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Survival Survey of Lactobacillus acidophilus In Additional Probiotic Bread Полный текст
2019
Truong Duc Thang | Le Thi Hanh Quyen | Hoang Thi Thuy Hang | Nguyen Thien Luan | Dang Thi KimThuy | Dong My Lieu
Bread is a popular food in the world because of its variety and convenience. Currently, studies on the adding probiotics to bread are limited due to the adverse effects of processing, such as baking temperature, aerobic environment to the probiotic bacteria. The objective of this study was to produce probiotic cream bread, in which Lactobacillus acidophilus was microencapsulated with Alginate 2% (A); Alginate 2% + maltodextrin 1% (AM); Alginate 2% + xanthan gum 0.1% (AX); and Alginate 2% + maltodextrin 1% + xanthan gum 0.1% (AMX). Microcapsules were added to the kernel, conducting encapsulation yield investigations, survival in baking, preservation of bread, and in simulated gastric fluid and simulated intestinal fluid conditions after 8 days of storage. The results showed that the addition of xanthan gum enhanced the encapsulation yield, it reached 92.9% and 92.37% in AMX and AX samples, respectively. The viability of L. acidophilus during baking was decreased by 3.64 and 3.75 Log (CFU/bread) in AMX and AM samples, compared to A and AX which were decreased by 4.75 and 4.44 Log (CFU/ bread). In SGF (Simulated Gastric Fluid) and SIF (Simulated Intestinal Fluid) conditions, the AMX microcapsules provide the best probiotic protection among the four tested carriers. The combination of xanthan gum and maltodextrin in alginate matrix, eventually leading to having dual efficiency: First, xanthan gum would act as buffers that reduce acid activity; Second, maltodextrin acting as a protective agent of L. acidophilus against high temperature as well as potential prebiotic that improve the viability of probiotic.
Показать больше [+] Меньше [-]The Effect of Drying Methods on Color and Chlorophyll Content of Parsley Leaves Полный текст
2019
Ilknur Alibas | Mahrukh Parveez Zia | Aslihan Yilmaz
Parsley leaves (Petroselinum crispum L.) weighing 100 ± 0.09 g were dehydrated from moisture content of 82.24 ± 0.07% to 10.01 ± 0.02 % (wet basis) using the microwave (MD), convective (CD), solar oven (SOD), sun (SD) and natural (ND) drying. Drying in MD, CD, SOD, SD, and ND was completed at 18±1.15, 61±0.58, 255±10, 330±5.29, and 1530±11.55 min, respectively. The energy consumption of MD and CD was measured as 0.213±0.009 and 0.427±0.015 kWh, respectively. In microwave drying, 700 W microwave output power was applied while convective drying was used with 50°C temperature and 1m/s air velocity. The sun and solar oven drying processes were carried out under the same conditions at the same time. The average temperature of the system during the solar oven drying was 81.7±1.5°C whereas the airflow in the system was 0.5 m/s. The data obtained from the experiments were also modeled using twelve different thin-layer drying equations, and thus the theoretical data were obtained. According to these theoretical data, the best model in the microwave and natural drying was Alibas’s equation while the most suitable model in the solar and convective drying was modified Henderson and Pabis’s model. On the other hand, it was seen that the best model in the solar oven drying was the Page equation. As a result, considering both quality and drying parameters, it was determined that MD and SOD were the most suitable method for drying of parsley leaves.
Показать больше [+] Меньше [-]Türkiye’de Üretilen Mısırlarda Mikotoksin Düzeylerinin ve GDO Varlığının Araştırılması Полный текст
2019
Sanem Argın | Sibel Şimşek Yazıcı
Ülkemizde mısır üretimindeki artış bir yandan sürerken, bir yandan da dünyada mısırın soyadan sonra en çok genetiği değiştirilmiş ürün olması nedeniyle tüketicinin mısır ile ilgili algısı her geçen gün daha olumsuz olmaktadır. Genetiği değiştirilmiş mısırın potansiyel olumsuz etkileri tartışılmakta iken, mısırda insan sağlığı için gözden kaçmaması gereken en büyük tehdit mikotoksinlerdir. Bu çalışmada, Türkiye’nin 24 ilinde bulunan 552 köyün 634 tarlasından toplanan mısır numuneleri GDO, aflatoksin B1, toplam aflatoksin, fumonisin B1, fumonisin B2, T-2 toksin, HT-2 toksin, zearalenon ve deoksinivalenol yönünden incelenmiştir. Tarama yapılan mısır numunelerinin hiçbirinde transgenik elemente rastlanmamıştır. Analiz edilen 634 numunenin sadece bir tanesinde Türk Gıda Kodeksi limitinin üzerinde aflatoksin B1 miktarına rastlanmış, numunelerin toplam aflatoksin değerleri Türk Gıda Kodeksi limitinin altında çıkmıştır. Paçal oluşturulan numunelerin hiçbirinde T-2 toksin, HT-2 toksin, zearalenon ve deoksinivalenol tespit edilmezken, fumonisin tespit edilen numunelerin toplam fumonisin miktarı Türk Gıda Kodeksi limitinin altında bulunmuştur. Bu sonuçlar, yerli üretim mısırların gıda güvenliği açısından uygun standartları sağladığını göstermektedir.
Показать больше [+] Меньше [-]The Design of a Mini Plant Factory with Artificial Lighting and Application of Environmental Conditions Control System Полный текст
2019
Ali Çaylı | Emir Hüseyin Kaya
Due to rapidly increasing population and urbanization, agricultural lands are shrinking. However, environmental problems and pollution are constantly increasing. This poses a threat to agricultural production and food access. In order to overcome these threats, the use of fully controlled indoor production systems called plant factory is becoming widespread. The management of plant nutrition and monitor of environmental conditions is very important for production in the plant factory. Plant production is sensitive to environmental conditions. For this reason, it is necessary to make accurate measurements in order to ensure the correct climatic conditions. The high cost of control systems designed for this purpose is a problem for producers. In this study, a mini plant factory prototype and control system are presented which is developed by using open source hardware and software. In addition, the temperature, relative humidity and light measured by the low-cost sensors were compared with the reference devices and the system performance and stability were investigated.
Показать больше [+] Меньше [-]Antalya Otbiçen (Arachnida: Opiliones) Türlerinin Uyum Analizi Yöntemi İle İncelenmesi Полный текст
2019
İlkay Çorak Öcal
Otbiçenler çevre şartlarından etkilenmektedir. Otbiçenler hemen hemen her habitatta bulunurlar. Tür çeşitliliği ve birey sayısı özellikle nemli ve sık bitki örtüsüne sahip yerlerde artmaktadır. Otbiçenler bir çok ekosistemin önemli ve faydalı bileşenleridir. Ayrıca ekolojik açıdan incelendiğinde hem güçlü predatörler hemde güçlü indikatör türlerdir. Antalya nemli bir il olduğundan otbiçen çeşitliliğinin fazla olması beklenmektedir. Bu çalışmada Antalya’da otbiçen türleri ile yükseklik, ilçe, toprak türü ve bitki örtüsü gibi değişkenler arasındaki ilişkilerin uyum analizi ile incelenmesi amaçlanmıştır. Değişkenlerin kategorileri arasında var olan benzerlikler grafikler üzerinde gösterilerek yorumlanmıştır.
Показать больше [+] Меньше [-]Evaluation of Oat (Avena sativa L.) Genotypes for Yield and Some Quality Parameters in Trakya-Marmara Region Полный текст
2019
Turhan Kahraman | Asiye Seis Subaşı | Özge Yıldız | Ceylan Büyükkileci | Turgay Sanal
This study was carried out in 2015-2016 cropping year in Kırklareli ve Edirne locations with 60 oat lines and 4 varieties of commercials (Kırklar, Kahraman, Yeniçeri and Sebat). The experiment was arranged in an alpha lattice experiment design (8 x 8= 64) with three replications. In the research, it was aimed to determine genotypes suitable for the region by examining yield and some quality parameter performances of oat genotypes.The traits such as grain yield (GY), thousand kernel weight (TKW), test weight (TW), plumpness (P, sieved 2.2 mm slotted), husk rate (HR), full grain oat protein (FGOP), starch (S), β-glucan (β-G) and L value (L) content of genotypes were investigated. The variation among oat lines for grain yield was significant and differences for TKW, TW, P, HR, FGOP, S, β-G, and LBV were also determined. The GY, TKW, TW, P, HR, FGOP, S, β-G and LBV of oat lines ranged between 588.3-860.8 (735.0) kg/da, 21.1-44.0 (31.9) g, 49.3-58.9 (54.7) kg/hl, 13.5-93.5 (69.9) %, 12.1-31.1 (23.9) %, 14.9-20.9 (18.1) %, 51.3-60.5 (56.2) %, 3.2-4.7 (4.0) % and 83.6-89.3 (87.1) in Kırklareli and 472.8-90.35 (681.3) kg/da, 23.0-41.3 (32.4) g, 42.9-55.3 (549.2) kg/hl, 22.4-95.8 (74.7) %, 18.3-30.8 (25.0) %, 14.9-20.3 (18.1) %, 53.1-62.8 (57.5) %, 2.9-5.0 (3.9) % and 84.2-89.9 (87.7) in Edirne respectively.The oat lines 14, 16, 19, 43, 3, 48 and Kırklar and Kahraman varieties were hopeful in Kırklareli and the oat lines 16,18,19, 21, 22, 44, 2, 51, 52 and Kahraman variety were hopeful in Edirne location for grain yield and investigated quality parameters. The oat lines 14, 16, 19, 21 and Kahraman variety were suitable in terms of investigated traits in Trakya-Marmara region.
Показать больше [+] Меньше [-]Effect of Spirulina Biomass Fortification for Biscuits and Chocolates Полный текст
2019
Oya Irmak Şahin
Microalgae can be regarded as an alternative and promising ingredient for food fortification or enrichment. Due to their nutritional composition, especially protein-high composition, they considered as a sustainable protein source for food. The aim of this work was to evaluate the Arthrospira platensis (Spirulina) dry biomass which is knowns as the greater protein and amino acid source in blue-green microalga, as innovative ingredient for newly formulated and produced biscuits and chocolates, for baby and children diets. All samples with Spirulina biomass showed significantly higher protein and amino acid content.
Показать больше [+] Меньше [-]Determination of Students' Consumption Behavior Based on Their Awareness of Food Safety: The Case of Ordu University Полный текст
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.
Показать больше [+] Меньше [-]The Effects on Final Take and Root Quality of Mychorrizal Preparations in Grafted Vine Sapling Production Полный текст
2019
Duran Kılıç | Rüstem Cangi
This study was carried out in order to determine the effects of Mychorrizal Preparation (MP) applications on final take and root quality in grafted and potted grapevine sapling production. In this research, cuttings of five different Vine rootstocks (140 Ru, 110 R, 41 B, 1103 P and 5 BB) and scions of Narince grape cultivar were used. In addition, 5 commercials symbiotic mychorriza preparations (MP); Roots Deep Gel (RD), Endo Roots Soluble (ER), Myco Apply (MA), Bio-one (BO) and Biovam were applied. Scions were grafted on rootstocks by omega table grafting machine and then grafted cuttings were stored for three weeks at stratification room. The grafted cuttings were planted into polyethylene bags (12 × 20 cm size) containing 1:1 sterile perlite-peat mixture. Grafted cuttings were kept in greenhouse during 2 months for growing. After grapevine final take rates were determined, grapevine saplings were transferred to acclimatization environment. Root fresh and dry weights of grapevine saplings were detected in the first week of September. Research was designed according to completely randomized plot as three replications and as 50 grafted cuttings each plot. At the end of study, it was determined that both MP applications and rootstocks have a significant effect on final take and sapling quality. The ratios of first grade sapling varied from 21.5% to 93.3% in first year and from 10.3% to 79.3% in second year. Effects of MP applications on the total final take ratios differed depending on the rootstocks in both years. MP applications showed significant effect on total final take ratios of 110 R and 41 B in the first year, and total final take ratios of 5 BB, 41 B and 140 Ru in the second year. While the best results were obtained from MA, EN, RD applications in the first year, the highest final take ratios were in EN, RD and BO applications in the second year. The highest value on final take was obtained from 5BB rootstock, while the lowest value was recorded in 140 Ru rootstock. Effect of MP applications on the fresh and dry weight of root changed according to rootstocks.
Показать больше [+] Меньше [-]Some Observations on Relationships of the Liver, Ovary and Body Weights for Pipefish Species at the Lake Bafa Coasts (Muğla) Полный текст
2019
Sule Gurkan | Ertan Taskavak | Deniz Innal
This study aims to determine various relationships between liver, gonad and body weights of the two pipefish species caught in two breeding seasons from the Bafa Lake (Muğla) coasts between 2014 -2016. Using beach seine-net in the lake, a total of 208 pipefish specimens (79 Synathus abaster and 129 Synathus acus) were sampled. L-W relationship and Fulton condition factor were W = 2E - 0.94.01, 0.035 ± 0.009 in S.abaster specimens. Also LW relationships and condition factor were W = 8E-0.93.83 , 0.033 ± 0.01 in S. acus. On the other hand mean ± SD of HSI and GSI values were 2.18 ± 1.65 and 7.69 ± 7.12 respectively. In S.acus values 3.22 ± 3.13 and 5.49 ± 5.12 as well. The decrease in HIS and K values, provides sufficient information to claim that species in the lake spend all energy requirement obtained with proper feeding to growth and gonad development.
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