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Taşköprü Sarımsağında Üretim Alışkanlıkları ve Sorunları 全文
2024
Hüseyin Güran Ünal
Dünya’da ve Türkiye’de sarımsak üretimi ve tüketimi artmaktadır. Fakat Türkiye’nin dünya sarımsak üretimi içindeki payı geçtiğimiz 30 yılda %4 den %0.4 seviyesine gerilemiştir. Benzer şekilde coğrafi işaret sahibi Kastamonu sarımsağının Türkiye üretimindeki payı da %25 seviyesinden %20 seviyesine gerilemiştir. Bu çalışmada Kastamonu’daki sarımsak üreticileri ile yüz yüze anket çalışması yapılarak üretim teknikleri ve sorunları incelenmiştir. Elde edilen veriler ışığında üretici profili ve uygulama alışkanlıkları masaya yatırılmıştır. Üretimde mekanizasyon düzeyi artmakla birlikte, üretimin her safhasında yüksek işgücü gereksinimi devam etmektedir. Küçük parsellerde, yüksek kimyasal girdilerle bilinçsiz üretim söz konusudur. Sarımsaklar ilkel depolama koşullarında saklanmakta ve kayıplar oluşmaktadır. Bölgede herhangi bir üretim planlaması olmayıp, üretim ve satışa dair ortak bir oluşum bulunmamaktadır.
显示更多 [+] 显示较少 [-]Bitkisel Sütlerin Gıda Endüstrisindeki Önemi Ve Mikrobiyal Güvenliğinin Sağlanması 全文
2024
Ulaş Baysan
Bitkisel Sütlerin Gıda Endüstrisindeki Önemi Ve Mikrobiyal Güvenliğinin Sağlanması 全文
2024
Ulaş Baysan
Dünya genelinde insanlarda sağlıklı tüketim farkındalığının oluşmasıyla zengin besin içeriklerine sahip bitkisel sütlere yönelim artmaktadır. Tüketicilerden laktoz intoleransı, kalori endişesi ve hiperkolesterolemi olanlarında rahatça tüketimine imkan sağlaması ile tüketici taleplerinden enerjiyi artırıcı, yaşlanmayla mücadele, yorgunluk ve stres azaltıcı etkilerine yanıt olabilme potansiyelinden dolayı bitkisel süt üretiminin ve tüketiminin artması beklenmektedir. Bu derleme çalışmasında bitkisel sütlerin üretim aşamaları ele alınarak, bu üretim basamaklarının son ürün üzerine etkileri değerlendirilmiştir. Bitkisel sütlerde besin içeriklerinin zengin olmasından kaynaklı olarak bozulmayan sebep olan mikroorganizmaların büyümesinin önlenebilmesi için ısıl işlem gereklilikleri incelenmiştir. Bitkisel sütlerde bozulmaya sebep olan mikroorganizmaların inhibisyonu için uygulanan yenilikçi ısıl ve ısıl olmayan teknolojiler ele alınmıştır. Gelişen yenilikçi teknolojiler ile bitkisel sütlerin mikrobiyal güvenliğini sağlanmasının yanısıra kalite özelliklerinin de korunması önem kazanmaktadır. Sonuç olarak Dünya’da ve ülkemizde popüler olmaya başlayan bitkisel sütlerin; yeni teknolojiler ile birlikte gıda endüstrisinde yaygınlaşma potansiyeli yüksektir.
显示更多 [+] 显示较少 [-]Plant growth evaluation of Cajanus cajan (L.) Millsp., Canavalia ensiformis (L.) DC. and Cratylia argentea (Desvaux) O. Kuntze., in soils degraded by sand and gravel extraction 全文
2017
Vargas-Zapata, Mateo | López-Isaza, Juan Guillermo | Restrepo-Betancur, Luis Fernando | Ayala-Lopera, Silvio | Medina-Sierra, Marisol
Resumen El presente estudio evaluó la adaptabilidad de las especies guandul (Cajanus cajan (L.) Millsp), canavalia (Canavalia ensiformis (L.) DC. y veranera (Cratylia argentea (Desvaux) O. Kuntze); a suelos degradados por la extracción de arena y grava. Las tres especies se sembraron en bolsas de 20cm x 10cm cada una con tres semillas, en un sustrato de suelo y arena en una relación 2:1 respectivamente. Las plantas se mantuvieron bajo polisombra del 50% durante 60 días, con una frecuencia de riego dependiendo de las condiciones climáticas. Posteriormente se trasplantaron a campo, allí se realizaron mediciones de las variables altura de la planta (ALP), hojas completamente desarrolladas (HCD) y diámetro del tallo (D) cada semana durante 10 semanas. El análisis se realizó mediante un diseño en bloques aleatorizados efecto fijo balanceado. Por medio de cuatro repeticiones para cada especie, se incluyó la técnica MANOVA con contraste ortogonal, el método de la máxima verosimilitud para establecer la dimensionalidad del contraste y las comparaciones unidimensionales se realizaron por método de Tukey teniendo como error tipo I un 5% de significancia estadística. Se obtuvo diferencia significativa entre las especies para la variable ALP (p<0.05). La variable diámetro presentó diferencias a partir de la tercera semana para las tres especies evaluadas (p<0.05). Se encontró una relación altamente significativa y directamente proporcional entre las variables ALP, HCD y D (p<0.0001). El análisis multivariado MANOVA mostró una diferencia altamente significativa entre las tres especies (p<0.0001) lo cual confirma la hipótesis de que las especies se desarrollaran y crecieran a pesar de las condiciones del área de estudio. | Abstract In this research, the adaptability of pigeon pea (Cajanus cajan (L.) Millsp., canavalia (Canavalia ensiformis (L.) DC.) and veranera (Cratylia argentea (Desvaux) O. Kuntze) species, was evaluated in soils degraded by sand and gravel extraction. The three species were planted in bags as follows: 20 x 10cm, each with 3 seeds, with a substrate 2:1 soil and sand, respectively. The plants were grown under shadow conditions with 50% for 60 days, and received irrigation according to climate conditions. Therefore, were transplanted at field conditions, plant height (PH), fully developed leaves (FDL) and stem diameter (SD) variables, were measured every week for 10 weeks. A randomized block design was used with a fixed balanced effect. The number of replicates per treatment was four, the multivariate technique MANOVA variance with orthogonal type was included and the method of maximum likelihood was used to establish the dimensionality of the contrast. In fact, one-dimensional comparisons were carried out using Tukey method, which had achieved type I error of 5% statistical significance. Significant difference among plants for PH (p<0.05) variable was obtained. In addition, SD variable showed differences from the third week for all evaluated plants (p<0.05). A highly significant and directly proportional relationship among HP, FDL and SD variables (p<0.0001), was found. MANOVA Multivariate Analysis showed a highly significant difference among evaluated species (p<0.0001), which confirms the hypothesis. It was expected that species were developing and growing despite having contrasting conditions in the study area.
显示更多 [+] 显示较少 [-]Plant growth evaluation of Cajanus cajan (L.) Millsp., Canavalia ensiformis (L.) DC. and Cratylia argentea (Desvaux) O. Kuntze., in soils degraded by sand and gravel extraction | Evaluación del crecimiento de Cajanus cajan (L.) Millsp, Canavalia ensiformis (L.) DC. y Cratylia argentea (Desvaux) O. Kuntze., en suelos degradados por la extracción de arena y grava 全文
2017
Vargas Zapata, Mateo | López Isaza, Juan Guillermo | Restrepo Betancur, Luis Fernando | Ayala Lopera, Silvio Antonio | Medina Sierra, Marisol | Grupo de Investigación en Ciencias Agrarias -GRICA-
ABSTRACT: In this research, the adaptability of pigeon pea (Cajanus cajan (L.) Millsp., canavalia (Canavalia ensiformis (L.) DC.) and veranera (Cratylia argentea (Desvaux) O. Kuntze) species, was evaluated in soils degraded by sand and gravel extraction. The three species were planted in bags as follows: 20 x 10cm, each with 3 seeds, with a substrate 2:1 soil and sand, respectively. The plants were grown under shadow conditions with 50% for 60 days, and received irrigation according to climate conditions. Therefore, were transplanted at field conditions, plant height (PH), fully developed leaves (FDL) and stem diameter (SD) variables, were measured every week for 10 weeks. A randomized block design was used with a fixed balanced effect. The number of replicates per treatment was four, the multivariate technique MANOVA variance with orthogonal type was included and the method of maximum likelihood was used to establish the dimensionality of the contrast. In fact, one-dimensional comparisons were carried out using Tukey method, which had achieved type I error of 5% statistical significance. Significant difference among plants for PH (p<0.05) variable was obtained. In addition, SD variable showed differences from the third week for all evaluated plants (p<0.05). A highly significant and directly proportional relationship among HP, FDL and SD variables (p<0.0001), was found. MANOVA Multivariate Analysis showed a highly significant difference among evaluated species (p<0.0001), which confirms the hypothesis. It was expected that species were developing and growing despite having contrasting conditions in the study area. | RESUMEN: El presente estudio evaluó la adaptabilidad de las especies guandul (Cajanus cajan (L.) Millsp), canavalia (Canavalia ensiformis (L.) DC. y veranera (Cratylia argentea (Desvaux) O. Kuntze); a suelos degradados por la extracción de arena y grava. Las tres especies se sembraron en bolsas de 20cm x 10cm cada una con tres semillas, en un sustrato de suelo y arena en una relación 2:1 respectivamente. Las plantas se mantuvieron bajo polisombra del 50% durante 60 días, con una frecuencia de riego dependiendo de las condiciones climáticas. Posteriormente se trasplantaron a campo, allí se realizaron mediciones de las variables altura de la planta (ALP), hojas completamente desarrolladas (HCD) y diámetro del tallo (D) cada semana durante 10 semanas. El análisis se realizó mediante un diseño en bloques aleatorizados efecto fijo balanceado. Por medio de cuatro repeticiones para cada especie, se incluyó la técnica MANOVA con contraste ortogonal, el método de la máxima verosimilitud para establecer la dimensionalidad del contraste y las comparaciones unidimensionales se realizaron por método de Tukey teniendo como error tipo I un 5% de significancia estadística. Se obtuvo diferencia significativa entre las especies para la variable ALP (p<0.05). La variable diámetro presentó diferencias a partir de la tercera semana para las tres especies evaluadas (p<0.05). Se encontró una relación altamente significativa y directamente proporcional entre las variables ALP, HCD y D (p<0.0001). El análisis multivariado MANOVA mostró una diferencia altamente significativa entre las tres especies (p<0.0001) lo cual confirma la hipótesis de que las especies se desarrollaran y crecieran a pesar de las condiciones del área de estudio. | COL0009556
显示更多 [+] 显示较少 [-]Plant growth evaluation of Cajanus cajan (L.) Millsp., Canavalia ensiformis (L.) DC. and Cratylia argentea (Desvaux) O. Kuntze., in soils degraded by sand and gravel extraction 全文
2017
Vargas Zapata, Mateo | Lopez Isaza, Juan Guillermo | Restrepo Betancur, Luis Fernando | Ayala Lopera, Silvio Antonio | Medina Sierra, Marisol
In this research, the adaptability of pigeon pea (Cajanus cajan (L.) Millsp., canavalia (Canavalia ensiformis (L.) DC.) and veranera (Cratylia argentea (Desvaux) O. Kuntze) species, was evaluated in soils degraded by sand and gravel extraction. The three species were planted in bags as follows: 20 x 10cm, each with 3 seeds, with a substrate 2:1 soil and sand, respectively. The plants were grown under shadow conditions with 50% for 60 days, and received irrigation according to climate conditions. Therefore, were transplanted at field conditions, plant height (PH), fully developed leaves (FDL) and stem diameter (SD) variables, were measured every week for 10 weeks. A randomized block design was used with a fixed balanced effect. The number of replicates per treatment was four, the multivariate technique MANOVA variance with orthogonal type was included and the method of maximum likelihood was used to establish the dimensionality of the contrast. In fact, one-dimensional comparisons were carried out using Tukey method, which had achieved type I error of 5% statistical significance. Significant difference among plants for PH (p<0.05) variable was obtained. In addition, SD variable showed differences from the third week for all evaluated plants (p<0.05). A highly significant and directly proportional relationship among HP, FDL and SD variables (p<0.0001), was found. MANOVA Multivariate Analysis showed a highly significant difference among evaluated species (p<0.0001), which confirms the hypothesis. It was expected that species were developing and growing despite having contrasting conditions in the study area.
显示更多 [+] 显示较少 [-]The Extent and Patterns of Digitalization in Proactive Land Acquisition Strategy (PLAS) Farms in South Africa 全文
2024
Sukoluhle Mazwane | Moraka Nakedi Makhura | Athula Ginige
The Extent and Patterns of Digitalization in Proactive Land Acquisition Strategy (PLAS) Farms in South Africa 全文
2024
Sukoluhle Mazwane | Moraka Nakedi Makhura | Athula Ginige
This study sought to develop an index for agricultural digitalization by applying composite confirmatory analysis (CCA). Another aim was to determine the factors that affect the development of digitalization in PLAS farms. Data on the indicators of the three dimensions of digitalization were collected from 300 Proactive Land Acquisition Strategy (PLAS) farms in South Africa using semi-structured questionnaires. Confirmatory composite analysis (CCA) was employed to reduce the items into three digitalization dimensions and ultimately to a digitalization index. Standardized digitalization index scores were extracted and fitted to a linear regression model to determine the factors affecting digitalization. The results revealed that the model shows practical validity and can be used to measure digitalization as measures of fit (geodesic distance, standardized root mean square residual, and squared Euclidean distance) were all below their respective 95%quantiles of bootstrap discrepancies (HI95 values). Therefore, digitalization is an emergent variable that can be measured using CCA. The average level of digitalization in PLAS farms was 0.02 and varied significantly across provinces. Although farmers have attempted to digitalise their farms, there are still minimal levels of digitalization in PLAS farms. The results further reveal different digitalization patterns. As judged by the estimated weights of various dimensions of digitalization, the use of digital technologies to collect, store, analyse, and disseminate (CSAD) farm-related data contributed more towards the digitalization index. The second most important component of digitalization was automation digitalization. In contrast, value chain digitalization was the least significant contributor. The factors that significantly influence digitalization were age, gender, farm type, network type, and cellular data type. Since PLAS farmers have not embraced much digitalization, it is important to focus on awareness and capacity building. A balanced approach to digitalization would benefit PLAS farms by ensuring that strategies to integrate digital solutions within the value chain are developed. To foster and support the digitalization in PLAS farms, policymakers and stakeholders should tailor their strategies to fit specific socioeconomic factors.
显示更多 [+] 显示较少 [-]The Evaluation of Implementation of Agricultural Sustainable Development Policy in the European Union 全文
2018
Krzyżanowski, Julian T.
Author tries to evaluate two elements of implementation of agricultural sustainable development policy in the European Union. Those elements are: “greening” and European innovation partnership. Greening is carried out by: crop diversification, maintenance of permanent grassland (PG), maintenance of ecological focus areas (EFA). Diversification of crops was carried out for three fourth of areas of arable lands in the EU. Diversification prevents soil erosion. Share of PG in the overall area of agricultural land in the EU is 29 %. The highest indicator is at present in the United Kingdom (90%), and the lowest in Cyprus, Malta, Denmark and Finland. From the set of actions maintaining the pro-environmental areas (EFA), the most popular were: setting aside (27 member states), and the least popular – afforestation (only 11 countries). When it comes to EFA area, the biggest share was the area for legume plants. New pro-environmental instrument is European Innovation Partnership for productive and sustainable agriculture. There has already been some results of this action in the EU countries.
显示更多 [+] 显示较少 [-]Combining Pasture- and Animal-Based Factors to Predict Herbage or Dry Matter Intake of Lambs Grazing on Cocksfoot, Meadow Fescue and Tall Fescue Pastures 全文
2024
Ahmet Akdağ | Nuh Ocak | İbrahim Aydın
In this study, it was aimed to establish the correlations between actual dry matter intake (DMI) and some animal (body weight, (BW)) and pasture (crude protein (CP); neutral detergent fiber (NDF); in vitro dry matter digestibility (IVDMD); dry matter yield (DMY); herbage allowance (HA); herbage mass (HM); metabolizable energy (ME); relative forage quality (RFQ); total digestible nutrients (TDN)) based factors to formulate precise regression equations for DMI prediction. For this purpose, data (n = 36, 2 years × 3 blocks × 6 data collection) were utilized for two grazing seasons (2020–2021) on cocksfoot (Dactylis glomerata), meadow fescue (Festuca pratensis) and tall fescue (Festuca arundinacea) mixed pastures with Karayaka male lambs at an average age of 2 months for 60 days in each season. Positive correlations were determined between DMI and BW (0.777), HA (0.814), DMY (0.844), and NDF (0.609), while DMI had negative correlations with IVDMD (-0.738), RFQ (-0.357), CP (-0.209), TDN (-0.177) and ME (-0.039). In addition, animal and pasture–based factors were evaluated by principal component analysis to determine the in–cooperating variables in variance. As a result, equations were developed by using parameters with high correlation coefficient and the best–fit 3 equations for predicting DMI of lambs grazing cocksfoot, meadow fescue and tall fescue pastures: (I) -1224.09 + 39.90BW (kg) + 33.69HA (kg DM/ kg BW) + 8.22NDF (% of DM), r2=0.815, II) -701.47 + 18.96BW (kg) + 673.61DMY (kg/ per square meters) + 8.19NDF (% of DM), r2=0.807, III) -325.32 + 43.49HA (kg DM/kg BW)-2.21IVDMD (%) + 8.57NDF (%), r2=0.786).
显示更多 [+] 显示较少 [-]Effect of Initial pH on the Microbial Growth, Final pH Value, Crude Protein and Ash Level of Agaricus bisporus Cap and Stem in Submerged Fermentation 全文
2024
Bahar Güngör | Şevket Özlü | Emrah Güngör | Aydın Altop | Güray Erener
Effect of Initial pH on the Microbial Growth, Final pH Value, Crude Protein and Ash Level of Agaricus bisporus Cap and Stem in Submerged Fermentation 全文
2024
Bahar Güngör | Şevket Özlü | Emrah Güngör | Aydın Altop | Güray Erener
The aim of the study was to investigate the effect of submerged fermentation with Lactobacillus spp. on the nutritional composition of Agaricus bisporus cap and stem. Fresh A. bisporus was provided, and the cap and stem parts were separated and cut into small pieces. Afterward, distilled water (400 ml) and urea (8.4 g) were added to the mushroom parts (100 g) and placed in different fermentation flasks. The fermentation flasks containing mushroom caps or stems were divided into two groups, and the pH levels of the fermentation medium were adjusted to 6 and 7. Fermentation flasks were autoclaved at 121°C for 15 minutes and Lactobacillus spp. was inoculated to each flask at 1 ml (108 CFU/ml). A positive control group was formed by allocating one uninoculated flask for each replicate of each pH value. Fermentation flasks were incubated for 48 hours at 30°C. After fermentation, fermented and inoculated mushroom cap and stem were analyzed to determine the crude protein, ash content, Lactobacillus spp. count and pH value. Lactobacillus spp. count was higher (P=0.028) in the pH 6 group of mushroom cap and tended to be higher (P=0.078) in the pH 6 group of mushroom stems compared with the pH 7 group. Submerged fermentation decreased (P<0.001) the ash content of the mushroom cap and stem in both pH values except the cap with pH 7 compared with the uninoculated mushroom. Similarly, the fermented mushroom cap and stem had lower (P<0.01) final pH values in both initial pH values. Lactobacillus spp. increased (P<0.001) the crude protein content of the mushroom cap with pH 6 but did not alter the crude protein content with pH 7. Besides, submerged fermentation decreased (P<0.001) the crude protein content of mushroom stem with both pH values. The results indicate that submerged fermentation using Lactobacillus spp. can be used to improve the nutritional composition of mushroom caps with pH 6.
显示更多 [+] 显示较少 [-]The Real Estate and Credit Bubble in Spain; Implications for Poland 全文
2019
Korzeb, Zbigniew
The aim of this article is to establish whether the symptoms of an emerging housing bubble can be observed on the Polish market. The concept of this study is based on a comparison between economic, financial and demographic conditions at the time of the mortgage crisis in Spain and the current situation on the housing market and on the market of housing loans granted to households in Poland. An analysis of two economic indicators, (i) housing loans to households-to-GDP expressed in growth rates and (ii) rates of house price growth, does not indicate that a speculative bubble occurs in Poland now. This, however, does not mean that the conclusions drawn from the Spanish crisis cannot and should not have a bearing on the Polish market, especially in terms of potential consequences the crisis may have for the banking sector.
显示更多 [+] 显示较少 [-]Göçmen Peyniri Üretiminde Reçete Standardizasyonu, Mikrobiyolojik Kalite ve Duyusal Özelliklerin Değerlendirilmesi 全文
2024
Derya Saygılı | Onur Özden
Bu çalışmanın amacı, İzmir ili merkez ilçelerinde üretilen Göçmen peyniri üretiminde standart reçetelerin tanımlanmasıdır. Bu amaçla ürünlerin mikrobiyolojik ve duyusal özellikleri değerlendirilerek tüketici profiline hitap eden ve endüstriyel üretime adapte edilecek en uygun standart reçetenin tanımlanması hedeflenmiştir. Araştırmada Balkan göçmeni bireylerden toplanan tarifler değerlendirilerek üretilen 4 farklı ürün için standart reçete çalışması yanı sıra duyusal analiz ve mikrobiyolojik analizler gerçekleştirilmiştir. Lor, Yoğurt, Lor-yoğurt ve Lor-süt şeklinde üretilen ürünlerde tat, koku, kıvam ve genel beğeni özellikleri hedonik skala (1-9) ile değerlendirilmiş ve genel beğeni puanı ortalaması sırası ile 7,63; 4,32; 6,63 ve 7,84 olarak tespit edilmiştir. Benzer şekilde Lor, Yoğurt, Lor-yoğurt ve Lor-süt ile üretilen geleneksel ürünlerde Lactobacillus spp.sayısı sırası ile 8,18; 6,11; 6,41 ve 7,34 kob/g; Laktokok sayısı sırası ile 7,44; 7,51; 7,35 ve 7,36 kob/g ve maya-küf sayısı sırası ile 4,41; 5,61; 4,71 ve 2,85 kob/g olarak tespit edilmiştir. Lor, Yoğurt, Lor-yoğurt ve Lor-süt ile üretilen geleneksel ürünlerde Staphylococcus aureus (S. aureus) sayısı sırası ile 2,06; ˂10; 3,78 ve 2,58 kob/g olarak tespit edilmiştir. Escherichia coli (E.coli) aranan tüm örneklerde ˂10 kob/g olarak bildirilmiştir. Geleneksel ürünler içerisinde fermente süt ürünü olarak önemli olan göçmen peyniri Balkan topraklarından Anadolu’ya taşınan bir kültürel mirastır. Toplumları yansıtan yemek kültürüne sahip çıkmak, gelecek nesillere aktarılmasını sağlamak, gastronomi turizmini canlandırmak amacı ile standart reçete çalışmalarının yerel lezzetler üzerine yoğunlaşması önem arz etmektedir.
显示更多 [+] 显示较少 [-]Farklı Demirli Gübre Uygulamalarının Kivi Yapraklarının Klorofil, Aktif Demir ve Besin Elementi İçeriklerine Etkileri 全文
2024
Ceyhan Tarakçıoğlu | Derya Türüdü
Bu çalışma, topraktan Fe-EDDHA, Fe-DTPA, Fe-HBED ve FeSO4 ile yapraktan Fe-DTPA, Fe-EDTA, FeSO4 ve Fe-Nano gübre uygulamalarının kivi bitkisinde demir (Fe) klorozunu önleme düzeylerinin belirlenmesi amacıyla yapılmıştır. Topraktan ağaç başına 5 g Fe uygulanırken, yapraktan Fe-Nano 10 mg L-1, diğer gübreler ise 75 mg Fe L-1 dozlarında uygulanmıştır. Farklı dönemlerde (çiçeklenme, meyve tutumu ve vejetasyon ortası) yaprak örnekleri alınarak bitkilerin toplam ve aktif Fe, toplam klorofil ve bazı besin elementi içeriklerine etkileri araştırılmıştır. Araştırma sonuçlarına göre, kivi yapraklarının toplam Fe içeriği çiçeklenme döneminden sonra azalmakla birlikte; aktif Fe ve klorofil içerikleri ile aktif Fe/toplam Fe oranının arttığı tespit edilmiştir. Yapraklar, Fe ve Mg hariç, tüm uygulamalarda genellikle yeterli düzeylerde besin elementi içeriklerine sahip olmuşlardır. Diğer taraftan, sırasıyla yapraktan Fe-EDTA, FeSO4 ve Fe-DTPA uygulamaları ile topraktan FeSO4, Fe-HBED ve Fe-EDDHA uygulamalarının kivide Fe klorozunu önlemede daha etkili oldukları belirlenmiştir.
显示更多 [+] 显示较少 [-]Türkiye Oryantal Tütün Germplazmının UPOV Test Kılavuzu Kullanılarak Karakterizasyonu 全文
2024
Ahmet Kınay | Dursun Kurt | İbrahim Saygılı | Turgay Kurt
Türkiye’de tütün üretiminde oldukça yüksek genetik çeşitlilik içeren popülasyonlar, yerel çeşitler ve ekotipler kullanılmaktadır. Araştırma, Türkiye’de oryantal tütün üretilen alanlarda kullanılan tütün genotipleri içerisindeki genetik çeşitliliğin tespit edilmesi amacıyla yürütülmüştür. Tütün üretim alanlarında morfolojik farklılıkları nedeniyle seçilen 340 tütün genotipi yabancı tozlanmasını engellemek amacıyla izole edilmiş ve böylece kendilenmiştir. Genetik olarak farklı olan 259 genotip tarla denemelerine alınmıştır. İzmir tipi, Basma tipi ve Samsun tipi olmak üzere üç grupta ele alınan bölge tütünlerinin morfolojik ve fenolojik özellikleri UPOV rehberine göre değerlendirilmiştir. Yaygın özellikler bakımından ana sap uzunluğu ortaca-uzun, yaprak sayısı orta-fazla, bitki şekli eliptik, ana gövde rengi açık yeşil, sürgün oluşturma kabiliyeti yok veya çok zayıf, yaprak tipi yapışıktır. Aya uzunluğu ve genişliği orta, yaşmak eni dar-orta, aya şekli geniş eliptik ve yaprak ucu şekli çok az-orta sivriliktedir. Aya kabarcıklığı ve ondülelik zayıfça-zayıftır. Çiçeklenme geç-çok, geçci, taç yaprak rengi açık pembe, orta sıklıkta küresel çiçek kümesi şekli yaygındır. İncelenen tütün genotiplerinde karakterler bakımından varyasyonların yüksek olduğu belirlenmiştir. İzmir tipi tütünlerin bitki boyu ile yaprak büyüklüğünün diğer tiplere göre daha küçük olduğu belirlenmiştir. İzmir tipi tütünler aynı zamanda yaprak sayısı çok, olgunlaşma süresi geççi, yapraklarının düz ve yaprak uç açılarının ise yuvarlak olduğu belirlenmiştir. Farklı özellikleri ile öne çıkan hatlarla, gelecekte planlanan ıslah çalışmaları için önemli bir veri tabanı oluşturulmuştur.
显示更多 [+] 显示较少 [-]Bioactive Compounds and Industrial Peeling Applications of Inner and Outer Shells of Chestnuts (Castanea spp.) 全文
2024
Burcu Aydoğan Coşkun
The aim of this review is to provide information concerning the types of chestnut shells (inner and outer), their compositions and bioactive compounds, as well as to mention industrial peeling applications. These shells are comprised of high-valued natural active compounds, such as polyphenols (phenolic acids, flavonoids, tannins, hydroxycoumarins -scopoletin, scoparone-), pigments (melanin) and minor compounds (minerals, dietary fiber, vitamin C and E, essential amino acids and fatty acids). The total phenolic acids and flavonoid content of C. sativa shell were ranged between 119.17-223.62 mg/kg db and 330 – 503 mg CE/g. It is also a good source of vitamin C with reported levels of 15.57 and 28.97 mg AA/100 mg db in water and ethanol extracts, respectively. The shells are used as food additives due to their colorant, antioxidant and antimicrobial properties. The shells are exposed by the peeling process applied to obtain the fruit without the shell which is mainly used. The most frequently used technique in chestnut peeling is the Brulage peeling method. However, in this technique, used peeling mechanism is insufficient to obtain both inner and outer shells separately at the same time. Moreover, further research is needed to obtain the shells individually, to analyse each shell in detail, and to increase the industrial use of shells.
显示更多 [+] 显示较少 [-]Investigation of the Antioxidant Potential of Kombucha Prepared Using Salvia officinalis L. 全文
2024
Cihan Düşgün
Kombucha is a slightly acidic sugary drink made by fermenting sweetened tea. It is known for its numerous health advantages. The objective of this study is to explore the possible effects of Salvia officinalis on enhancing the biochemical characteristics of kombucha. The present investigation compared traditional kombucha, produced using green and black tea, with kombucha derived from S. officinalis, examining their antioxidant properties, total phenolic, and total flavonoid content. The fermentation process lasted for a duration of 14 days. The present study was performed to evaluate the antioxidant activity of fermented S. officinalis. The antioxidant potential was assessed using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity and copper (II) reducing antioxidant capacity (CUPRAC) techniques. The DPPH radical reduction percentages were determined to be 93.5±1.65% for kombucha of green tea, 90.6±1.51% for kombucha of black tea, and 88.5±1.68% for kombucha of S. officinalis. According to the CUPRAC results, green tea kombucha was found to have 321.58±2.12 mg TE/g, black tea kombucha 305.91±1.98 mg TE/g and S. officinalis kombucha 301.97±1.78 mg TE/g. Total phenolic content was 154.15±1.22 mg GAE/g for kombucha of green tea, 145.41±1.31 mg GAE/g for kombucha of black tea, and 124.52±1.25 mg GAE/g for kombucha of S. officinalis. The determined value for the total flavonoid content was 101.12±0.98 mg QE/g for kombucha of green tea, 99.41±0.97 mg QE/g for kombucha of black tea, and 92.73±0.78 mg QE/g for kombucha of S. officinalis. The findings indicate that S. officinalis can serve as a substitute medium for kombucha fermentation, resulting in the development of a novel kind of kombucha with similar chemical characteristics.
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