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Öğe Bioactive and antioxidant characteristics of blackberry cultivars from East Anatolia(Tubitak Scientific & Technological Research Council Turkey, 2016) Gundogdu, Muttalip; Kan, Tuncay; Canan, IhsanBlackberry is commonly used both in the fresh and the processing market. In the present study antioxidant capacity, organic acids, phenolic compounds, vitamin C, and sugars content of blackberry cultivars grown in the east of Turkey were determined. Phenolic compounds, organic acids, vitamin C, and sugars were determined by HPLC. Antioxidant capacity was determined by spectrophotometric methods. The cultivar Cherokee had the highest antioxidant capacity (48.900 mu mol TE g(-1)), and the cultivar Jumbo had the lowest antioxidant capacity (30.855 mu mol TE g(-1)). It was determined that the chief phenolic compounds in blackberry cultivars were catechin (ranging from 111.599 to 438.970 mg 100 g(-1)), followed by ellagic acid (ranging from 10.610 to 51.506 mg 100 g(-1)). Looking at the content of organic acids, citric acid and malic acid came to the fore, ranging from 3.182 to 7.131 g kg(-1) and 1.349 to 2.881 g kg(-1), respectively. Fructose content of the studied cultivars was higher than the glucose and sucrose contents. Results indicate that blackberry cultivars with higher antioxidant capacity and biochemical content may be valuable for nutritional breeding efforts.Öğe Çatak ve Tatvan Yörelerinde Yetiştirilen Yerel Elma Çeşitlerinin Pomolojik Özellikleri(2011) Özrenk, Koray; Gündoğdu, Müttalip; Kaya, Tuncay; Kan, TuncayBu çalışmada Çatak (Van) ve Tatvan (Bitlis) bölgelerinde yetiştirilen yerel elma çeşitlerinin pomolojik özellikleri incelenmiştir. Çatak yöresinde Sevi Birhoi, Sevi Heko, Çitanyan Balalı, Bahar Turş, Mayhoş Yazlık Elma, Seva Spi, Seva Sor; Tatvan yöresinde Seva Şirin, Seva Çali, Seva Altemit, Seva Tahğla, Seva Payizi, Ekşi Pamuk Elma, Tatlı Pamuk Elma ve Acı Elma çeşitlerinin meyve özellikleri belirlenmiştir. İncelenen yerel elma çeşitlerin meyve ağırlıkları 139.3-20.9 g, meyve eti sertlikleri 6.2-3.9 kg/cm3, titre edilebilir asitlik miktarları % 4.0-2.2, suda çözünür kuru madde miktarları % 15.4-10.0 ve pH oranlarının % 4.6-3.4 değerleri arasında olduğu tespit edilmiştir.Öğe Diversity on color and phenolic compounds in apricot fruits(Springer, 2017) Gundogdu, Muttalip; Ercisli, Sezai; Berk, Selma; Kan, Tuncay; Canan, Ihsan; Gecer, Mustafa KenanTurkey dominate world apricot production for a long time sharing 23% of world fresh apricot production and the country also realizes 82% of the total dried apricot trade of the world. In this study, phenolic compounds and fruit skin color in eight apricot cultivars grown in Malatya province of Turkey and correlations between phenolic compounds and fruit skin color were determined. Among apricot cultivars, 'Wilson Delicious' was the most orange-colored fruit skin color. Pyrogallol and rutin were found to be predominant phenolic compounds for all cultivars. Pearson correlation coefficients between pyrogallol, catechol, chlorogenic acid, caffeic acid, epigallocatechin and b color values were found statistically significant (P < 0.01). 'Harcot' cultivar came into prominence because of high pyrogallol (1596.26 mu g g(-1)), catechol (119.89 mu g g(-1)), chlorogenic acid (281.44 mu g g(-1)), caffeic acid (167.86 mu g g(-1)) and epigallocatechin (132.46 mu g g(-1)) levels. Overall 'Ordubat' cultivar had the lowest phenolic compounds. Among the yellow-colored cultivars, 'Harcot' and 'Wilson Delicious' had the richest phenolic compounds among yellow and orange-colored cultivars, respectively.Öğe EFFECT OF SULFURIZATION AND PROCESS CONDITIONS ON POLYPHENOL CONTENT OF ANATOLIAN APRICOTS (PRUNUS ARMENIACA)(Wiley, 2013) Kan, Tuncay; Bostan, Saim ZekiThe aim of this study is to evaluate the content of phenolics such as quercetin, chlorogenic acid, caffeic acid, p-coumaric acid, ferrulic acid, as well as other catechin, epicatechin and quercetin-3-rutinoside (rutin). Phenolic compounds were measured by spectrophotometric methods. Among the researched apricots, Organically grown cultivar contained the highest amounts of all groups of phenolics, followed by conventional apricots. The quantity of polyphenols depended on sulfurization was investigated. It is found that the region of cultivation did not have remarkable influence on polyphenol, whereas the cultivation type has the main effect. Significant differences were observed in phenolic mass fraction among different cultivars and growing seasons (P<0.05), and phenolic compounds were significantly higher in all organics. Examined cultivars possess high antioxidant capacity and reducing power, and all phenolics were highly correlated with RP (R=0.46 to 0.99). Generally, organically grown fruits are rich sources of phenolics, which show evident antioxidant capacity. The high-pressure liquid chromatography, equipped with diode array detector, was used to investigate the polyphenols. We state that the level of all determined phenolics decreased after sulfurization. PRACTICAL APPLICATIONS Consumption of apricots have been applied to be a practical approach toward the prevention of several degenerative diseases. It is well reported that apricots with different cultivars contain phenolics that have been shown to be the main phytochemicals present in fruit and that they play important roles in the preservation of several degenerative diseases. Sulfurized apricots have much better hygienic quality, and due to chemical reactions during processing, they become more digestible and have a decreased nutritional value. However, sulfurization may affect the antioxidant status of apricots due to the release of more phenolic compounds and destruction or creation of redox-active metabolites.Öğe 'Eylul': A New Late Ripening Apricot Cultivar for Fresh Market(Amer Soc Horticultural Science, 2018) Asma, Bayram Murat; Murathan, Zehra Tugba; Kan, Tuncay; Karaat, Firat Ege; Birhanli, Ogun; Erdogan, Abdullah[Abstract Not Available]Öğe Fire blight (Erwinia amylovora) resistant/susceptibility of native apple germplasm from eastern Turkey(Elsevier Sci Ltd, 2011) Ozrenk, Koray; Balta, Fikri; Guleryuz, Muharrem; Kan, TuncayThis study aimed to determine the resistance/susceptibility to fire blight of apple germplasm resources from the province of Erzincan in eastern Turkey. In total, 32 native apple accessions from four regions within the province were tested under greenhouse conditions by inoculating the shoot tips with pathogenic bacterium. Shoot tips were wounded for inoculation. Genotypical susceptibility index (GSI%) values were computed for each genotype based on the length of the lesion that developed on each shoot. Accessions were grouped into five classes of resistance/susceptibility, as follows: Class A (resistant); Class B (moderately resistant); Class C (moderately susceptible); Class D (susceptible); and Class E (highly susceptible). GSI% values differed significantly among accessions (p < 0.01). Five accessions received a rating of Class A, and 7 accessions received a rating of Class B. This was followed by 9 accessions with a rating of Class C, 5 accessions with a rating of Class D and 6 accessions with a rating of Class E. The findings of this study are expected to contribute to breeding efforts with respect to apple resistance to fire blight. (C) 2011 Elsevier Ltd. All rights reserved.Öğe Geç olgunlaşan sofralık kayısıların melezleme yoluyla ıslahı (I.Dilim)(2006) Birhanlı, Ogün; Kan, Tuncay; Asma, Bayram Murat; Erdoğan, Abdullah[Abstract Not Available]Öğe Geç oluşan sofralık kayısıların melezleme yoluyla ıslahı (I.dilim)(2006) Birhanlı, Ogün; Asma, Bayram Murat; Erdoğan, Abdullah; Kan, Tuncay[Abstract Not Available]Öğe Malatya'da yetiştirilen kayısıların (Prunus armeniaca L.) bazı fenolik madde içeriklerinin incelenmesi(Bahçe, 2010) Kan, Tuncay; Bostan, Saim ZekiÖz: Bu çalışma 2007-2008 yıllarında iki yıl süre ile yürütülmüştür. Malatya’da yoğun olarak yetiştirilen Hacıhaliloğlu, Kabaaşı ve Hasanbey kayısı çeşitleri ile bir Zerdali tipinin taze meyve örneklerindeki polifenol içerikleri UV- DAD, dedektörü ile yüksek basınçlı sıvı kromotoğrafisi (HPLC) cihazı kullanılarak belirlenmiştir. Elde edilen so-nuçlar neticesinde her bir kayısı örneğindeki polifenol miktarları istatisitiki olarak birbirinden farklılık göstermiştir (p<0.05). Tüm kayısı numuneleri içerisinde, en yük-sek düzeyde olan polifenolün 2007 yılında ve kuercetin-3-rutinoside (rutin) olduğu ve bunun da 95.3 ?g/kuru madde değeriyle Hacıhaliloğlu ve Kabaaşı çeşitlerinde belir-lendiği görülmüştür. En az miktardaki polifenol olan p-kumarik asidin yine 2007 yı-lında ve 0.21 ?g/kuru madde değeriyle Hasanbey çeşidinde olduğu belirlenmiştir.Öğe Malatya’da Meyve Fidanı Yetiştiriciliğinin Durumu, Sorunları ve Çözüm Önerileri(Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018) Karlıdağ, Hüseyin; Atay, Salih; Karaat, Fırat Ege; Kan, Tuncay; Yıldırım, HakanÖz: Malatya’da 2015 yılında yürütülen bu çalışmada, ilde fidan üretimi yapmakta olan 16 farklı üretici ile yüzyüze görüşülerek ve bu üreticilere ait fidan üretim alanları incelenerek elde edilen veriler çerçevesinde, Malatya ili fidancılık durumunun belirlenmesi amaçlanmıştır. Elde edilen verilere göre, ildeki fidan üretim işletmelerinin küçük ölçekli ve yaklaşık %90’ının 50 da ve daha küçük üretim alanına sahip oldukları belirlenmiştir. Üretim durumları incelendiğinde; üretimin 1/3’ünü kayısı fidanı oluştururken, bunu elma, kiraz, armut ve badem fidanı izlemektedir. Üretilen fidanların %66.81’i Malatya’da, geri kalanı çevre illerde pazarlanmaktadır. Sertifikalı meyve fidanı fiyatı ortalama olarak 4.87 TL olarak bulunurken, en yüksek fiyat 6.5 TL ile kiraz fidanında tespit edilmiştir. Fidan üreticileri, üretimle ilgili süreçte önemli bir sorun olmadığını belirtirken, üretici birliklerinin olmayışı, sertifikasız ve kontrolsüz fidancıların varlığı ve maliyet ile fiyat arasında bir denge oluşturulamaması problem olarak vurgulanmıştır. Başlık (İngilizce): Situation, Problems and Suggestions for Fruit Sapling Growing in Malatya Öz (İngilizce): In the present study which was conducted in Malatya in 2015, the situation of seedling production was aimed to be determined by interviewing with the growers and visiting the nurseries. As a result of the study, nurseries were found to be small scaled and approximately 90% of them have 50 da or smaller production areas. When the production of the nurseries were analyzed, apricot seedlings was found to constituted 1/3 of the total seedling production and it was followed by apple, cherry, pear and almond seedling production. 66.81% of the seedlings are sold in Malatya and the rest are marketed to nearby cities. The average price for certified fruit seedling was found as 4.87 TL and the highest price was determined in cherry seedlings with the price of 6.5 TL. While seedling growers haven’t observed any important issues in seedling production, the lack of grower associations, the facts of pirate seedling growers and balance between costs and prices could not have been constituted are emphasized as the main problems.Öğe Melez kayısı genotiplerinin fenolojik, pomolojik ve geç olgunlaşma özelliklerinin saptanması üzerine araştırmalar (II.Dilim)(2010) Birhanlı, Ogün; Kan, Tuncay; Erdoğan, Abdullah; Asma, Bayram Murat; Abacı, Zehra Tuğba[Abstract Not Available]Öğe Odunsu Bitki Türlerinde İn-vitro Aşılama-I (Anaç, Kalem, Aşı Tekniği)(Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2017) Yıldırım, Hakan; Çalar, Nazan; Onay, Ahmet; Karlıdağ, Hüseyin; Kan, TuncayÖz: İn-vitro aşılama, aksenik kültür koşullarında minyatür aşı kalemlerinin aşılanmasını kapsayan ve diğer tekniklere nazaran en son vejetatif çoğaltım tekniklerinden biridir. Bu yöntem, sürgün ucu kültürü ve aşılamanın bazı sınırlayıcı özelliklerinin üstesinden gelmekle birlikte, her iki metodun avantajlarını da bir arada bulundurmaktadır. İlk uygulandığı zamanlarda bazı meyve tür ve çeşitlerindeki virüs ve benzeri endojen patojenlerin eradikasyonu için geliştirilen in-vitro aşılama, bitki gelişim ve fizyolojisinin farklı alanlarında çeşitli odunsu bitki türlerinde hızla gelişmiştir. Bunlar birçok odunsu türlerin olgun genotiplerinin klonal çoğaltımında bir ön koşul olarak fizyolojik rejuvenasyonu ve aşıda uyuşmazlığı da kapsamaktadır. Sonuç olarak in-vitro aşılama, yoğun olarak kullanılan ve diğer vejatatif çoğaltım metodlarında bulunan olumsuzlukların üstesinden gelebilmek için daha çok düşünülmeyi ve kullanılmayı hak eden orijinal ve tecrübe gerektiren bir tekniktir. Doku ve hücreler arasındaki genetik benzerlik ve farklılıkların ayrıntılı incelenmesine imkan sağlamaktadır. Bu çalışmanın amacı, 1970'li yıllarda turunçgillerde virüsten ari bitki üretimi amacıyla başlayan in-vitro aşılama çalışmalarının günümüze kadar nasıl bir süreçten geçtiği ve özellikle meyve türlerinin de dahil olduğu odunsu bitki türlerinde bitki ıslahı ve çoğaltımı amacıyla ne tür çalışmaların yapıldığının ortaya çıkarılması ve belli bir düzende sunulmasıdır Başlık (İngilizce): In vitro Micrografting of Woody Plant Species-I (Rootstock, Scion, Grafting Technique) Öz (İngilizce): In vitro micrografting is a propagation technique, involving the grafting of relatively miniature cuttings under axenic culture conditions and it is one of the recent developed propagation techniques compared to other conventional vegetative propagation techniques. This method overcomes some of the limitations of shoot tip culture and grafting, while it also keeps together the advantages of both methods. Micrografting was applied for the eradication viruses and pathogens from some fruit species and cultivars during the first application period, but later, the technique was further developed on various woody plant species in different research areas of plant physiology and development. These includes physiological rejuvenation and incompatibility grafting as a prerequisite for the clonally propagation of mature genotypes of many woody species. Consequently, in vitro micrografting is used in large scale propagation and an original technique which needs experience by overcoming the disadvantages of other propagation technique. It also enables to examine in detail the genetic similarities and differences between the tissues and cells. The aims of this study were (1) to review how micrografting studies passed a process from 1970s until today, first started to obtain virus-free plants from citrus; (2) to reveal what kind of work has been presented particularly on the plant breeding and propagation of the woody plant species, including the type of fruit breeding and reproduction and (3) and to present those studies in a specific orderÖğe Organic acids, sugars, vitamin C content and some pomological characteristics of eleven hawthorn species (Crataegus spp.) from Turkey(Soc Biolgia Chile, 2014) Gundogdu, Muttalip; Ozrenk, Koray; Ercisli, Sezai; Kan, Tuncay; Kodad, Ossama; Hegedus, AttilaBackground: The Hawthorn (Crateagus sp.) mostly occurs around the temperate region of the world with a high number of species, producing a fruit with numerous beneficial effects for human health. The aim of the study was to determine organic acid and sugar contents in the fruit of a number of hawthorn species grown in Erzincan province of Turkey. Results: Citric acid was the predominant organic acid in all hawthorn species and C. pseudoheterophylla had the highest citric acid content (23.688 g/100 g). There were not statistically significant differences among hawthorn species (except C. atrosanguinea Pojark) in terms of fumaric acid content. C. pontica C. Koch had a higher content of vitamin C (9.418 mg/100 g) compared to other species. Fructose was the predominant sugar component in all species and C. monogyna subsp. monogyna Joiq had the highest fructose content (18.378 g/100 g). Conclusions: The high fruit quality of the studied species indicates the importance of this fruit in human nutrition as a natural source. The study revealed that there were differences in terms of fruit characteristics among hawthorn species and thus better quality hawthorn genotypes can be selected within the species. Hence, this study is considered to be a valuable reference for forthcoming studies. The high fruit quality of the studied species indicates the importance of this fruit in human nutrition as a natural source.Öğe Phenolic compounds and vitamins in wild and cultivated apricot (Prunus armeniaca L.) fruits grown in irrigated and dry farming conditions(Soc Biolgia Chile, 2014) Kan, Tuncay; Gundogdu, Muttalip; Ercisli, Sezai; Muradoglu, Ferhad; Celik, Ferit; Gecer, Mustafa Kenan; Kodad, OssamaBackground: Turkey is the main apricot producer in the world and apricots have been produced under both dry and irrigated conditions in the country. In this study, phenolic compounds and vitamins in fruits of one wild (Zerdali) and three main apricot cultivars ('Cataloglu', 'Hacihaliloglu' and 'Kabaasi') grown in both dry and irrigated conditions in Malatya provinces in Turkey were investigated. Results: The findings indicated that higher content of phenolic compounds and vitamins was found in apricot fruits grown in irrigated conditions. Among the cultivars, 'Cataloglu' had the highest rutin contents both in irrigated and dry farming conditions as 2855 mu g in irrigated and 6952 mu g per 100 g dried weight base in dry conditions and the highest chlorogenic acid content in irrigated and dry farming conditions were measured in fruits of 'Hacihaliloglu' cultivar as 7542 mu g and 15251 mu g per 100 g dried weight base. Vitamin C contents in homogenates of fruit flesh and skin was found to be higher than beta-caroten, retinol, vitamin E and lycopen contents in apricot fruits both in irrigated and dry farming conditions. Conclusion: The results suggested that apricot fruits grown in both dry and irrigated conditions had high health benefits phytochemicals and phytochemical content varied among cultivars and irrigation conditions as well. However, more detailed biological and pharmacological studies are needed for the demonstration and clarification of health benefits of apricot fruits.Öğe Phenolic compounds, bioactive content and antioxidant capacity of the fruits of mulberry (Morus spp.) germplasm in Turkey(Polish Soc Horticultural Sci, 2017) Gundogdu, Muttalip; Canan, Ihsan; Gecer, Mustafa K.; Kan, Tuncay; Ercisli, SezaiThe study was carried out in 2014 and 2015, and aimed to determine some important biochemical and antioxidant characteristics of the fruits of mulberry (Morus spp.) cultivars and genotypes found in Malatya (Turkey). Phenolic compounds (protocatechuic acid, vanillic acid, ellagic acid, rutin, quercetin, gallic acid, catechin, chlorogenic acid, caffeic acid, syringic acid, p-coumaric acid, o-coumaric acid, phloridzin and ferulic acid), organic acids, sugars, vitamin C and antioxidant capacity were analyzed in sampled fruits. The results showed that most of the biochemical content and antioxidant capacities of the cultivars and genotypes were significantly different from one another (p < 0.05). Among the phenolic compounds, rutin (118.23 mg 100 g(-1)), gallic acid (36.85 mg 100 g(-1)), and chlorogenic acid (92.07 mg 100 g(-1)) were determined to have the highest values for most of the fruit samples. Malic acid and citric acid were dominant among the organic acids for all the cultivars and genotypes except 44-Nrk-05. Glucose was measured as a more abundant sugar than fructose and sucrose in all samples. Antioxidant capacity, on the other hand, varied between 6.17 and 21.13 mu mol TE g(-1) among the cultivars and genotypes analyzed.Öğe Some Biochemical Characteristics of Fruit Samples of Sambucus nigra Genotypes from Northeastern Turkey(Univ Agr Sci & Veterinary Med Cluj-Napoca, 2019) Kan, TuncayThere are numerous wild edible fruit species in the world and they are important components of dietary utilization, local pharmacopoeia, cultural and religious practices of indigenous people. In this study, some important berry characteristics of seven seed propagated black elderberry (Sambucus nigra) genotypes sampled from Rize province, Turkey, were assessed. The genotypes exhibited a great diversity on most of the biochemical characteristics. Berries of genotypes showed moderate Vitamin C content ranged from 26 to 38 mg per 100 g fresh weight. Total phenolic and total anthocyanin content in fruits of the S. nigra genotypes has also high value ranged from 360 to 447 mg gallic acid equivalent (GAE) per 100 g fresh weight and 307 to 412 mg cyanidin-3-glucoside equivalent per 100 g fresh berry, respectively. Antioxidant activity was found between 5.28 and 7.11 mmol trolox equivalent per 100 g fresh weight basis. Citric acid and fructose determined as major organic acid and sugar for all genotypes. For its high vitamin C, total anthocyanin and total phenolic content and high antioxidant activity of fruits of wild grown S. nigra may have provide many health benefits and can be domesticated to establish orchards in Turkey.Öğe Van Gölü havzası yerel armutları(2010) Özrenk, Koray; Gündoğdu, Muttalip; Kan, TuncayÖz: Van Gölü havzasında yetiştirilen mahalli armut çeşitlerinin belirlenmesi amacıyla bu çalışma yapılmıştır. Bölgede uzun zamandan beri yetiştiriciliği yapılan bu yerel çeşitler yöre iklimine iyi adapte olmuş ve yetiştirildiği bölgede önemli bir Pazar payına sahip olan çeşitlerdir. Yetiştiriciliği yapılan mahalli çeşitlerin meyve özellikleri üzerinde yapılan bu araştırmada çeşitlere ait meyvelerin ağırlıkları, boyutları, suda çözünür kuru madde miktarları (SÇKM), titre edilebilir asit içerikleri gibi bazı pomolojik özellikleri belirlenmiştir. İncelenen çeşitlerde meyve ağırlığı 199.-20,07 g, meyve eti sertliği 13 - 3.07 lb, meyve sap uzunluğu 55.24 - 11.77 mm, titre edilebilir asit içeriği % 20.4 – 1.8, suda çözünür kuru madde miktarı % 17.80-10.5 arasında bulunmuştur.Öğe Vitamins, Flavonoids, and Phenolic Acid Levels in Early- and Late-ripening Apricot (Prunus armeniaca L.) Cultivars from Turkey(Amer Soc Horticultural Science, 2013) Gundogdu, Muttalip; Kan, Tuncay; Gecer, Mustafa KenanThis study aimed at determination of vitamin (A, E, C, beta-carotene, and lycopene), phenolic, and flavonoid contents in apricots at different stages of ripening using high-performance liquid chromatography (HPLC). The effect of ripening in terms of phytochemical contents was investigated. Early period apricots showed 2.5 to three times higher level of vitamins (A, E, C, and beta-carotene, and lycopene) in all types of apricots than others (P < 0.05). Early-ripened cultivar, Boccuia, showed the highest level of vitamins, although a higher level of vitamin C was measured in late-ripened cultivar Levent (P < 0.05). No lycopenes were determined in late-period apricots in contrary to early- and middle-period apricots. Levels of phenolics and flavonoids were measured in all types (3-B-Q-D, procyanidin B1, B2, B3, caffeic acid, gallic acid, p-coumaric acid, epigallocatechine, catechine, epictechine, chlorogenic acid, ferrulic acid, and routine) and statistical deviation of all types was noted (P < 0.05). Among all, the cultivar Ozal showed the highest level of chlorogenic acid (45,843.00 mu g.g(-1) dry matter) in all ripening periods, where middle-ripened cultivar Adilcevaz showed the lowest level of p-coumaric acid (7.93 mu g.g(-1) dry matter content base).Öğe Yöresel olarak yetiştirilen kayısı çeşitlerine ait meyvelerdeki yapısal değişmelerin incelenmesi(İnönü Üniversitesi, 2005) Kan, TuncayÖZET Yüksek Lisans Tezi YÖRESEL OLARAK YETISTIRILEN KAYISI ÇESITLERINE AIT MEYVELERDEKI YAPISAL DEGISMELERIN INCELENMESI Tuncay KAN Inönü Üniversitesi Fen Bilimleri Enstitüsü Biyoloji Anabilim Dali 79 + viii sayfa 2005 Danisman: Yrd. Doç. Dr. Bayram Murat ASMA Bu çalismada kayisida küçük meyve döneminden olgunlasincaya kadar geçen sürede renk, suda çözünebilir kuru madde miktari (SÇKM) ve nem düzeylerinde meydana gelen degismeler incelendi. Kayisi kalitesine çesitli parametrelerin etkisi arastirildi. Ayrica yas kayisilarin kurutulmasi sirasinda meydana gelen kararmaya sebep olan parametreler tespit edildi. Kükürtleme ve sonrasindaki kayisinin bilesiminde meydana gelen degismeler tespit edildi. Ayrica bu çalisma kapsaminda Malatya'da yetistirilen kayisi çesitlerine ait vitamin degerleri büyüme dönemlerine bagli olarak saptandi. Yas meyvenin gelismesi sirasinda renk, asitlik, boyut, nem ve seker düzeyleri belirlenmis ve kayisi çesitlerine bagli olarak yorumlanmistir. Bu parametrelerin kurutma esnasindaki degisimleri Malatya'da en çok uygulanan kurutma yöntemlerine göre belirlenmistir. Güneste kurutma ve kükürtleme etkileri incelenirken, kükürt miktarinin meyve üzerine etkileri yorumlandi. Yüksek basinçli sivi kromotografisi HPLC, Termal analiz teknikleri Diferansiyel Teramali kalorimetre (DSC), Diferansiyel Termal Analiz (DTA), Termogravimetri (TGA) cihazlari, vitamin ve olgunlasma düzeylerinde meydana gelen degisimleri incelemek için kullanilmistir. ANAHTAR KELIMELER: Kayisi, kükürtleme, vitamin, HPLC, DSC, pomolojik özellikler, fenolojik özellikler.
