2020] [Accepted: 01/29/2020] [Indexed: 11/28/2022]
Abstract
This study was aimed to optimize the production of bacterial cellulose (BC) by Komagataeibacter xylinus PTCC 1734 using mixture of date syrup and cheese whey as carbon sources as well as ascorbic acid as a supplementary agent and to characterize the properties of produced BC. The results showed the highest BC production on the 10th day. The 50:50 ratio of date syrup and cheese whey lead to the highest BC production. Three samples were selected in optimal cultivation conditions until the 10th day, with different ascorbic acid concentrations (0, 0.1 and 0.4%). SEM results showed no difference in the morphology of BC product in the optimal samples, where the average diameter of cellulose nanofibers produced was in the range of nanometer. The FTIR test results showed no difference in the chemical structure of cellulose product in different ascorbic acid concentrations. According to XRD and TGA analyses, the highest degree of BC crystallinity and thermal resistance was obtained at maximum ascorbic acid concentration (0.04%). Consequently, the 50:50 ratio of date syrup and cheese whey and 10th day of fermentation time were selected as the best conditions for BC production. Though ascorbic acid reduced production efficiency, it improved the physical properties of the BC product.
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Affiliation(s)
| | - Mahmoud Rezazadeh-Bari
- Department of Food Science and Technology, Factually of Agriculture, Urmia University, Urmia, Iran
| | - Hadi Almasi
- Department of Food Science and Technology, Factually of Agriculture, Urmia University, Urmia, Iran
| | - Saber Amiri
- Department of Food Science and Technology, Factually of Agriculture, University of Tabriz, Tabriz, Iran
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Bakeshlou H, Pirouzifard MK, Alizadeh M, Amiri S. Investigation of non-enzymatic browning characteristics of Sardasht black grape juice concentrate using Response Surface Methodology. FSCT 2020. [DOI: 10.29252/fsct.16.97.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Amiri S, Arbabi M, Kazemi K, Parvaresh-Rizi M, Mirbagheri MM. Resting-State Functional Connectivity in Popular Targets for Deep Brain Stimulation in the Treatment of Major Depression: An Application of a Graph Theory. Annu Int Conf IEEE Eng Med Biol Soc 2020; 2019:4334-4337. [PMID: 31946827 DOI: 10.1109/embc.2019.8856413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We examined the functional connectivity of subcallosal cingulate gyrus (SCG), nucleus accumbens (NAc), and ventral caudate (VCa), the main target areas for the treatment of major depression disorder (MDD), using deep brain stimulation (DBS). MDD is one of the most common diseases in the world, and approximately 30% of MDD patients do not respond to common therapies, including psychotherapy and antidepressant medications. Alternatively, DBS has been recently used to treat MDD. Resting state fMRI was obtained from seventeen healthy subjects and seven MDD patients. The functional connectivity network of the brain was constructed for all subjects and measured by the `degree' value for each SCG, NAc, and VCa regions using the graph theory analysis. The results show that the degree values of VCa and the left SCG are higher in the MDD group than the healthy group. Furthermore, the patterns of the degree values were different for the right and left hemispheres in MDD patients. Our findings suggest that degree values and their patterns have a potential to be used as diagnosis tools to detect the brain areas with abnormal functional connectivity.
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Ghasemi S, Bari MR, Pirsa S, Amiri S. Use of bacterial cellulose film modified by polypyrrole/TiO 2-Ag nanocomposite for detecting and measuring the growth of pathogenic bacteria. Carbohydr Polym 2019; 232:115801. [PMID: 31952600 DOI: 10.1016/j.carbpol.2019.115801] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [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: 10/19/2019] [Revised: 12/22/2019] [Accepted: 12/27/2019] [Indexed: 11/18/2022]
Abstract
The aim of this study was to use of bacterial cellulose/polypyrrole/TiO2-Ag (BC/PPy/TiO2-Ag) nanocomposite film to detect and measure the growth of 5 pathogenic bacteria. For this purpose, at first, 13 BC/PPy/TiO2-Ag films were fabricated, then bacterial suspensions were prepared according to McFarland standard. The results showed that by increasing the bacterial concentration, the electrical resistance of sensors was decreased and there was a relation between bacterial concentration and bacterial type with electrical resistance change of sensors. The obtained data showed that the sensitivity of the sensors was increased with increasing the concentration of polypyrrole and TiO2-Ag. FT-IR and SEM tests were performed to investigate the interaction between nanoparticles and determine the size of nanoparticles. The BC/PPy/TiO2-Ag biosensors are portable and the response time of these sensors is very short for target analysis. Therefore, these sensors have the potential to improve biological safety as diagnostic tools.
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Affiliation(s)
- Samaneh Ghasemi
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, P.O. Box 57561-51818, Urmia, Iran
| | - Mahmoud Rezazadeh Bari
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, P.O. Box 57561-51818, Urmia, Iran
| | - Sajad Pirsa
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, P.O. Box 57561-51818, Urmia, Iran.
| | - Saber Amiri
- Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
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Barshan S, Rezazadeh-Bari M, Almasi H, Amiri S. Optimization and characterization of bacterial cellulose produced by Komagatacibacter xylinus PTCC 1734 using vinasse as a cheap cultivation medium. Int J Biol Macromol 2019; 136:1188-1195. [DOI: 10.1016/j.ijbiomac.2019.06.192] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/11/2019] [Accepted: 06/24/2019] [Indexed: 12/20/2022]
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Rezazadeh-Bari M, Najafi-Darmian Y, Alizadeh M, Amiri S. Numerical optimization of probiotic Ayran production based on whey containing transglutaminase and Aloe vera gel. J Food Sci Technol 2019; 56:3502-3512. [PMID: 31274918 DOI: 10.1007/s13197-019-03841-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 05/16/2019] [Accepted: 05/20/2019] [Indexed: 01/09/2023]
Abstract
The purpose of this study was to optimize the functional properties of probiotic Ayran. Two-level fractional factorial design with four center points was used to investigate the effect of five independent variables including, reconstructed whey protein (70-90% of milk), salt (0.5-1 g/100 g), Aloe vera gel (0-30 g/100 g), transglutaminase enzyme (0-14 unit/100 g) and storage time (1-21 days). The viability of Lactobacillus acidophilus La-5 and other physicochemical properties such as pH, acidity, viscosity, sedimentation, and color were modeled and then optimized using desirability function method. Results showed that reconstructed whey protein and Aloe vera gel significantly affected the viability of L. acidophilus La-5 and other physicochemical properties (p < 0.05). The viability of L. acidophilus La-5 and viscosity decreased by increasing of whey protein percentage from 70 to 90. Maximum L. acidophilus La-5 count was observed in samples with a minimum level of whey protein and maximum level of Aloe vera gel. Milk replacement with whey protein up to 90% caused to decrease acidity and viscosity significantly but sedimentation increased (p < 0.05). Optimum condition for production of functional Ayran determined as follow: Aloe vera gel concentration: 25.7%, reconstructed whey protein: 70%, salt: 0.58% and transglutaminase enzyme: 5 unit/100 mL.
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Affiliation(s)
- Mahmoud Rezazadeh-Bari
- 1Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Younes Najafi-Darmian
- 1Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Mohammad Alizadeh
- 1Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Saber Amiri
- 2Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
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Amiri S, Rezazadeh-Bari M, Alizadeh-Khaledabad M, Amiri S. New formulation of vitamin C encapsulation by nanoliposomes: production and evaluation of particle size, stability and control release. Food Sci Biotechnol 2018; 28:423-432. [PMID: 30956854 DOI: 10.1007/s10068-018-0493-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 03/28/2018] [Revised: 10/07/2018] [Accepted: 10/11/2018] [Indexed: 12/30/2022] Open
Abstract
In the present study, the effects of different ratios of milk phospholipids, cholesterol and phytosterols (Campesterol) powder (50-100%, 0-50%, and 0-50%, respectively) and sonication time (20, 25, 30, 35 and 40 min) were investigated to produce a new formulation of nanoliposomes for encapsulation of vitamin C. The results showed that increasing the time of sonication and decreasing the ratio of phospholipid to phytosterol significantly decreased nanoliposomes' particle size (p < 0.05). The maximum encapsulation efficiency was obtained at 35 and 40 min of sonication time and 75-25 ratio of phospholipid: phytosterol. Also, reducing the sonication time in the same ratio of phospholipid/phytosterol caused to increase the controlled release. The highest stability of vitamin C during 20 days was obtained in the ratio of 75-25 (phospholipids: campesterol). The results showed a positive effect of cholesterol replacement with campesterol on encapsulation efficiency, control release and stability of vitamin C in nanoliposomes.
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Affiliation(s)
- Samaneh Amiri
- 1Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Mahmoud Rezazadeh-Bari
- 1Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
| | | | - Saber Amiri
- 2Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
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Rasooli AH, Ashtiyani M, Birgani PM, Amiri S, Mirmohammadi P, Deevband MR. MRI Segmentation using Fuzzy C-Means and Radial Basis Function Neural Networks. CURR SCI INDIA 2018. [DOI: 10.18520/cs/v115/i6/1091-1097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Marzbani H, Parvin S, Amiri S, Lotfian M, Kharazi MR, Azizi S, Mirbagheri MM. The correlation between transcranial magnetic stimulation parameters and neuromuscular properties in children with cerebral palsy. Annu Int Conf IEEE Eng Med Biol Soc 2017; 2016:5473-5476. [PMID: 28269496 DOI: 10.1109/embc.2016.7591965] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We studied the correlation between corticospinal signaling and neuromuscular properties in children with Cerebral Palsy (CP). Corticospinal signaling was evaluated using Transcranial Magnetic Stimulation (TMS). Neuromuscular properties were quantified using Hoffmann reflex (H-reflex), sonoelastography, clinical measurements, and isokinetic measures. In particular, we determined the relationship between the TMS parameters of the ankle joint and the neuromuscular features of ankle extensors and flexors as well as popular clinical measures of gait speed, endurance, balance and mobility. Seventeen CP patients and twelve healthy control subjects were evaluated. Our findings showed that the motor evoked potential (MEP) latency of TMS was significantly longer in CP than in healthy subjects. The MEP-latency was significantly correlated with the H-reflex response (r=0.71, p-value=0.04) and isokinetic features; i.e. max acceleration extension time (r=0.5, p-value=0.005), and max flexion time in the cycle (r=0.5, p-value =0.002). No significant correlation was observed between MEP-latency and clinical measurements of gait and sonoelastography of ankle muscles. The results suggest that the changes in corticospinal signaling could contribute to muscle weakness and hyperexcitability of reflexes observed in children with CP.
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Amiri S, Mehrnia M, Roudsari FP. Enhancing purification efficiency of affinity functionalized composite agarose micro beads using Fe3O4 nanoparticles. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1041-1042:27-36. [DOI: 10.1016/j.jchromb.2016.11.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 11/12/2016] [Accepted: 11/23/2016] [Indexed: 11/28/2022]
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Ashtari N, Jiao X, Rahimi-Balaei M, Amiri S, E. Mehr S, Yeganeh B, Marzban H. Lysosomal Acid Phosphatase Biosynthesis and Dysfunction: A Mini Review Focused on Lysosomal Enzyme Dysfunction in Brain. Curr Mol Med 2016; 16:439-46. [DOI: 10.2174/1566524016666160429115834] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 02/25/2016] [Accepted: 04/02/2016] [Indexed: 11/22/2022]
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Haj-Mirzaian A, Amiri S, Kordjazy N, Momeny M, Razmi A, Rahimi-Balaei M, Amini-Khoei H, Haj-Mirzaian A, Marzban H, Mehr S, Ghaffari S, Dehpour A. Lithium attenuated the depressant and anxiogenic effect of juvenile social stress through mitigating the negative impact of interlukin-1β and nitric oxide on hypothalamic–pituitary–adrenal axis function. Neuroscience 2016; 315:271-85. [DOI: 10.1016/j.neuroscience.2015.12.024] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 11/29/2015] [Accepted: 12/14/2015] [Indexed: 10/22/2022]
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Esfandiari H, Amiri S, Lichti DD, Anglin C. A fast, accurate and closed-form method for pose recognition of an intramedullary nail using a tracked C-arm. Int J Comput Assist Radiol Surg 2015; 11:621-33. [PMID: 26450111 DOI: 10.1007/s11548-015-1294-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Accepted: 09/09/2015] [Indexed: 10/23/2022]
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