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Sara Basiri

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Papers by Sara Basiri

The effects of Shirazi thyme (Zataria multiflora) oil nanoemulsion on the quality of shrimp (Litopenaeus vannamei) during refrigerated storage

Journal of Food Science and Technology

Protective effects of oral administration of mixed probiotic spores of Bacillus subtilis and Bacillus coagulans on gut microbiota changes and intestinal and liver damage of rats infected with Salmonella Typhimurium

Journal of Food Safety

Although the intestinal lumen is a significant way to enter pathogens such as Salmonella, they fa... more Although the intestinal lumen is a significant way to enter pathogens such as Salmonella, they face a dense microbiota in the gut lumen. This community confers health benefits. Probiotics enhance the colonization resistance and direct inhibition of pathogens, which are essential in reducing the incidence and duration of gastroenteritis and histopathological complications of enteric pathogens. In this study, the spores of two probiotic bacteria, Bacillus subtilis and Bacillus coagulans, were fed to rats for 3 weeks through their daily water intake. After that, Salmonella typhimurium was gavaged to the rats. On days 1, 3, 5, and 7 after gavaging, intestinal microbiota were evaluated, and on days 3, 5, and 7 after gavaging, gut and liver histopathological changes were also evaluated. Salmonella caused no changes in the spore and aerobic bacteria population compared to the control group, but it increased anaerobic and coliform bacteria and reduced lactic acid bacteria (LAB). But B. subt...

Applications of Microbial Exopolysaccharides in the Food Industry

Avicenna Journal of Medical Biochemistry

Exopolysaccharides (EPSs) are high molecular weight polysaccharides secreted by microorganisms in... more Exopolysaccharides (EPSs) are high molecular weight polysaccharides secreted by microorganisms in the surrounding environment. In addition to the favorable benefits of these compounds for microorganisms, including microbial cell protection, they are used in various food, pharmaceutical, and cosmetic industries. Investigating the functional and health-promoting characteristics of microbial EPS, identifying the isolation method of these valuable compounds, and their applications in the food industry are the objectives of this study. EPS are used in food industries as thickeners, gelling agents, viscosifiers, and film formers. The antioxidative, anticancer, prebiotic, and cholesterol-lowering effects of some of these compounds make it possible to use them in functional food production.

Fortification of stirred yoghurt with mucilage-free flaxseed and its physicochemical, microbial, textural and sensory properties

International Dairy Journal, 2022

Functional and quality attributes of beef burgers fortified by brown linseed powder

Functional Foods in Health and Disease, 2022

The effects of adding brown linseed at different concentrations (3, 4, and 5%) on physicochemical... more The effects of adding brown linseed at different concentrations (3, 4, and 5%) on physicochemical and sensory attributes of beef burgers were analyzed. Linseed powder increased the protein and fat content and decreased the moisture of the raw burgers and the fat absorption after frying. It also increased the ω3, ω6, ω9 level, PUFA/SFA ratio, and reduced the ω6:ω3 fraction. Improving the cooking yield and water holding capacity were other benefits of this fortification. The linseed did not change the texture and sensory properties of burgers but improved the flavor and general acceptance. Adding the linseed powder to the beef burger formulation is a good way for improving the yield and simultaneously improving the physicochemical property and nutritional value of the beef burger.

Near Neutral Electrolyzed Water and Peroxyacetic Acid and Their Effect on the Survival of Escherichia coli, Salmonella Typhimurium, and Listeria monocytogenes Inoculated on Poultry Meat

Food Protection Trends, 2021

This study was conducted to evaluate the antimicrobial efficacy of near-neutral electrolyzed wate... more This study was conducted to evaluate the antimicrobial efficacy of near-neutral electrolyzed water (NEW) and peroxyacetic acid (PAA) alone and in combination for reducing the foodborne pathogens Salmonella Typhimurium, Escherichia coli, and Listeria monocytogenes in pure culture and fresh chicken meat. The NEW treatments resulted in 100% inactivation of these organisms in pure culture at concentrations of 50, 100, and 200 μg/mL and 2 min of contact time at room temperature. The PAA treatments at concentrations of 100 and 200 μg/mL resulted in 100% inactivation of the tested pathogens. The combination of NEW and PAA had a greater bactericidal effect than did each individual treatment. The inoculated chicken meat samples were dipped for 10 min in each treatment solutions (100 and 200 μg/mL NEW, 200 and 400 μg/mL PAA, 100 μg/mL NEW + 200 μg/mL PAA) at room temperature. Samples dipped in water were used as a control. The greatest reduction was achieved with the combined treatment, which significantly (P < 0.05) reduced total cells and healthy cells of Salmonella Typhimurium, E. coli, and L. monocytogenes by 2.79 and 3.01, 2.63 and 2.75, and 1.47 and 1.99 log CFU/g, respectively. The findings of this study indicate that a combined treatment with NEW and PAA has potential as a novel antimicrobial agent to improve the microbial safety of fresh chicken meat.

Paratyphoid infection caused by Salmonella Typhimurium in a pigeon flock (Columbia livia) in Iran

Salmonellosis is well known as a severe problem of all bird species, as well as humans, which is ... more Salmonellosis is well known as a severe problem of all bird species, as well as humans, which is considered as one of the most common infectious diseases in pigeons. In the present study, a homing pigeon flock was referred with non-specific clinical signs such as diarrhea, progressive weight loss, weakness, drooping wings associated with a 21.05% mortality rate. At necropsy, severe necrotic hemorrhagic enteritis was found together with severe dehydration and pectoral muscle atrophy. In order to investigate the possibility of Salmonella infection, bacterial examinations were performed on Brilliant Green (BG) agar, Xylose-lysine deoxycholate (XLD) agar, and Salmonella-Shigella (SS) agar plates. Besides, biochemical tests were conducted to confirm Salmonella identification. Moreover, tissue samples were taken for histopathological examination. The results of bacteriological examinations showed the presence of Salmonella Typhimurium through Salmonella colonies on the applicable media, G...

Influence of combined vacuum packaging and pomegranate peel extract on shelf life and overall quality of pacific white shrimp (Peneous vannamei) during refrigerated storage

Iranian Journal of Veterinary Research, 2014

Summary The present work was carried out to study the effect of vacuum packaging and pomegranate ... more Summary The present work was carried out to study the effect of vacuum packaging and pomegranate peel extract (PE) treatments on the quality of pacific white shrimp ( Peneous vannamei ) during refrigerated storage. Changes in pH, thiobarbituric acid (TBA), total volatile base nitrogen (TVB-N), trimethylamine (TMA), aerobic plate counts, psychrophilic, lactic acid bacteria and enterobacteriaceae counts, melanosis and sensory characteristics were investigated in up to 10 days of storage at 4°C. Microbial growth of vacuum packed and PE treated (1 or 2%) shrimps were retarded during storage time in comparison with the control group (P<0.05). Furthermore, use of PE in combination with vacuum packaging enhanced the antimicrobial effect of vacuum packaging against the bacterial populations. Vacuum packaging demonstrated a significant reduction in TVB-N, TMA and TBA content of shrimps during refrigerated storage. However, use of vacuum packaging and PE in combination did not significantl...

The Persian lime peel extract‐loaded tragacanth gel coating for sodium metabisulfite reduction in Pacific white shrimp ( Litopenaeus vannamei )

Journal of Food Processing and Preservation, 2021

The effect of date versus sugar on sensory, physicochemical, and antioxidant properties of ice cream

Iranian journal of veterinary research, 2020

Background Despite the popularity of ice cream, its high content of sugar and fat is worrisome. S... more Background Despite the popularity of ice cream, its high content of sugar and fat is worrisome. Substituting sugar with natural and useful resources is one possible solution. Dates (Phoenix dactylifera) are rich in carbohydrates and are a good source of energy; they also have a large amount of phenolic compounds and anthocyanin. Aims The aim of this study is to evaluate the effect of ice cream sugar replacement with date products. Methods Accordingly, four ice cream samples with different sweeteners including 1) sucrose (as a control), 2) date pulp + sucrose, 3) date liquid sugar, and 4) sucrose + date liquid sugar, were produced. Total phenolics, anthocyanins, and antioxidant activities of dates and their effects on physicochemical and sensory properties of ice cream were investigated. Results A large amount of phenolic compounds and anthocyanin was found in the ice cream contained date pulp and liquid sugar, which enhanced the reducing power and antioxidant effect of it. The overr...

Evaluating the potential of mucilaginous seed of psyllium (Plantago ovata) as a new lead biosorbent

Bioactive Carbohydrates and Dietary Fibre, 2020

Lead is one of the most important environmental, human hazard. Accordingly, the lead (II) absorpt... more Lead is one of the most important environmental, human hazard. Accordingly, the lead (II) absorption capability of the mucilaginous seed of psyllium (Plantago ovate) in mice was investigated. Experimental mice were divided into six groups: healthy control, psyllium groups (1 and 2% psyllium), Lead group (75 mg/kg body weight lead), and psyllium + Lead groups (1 & 2% psyllium and 75 mg/kg body weight lead). The amount of lead in weekly feces samples and liver, kidney, and brain tissue after 5 weeks were measured by the atomic absorption method. At the end of the experimental period, the histopathological lesions of the kidney, liver, brain, and intestine were examined. The results indicated that psyllium increases the fecal excretion of lead and decrease its tissue absorption. Oral administration of the 2% psyllium, significantly reduced the pathological lesions of the kidney, liver, brain, and intestine caused by lead. The use of psyllium seed in lead-exposed populations is recommended.

Effects of MixedProbiotic Spores ofBacillus Coagulans and Bacillus Subtilis on Gut Microbiota and Intestinal and Liver Damage of Rats Infected with Salmonella Typhimurium

Background: Although the intestinal lumen is a major way for the entrance of pathogens such as Sa... more Background: Although the intestinal lumen is a major way for the entrance of pathogens such as Salmonella, they face a dense microbiota in the gut lumen. This community confers health benefits. The probiotics enhance the colonization resistance and direct inhibitory effects against pathogens, which are important in reducing the incidence, duration of gastroenteritis and also histopathological effects. Methods: In this study spore of two probiotic bacteria, Bacillus subtilis and Bacillus coagulans were fed to rats for three weeks through their daily water intake after which Salmonella Typhimurium was gavaged to the rats. On days 1, 3, 5 and 7 after gavaging, intestinal microbiota and days 1, 3, 5 and 7 after gavaging, gut and liver histopathological changes were evaluated. Results: In comparison to the control group, Salmonella caused no change in spore and aerobic bacteria population but it caused anaerobic and coliform bacteria increase and LAB reduction. But B. subtilis and B. coa...

Evaluation of the effect of neutral electrolyzed water and peroxyacetic acid alone and in combination on microbiological, chemical, and sensory characteristics of poultry meat during refrigeration storage

Food Science and Technology International, 2020

The objectives of this study were to evaluate the efficacy of near-neutral electrolyzed water (NE... more The objectives of this study were to evaluate the efficacy of near-neutral electrolyzed water (NEW) (100 and 200 µg/ml), peroxyacetic acid (PAA) (200 and 400 µg/ml), and their combination (NEW 100 µg/ml + PAA 200 µg/ml) on microbial quality, pH, TBARS value, and sensory quality of fresh chicken breast meat dipped into the solutions for 10 min at room temperature. Meat samples were tested immediately after treatments and on days 2, 4, and 6 of storage at 4℃. All treatments were effective in reducing microbial populations throughout the storage (P < 0.05), with combined treatment showing the strongest antimicrobial activity. On the sixth day of storage, the aerobic plate counts, psychrophilic plate count, Enterobacteriaceae, lactic acid bacteria, and Pseudomonas counts in the NEW 100 µg/ml + PAA 200 µg/ml group were 1.33, 1.40, 1.45, 1.01, and 1.45 log CFU/g, respectively, which was lower than the control group (P < 0.05). In all treatments, the pH value of meat samples increase...

Effects of two probiotic spores of Bacillus species on hematological, biochemical, and inflammatory parameters in Salmonella Typhimurium infected rats

Scientific Reports, 2020

Salmonella infections have become a major health concern in recent decades. This pathogen has evo... more Salmonella infections have become a major health concern in recent decades. This pathogen has evolved to become resistant to antibiotics, which has caused problems in its treatment. As such, finding a novel preventive method is important in the treatment and management of this infection. In recent years, uses of probiotics, especially spore-former genera such as Bacillus spp. has become increasingly popular. In this study spores of two probiotic bacteria, Bacillus subtilis and Bacillus coagulans were fed to rats for three weeks through their daily water intake after which Salmonella Typhimurium was gavaged to the rats. On days 1, 3, 5 and 7 after gavaging, the number of Salmonella was counted in liver, spleen, mesenteric lymph nodes, feces and content of ileum and cecum. Hematological and biochemical parameters, inflammatory mediators, total antioxidant capacity and malondialdehyde were also measured. The results showed that B. subtilis and B. coagulans caused delation in infiltrati...

Study of Troponin and Creatinine Kinase Changes Associated with Heart and Brain Pathological Lesions Due to Experimental Toxicity of Nerium oleander in Wistar Rat

journal of ilam university of medical sciences, Jul 1, 2017

Flaxseed mucilage: A natural stabilizer in stirred yogurt

Carbohydrate polymers, 2018

Today, there is much interest in the use of natural ingredients in the food industry. Flaxseed mu... more Today, there is much interest in the use of natural ingredients in the food industry. Flaxseed mucilage (FSM) stands out for its health benefits and functional characteristics. The effect of FSM and its combination with carboxymethylcellulose (CMC) on quality properties of stirred yogurt were investigated. The addition of FSM and FSM + CMC to stirred yogurt increased the viscosity and decreased syneresis. Addition of FSM decreased the cohesiveness and increased the adhesiveness of the stirred yogurt, while its combination with CMC leads to decreased adhesiveness, increased cohesiveness and springiness. The gumminess and hardness of yogurt were reduced when supplemented with FSM and FSM + CMC. Sensory attributes were influenced by FSM and FSM + CMC; however, these were not deteriorated significantly during 21 days storage at 4 °C. FSM has the potential as a natural stabilizer to improve the texture of stirred yogurt.

Curing Effects on the Growth of Listeria Monocytogenes and Escherichia Coli O157:H7 in Camel Meat Using Most Probable Number-Polymerase Chain Reaction Method

Journal of microbiology, biotechnology and food sciences, 2017

MPN-PCR method was used to determine Escherichia coli O157:H7 and Listeria monocytogenes in cured... more MPN-PCR method was used to determine Escherichia coli O157:H7 and Listeria monocytogenes in cured camel meat samples during nine days of storage. The MPN-PCR is based on the combination between the conventional Most Probable Number and the Polymerase Chain Reaction technique targeting the Stx1and Stx2 gene for Ecoli O157:H7 and hlyA gene for L. monocytogenes.Growth of both bacteria in the cured and control experimental groups was initially subjected to a spectrophotometric MPN assay using a microplate reader followed by confirming by two PCR assays. It was shown that in the inoculated samples, the population of both microorganisms was significantly increased at all the test times. However, a significant reduction in the populations of both microorganisms was shown in the cured meat compared to the inoculated -but not- cured group. Our results suggested that curing can improve the microbial quality of camel meat.

Experimental Nerium oleander poisoning in Balb/c mice and Wistar rat: comparative hepatotoxicity and nephrotoxicity effects based on biochemical and pathological studies

Turkish Journal of Biochemistry, 2017

Objective:is a member of theMethod:The present paper was carried out to compare the toxic effect ... more Objective:is a member of theMethod:The present paper was carried out to compare the toxic effect of oral administration ofResults:Significant differences were observed in the level of the ALT, AST, BUN and creatinine. Interestingly, the biochemical changes were more severe in AST in rats compared with mice (15–16 and 4–5 times compared to control, respectively). In comparison, the values of BUN in rats were higher compared with mice (2–2.5 and 1–1.5 times, respectively). In mice and in rat more sever toxic lesions were observed in the liver and kidney, respectively.Conclusion:In conclusion, the biochemical and pathological results of the current study suggested that mice have more susceptibility to hepatotoxicity of

Corrigendum to “The effect of pomegranate peel extract (PPE) on the polyphenol oxidase (PPO) and quality of Pacific white shrimp (Litopenaeus vannamei) during refrigerated storage” [LWT – Food Sci and Technol 60 (2015) 1025–1033]

LWT - Food Science and Technology, 2015

Corrigendum to "The effect of pomegranate peel extract (PPE) on the polyphenol oxidase (PPO) and ... more

The effect of pomegranate peel extract (PPE) on the polyphenol oxidase (PPO) and quality of Pacific white shrimp (Litopenaeus vannamei) during refrigerated storage

LWT - Food Science and Technology, 2015

Running title: Effect of pomegranate peel extract on quality of pacific white shrimp The effect o... more