Esmeray Kuley

Cukurova University | CU · Department of Fishing and Processing Technologies

Impacts of aqueous and ethanolic extracts of garlic were investigated in suppressing bacterial growth and biogenic amine (BA) formation by selected foodborne pathogens (Candida albicans, Salmonella paratyphi A, Escherichia coli and Staphylococcus aureus) and fish spoilage bacteria (Enterococcus faecalis, Photobacterium damselae and Pseudomonas lute...

The bioavailability of Arthrospira platensis as an antioxidant in fish oil after fermentation and microencapsulation process was investigated in this study. Unfermented and fermented A. platensis (Spirulina) were dried in a spray dryer with different ratios of maltodextrin and the powdered Spirulina samples were added to fish oil at a rate of 2% to...

Food-borne pathogens and their toxins cause significant health problems in humans. Formation of biogenic amines (BAs) produced by microbial decarboxylation of amino acids in food is undesirable because it can induce toxic effects in consumers. Therefore, it is crucial to investigate the effects of natural additives with high bioactivity like spice...

The bioactive properties of the combination of microencapsulated cell-free supernatant (CFS) from Streptococcus thermophilus and thyme extract on food-related bacteria (Photobacterium damselae, Proteus mirabilis, Vibrio vulnificus, Staphylococcus aureus ATCC29213, Enterococcus faecalis ATCC29212, and Salmonella Paratyphi A NCTC13) were investigated...

The impacts of spice (sumac, cumin, black pepper, and red pepper) extract on Gram-positive (S. aureus and E. faecalis) and Gram-negative (K. pneumonia, P. aureginosa, C. jejuni, A. hydrophila, S. Paratyphi A, and Y. enterocolitica) food-borne pathogen bacterial strains (FBP) for their antibacterial activity and accumulation of ammonia (AMN), trimet...

The enhancing impact of fermentation with Lactiplantibacillus plantarum and drying/coating on bioactivity properties of Spirulina platensis was investigated. The fermentation with Lp. plantarum took place anaerobically for 72 h at 37 C. Encapsulation of fresh and fermented samples was made by spray‐drying with a 170 °C air inlet temperature, a 20 m...

BACKGROUND Owing to the toxic effects of enterococci, their biogenic amine production is a negative aspect of safe strain selection and unfavourable activity in food. Additionally, the ability to tolerate acid and bile are two important traits for the selection of probiotic strains since they show the probiotic bacteria's capacity to survive throug...

The extracts of Padina pavonica (a macroalgae, ME), Rubus fruticosus (blackberry) leaves (BE), Juniperus oxycedrus waste (JWE) and Juniperus communis needles (JE) were used to evaluate their potential effects on chemical, microbial and organoleptic qualities of sea bass (Dicentrarchus labrax). The sensory assessment showed that fish fillets treated...

The antimicrobial effects of aqueous extracts prepared by different extraction methods on important food-borne zoonotic bacteria (Klebsiella pneumoniae (ATCC700603), Campylobacter jejuni (ATTC 33,560), Salmonella Paratyphi A (NCTC13), Staphylococcus aureus (ATCC29213), and Enterococcus faecalis (ATCC29212)) were investigated. The bioactive componen...

The effects of sumac, cumin, black pepper and red pepper diethyl ether extracts on the growth of eight foodborne pathogens (FBP) and their biogenic amine (BA) production were investigated in histidine decarboxylase broth. The antimicrobial effect was determined by the minimum inhibitory (MIC) and minimum bactericidal (MBC) concentrations. Sumac ext...

The impact of two different concentrations (1500 and 2000 ppm) of olive leaf extract (OLE) on functional properties of anchovy oil (Engraulis encrasicolus) emulsified with sodium caseinate and maltodextrin and microencapsulated by spray drying method were investigated. OLE groups were compared with the control group that did not contain any antioxi...

A comparative study on the effects of marjoram (ME) and olive leaf (OLE) extracts on the quality parameters of red and ordinary muscles of tuna–like fillets kept under vacuum–packaging at refrigerated storage were investigated in this study. Tuna–like (Auxis thazard) fillets were dipped in sterile plant extract solutions (0.5% w/v) for five minutes...

The effect of nanoemulsions based on rosemary essential oil (BNE) and its purified version (BEO) on the growth of fish spoilage bacteria (P. luteola, P. damselae, V. vulnificus, E. faecalis, S. liquefaciens, and P. mirabilis) and foodborne pathogens (S. Paratyphi A, S. aureus, K. pneumoniae, and E. faecalis) and their biogenic amine formation were...

Çalışmada Türk marketlerinde ticari olarak satılan 17 farklı işlenmiş balık ürününün (dondurulmuş Alaska mezgiti, hamsi filetosu, sardalya filetosu, berlam filetosu, Asya kedi balığı filetosu, palamut, Atlantik somon; tütsülenmiş kurutulmuş uskumru, alabalık, Atlantik somon; marine edilmiş uskumru, hamsi, kırmızı biber soslu hamsi ve acı biber sosl...

Green nanotechnology has been considered a novel approach that minimizes risks associated with human health and the environment due to the use of nanoproducts. In addition, this technology involves the use of nontoxic, biocompatible, and ecofriendly materials. Among different nanosystems, micro- and nanoemulsions are regarded as promising environme...

Antibacterial and antioxidative effects of microencapsulated Lactobacillus reuteri ATCC 55730 cell-free supernatant (CFS) alone (MCFS) or in combination with propolis water (MPW) and ethanolic extract (MPE) on sardine burger were investigated at 4 ± 1 ºC for 15 days. Morphological properties of microcapsules were determined by scanning electron mic...

Background Seafood processing activity causes production of considerable amount of waste/by-products and discards, resulting in negative economic and environmental impacts. Management of sustainable utilisation of seafood resources is essential to avoid environmental problems and provide resource sustainability. Scope and approach Fishery discards...

Inactivation of bacterial growth and their biogenic amine production in foods are essential for food safety and consequently human health. Spirulina platensis and Chlorella vulgaris are the most commonly used microalgae in the formulation of food products due to their high content of bioactive compounds with antimicrobial properties. In the present...

Nisin is produced by Lactococcus lactis subsp. lactis and also known as an antimicrobial agent especially against gram-positive bacteria. It has been used as a preservative in foods and beverages for a long time and generally regarded as safe (GRAS). In the present work, the effects of different concentrations of nisin (0.2, 0.4 and 0.8%) on the se...

The influence of water extracts of Spirulina platensis and Chlorella vulgaris (1%) on sensory, chemical and microbiological changes was investigated in vacuum packaged sardine fillets at 4 ± 1 °C for 15 days. Mineral content and bioactive chemical components of microalgae samples were also detected by ICP-MS and GC–MS, respectively. The results sho...

Antibacterial properties of microencapsulated Lactobacillus plantarum cell-free supernatant (CFS) in combinations with aqueous or ethanolic propolis extract at doses of 1% against fish spoilage bacteria were investigated. Microencapsulated samples contained more than 17 compounds, of which furyl alcohol, acetic acid, maltol, and 2(5H) furanon were...

Safflower (Carthamus tinctorius) and bitter melon (Momordica charantia L.) ethanolic extracts for controlling growth of fish spoilage bacteria (Acinetobacter lwoffii, Pseudomonas oryzihabitans, Enterobacter cloacae, Shigella spp., Morganella psychrotolerans and Photobacterium phosphoreum) and food-borne pathogens (Staphylococcus aureus, Klebsiella...

Lactic acid bacteria (LAB) have been isolated from fermented foodstuff and pre‐identified using API 50 CHL and confirmed by polymerase chain reaction method to investigate the protective properties against important foodborne pathogens of their cell‐free supernatants (CFS) and neutralized cell‐free supernatants (NCFS). The antimicrobial activity of...

Lactic acid bacteria (LAB) have been isolated from fermented foodstuff and pre‐identified using API 50 CHL and confirmed by polymerase chain reaction method to investigate the protective properties against important foodborne pathogens of their cell‐free supernatants (CFS) and neutralized cell‐free supernatants (NCFS). The antimicrobial activity of...

The influence of oil-in-water nanoemulsion using commercial olive oil at different concentrations on the fatty acid profile of rainbow trout fillets stored at 4 ± 2 °C was evaluated. At the end of the storage period, the highest content of the total saturated fatty acids (SFA) was found in the control samples (18.1%) while the lowest content was ob...

Ethanolic and aqueous extracts of propolis (0.4 and 0.8%) were used to examine their in vitro impacts on the growth and biogenic amines (BAs) formation by Morganella psychrotolerans DSM 17886 in histidine decarboxylase (HDB) and sardine infusion decarboxylase broth (SIDB). In addition, the extracts effects were monitored in vivo on vacuum packaged...

The antibacterial activities of nanoemulsions based on essential oil of thyme and its purified version on food-borne pathogens (S. Paratyphi A, S. aureus, K. pneumoniae, and E. faecalis) and spoilage bacteria of fish (P. luteola, P. damselae, V. vulnificus, E. faecalis, S. liquefaciens, and P. mirabilis) were evaluated using disc diffusion, MIC and...

Portakal kabuğu, nar kabuğu, şadok kabuğu, mandalina kabuğu ve kekik bitkisinden elde edilen beş hidrosolün 3 gıda kaynaklı bakteri (Staphylococcus aureus, Salmonella Parathyphi A ve Klebsiella pneumoniae) ve 3 balık bozucu bakterileri (Vibrio vulnificus, Pseudomonas luteola ve Photobacterium damselae) üzerindeki antimikrobiyal aktivitesi, mikrodil...

Valorisation of discard fish and fish wastes fermented with lactic acid bacteria have potential biotechnological application to produce high quality animal food. Five lactic acid bacteria strains naturally present in fish (Lactobacillus brevis, Lactobacillus plantarum, Pediococcus acidilactici, Streptococcus spp. and Enterococcus gallinarum) and fo...

Organic acid contents of acidified and fermented fish silages made from gibel carp (Caracius gibelio) and klunzinger’s ponyfish (Equulites klunzingeri) fishes and from fish processing residues or by-products were determined and studied. The silages were undertaken in wet and freeze dried fish-based raw-materials for 3 weeks at room temperature (ca....

The quality of vacuum packed sea bass fillets treated with nanoemulsions based on commercial oils (hazelnut oil, corn oil, canola oil, soybean oil, olive oil, and sunflower oil) at 2 ± 2°C was evaluated by sensory, chemical (thiobarbituric acid reactive substances, peroxide value, total volatile basic nitrogen, and free fatty acids), and microbiolo...

This study was conducted to investigate the effects of nanoemulsions prepared with various concentrations of olive oil on the sensory, chemical and microbiological quality of rainbow trout fillets. The results showed that the shelf life of rainbow trout fillets were determined as 10 days for the control, 12 days for tween 80 group, 14 days for the...

It is important to maintain the sensory quality and shelf-life of the final product, while increasing the nutritional quality of the meat product and reducing the cost of production. It was aimed to combination of fish protein isolate prepared from discard fish and chicken meat for frankfurter production to provide both add value to the discard fis...

The impact of safflower (Carthamus tinctorius) and bitter melon (Momordica charantia L.) extracts on growth of fish spoilage bacteria (Acinetobacter lwoffii, Pseudomonas oryzihabitans, Enterobacter cloacae, Shigella spp., Morganella psychrotolerans, Photobacterium phosphoreum) and food-borne pathogens (Staphylococcus aureus, Klebsiella pneumoniae,...

The antimicrobial activities of lemon oil based nanoemulsion and two different concentrations of lemon essential oil (100% and 10%) on food-brne pathogens (Staphylococcus aureus, Klebsiella pneumoniae, Enterococcus faecalis and Salmonella Paratyphi A) and fish spoilage bacteria (Photobacterium damselae, Enterococcus faecalis, Vibrio vulnificus, Pro...

The impacts of fermentation process with acid and lactic acid bacteria strains (Lactobacillus plantarum, Lactobacillus brevis, Pediococcus acidilactici, Enterococcus gallinarum, and Streptococcus spp.) on the biogenic amine formation of wet and spray-dried fish silage obtained from whole gibel carp (Carassius gibelio, freshwater discard), whole pon...

Chemical, microbiological and sensorial properties were investigated depending on the storage time to understand the impacts of gamma irradiation at doses of 4 and 5 kGy on frog legs (Rana esculenta) during storage at 2 °C. While TVB-N values of control groups found as 50.11 mg/100 g after a 10 day storage period, 4 and 5 kGy frog legs were found a...

Practical application: Emulsions have become popular since they are regarded as ideal carrier for the delivery of lipophilic substances due to the ease of preparation, small particle size, their enhanced bioavailability, and long term kinetic stability. They have been proven to be self-preserving antimicrobials due to bound water in their structur...

In this study, it was aimed to determine the chemical composition of the pufferfish (Lagocephalus sceleratus) caught from Mersin Bay in the Northeastern Mediterranean Sea. For this purpose, the proximate composition, fatty acid profile, mineral and heavy metal levels were investigated. Pufferfish samples were caught using trawl fishing technique ov...

The fermented fish silages produced with Streptococcus spp., Lactobacillus brevis, Lactobacillus plantarum, Pediococcus acidilactici and Enterococcus gallinarum, and formic acid silages were compared for production of two discard fish silages (Equulites klunzingeri and Carassius gibelio). The E/NE ratio of spray-dried fish silages was determined in...

Lactic acid bacteria species naturally present in fish (Streptococcus spp., Lactobacillus brevis, Lactobacillus plantarum, Pediococcus acidilactici and Enterococcus gallinarum) and formic acid were compared for production of fish silage, which are protein hydrolysates with immune stimulating properties. It is the first report for Enterococcus galli...

The antimicrobial effects of olive by-products (olive leaf extract (OL), olive cake (OC), and black water (BW) on food borne pathogens and fish spoilage bacteria isolated from anchovy, mackerel, and sardine were investigated. Total polyphenol contents in olive by products were determined by the Folin-Ciocalteu procedure and their chemical compositi...

In the presented study, ensiling of discard fish by acidification or fermentation was evaluated. Klunzinger's ponyfish which is a discard fish was used for the production of fish silage by acidification (3% formic acid for Method FA; 1.5% formic and 1.5% sulphuric acid for Method FASA) and fermentation (Lactobacillus plantarum for Method LP and Str...

The impact of carvacrol at different levels (0.1%, 0.5%, and 1%) on ammonia (AMN) and biogenic amines (BAs) production by 8 common foodborne pathogens (FBPs) (Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Enterococcus faecalis, Pseudomonas aeruginosa, Listeria monocytogenes, Aeromonas hydrophila, and Salmonella Paratyphi A) was st...

The antimicrobial activity of twelve essential oil (pine oil, eucalyptus, thyme, sage tea, lavender, orange, laurel, lemon, myrtle, lemon, rosemary and juniper) was tested by a disc diffusion method against food borne pathogens (Escherichia coli, Salmonella paratyphi A, Klebsiella pneumoniae, Yersinia enterocolitica, Pseudomonas aeruginosa, Aeromon...

Ethanolic extracts from mint and artemisia were applied on vacuum-packed sardine fillets in order to investigate their effects on biogenic amine formation during 21 days at 3 ± 1C. Three different groups were tested: control group (without ethanolic extracts), T1 (mint extract – 1% w/v) and T2 (artemisia extract – 1% w/v). Natural extract treatment...

Sterol contents (desmosterol, cholesterol, stigmasterol, and sitosterol) of 36 fresh and cooked seafood and four freshwater fish species were investigated by high performance liquid chromatography (HPLC) method. Cholesterol and sitosterol were main sterols in seafood and freshwater fish species. Raw shellfish and molluscs contained cholesterol abov...

Beta-hydroxy-gamma-trimethyl amino butyric acid (L-carnitine) content of raw and cooked seafood was determined using high-performance liquid chromatography method. Thirty-one different fish species and nine different crustaceans were used to compare L-carnitine content of raw and cooked seafood. Significant differences in L-carnitine content were f...

The influences of fish infusion decarboxylase broth (IDB) on biogenic amines (BA) formation by lactic acid bacteria (LAB) were investigated. BA productions by single LAB strains were tested in five different fish (anchovy, mackerel, white shark, sardine and gilthead seabream) IDB. The result of the study showed that significant differences in ammon...

Effects of laurel and myrtle extracts on the sensory, chemical and microbiological properties of vacuum-packed and refrigerated European eel (Anguilla anguilla) fillets Summary The effects of extracted natural antioxidant (laurel and myrtle) on the sensory, chemical (TVB-N, TBARS, PV, FFA and pH) and microbiological (total viable count, psychrotrop...

The present study investigated the effects of ethanolic extracts obtained from Mentha spicata and Artemisia campestris on the shelf life and the quality of vacuum-packed sardine fillets stored at 3 ± 1°C for a period of 21 days. The three groups were tested were VC, control group; VM, group treated with 1 % mint extract; and VA, group treated with...

The present study investigated the effects of ethanolic extracts obtained from Mentha spicata and Artemisia campestris on the shelf life and the quality of vacuum-packed sardine fillets stored at 3 +/- 1°C for a period of 21 days. The three groups were tested were VC, control group; VM, group treated with 1% mint extract; and VA, group treated with...

Alpha (α)-, beta (β)-, gamma (γ)- and delta (δ)-tocopherol in commonly consumed fish species and also the effects of microwave cooking on tocopherol content of fish were investigated. α-Tocopherol was found to be the major form of vitamin E in fish muscle. Golband goatfish (47.81 mg/kg), anchovy (40.84 mg/kg), striped sea bream (34.31 mg/kg) and bo...

Many plants, including strawflower and mistletoe, contain antioxidants and antimicrobials, which can increase the shelf life of seafood. The main aim of this study was to investigate the effect of mistletoe and strawflower extracts at doses of 0.5% (w/v) on the sensory, chemical and microbiological properties of rainbow trout fillets during 27 days...

Bacterial strains (32) from spoiled sardine were isolated and investigated for their ability to produce histamine and tyramine in histidine and tyrosine decarboxylase broth, respectively by a rapid high-performance liquid chromatography (HPLC) method. The predominant microflora of sardine consisted of the genera Enterobacteriaceae, Pseudomonas, Chr...

Bacterial strains (32) from spoiled sardine were isolated and investigated for their ability to produce histamine and tyramine in histidine and tyrosine decarboxylase broth, respectively by a rapid high-performance liquid chromatography (HPLC) method. The predominant microflora of sardine consisted of the genera Enterobacteriaceae, Pseudomonas, Chr...

The aim of this study was to determine and compare differences in sensory, chemical and microbiological post-mortem changes between wild and farmed rainbow trout (Oncorhynchus mykiss). Lipid content was higher (5.77%) in wild fish than cultured fish (3.02%). Wild fish were very rich in n-3 fatty acids. Although wild fish were preferred to cultured...

Interactions of mixed cultures [lactic acid bacteria (LAB) and food‐borne pathogens (FBP)] on putrescine (PUT) as well as other biogenic amines (BAs) production were investigated in ornithine‐enriched broth. Significant differences in BAs production were found among the bacterial strains (P Salmonella Paratyphi A and Aeromonas hydrophila as well as...

The effects of the seasonal on the proximate and fatty acid compositions of male and female warty crab from Black Sea were investigated. Important differences were found in proximate and fatty acid compositions for all seasons and gender. There were variations in protein and water content of meat of female and male crabs (p<0.05). The results of fa...

The effect of different seasons on sterol content of seafoods was investigated. There were four sterols (cholesterol, sitosterol, desmosterol and stigmasterol) identified, with cholesterol being the predominant sterol. Stigmasterol was a minor component in fish muscle, whilst sitosterol was one of the main phytosterols found in fish muscle. Cholest...

The function of lactic acid bacteria (LAB) on biogenic amines (BAs) accumulation by gram negative and positive food-borne pathogens (FBP) was investigated in arginine decarboxylase broth (ADB). Main amines produced by gram negative and positive bacteria were putrescine (PUT), spermidine, agmatine (AGM) and 2-phenylethylamine in ADB. There were not...

The effect of Lactobacillus plantarum (FI8595), Lactococcus lactis subsp. cremoris MG 1363), Lactococcus lactis subsp. lactis (IL 1403), and Streptococcus thermophilus on cadaverine and other biogenic amine production by foodborne pathogens was investigated lysine decarboxylase broth. Both of lactic acid bacteria and foodborne pathogens used (espec...

The effect of icing with the rosemary extract on the quality and safety of sardines (Sardinella aurita) was assessed through the chemical, sensory and microbiological methods. The sensory acceptability limit was 12 days for sardine stored in traditional ice and 15 days for sardine stored in ice prepared from rosemary extract solution. There were no...

Different doses (1% and 5%) of natural zeolite were applied to determine quality changes in vacuum packaged sardine fillets during 19 days at 4 ± 1 °C. Zeolite had an effect to improve sensory quality of sardine especially for removing off-odour. The acceptable shelf life of vacuum packaged sardine was 8 days for control and 12 days for groups trea...

Unlabelled: The influence of natural zeolite on biogenic amines (BAs) and ammonia (AMN) production by eight common gram negative and positive foodborne pathogens (FBP) were investigated in histidine decarboxylase broth (HDB). Presence of 1% zeolite in the HDB resulted in significantly higher AMN production. Histamine (HIS) production by gram posit...

The effect of Lactobacillus plantarum (FI8595), Lactococcus lactis subsp. cremoris MG 1363), Lactococcus lactis subsp. lactis (IL 1403), and Streptococcus thermophilus on cadaverine and other biogenic amine production by foodborne pathogens was investigated lysine decarboxylase broth. Both of lactic acid bacteria and foodborne pathogens used (espec...

The influences of lactic acid bacteria and brine solutions on the biogenic amine formation by Staphylococcus aureus, Escherichia colt, Klebsiella pneumoniae, Enterococus faecalis, Pseudomonas aeruginosa, Listeria monocytogenes, Aeromonas hydrophila and Salmonella paratyphi A in fermented trout fillets were investigated. Fish fillets were divided in...

A rapid high-performance liquid chromatographic (HPLC) method with simple extraction procedure for the determination of tocopherols in seafood was developed. A continuous isocratic elution system was used for the analysis with a mixture of acetonitrile and methanol. Tocopherols were identified by comparison of retention times and peak area values w...