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Efficient Energy Systems Models for Sustainable Food Processing Full text
2019
Azim Doğuş Tuncer | Rukiye Mavuş | Cemre Gökçe | Meltem Koşan | Mustafa Aktaş
The improvement and use of sustainable energy technologies are developing by the reason of increasing energy demand. Due to the fossil fuels negative effects on the environment, energy efficient building and their industrial applications have become an important research topic. To increase energy efficiency in the food industry, the reduction of specific energy consumption is needed. Food production facilities using energy for heating, cooling, drying, and specific processes which requires high temperature. In this study, six energy system models have been suggested, and presented for the use in food processing applications. These models are based on renewable energy, waste heat management, solar energy, and efficient heat pump, ice storage heat pump, thermal energy storage heat pump, drying with heat recovery and dehumidification. In addition to carbon footprint reductant, the latest trend technologies are presented and the advantages are also discussed. Especially hybrid systems that are combined with phase change materials and biomass are investigated.
Show more [+] Less [-]Evaluation of Nutritional and Medicinal Values of Edible Wild and Cultivated Pleurotus ostreatus Full text
2019
Sanem Bulam | Nebahat Şule Üstün | Aysun Pekşen
Because of its high nutritional value and pharmaceutical effects, oyster mushroom (Pleurotus ostreatus (Jacq. ex Fr.) P. Kumm.) is collected from nature and cultivated in large scale. This therapeutic mushroom is consumed as a functional food or food additive in soups, cereal and dairy products, and commercially used in nutraceuticals and dietary supplements. The mycochemicals including polysaccharides (crude fiber and β-glucans), essential amino acids, ergothioneine, peptides, (glyco)proteins, lectins, phenolic compounds, polyketides (lovastatin), (tri)terpenoids, and enzymes are naturally found in the fruiting bodies and mycelial biomass of P. ostreatus. The major bioactive compounds concentration of this mushroom may be increased by modification of the substrate composition and cultivation or postharvest conditions. The goal of this review is to evaluate the results of the studies about the biochemical composition and medicinal properties of edible wild and cultivated P. ostreatus. Furthermore, the advanced novel cultivation techniques, biotechnological processes, and postharvest treatments were given in order to increase its nutritional and nutraceutical values.
Show more [+] Less [-]Using EPM Model and GIS for Estimation of Soil Erosion in Souss Basin, Morocco Full text
2019
Argaz Ahmed | Darkaoui Adil | Bikhtar Hasna | Ayouch Elbachir | Ramdan Lazaar
The study is aimed at predicting soil erosion and investigate its spatial distribution in Souss basin area used EPM (erosion potential model), also known as Gavrilovic method, incorporating into GIS (geographic information system) software. The spatial distribution of soil erosion shows three main zones in the studied area (very slight, slight to moderate). The main factors in the EPM (soil erodibility, soil protection, slope, temperature and rainfall) were evaluated using GIS software. Data layers used in this study were created from digital elevation model (DEM), lithology maps, landsat 8 oli digital images, the highest amount of erosion occurred in the northeast regions, Results showed that about 87.84% of the study area is classified in low and very low to destructive erosion intensify, 12.15% of the study area was moderate potential soil losses.
Show more [+] Less [-]Determination of Seasonal Changes in the Fat and Fatty Acid Profiles of Saurida lessepsianus (Russell, Golani and Tikochinski, 2015) Caught from Mersin Bay Full text
2019
Mısra Bakan | Elif Ayşe Erdoğan Eliuz | Deniz Ayas
In this study, seasonal changes in the lipid and fatty acid profiles of S. lessepsianus caught from the Mersin Bay were investigated. The total lipid levels of S. lessepsianus were found to be 2.94%, 7.19%, 2.45%, 0.83%, in spring, summer, autumn and winter season, respectively. Major fatty acids in S. lessepsianus were palmitic acid, stearic acid, oleic acid, palmitoleic acid, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in all seasons. The highest values of palmitic, palmitoleic and EPA were determined as 22.97%, 3.80% and 4.22% in spring, respectively. The highest values of stearic and oleic acid were determined as 15.93% and 7.84% in autumn, respectively. The highest value of DHA were also determined as 31.91% in winter season. The EPA level from polyunsaturated fatty acids was found in the range of 2.54-4.22% (23.09-195.62 mg/100g). The highest level of DHA were observed in the winter season and its levels changed in the range of 19.83-31.81% and was calculated as 201.29-1301.73 mg/100g. In addition, the highest level of the Σn3, Σn6, and Σn9 were calculated in the summer season as 1516.39, 114.88, 399.77 mg/100g, respectively. This report showed that fat and fatty acid profiles of S. lessepsianus are quite influenced by seasonal factors.
Show more [+] Less [-]Paradox of Food and Nutrition Insecurity in Food Surplus Area of Haramaya District, Eastern Ethiopia Full text
2019
Daniel Alemu Gobena | Anbesse Girma
Food and nutrition insecurity are inability to access adequate amount of nutritious foods to meet dietary needs for a productive and healthy life. However, food and nutrition insecurity, in some part of Ethiopia, is very high though food is not scarce. Therefore, a survey was conducted to investigate food consumption and dietary habits of the population in the district. A questionnaire and focus group discussions were used for data collection. Data were collected on available food sources and habits of consumption in purposively selected four kebeles in the district. Data were specifically collected on utilization and eating habit of cereal grains, legumes, fruit, vegetables, and animal food sources. A total of 150 representative sample households were interviewed based on the population size of the study area. The result obtained from the survey indicated that cereal grains (34.9%), legumes & pulses (28.5%), fruit & vegetables (16.8%), meat and poultry (19.8%) products are commonly produced in many parts of the study area. The study indicated that the population entirely consumes cereal grains that are mainly sources of carbohydrate, with minimal consumption of other food types. Though there are surplus food items in the study area, there is poor utilization and undiversified consumption habit. This indicates that the area is vulnerable for food and nutrition insecurity. Therefore, knowledge on proper utilization of local existing food sources for enhancing food and nutrition security is essential. Awareness creation on benefits and preparation of balanced diet at household level from local food sources is a vital to improve food and nutrition security in the study area.
Show more [+] Less [-]Current Situation, Problems and Solution of Dairy Cattle Enterprises in Uşak Province Full text
2019
Sibel Alapala Demirhan | Mevlüt Yenilmez
In this study, it was aimed to determine the organizational structure, current state and problems of the dairy cattle breeding enterprises in the province of Uşak and to develop solutions to these problems according to the number of cattle they have. In the study, a questionnaire consisting of 95 questions was applied to 165 enterprises owners selected by multi-stage random sampling method and the obtained data were evaluated with the help of SPSS program package. Enterprises are grouped by animal assets; the enterprises having 1-9 heads cattle were classified as the first group, the enterprises having 10-20 heads cattle were classified as the second group and the enterprises having 21 heads and more cattle were classified as the third group. It was found that the daily milk yield varies significantly among the groups. It was determined that 16.80 kg/day in the 1st group, 19.50 kg/day in the 2nd group and 22.60 kg/day milk yield was obtained in the 3rd group. It was determined that many activities and parameters related cattle production in the 3rd group are highly good. However, it was determined that the main problems experienced particularly in small-scale enterprises are the supply of concentrate feed and coarse fodder, high cost of basic inputs such as feed and failure in marketing the produced products at a value price. It can be suggested that if the feed intake is supplied within the organization and the produced products are directly marketed, then these problems can be alleviated. It has been determined that dairy cattle businesses, which are mostly small scale family type enterprises in Uşak province, should be developed to large scale commercial enterprises where intensive production is carried out by providing various incentives and support.
Show more [+] Less [-]Phylogenetic Analysis of Chrysochamela (Fenzl) Boiss. (Brassicaceae) Taxa Growing in Turkey Full text
2019
Emre Sevindik | Mehmet Yavuz Paksoy | Feyzanur Topseçer | Melike Aydoğan
In this study, we performed a genetic diversity analysis using RAPD (Random Amplified Polymorphic DNA) and ISSR (Inter simple sequence repeat) markers for some Chrysochamela species growing in Turkey. PCR was performed using RAPD and ISSR primers and genomic DNA samples from each specimen, and the resulting bands were scored. Phylogenetic relationships and genetic distances between the studied taxa were calculated using the PAUP analysis program. According to the RAPD analysis, the closest genetic distance was found to be 0.20000 between C. noeana populations, while the most distant values were found as 0.60000 between C. noeana and C. elliptica. The ISSR analysis also revealed the closest genetic distance as 0.34043 between C. noeana populations, while the most distant values were found to be 0.55319 between C. noeana and C. elliptica. UPGMA (unweighted pair group method with arithmetic mean) dendrogram generated for both RAPD and ISSR analyses consisted of two groups. As a result, it was found that RAPD data were more appropriate for comparison with the previous anatomical and morphological data of the studied taxa.
Show more [+] Less [-]The Effects on Final Take and Root Quality of Mychorrizal Preparations in Grafted Vine Sapling Production Full text
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.
Show more [+] Less [-]Isparta Koşullarında Yetiştirilen Kırmızı Mercimek Çeşitlerinin Verim ve Verim Öğelerinin Belirlenmesi Full text
2019
Ayşegül Beşok Küçükay | Aykut Şener | Muharrem Kaya
Bu araştırma, Türkiye’de tescilli bazı kırmızı mercimek çeşitlerinin Isparta ekolojisinde verim ve verim unsurlarının belirlenmesi için 2016 - 2017 yıllarında yürütülmüştür. Bu amaçla, 11 adet tescilli kırmızı mercimek çeşidinde bitki boyu, ilk bakla bağlama yüksekliği, bitkide bakla ve tane sayısı, bitki verimi, biyolojik verimi, birim alan tane verimi, yüz tane ağırlığı, su alma kapasitesi ve tane protein oranı özellikleri incelenmiştir. Varyans analiz sonuçlarına göre, incelenen tüm özelliklerde çeşitler arasında istatistiki yönden önemli farklılıklar bulunmuştur. Araştırma sonuçlarına göre, çeşitlerin ortalaması olarak bitki boyu 27,50-32,80 cm, ilk bakla yüksekliği 9,23-20,20 cm, bitkide bakla sayısı 30,13-50,73 adet, bitkide tane sayısı 40,96-64,70 adet, bitki tane verimi 0,49-2,07 g, biyolojik verimi 223,8-506,9 kg/da, birim alan tane verimi 66,0-195,8 kg/da, yüz tane ağırlığı 2,91-3,64 g, su alma kapasitesi 0,027-0,033 g/tane ve protein oranı %27,68-32,27 arasında değişim göstermiştir. Kırmızı mercimek çeşitleri arasında en yüksek birim alan tane verimine Çiftçi çeşidi sahip olmuştur. Kafkas çeşidi ikinci sırada yer almakla birlikte; bu çeşidin ilk bakla bağlama yüksekliği makineli hasat için önerilen 12 cm sınırında olması, önemli bir dezavantaj olarak görülmüştür. Sonuç olarak, Isparta ili ve benzer ekolojik koşullara sahip yörelerde kırmızı mercimek tarımının yapılabileceği, kırmızı mercimek tarımında tane ve protein verimini arttırmak için Çiftçi kırmızı mercimek çeşidinin önerilebileceği sonucuna varılmıştır.
Show more [+] Less [-]Effect of Ultrasound Washing Process on the Quality Parameters of Fresh Strawberry during Cold Storage Full text
2019
Ahmet Görgüç | Esra Gençdağ | Seçil Tecimen | Sena Anakız | Senem Öztürk Köse | Hacı Halil Bıyık | Fatih Mehmet Yılmaz
Strawberry is one of the most preferred fruits all over the world due to its characteristic properties. Due to the morphological structure of fresh strawberries after harvesting, quality losses are observed during cold storage. Therefore, industrial washing of fresh strawberries is especially important for reducing microbial load and increasing shelf life. Demand for the new methods as an alternative to the chemicals used in industrial washing of fruits and vegetables is increasing due to consumer-related health concerns. Ultrasonic washing is a preferred innovative method in terms of reducing the microbial load and maintaining quality properties compared to chemical washing processes. In this study, fresh strawberries were washed with ultrasound (550 W/35 kHz) and peroxyacetic acid (40 ppm) after harvesting. The pH, total acidity, water soluble dry matter (brix), vitamin C, total phenolic content, antioxidant capacity, total viable, mold and yeast count analyses were performed in every two days during 14 days of cold storage of washed strawberries. Ultrasonic washing was found to be more effective in reducing microbial load and preserving bioactive properties of strawberries compared to other method due to its cavitation effect.
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