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Determination of The Physical, Physio-Chemical and Chemical Properties of Gilaburu Fruits (Viburnum opulus) Dried by Convectional Drying Technique 全文
2021
Fatma Fulya Dal | Erkan Karacabey
Our country has many species in fruit and vegetable cultivation. One of them is Gilaburu fruit (Viburnum Opulus), which has spread to different regions, especially in Kayseri. Longer preservation of products in fruits and vegetables; Drying process has been applied since ancient times to prevent deterioration caused by microbial and/or biochemical changes. One of them and the most common one is convectional drying in other words drying in a drying chamber under controlled hot air stream. In this study, Gilaburu fruits were obtained from a local producer in Kayseri. Drying processes were carried out in a convectional oven at 60, 70 and 80℃ in three repetitions. The effects of different drying conditions on the drying characteristics of Gilaburu fruits were examined. Drying time for Gilaburu fruits decreased with increasing temperature. As a color parameter total color change with respective to fresh fruit (ΔΕ) was investigated. The results indicated that it remained almost identical with temperature change. Similar trend was observed for rehydration rate. Titration acidity and pH values showed compatible changes. With temperature increase, titration acidity increased, as pH decreased. As textural properties, skin-hardness and elasticity of dried fruits were measured. As hardness increased, elasticity decreased with temperature elevation. Total phenolic content and antioxidant activity of dried samples were also examined. The results showed that there were increases in both of them with an increase in temperature.
显示更多 [+] 显示较少 [-]The Essential Oil Components of Helichrysum pallasii Flowers 全文
2021
Emine Yurteri | Fatih Seyis | Haydar Kuplemez
The genus Helichrysum contains many species displaying therapeutical effects and use in folk medicine. Helichrysum pallasii (Spreng.) Ledeb. is one of these species, used in the region for traditional medicine and ornamental purposes. Plants have been used in the treatment in folk medicines since the earliest times of human history. Chemical composition, antimicrobial and other medicinal properties of plants are being investigated in laboratories throughout the world using the extracts and essential oils derived from medicinal plants. Essential oils are usually complex mixtures of natural compounds of both polar and apolar structure. Essential oils consist mainly of terpenoids and their oxygenated derivatives. Essential oils, which have antioxidant and antimicrobial activities, have therapeutic properties and are the raw materials of cosmetics, as well as acting as natural additives in foods and food products. In this study, the volatile components of the H. pallasii plants were investigated which collected from its natural habitat in the Armutlu district of Bayburt province (Turkey) at the time of flowering. The proportion of essential oils of the plant harvested during the full flowering period and the aromatic components in the essential oil of the plant were determined using the SPME (Solid Phase Microextraction) method in a Gas Chromatography (GC-MS) device. Almost 37 different components were found as a result of the analysis. The main components were found as α-Springene (34.89%), (-)-Isoledene (7.11%), δ-Selinene (5.79%) and Aristolene (5.09).
显示更多 [+] 显示较少 [-]Growth Performance and Carcass Characteristics of Slow Growing Hubbard Red JA57 in Different Raising Systems 全文
2021
Ökkeş Akyar | Beyhan Yeter
In this study, Hubbard Red JA57 genotype, which growing slowly in mixed sex, were examined in indoor (KYS) and free-range raising systems (SYS). The study was carried out at the Kahramanmaraş Sutcu Imam University (KSU), Animal Production Application and Research Center for 12 weeks. Each treatment was represented by 3 groups containing 28 male chick (total 168 chick). During the indoor treatment, the chicks were raised in floor pens in a conventional house (3.7 birds/m2). In the free-range treatment, the chickens were housed in a similar indoor house (3.7 birds/m2); in addition, they also had a free-range clover paddock (0.9 bird/m2). All birds were provided with the same diets as ad-libitum. In two different raising systems; live weight, feed consumption, feed conversion ratio, survival rate, carcass and parts rates, edible giblets weight and rates, testicular weights and rates, rectal temperature and tonic immobility were examined. Results showed that the weekly feed conversion ratio was found to be significant at the 11th week and the additive feed conversion ratio at the 12th week. The difference between the groups in terms of rectal temperature and tonic immobility values, testicular weights and rates were found to be significant. In terms of average interaction; While the average rates of hot carcass, cold carcass, back, breast meat and neck were the same, the averages of thigh, bony breast and wing ratios were different. The highest mean abdominal fat rate was found in KYS females, the highest average gizzard rate in SYS females, the highest mean liver in KYS females, and the highest heart weight in SYS males.
显示更多 [+] 显示较少 [-]Geleneksel Kuru Kaymakların Bazı Kimyasal, Tekstürel, Mikrobiyolojik ve Duyusal Özellikleri 全文
2021
Zehra Albay | Kader Yıldırım | Esma Çapa | Bedia Şimşek
Kuru kaymak, geleneksel kaymağın tandırda ve/veya gölgede kurutulması ile üretilen bir süt ürünüdür. Bu çalışmada, Erzurum ve Nevşehir piyasalarından toplanan Kuru kaymak örneklerinde (10 adet) bazı fiziksel, kimyasal, tekstürel, mikrobiyolojik ve duyusal özelliklerin belirlenmesi amaçlanmıştır. Ayrıca örneklerin görüntüleri, OpenCV (Open Source Computer Vision Library) görüntü işleme kütüphanesi ve C++ dili kullanılarak analiz edilmiştir. Kuru kaymak örneklerinde laktik asit (%) değerinin %0,46-1,21 aralığında ve pH değerinin 6,19-6,83 aralığında değiştiği saptanmıştır. Örneklerin ortalama kurumadde, yağ ve kül içerikleri sırasıyla %71,44, %42,25 ve %2,70 olarak tespit edilmiştir. Yapılan renk ölçümleri ile ortalama L* değerinin 77,42, a* değerinin 2,13 ve b* değerinin 17,44 olduğu belirlenmiştir. Kuru kaymak örneklerinin ortalama sertlik değerinin 1761,37 N, esneklik değerinin 4,30, iç yapışkanlık değerinin 0,64, sakızımsılık değerinin 689,41 N, çiğnenebilirlik değerinin 1212,00 N ve elastikiyet değerinin 0,60 olduğu tespit edilmiştir. Görüntü işleme analizi sonucuna göre örneklerin gözeneklilik durumu %12,27-29,84 aralığında değişmektedir. Mikrobiyolojik değerlendirme sonucunda örneklerde ortalama 3,94 log kob/g maya-küf ve 3,97 log kob/g koliform grubu bakterilerin bulunduğu belirlenmiştir. Ayrıca 4 örnekte Escherichia coli tespit edilmiştir. Görünüş, yapı ve koku parametreleri örneklerde sırasıyla ortalama 5,77, 5,75 ve 5,49 olarak tespit edilmiştir. Bu çalışmada, birbirinden farklı özelliklerde Kuru kaymak örneklerinin olduğu anlaşılmaktadır. Unutulmak üzere olan bu geleneksel süt ürününün özelliklerinin optimize edilmesi, standart ve hijyenik koşullarda üretilmesinin gerekli olduğu düşünülmektedir.
显示更多 [+] 显示较少 [-]Evaluation of Yield and Some Physical Quality Characteristics of Different Oat (Avena sativa L.) Genotypes Under Supplemented Irrigation and Rainfall Conditions 全文
2021
Zeki Mut | Necibe Demirtaş | Özge Doğanay Erbaş Köse
Oat is an important cereal used as human food, animal feed and medicinal plant. This study was conducted to determined yield and some physical quality characteristics of 22 oat genotypes in Turkey in rainfall and supplemented irrigation conditions during 2016-2017 growing season at Yozgat/Yerköy, Turkey. Experiments were carried out in randomized complete block design with three replications. In the trials, plant height, panicle length, grain yield, biological yield, thousand grain weight, hectoliter weight and groat percentage were investigated. İn non-irrigated conditions, plant height, panicle length, grain yield, biological yield, thousand grain weight, hectolitre weight and groat percentage were between 54.2-86.2 cm, 14.1-23.3 cm, 116.9-288.1 kg da-1, 593.1-938.9 kg da-1, 24.1- 38.5 g, 40.4-48.4 kg and 63.5-73.6% whereas in supplemented irrigation conditions, plant height, panicle length, grain yield, biological yield, thousand grain weight, hectolitre weight and groat percentage were 65.0-98.7 cm, 15.3-25.7 cm, 226.1-439.6 kg da-1, 979.2-1381.9 kg da-1, 24.2-39.3 g, 43.5-51.0 kg and 62.5-73.0%, respectively. Supplemented irrigation application increased both grain yield and biological yield approximately 1.5 times compared to application based on rainfall. Genotypes G9, G10, G12, G13, G14, G17, G18, G21 and G22 had the highest grain yield in experiments irrigated with both rainfall and supplemented irrigation.
显示更多 [+] 显示较少 [-]The Effects of Co-Enzyme Q10 and Caffeine on Morphometric Characteristics of Queen Honey Bees 全文
2021
Samet Okuyan | Paul Cross
Honey bee queen quality is a critical factor of colony performance. Indications of such qualities can manifest themselves through morphological traits such as wet weight and thorax width. Improving such characteristics is driven in part by nutritional provision in queen-cell-builder hives. We investigated the potential to improve queen quality by adding coenzyme Q10 (endogenous antioxidant) and caffeine (central nervous system stimulator) to feeder syrup in queen-cell-builder colonies for 15 and 20 days prior to grafting, two sets of queens were reared. We recorded subsequent wet weight, body length, head width and length, thorax and wing width and length, and spermathecae diameter. The queen-cell acceptance rate was not affected by either treatment or graft period. Coenzyme Q10 increased wet weight, body and wing length in the first graft, and thorax width, wing length and spermathecae diameter in the second graft. The caffeine treatment increased head and thorax length in first graft and thorax width in the second. A mix of the two substances (coenzyme Q10 and caffeine) increased head width in the first graft and spermathecae diameter in the second graft. This study suggests that the application of coenzyme Q10 to cell-builder colonies at least 15 days prior to grafting can increase reared wet weight (the most significant quality indicator) and thorax width of queen bees.
显示更多 [+] 显示较少 [-]Propiyonik Asit Katkısının Toplam Karışım Rasyonu Yemin Aerobik Stabilite Özellikleri Üzerine Etkileri 全文
2021
Ahmet Aslım | Berrin Okuyucu | Fisun Koç
Bu araştırmada, farklı düzeylerde propiyonik asit ilavesinin toplam karışım rasyonu yemin aerobik stabilite özellikleri üzerine etkileri araştırılmıştır. Çalışmada, propiyonik asit temeline dayalı katkı maddesinin dört farklı oranda ilavesinin (%0, 1,5, 3,0 ve 4,5), 26°C ve 30°C depolama koşullarında etkisi araştırılmıştır. Yem örnekleri her muamele grubunda 3’er tekerrür olmak üzere 7 gün süre ile depolanmıştır. Aerobik stabilite süresince yem örneklerinde kimyasal ve mikrobiyolojik parametrelere ilişkin analizler yürütülmüştür. Her muamele grubunda sıcaklık değerleri ve ortam sıcaklığı 7 gün süreyle sıcaklık sensörleri ile ölçülüp kaydedilmiştir. Araştırmada katkı maddesi ilavesi toplam karışım rasyonu yemin pH, kuru madde, nötral çözücülerde çözünmeyen lif ve maya içeriklerini düşürmüş, ham protein, ham yağ, suda çözünebilir, laktik asit ve laktik asit bakteri içeriklerini yükseltmiş, küf gelişimini ise önlemiştir. Araştırma sonucunda %4,5 oranında propiyonik asit ilavesi toplam karışım rasyonunun 26°C 7 gün, 30°C ise 5 gün süre ile stabil kalmasını sağlamıştır.
显示更多 [+] 显示较少 [-]Aquaculture State, Challenges and Technologies in the Middle East 全文
2021
Shaima Ibrahim Alameri | Maitha Ahmed Almakhmari | Sathiya Maran | Reem Yousef Almansoori | Sabra Ahmed AlQubaisi | Aisha Abushelaibi | Kok Song Lai | Swee Hua Erin Lim
The aquaculture industry in the Middle East (ME) is still relatively new compared to other parts of the world, making this region highly dependent on other countries for the production of food and feed needs. Aquaculture activities in the world at current is mainly focused in China; this may be propelled by its own internal demand for seafood as determined by the United Nations Food and Agriculture Organization (FAO). Challenges faced in the ME has not been elucidated so far and the issues arising might be unique only to this region due to aquaculture being in the initial stages coupled with water access and limitations, climate and geography, in addition to pollution. This review paper will present and discuss global needs for seafood focusing later on the needs in the ME, followed by a discourse into the importance, types and challenges of aquaculture in the ME. Baseline knowledge and infrastructure to enhance knowledge is a pressing need at this stage of infancy. It is hope this sector will continue to develop, and with the support of stakeholders, aquaculture in the ME will achieve a state of independence.
显示更多 [+] 显示较少 [-]A Research on the Comparative Effect of Active Dry Yeast and Inactivated-Stabilized Probiotic Yeast (Thepax) Added at Different Levels to Diets on Broiler Performance 全文
2021
Süleyman Çalışlar | Rahmi Kanat
This experiment was conducted to determine the effect of active yeast (AY) and inactive-stabilized yeast (Thepax) supplementation to the rations in different levels on broiler performance. In the experiment carried out according to the randomized plot design, there were 5 different treatment groups as control group (Group 1), 0.1% Thepax (Group 2), 0.2% Thepax (Group 3), 0.1% AY (Group 4) and 0.2% AY (Group 5). In the experiment, the effects of active and inactive yeasts on body weight gain (BWG), feed consumption, feed conversion rate, carcass weight (CW), carcass yield (CY), abdominal fat amount and mortality were investigated. In the present experiment, the final live weight, the cumulative feed consumption and feed conversion were insignificant. The statistical difference between the groups in the experiment was significant in carcass weight, but insignificant in the amount of abdominal fat and mortality rate. Inactive-stabilized yeast (Thepax 0.1%) was more effective than 0.2% AY on BWG. Only 0.1% Thepax increased the CW besides CY was high in 0.1%, 0.2% Thepax and 0.1% AY groups. It has been observed that active and inactive yeasts are used in broiler chickens without any problem.
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