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Insects as a Source of Protein النص الكامل
2022
Gizem Simge Kılınç | Fatma Nurdem Çelen | Neriman Bağdatlıoğlu
The world population growth has increased demand for traditional protein sources but an alternative protein source was sought due to limited land. Edible insects containing all the essential amino acids in a healthy diet are sustainable and promising alternative protein source. The protein content of insects varies in a wide range depending on the type of insect and the stage of development (13%-77%). Some edible insects are currently consumed by two billion people worldwide. In the literature, more than 2100 insect species have been recorded as edible. The sensory attributes of edible insects are an important factor that can accelerate their acceptance by consumers. Generally, the taste of insects is described as nutty and largely depends on the cooking technique. Potential food safety risks of edible insects can be microbiological, parasitological and allergenic. This review has been shown to be a healthy food source with high protein content, lipids, vitamins, minerals and fiber, the nutritional composition and functionality are compared between different insect species, and information on the sensory quality and risks of insect eating is presented.
اظهر المزيد [+] اقل [-]Gıda Mühendisliği Öğrencilerinin Gıda Güvenliği Hakkında Davranış ve Risk Algıları: Hatay Mustafa Kemal Üniversitesi Örneği النص الكامل
2021
Ahmet Duran Çelik
Gıda güvenliği her tüketiciyi ilgilendiren önemli bir konudur. Gıda güvenliğinin sağlanması açısından gıda ürünlerinin üretim aşamasında alınacak önlemlerin yanı sıra tüketicilerin bilinç seviyesi de ayrıca önem taşımaktadır. Bugüne kadar yapılan çeşitli araştırmalarda, gıda zehirlenmelerinin veya gıdaya bağlı olarak ortaya çıkan çeşitli hastalıkların önemli bir kısmının evde yapılan yanlış gıda uygulamalarından kaynaklandığı belirlenmiştir. Bu araştırmada, gıda mühendisi adaylarının, gıda güvenliği konusunda bilgi seviyelerinin, tutum, yaklaşım ve risk algılarının belirlenmesi amaçlanmıştır. Araştırma sonuçlarına göre, görüşülen öğrencilerin %74,79’inin alışveriş sırasında ‘’her zaman’’ gıda ürünlerinin son kullanım tarihlerine baktıkları, et ürünleri satış yeri olarak en çok süper marketlere güvendikleri, genetiği değiştirilmiş ürünleri en riskli ürün grubu olarak değerlendirdikleri belirlenmiştir.
اظهر المزيد [+] اقل [-]Determination of Students' Consumption Behavior Based on Their Awareness of Food Safety: The Case of Ordu University النص الكامل
2019
Derya Öztürk | Gamze Aydın Eryılmaz | Osman Kılıç
The aim of this study was to determine students' consumption behavior based on their awareness of food safety. Data were collected using survey method. Study sample consisted of 400 students of Ünye Faculty of Economics and Administrative Sciences, Ordu University, Turkey. Chi-square test was used to determine whether participants’ levels of awareness of food safety differed by socio-economic characteristics. One-way analysis of variance (ANOVA) was used to determine differences in mean scores among awareness groups (low, medium and high) in terms of reading the nutrition information on food labels, food purchasing venues to be reliable and factors affecting food purchase decisions. Results showed that expiry date was the most important factor in food purchase decisions, followed by dates of production and packaging. Participants’ levels of awareness of food safety significantly differed by the proportion of monthly income allocated to food and their preference for cheap foods containing GMO. Supermarkets were ranked the most reliable venues for safe food purchasing, followed by groceries and greengrocers. Results also showed that food purchase decisions of the low and medium awareness groups were mostly affected by their families while those of the high awareness group were mostly affected by their doctors. Results indicate that firstly parents' awareness should be raised about food safety and safe food consumption so that future generations can be more conscious of these issues. In addition, courses on these matters should be included in curricula, and seminars or workshops should be held to raise students' awareness of food safety.
اظهر المزيد [+] اقل [-]Thermal Inactivation of Salmonella Enteritidis Inoculated to Cake and Chicken النص الكامل
2018
Ceyda Dadalı | Duygu Kışla
In this study, thermal inactivation of Salmonella Enteritidis inoculated to the cake dough and a whole raw chicken was investigated. The cake dough was inoculated with 6.15 log-cfu/g S. Enteritidis then, thermal treatment was applied at 160°C top-bottom fan cooking mode. The initial count of S. Enteritidis showed reductions 1.49 log-cfu/g, 2.06 log-cfu/g and 4.29 log-cfu/g in the samples from the cold point location from the geometric center of the cake at 5, 7 and 10 minutes of thermal treatment, respectively. Although S. Enteritidis is not detected at the end of 15 minutes of heat treatment, the center of the cake temperature has reached 85.69°C and the cake sample is uncooked and its sensory properties are not acceptable. The cake that is safe and favorable with the sensory properties to the consumers was obtained by heat treatment for 30 minutes. After the cold point of a whole raw chicken was inoculated with 7.29 log-cfu/g S. Enteritidis, thermal treatment was applied at 220°C top-bottom fan cooking mode. The temperature at the cold point of 35 and 45 minutes heat-treated chickens reached 59.33 and 74.08°C, respectively, and 1.93 log-cfu/g and 5.33 log-cfu /g S. Enteritidis reduction caused in the samples respectively. S. Enteritidis cells were not detected in the whole chicken heat treated at 220°C for 60 minutes. The cakes, heat treated at 160°C top-bottom fan cooking mode for 30 minutes, were stored at two different storage temperatures as 4°C and 25°C for 72 hours. The whole chicken, heat treated at 220°C top-bottom fan cooking mode for 60 minutes, was stored at 4°C for 72 hours. S. Enteritidis cells were not detected in the cake and the whole chicken samples after the storage period.
اظهر المزيد [+] اقل [-]The Determination of the Biochemical Properties of Some Monofloral Honey Samples Produced across Turkey النص الكامل
2016
Aziz Gül
This study was conducted in 2013 to determine the biochemical properties of 10 different monofloral honey types produced across Turkey. For the study, honey samples were obtained from beekeepers and the identity and relative percentage of dominant pollen types in samples was determined through microscopic analysis. Pollen analysis revealed that honey types chaste tree (Vitex agnus-castus) and sunflower (Helianthus annuus) contained high proportions of each respective pollen type. These proportions reached as high as 86%, while other honey types such as Anason had low Anasom pollen content, occurring at 45% in whole honey samples. Biochemical analysis revealed that the average honey sample quality characteristics were as followings: ash 0.37±0.04, electricity conductivity 0.79±0.07 mS/cm, moisture 19.15±0.09%, pH 3.97±0.02, acidity 29.07±0.39 meq/kg, hydroxymethylfurfural (HMF), 6.17±0.76 mg/kg, diastase 22.05±0.00, invert sugar 69.72±0.49% and sucrose 2.90±0.30%. These analyses confirmed that honey samples met standards outlined by the Turkish Food Codex Honey Standard, European Union Honey Standard and Codex Standards respectively.
اظهر المزيد [+] اقل [-]Microbiological and Chemical Quality of Feta Cheeses Consumed in Van النص الكامل
2016
Enise Akel | Süleyman Alemdar
This study is aimed to determine the microbiological and chemical quality of Feta cheeses which are consumed in Van city center. In this study, a total of 50 Feta cheese samples were used as material. At the result of microbiological analysis of Feta cheeses, the mean number of total aerobic mesophilic bacteria, lactic acid bacteria, coliform, Escherichia coli, micrococcus/staphylococcus, coagulase positive Staphylococcus aureus, Clostridium perfringens, Enterobacteriaceae, yeast and mold were found as 5.49 log cfu/g, 5.20 log cfu/g, 0.78 log cfu/g, 0.10 log cfu/g, 0.58 log cfu/g, 0.53 log cfu/g, 0.08 log cfu/g, 0.96 log cfu/g, 5.18 log cfu/g, respectively. At the result of chemical analysis, the mean value of pH, titratable acidity, dry matter, fat, fat in dry matter, salt and salt in dry matter were found as 4.38, 1.41% LA, 41.21%, 18.12%, 44.18%, 8.36% and 20.42%, respectively. All of the samples were found conforming to the standards in terms of titratable acidity. On the other hand, 8%, 52% and 100% of samples were found unsuitable in terms of coagulase positive S. aureus, pH and salt in dry matter, respectively. As a result, it was concluded that Feta cheeses examined are inadequate in terms of microbiological and chemical quality and they could pose a risk to producers and consumers. The implementation of the HACCP system based on GMP at all stages of the food chain will play an active role for food safety, public health and the protection of consumer rights.
اظهر المزيد [+] اقل [-]Microbiological and Chemical Quality of Feta Cheeses Consumed in Van النص الكامل
2016
Enise Akel | Süleyman Alemdar
This study is aimed to determine the microbiological and chemical quality of Feta cheeses which are consumed in Van city center. In this study, a total of 50 Feta cheese samples were used as material. At the result of microbiological analysis of Feta cheeses, the mean number of total aerobic mesophilic bacteria, lactic acid bacteria, coliform, Escherichia coli, micrococcus/staphylococcus, coagulase positive Staphylococcus aureus, Clostridium perfringens, Enterobacteriaceae, yeast and mold were found as 5.49 log cfu/g, 5.20 log cfu/g, 0.78 log cfu/g, 0.10 log cfu/g, 0.58 log cfu/g, 0.53 log cfu/g, 0.08 log cfu/g, 0.96 log cfu/g, 5.18 log cfu/g, respectively. At the result of chemical analysis, the mean value of pH, titratable acidity, dry matter, fat, fat in dry matter, salt and salt in dry matter were found as 4.38, 1.41% LA, 41.21%, 18.12%, 44.18%, 8.36% and 20.42%, respectively. All of the samples were found conforming to the standards in terms of titratable acidity. On the other hand, 8%, 52% and 100% of samples were found unsuitable in terms of coagulase positive S. aureus, pH and salt in dry matter, respectively. As a result, it was concluded that Feta cheeses examined are inadequate in terms of microbiological and chemical quality and they could pose a risk to producers and consumers. The implementation of the HACCP system based on GMP at all stages of the food chain will play an active role for food safety, public health and the protection of consumer rights.
اظهر المزيد [+] اقل [-]Impacts of the Climate Change on Agricultural Food Security, Traditional Knowledge and Agroecology النص الكامل
2014
Murat Türkeş
This paper focuses mainly on both impacts of the climate change on agriculture and food security, and multidisciplinary scientific assessment and recommendations for sustainable agro ecological solutions including traditional knowledge responding to these impacts. The climate change will very likely affect four key dimensions of the food security including availability, accessibility, utilization and sustainability of the food, due to close linkage between food and water security and climate change. In one of the most comprehensive model studies simulating impacts of global climate change on agriculture to date, it was estimated that by 2080, in a business-as-usual scenario, climate change will reduce the potential output of global agriculture by more than 3.2 per cent. Furthermore, developing countries will suffer the most with a potential 9.1 per cent decline in agricultural output, for example with a considerable decrease of 16.6 per cent in Africa. Some comprehensive studies pointed out also that all regions may experience significant decreases in crop yields as well as significant increases, depending on emission scenarios and the assumptions on effectiveness of carbon dioxide (CO2) fertilization. One of the tools that would ensure the food security by making use of local sources and traditional knowledge is agroecology. Agroecology would contribute to mitigation of the anthropogenic climate change and cooling down the Earth’s increasing surface and lower atmospheric air temperatures, because it is mainly labour-intensive and requires little uses of fossil fuels, energy and artificial fertilisers. It is also necessary to understand the ecological mechanisms underlying sustainability of traditional farming systems, and to translate them into ecological principles that make locally available and appropriate approaches and techniques applicable to a large number of farmers.
اظهر المزيد [+] اقل [-]Karbon Noktaları ve Gıda Analizlerinde Potansiyel Kullanımı النص الكامل
2024
Eren Küllük | Ali Gücükoğlu
Karbon noktalar (KN), boyutları 10 nm’den küçük, suda çözünme özelliği yüksek, biyo-uyumluluğu gelişmiş, geniş optik özelliklere ve düşük toksisiteye sahip, karbon nanomateryal sınıfının yeni bir üyesidir. KN, bahsi geçen özelliklerinin yanında; çevre dostu, kolay ve düşük maliyetli sentez yöntemleri, kolay uygulanabilirliği gibi sebeplerden dolayı gıda güvenliğini alanında erken tespit hususunda geleneksel analiz yöntemleri ve diğer floresan karbon nanomateryaller kullanılarak yapılan analizlere göre bir adım öndedir. Yapılan araştırmalar gıda güvenliği kapsamında yapılan analizlerde floresan KN kullanımının, analitlerin hassas ve yüksek seçicilikte tespit edilebildiğini ortaya koymuştur. Bu derlemede, KN gıda güvenliği kapsamında kalıntı ve kontaminantların tespitinde ve gıda ambalajında kullanılmasına yönelik araştırmalar incelenmiştir.
اظهر المزيد [+] اقل [-]The Detection and Enumeration of Coliform Bacteria in Some Ready-to-Eat Unpackaged Food in Fethiye Region النص الكامل
2021
Mehtap Çiftçi | Nilgün Öncül
Since coliform bacteria are common both in the intestine and in nature (soil, plant, etc.), they are considered as a sanitation indicator in the food industry. It is known that the majority of bacteria defined as fecal coliform in the coliform group are Escherichia coli. The presence of E. coli or fecal coliform bacteria in any sample is an indication that the necessary hygienic measures are not taken during production, storage, and sale. That means the sample is directly or indirectly contaminated with faeces, and/or other intestinal pathogens may also exist. In this study, raw milk, freshly squeezed fruit juices, unpackaged ice cream, shaved ice, and ice-cold samples were purchased from the famous touristic destination Fethiye and analyzed for coliform bacteria. For this purpose, the samples were purchased from local marketplaces, buffets, cafes, patisseries, restaurants, and roadsides at Fethiye. In total 60 samples were analyzed using Violet Red Bile (VRB) Agar. The results of coliform bacteria ranged
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