Browsing by Author "Akbudak, Bülent"

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1-MCP, low O2 and high CO2 reduce disorders and extend vase life of "Rosalin" gerberas during storage
(Taylor and Francis, 2013-03) Akbudak, Bülent; Murat, Şenay; Uludağ Üniversitesi/Ziraat Fakültesi/Tarla Bitkileri Bölümü.; 56253171700; 55484924000
The hormone ethylene performs an important function in the processes related to the senescence of cut flowers, and, in particular, anti-ethylene treatments are recommended to extend the vase life of orchids. Among the treatments currently used for such postharvest treatment, 1-methylcyclopropene (1-MCP) is an efficient inhibitor of the autocatalytic production of ethylene. Although postharvest 1-MCP treatment is used to counter ethylene activity and delay senescence in fresh produce, its potential application in cut flowers has not been adequately tested. The objective of this study was to investigate the effect of 1-MCP treatment with modified atmosphere packaging on the shelf life of cut Rosalin gerberas. To this end, gerberas harvested at commercial maturity were divided into two groups: 1-MCP treatment (625 ppb at 4 +/- 1 degrees C for 4 hours) and no treatment. Both groups of flowers were stored under normal and modified atmosphere conditions at 4 +/- 1 degrees C and 80 +/- 5% relative humidity. The flowers were covered with materials of different characteristics for the modified atmosphere. To determine the differences between the treatments, quality parameters were examined in the flowers at 7-day intervals during the storage. The 1-MCP treatment with both the normal and modified atmosphere significantly reduced the overall postharvest loss in quality. The best results for the quality characteristics determined were obtained from the 1-MCP and 30 mu m polyvinylchloride combined treatment. These results indicate that 1-MCP and a modified atmosphere treatment are good methods for extending the vase life, maintaining the visual quality, and reducing the loss of quality of gerberas.
Bazı badem çeşitlerinde değişik aşı uygulamaları üzerine bir araştırma
(Uludağ Üniversitesi, 1994-09) Akbudak, Bülent; Eriş, Atilla; Uludağ Üniversitesi/Fen Bilimleri Enstitüsü/Bahçe Bitkileri Anabilim Dalı.
Bu çalışmada "Texas" çeşidinin çöğürleri üzerine "Tuono", "Texas", "Drake", "104/1" ve "Non Pareil" çeşitleri "T-Odunlu", "T-Göz", "Omega" ve "Dilcikli İngiliz" aşısı uygulamaları iTe aşılanmıştır. "T-Odunlu" ve "T-Göz" aşıları Temnmz ayında dış şartlarda; "Omega" ve "Dilcikli İngiliz" aşıları ise Mart ayında kontrollü şartlarda yapılmıştır. Araştırma sonucunda aşı tutma, aşı sürme, fidan çap ve sürgün uzunlukları tespit edilmiştir. "T- Odxmlu" ve "T-Göz" aşılarında aşı tutma ve sürme oranları; "Omega" ve "Dilcikli İngiliz" aşılarına göre daha fazla olmuştur. "T-Odunlu" göz aşısında "Tuono" çeşidi %90 ile en yüksek aşı tutma oranını gösterirken;" "Drake" çeşidi %100 değeriyle en yüksek sürme oranını vermiştir. "T-Göz" aşısında ise, yine t "Tuono" ve "Texas" çeşitleri %100'lük bir değerle en yüksek aşı tutma oranını ve "Non Pareil" çeşidi ise, %100 oranıyla en yüksek sürme oranını sağlamıştır. "Omega" aşısı ile yapılan aşılarda, "Drake" çeşidi %76.6 ile en yüksek aşı tutma ve,%56.6 oranıyla en yüksek sürme oranlarını vermiştir. "Dilcikli İngiliz" aşısında ise, "Tuono" çeşidi %86.6'lık bir değerle en yüksek aşı tutma ve "104/1" çeşidi de %7 3.3 oranıyla en yüksek sürme oranını göstermiştir.. Fidan çap ve sürgün uzunlukları açısından, en yüksek fidan çapı "T-Göz" aşı yönteminde "Texas" çeşidinden (2.76) cm elde edilirken, sürgün uzunluğu açısından en yüksek değeri yine "T-Göz" aşı yönteminde "Non Pareil" çeşidinden (112.03 cm) sağlanmıştır.
Bursa ili zeytin bahçelerinde euphyllura phillyreae Foerster (Homoptera: Aphalaridae)’nin popülasyon dalgalanması
(Uludağ Üniversitesi, 2005) Kovancı, Bahattin; Kumral, Nabi Alper; Akbudak, Bülent; Uludağ Üniversitesi/Ziraat Fakültesi/Bitki Koruma Bölümü.; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.
Bu çalışma, Bursa ilinde zeytinlerde zarar yapan Euphyllura phillyreae Foerster’nin yayılışını belirlemek ve popülasyon dalgalanmasını incelemek amacıyla 2000-2002 yıllarında yapılmıştır. E. phillyreae’nın Nilüfer ilçesinde Çatalağı, Gölyazı ve Görükle hariç Bursa’nın diğer tüm bahçelerinde az veya çok bulunduğu belirlenmiştir. Populasyon dalgalanmalarının izlendiği Kumyaka ve Gündoğdu’daki bahçelerde E. phillyreae’nın kışlayan erginlerinin bıraktığı ilk yumurtalar 2000 yılında nisan ayı sonu, 2001 ve 2002 yıllarında ise nisan ayı başında saptanmıştır. Yumurta ve nimf popülasyonu yer ve yıllara göre nisan ve mayıs aylarında birer tepe noktası meydana getirmiştir. Yeni dölün erginleri mayıs ayı sonu ile haziran ayı ortaları arasında görülmeye başlamışlardır. Bu erginler, yaz, sonbahar ve kış aylarını zeytin bahçelerinde geçirdikten sonra ertesi yıl ilkbaharda yumurta bırakmışlardır. Böylece E. phillyreae Bursa ilinde yılda bir döl vermiştir.
Comparison of quality characteristics of fresh and processing tomato
(WFL Publisher, 2012-04) Akbudak, Bülent; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.; 56253171700
In this research, seven tomato (Lycopersicon esculentum Mill.) varieties were used to study the quality characteristics or different tomato products. 'CXD510' (fresh and canned) and 'CXD276' (paste) were found to be superior with respect to ascorbic acid and antioxidant capacity. The highest lycopene and beta-carotene contents were determined in 'Bos3155', 'CXD510' and 'CX8401' whereas 'Bos3155' was round to be superior with respect to total soluble solids in all samples. Inter variety variation in physicochemical parameters at ripe stage revealed that among red varieties, 'CXD510' (fresh and canned) and 'Bos3155' (paste) were best. In the light color varieties, 'CXD276' and 'CX8401' were promising.
Controlled atmosphere storage of fresh black 'Gemlik' olives
(Japanese Society for Horticultural Science, 2006-01) Özer, Mecit Hakan; Akbudak, Bülent; Çetin, Bahattin; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.; Uludağ Üniversitesi/Ziraat Fakültesi/Tarım Ekonomisi Bölümü.; AAH-4101-2021; 55412519000; 56253171700; 56186371400
This study was carried out with fresh olives 'Gemlik' that were to be processed as a table black cultivar. Following harvest, the olives were transferred to a cold storage facility within a few hours and placed in plastic trays. The olives were stored at 5 +/- 0.5 degrees C and 90-95% RH for 9 weeks under different controlled atmosphere (CA) combinations in plastic cells. During the period, physical and chemical analyses were conducted oil samples at 3-week intervals. Our results indicate that olives can be stored, with acceptable quality losses for 6 weeks especially under 2% CO2: 2% O-2: 96% N-2 CA. This situation may be beneficial for the prevention of chilling injury, the preservation of olives in the processing plant and the reduction of waste water.
Değişik uygulamaların "ichinosa" dut odun çeliklerinin köklenmesi üzerine etkileri. 1. Köklendiricilerin etkileri
(Uludağ Üniversitesi, 1997) Soylu, Arif; Akbudak, Bülent; Gümüş, Cevdet; Mert, Cevriye; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.
Bu çalışmada İpekböcekçiliği Araştırma Enstitüsü'nden temin edilen 1.0-1.5 cm çapında ve 30 cm uzunluğunda hazırlanan "İchinosa" dut çelikleri kullanılmıştır. Bu çelik/er, seyreltik (1 00, 200 ve 300 ppm) ve yoğun (1 000, 2000 ve 4000 ppm) IBA konsantrasyonları ve farklı şeker eriyiği konsantrasyonları (%1 O, 20 ve 30) ile muamele edilerek, köklendirilmek üzere alttan ısıtma/ı (22°C ± 2) ortamiara dikilmişlerdir. 40 gün sonra yapılan sayım ve değerlendirmelere göre, köklenme oranı kontrolde % 46. 6 olurken, en iyi sonuçlar 100 ve 200 ppm IBA konsantrasyonlarından sağlanmıştır (DA> 96. 6). Ortalama kök sayısı bakımından, kontrol çelikleri çok düşük değerler (1. 7 adet/çelik) verirken, en iyi sonuçlar 100 ppm (20.8 adet/çelik), 300 ppm (15.2 adet /çelik) ve 1000 ppm (13.8 adet/çelik) IBA konsantrasyonlardan elde edilmiştir. Ortalama kök uzunluğu bakımından ise, kontrole göre (3. O cm) en yüksek değer 2000 ppm'lik IBA uygulamasından (5.8 cm) sağlanmış, 100, 200, 300 ve 1000 ppm'lik IBA uygulamalarından da kontrole göre kısmen veya önemli derecede yüksek değer vermişlerdir. Şeker uygulamaları, köklenme oranını, çelik başına ortalama kök sayısını ve ortalama kök uzunluğunu genellikle belirgin ölçüde etkilenmiştir.
Determination of physicochemical characteristics in different products of tomato varieties
(Taylor & Francis, 2009) Bolkan, Hasan; Cohen, Nancy L.; Akbudak, Bülent; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.; 56253171700
The objective of this work was to study the newly developed and existing tomato (Lycopersicon esculentum Mill.) varieties for physicochemical changes in the fruits in the ripe period. Varieties 'CXD179' and 'CX8401' in fresh and canned, and 'CXD203' and 'CXD276' in paste were found superior with respect to ascorbic acid and antioxidant capacity. The highest lycopene and beta-carotene contents were determined in 'CXD203', 'CXD276', and 'CX8401'. Color values showed a change from a greenness value of 'a' to redness values, whereas 'b' decreased. In general, parameter values were higher in canned samples. Studies showed that the lycopene content best correlated with 'a' values in the ripening. Inter-variety variation in physicochemical parameters at the ripe stage revealed that 'CXD179' and 'CXD203' in all products among red varieties were the best varieties. Among light color varieties 'CXD276' and 'CX8401' in view of red color, and 'CX8400' and 'CX8402' in view of green color were better.
Doğal ve yapay gri küf (Botrytis cinerea Pers:Fr.) bulaşık olan üzümlerin muhafazası üzerine Ultraviolet-C (UV-C) ışık uygulamalarının etkisi
(Uludağ Üniversitesi, 2003) Özer, M. Hakan; Akbudak, Bülent; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.
Çalışma “Müşküle” üzüm çeşidinin muhafazasında gri küften kaynaklanan bozulma ve çürümelerin önlenmesi amacıyla yürütülmüştür. Bu amaca yönelik olarak, söz konusu üzüm çeşidi farklı sürelerdeki (5, 10 ve 20 dk) Ultraviolet-C (UV-C) ışık uygulamasından (100 cm mesafe = 0.25 kJ/m2 ) önce ve sonra gri küf (Botrytis cinerea Pers:Fr.) ile muamele edilmiştir. Ayrıca kontrol grubunu oluşturan bazı meyveler hiçbir uygulamaya tabi tutulmadan soğuk odalara konulurken, bazı meyvelere de sadece UV-C ışık uygulaması yapılmıştır. Bu şekilde tüm meyveler 0±1°C ve %90±5 nispi nem koşullarında 90 gün süreyle muhafaza edilmiş ve raf ömrü durum tespiti amacıyla da muhafaza süresine ilave olarak 3 gün oda koşullarında (22±1°C ve %65±5 nispi nem) bekletilmiştir. Deneme süresince üzüm tanelerinde uygulama öncesi, uygulama sonrası, 0., 30., 60., 90. ve 90+3. gün analizleri ve her analiz döneminde de üzüm tanelerindeki fiziksel ve kimyasal değişimler [ağırlık kaybı (%), solunum hızı (mg CO2/kg h), suda çözünebilir kuru madde (SÇKM) (%), invert şeker (g/100 g), titre edilebilir asit (TEA) (%), pH, spor sayısı (104 ), tane kabuk rengi (L, a, b)] belirlenmiştir. Çalışma sonunda, farklı UV-C uygulamaları arasından özellikle düşük sürelerle uygulanan UV-C uygulaması sonunda yapılan suni Botyrtis cinerea enfeksiyon uygulamasının diğer uygulamalara göre daha etkili olduğu belirlenmiştir.
Effect of calcium and fungicide treatments on postharvest fungal disorders in sweet cherries stored under Normal and Modified Atmosphere Packaging conditions
(Codon Publications, 2004) Eriş, Atilla; Tezcan, Himmet; Akbudak, Bülent; Karabulut, Ozgür Akgün; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.; Uludağ Üniversitesi/Ziraat Fakültesi/Bitki Koruma Bölümü.; AAH-1871-2021; 6602612385; 7003481568; 13606221900; 6603415008
The effect of calcium (Ca) and fungicides on fungal pathogens of sweet cherries. cvs. "Bing" and "0900 Ziraat"', in Normal Atmosphere (NA) and Modified Atmosphere Packaging (MAP) was investigated. The most effective treatment was MAP+iprodione. The MAP+iprodione treatments reduced the percentage of rotted fruit in cv. "Bing" from 23.40 to 7.74% and from 11.89 to 5.75% at the end of the trials in 1998 and 1999, respectively,and in cv. "0900 Ziraat" from 20.14 to 12.90% and from 23.62 to 5.50% in 1998 and 1999, respectively. It was concluded that sweet cherry cvs. "Bing" and "0900 Ziraat" could be stored under MAP conditions for 32 days and 62 days, respectively. The fungi most frequently isolated from, sweet cherry cvs. "Bing" and "0900 Ziraat" were Botrytis cinerea, Penicillium expansum, Monilinia fructicola, Alternaria alternata and Rhizopus stolonifer. The efficiency of Ca, captan and iprodione on these fungi were investigated under in vitro and in vivo conditions, and iprodione was found to be the most effective.
The effect of harpin on shelf life of peppers inoculated with Botrytis cinerea
(Springer, 2013-12) Tezcan, Himmet; Akbudak, Nuray; Akbudak, Bülent; Uludağ Üniversitesi/Ziraat Fakültesi/Bitki Koruma Anabilim Dalı.; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.; AAH-5045-2021; 7003481568; 13605815800; 56253171700
The preservation methods as an alternative to chemical control to prevent postharvest quality losses of peppers were examined. The efficacy of harpin treatments on peppers (Capsicum annuum L. cvs. 'Demre', 'Yalova Charleston' and 'Sari Sivri') was tested in the same conditions in two different years. Peppers grown in greenhouse were applied with four treatments consisting of harpin, Botrytis cinerea, harpin+B. cinerea and control. The harpin in B. cinerea treatments reduced the percentage of rotten fruit in cv. 'Demre' from 42.68% to 22.85%, in cv. 'Yalova Charleston' from 60.87% to 26.59% and in cv. 'Sari Sivri' from 32.83% to 12.82%. The harpin and harpin+B. cinerea peppers had a better overall appearance at the end of shelf-life. Changes in percentage of red fruit and fruit color at the end of shelf life proceeded more slowly in the harpin treated fruit. The treatments of harpin gave the best results in all three cultivars. Moreover, the values obtained from fruits subjected to harpin+B. cinerea were better than those of the fruits picked from the plants only subjected to B. cinerea. In the trials, harpin slowed down the changes leading to quality loss in fruits, in all cultivars. Thus, the positive effect of harpin was revealed more clearly especially in the fruits picked from the inoculated plants.
The effect of low oxygen and high carbon dioxide on storage and pickle production of pickling cucumbers cv. 'Octobus'
(Elsevier Science, 2005-12-21) Akbudak, Bülent; Özer, Mecit Hakan; Uylaser, Vildan; Karaman, Bige; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.; Uludağ Üniversitesi/Ziraat Fakültesi/Gıda Mühendisliği Bölümü.; AAH-4101-2021; AAG-8410-2021; 56253171700; 55412519000; 8228159700; 11639514500
This study was carried out with the aim of determining the optimum storage time and conditions that provide raw material suitable to pickle production. Fresh pickling cucumbers (cv. Octobus) were stored for 30 days at 7 degrees C and 90-95% relative humidity (RH) under different controlled atmosphere (CA) combinations. Samples taken at the beginning and on the 0 (i.e., without storage), 10, 20 and 30 days of storage were processed to sweet pickle. At each sampling, physical and chemical analyses were carried out in the fresh pickling cucumbers to determine the changes in the quality with storage time. Besides, physical, chemical and sensory analyses were carried out in the pickles elaborated from the fresh samples taken at the same periods, after keeping at room temperature for 6 months, with the aim of determining CA and storage time effect on the final pickle quality. It was found that storage of cucumbers to be processed to pickle could be possible for less than 10 days at 7 degrees C temperature and 90-95 RH under normal atmosphere (NA). However, physical and chemical analyses showed that storage period of fresh pickling cucumbers could be prolonged up to 30 days under the same storage conditions, if suitable atmosphere combinations are created. Nevertheless, it was concluded that restricting the storage period of fresh pickling cucumbers to 20 days could give better results after processing to pickle.
Effect of postharvest treatments on storage period and quality in persimmon (Diospyros kaki L.)
(Int Soc Horticultural Science, 2015-01-01) Akbudak, Bülent; Özer, Mecid Hakan; Yener, Tamer; Mauget, JC; Godet, S; Akbudak, Bülent; ÖZER, MECİD HAKAN; Yener, Tamer; Uludağ Üniversitesi/Ziraat Fakültesi; Mauget, JC; Godet, S; AAH-4101-2021; EJP-0187-2022; EHW-5665-2022
In this study, the effect of hot water (HW), low oxygen (O-2), 1-methlycyclopropene (1-MCP) and modified atmosphere packaging (MAP) at storage period and quality were investigated in persimmon (Diospyros kaki L. 'Fuyu') which shows an increasing trend in production year after year in our country and the world. For this purpose, the fruits after harvest were treated with 48 degrees C water for 10 min, low O-2 (1.5%) for 48 h and 1-MCP for 12 h. The fruits were stored in normal (NA) and modified atmosphere packaging (MAP) conditions. Treated and untreated fruits were stored at 0 +/- 1 degrees C with 90 +/- 5% relative humidity (RH) conditions for 90 days. According to the results obtained from the study, low O-2 and 50 mu PE gave more successful results in terms of the quality characteristics.
Effect of pre-harvest harpin and modified atmosphere packaging on quality of cherry tomato cultivars "Alona" and "Cluster"
(Emerald Group Publishing, 2012) Akbudak, Bülent; Akbudak, Nuray; Şeniz, Vedat; Eriş, Atilla; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.; AAH-5045-2021
Purpose - The aim of this research is to determine the effects of pre-harvest harpin (H) and modified atmosphere packaging (MAP) on the storage and fruit quality of cherry tomato (Lycopersicon esculentum Mill. cvs. "Alona" and "Cluster"). Design/methodology/approach - H was used at 50 g 100 1-1 concentration. First application was done on the seedlings in 3-4 leaf stages and the other four applications were repeated at 20-day intervals. Then, treated and untreated fruits were stored in plastic film materials with various O2 and CO2 permeabilities. Findings - Weight loss was significantly higher in tomatoes stored under normal atmosphere (NA) compared to MAP. Initial total soluble solids of 3-4 percent increased to 7-9 percent in without H (WH) + NA. Firmness was measured as 0.44 ("Alona") and 1.20 kg ("Cluster") in H + NA and 0.17 ("Alona") and 0.30 kg ("Cluster") in WH + NA at the end of storage. The acidity and ascorbic acid contents of tomatoes decreased during storage. Between H and WH treatments the levels of lycopene and beta-carotene were different significantly. At the end of the study, H gave successful results in both cultivars. This success was even higher especially when the H was combined with MAP. This combination slowed down the changes in TSS, firmness values. Therefore, H + 50 mu PE (polyethylene) treatment was effective with regard to delaying the maturity along the storage and fruit quality in cherry tomatoes. Originality/value - He is a plant activator. It is the first bacterial hypersensitive response (HR)-elicitor characterized. Effectiveness of H is evaluated on quality changes in treated cherry tomato fruits.
Effect of vacuum, microwave, and convective drying on selected parsley quality (Retracted Article)
(Taylor & Francis, 2013-01) Akbudak, Nuray; Akbudak, Bülent; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü; 13605815800; 56253171700
This study was conducted to evaluate the quality of and structural changes in parsley (Petroselinum crispum Mill.) during vacuum, microwave, and convective (hot air) drying. The selected quality attributes of the dehydrated parsley samples were investigated on the basis of ascorbic acid and chlorophyll retention, as well as color change and overall appearance. Ascorbic acid is an important indicator of quality, and its selection was due to its heat-labile nature. Ascorbic acid deterioration depends on air temperature, microwave power, and drying time. The lowest ascorbic acid value was found after convective drying, followed by vacuum drying and microwave drying. With convective drying, the appearance values of the dried parsley decreased when the drying period was extended. However, with microwave drying, appearance values were not drastically changed. The color values obtained from leaves supported the chlorophyll findings. At the end of the study, microwave drying at 750-850 W ensured the shortest drying time and the best overall quality of parsley; thus, it was chosen as the most appropriate technique for parsley drying.
Effects of controlled atmosphere storage and low-dose irradiation on potato tuber components affecting acrylamide and color formations upon frying
(Springer, 2007-04) Gökmen, Vural; Serpen, Arda; Acar, Jale; Akbudak, Bülent; Eriş, Atilla; Turan, Z. Metin; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.; 13606221900; 6505789772; 6602612385
The effects of normal and controlled atmosphere combinations on tuber components responsible for acrylamide formation were studied during prolonged storage at 9±1 °C using the tubers of "Agria" and "Russet Burbank." The effects of low-dose irradiation (50, 200 Gy) prior to normal atmosphere storage were also studied. There was only a limited increase in the concentrations of sugars during 6 month of storage under normal atmosphere conditions. Low-dose irradiation slightly decreased the rate of sweetening in the tubers. The potential of acrylamide formation remained almost the same; however, the loss of firmness became clearer during 6 month of storage under normal atmosphere conditions. Controlled atmosphere storage in which O2 was deficient to a sufficient respiration increased the concentrations of sugars, and thus, the potential of acrylamide formation in potatoes upon frying at 170 °C for 10 min. The sum of glucose and fructose concentrations showed a good correlation (r 2 ∼ 0.90) with the potential of acrylamide formation for both cultivars.
Effects of harvest time on the quality attributes of processed and non-processed tomato varieties
(Wiley, 2010-02) Akbudak, Bülent; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.; 56253171700
This study examines physicochemical changes in newly developed and existing tomato varieties at different levels of maturity. Serum viscosity is an important factor in the selection of tomato varieties for processing. Most of the attributes indicative of quality for fresh and paste tomatoes occurred at a less mature stage and declined with maturity. The canned varieties 'H9888,' 'H8892' and 'H9780' had a greater ascorbic acid content and antioxidant capacity. The highest lycopene contents were found in the varieties 'H9888,' 'CXD254,' 'CXD222' and 'H9780'. Total soluble solids levels increased with maturity. The highest acidity values occurred in canned 'Shasta', 'CXD254' and 'H9780' varieties. Mid-and late-season varieties harvested at an early stage produced thicker pastes with greater serum viscosity and acidity than tomatoes harvested at other points in the ripening process. The best results were obtained from canned samples of 'H9888,' 'CXD254' and 'H9780.'
The effects of hot and cold water treatment on quality parameters and enzymatic activity in Chestnut
(Galenos Halk Evi, 2017-10-02) Çetin, Murat; Akbudak, Bülent; Özer, Mecit Hakan; Uludağ Üniversitesi/Gemlik Asım Kocabıyık Meslek Yüksekokulu.; Uludağ Üniversitesi/Tıp Fakültesi/Bahçe Bitkileri Bölümü.; AAI-2538-2021; AAH-5045-2021; AAH-4101-2021; 55412519000; 56253171700; 36452005300
This study was carried out in order to limit the biochemical and enzymatic changes occurred after harvested in a variety of (Castanea saliva Mill. cv. 'Sanglaina') chestnuts to prolong the stored period by reduce the loss of quality. Before samples were stored, hot (46 +/- 2 degrees C, 45 minutes) and cold water (15 +/- 2 degrees C, 8 days) treatments were performed. After the hot and cold water treatments the fruits were stored in normal (NA) and controlled atmosphere (CA). In CA storage the fruits were kept in three different atmosphere combinations: (10% CO2 2% O-2; 15% CO2, 2% O-2; 20% CO2, 2% O-2). In both storage methods, chestnuts were stored for 5 months in 0 +/- 1 degrees C temperature and 90 +/- 5% relative humidity conditions. During the storage, parameters such as weight loss (%), content of relative water (%), polyphenol oxidase (PPO) (units mg(-1) protein), soluble solids (degrees brix), starch (mg mL(-1)), total sugar (mg vitamin C (mg 100 macro (potassium, phosphorus, calcium, sodium) and micro (iron, magnesium) elements (mg 100 g(-1)) were examined in the fruit samples taken. Maximum weight loss was examined in the fruit kept in NA whereas total sugar and starch showed less of a change in CA in this present study. PPO enzymatic activity can successfully control with hot water treatment in 15% CO2, 2% O-2 gas combination. When soluble solids was examined, a smaller degree of change was observed in the fruit stored in CA. Promising results were achieved with the fruit that was stored using hot water treatment and 15% CO2, 2% O-2 combination in this study, which was conducted on the 'Sariaslama'chestnut.
Effects of hot water treatment and modified atmosphere packaging on the quality and cold storage life of cherry tomatoes
(Springer India, 2007-03) Akbudak, Bülent; Akbudak, Nuray; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.; AAH-5045-2021; 56253171700; 13605815800
The cherry tomato (Lycopersicon esculentum) cv. 'Cluster' was stored in plastic film with various 0, and CO, permeabilities at 5 +/- 1 degrees C temperature and 90 +/- 5% relative humidity (RH). Cherry tomato was given hot water treatment (HWT) (54 degrees C, 5 min) before storage. Physico-chemical changes were recorded on 0, 7, 14, 21 and 28 days of storage. Weight loss was higher in tomato stored under normal atmosphere (NA) compared to modified atmosphere packaging (MAP). Initial total soluble solids of 4.4% increased to 9.4% in without HWT (WHWT)+NA. Initial firmness was 27.5 N. It was measured as 7.8 N in HWT+NA and 2.9 N in WHWT+NA at the end of storage. The acidity and ascorbic acid contents of tomatoes decreased during storage. The highest values were recorded at the end of storage from the fruit stored under HWT+50 mu PE (polyethylene). Between HWT and WHWT treatments the levels of lycopene and beta-carotene contents differed significantly. Changes in fruit colour at the end of storage proceeded more slowly in the treated fruit. HWT+50 mu PE gave the best result at the end of 28-day storage with respect to the parameters evaluated.
Effects of preharvest and postharvest calcium and modified atmosphere treatments on vase life of gerbera
(WFL Publisher, 2012) Akbudak, Bülent; Murat, Şenay; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.; 56253171700; 55484924000
In the study, the effect of preharvest and postharvest calcium (Ca) and normal (NA) and modified atmosphere (MA) storage treatments were investigated on postharvest quality and vase life of gerbera (Gerbera jamesonii cv. 'Rosalin'). Cut gerberas were preharvest sprayed and postharvest dipped in 1% CaCl2 and subsequently stored in plastic film materials with various permeabilities. Flowers were stored under NA and MA conditions in a cold room at 4 +/- 1 degrees C temperature and 80 +/- 5% relative humidity (RH). In the samples taken from 0, 7, 14, 21, 28 and 35 days were determined some quality changes after 7 days in vase under ambient conditions (22 +/- 1 degrees C and 60 +/- 5% relative humidity). Ca treatment with NA and MA significantly reduced postharvest quality losses. At the end of the study, best postharvest quality characteristics were obtained from 30 mu m polypropylene (PP) and PVC films with Ca.
Evaluation of messenger plant activator as a preharvest and postharvest treatment of sweet cherry fruit under a controlled atmosphere
(Taylor & Francis, 2009) Akbudak, Bülent; Tezcan, Himmet; Eriş, Atilla; Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.; Uludağ Üniversitesi/Ziraat Fakültesi/Bitki Koruma Bölümü.; 56253171700; 7003481568; 6602612385
The preservation methods as an alternative to chemical control to prevent postharvest quality losses of sweet cherry were examined. The efficacy of preharvest and postharvest messenger (M) treatments on sweet cherry cv. '0900 Ziraat' was tested under a controlled atmosphere in 2004 and 2005. The factors investigated included the separate or combined effect of low oxygen, high carbon dioxide and M on the quality and fungal pathogens of sweet cherries in a normal atmosphere (NA) and in a controlled atmosphere (CA). Cherries were placed at six different atmosphere combinations (0.03%: 21% [NA, control], 5%: 5%, 10%: 5%, 15%: 5%, 20%: 5% and 25%: 5% CO2: O-2) at 0 degrees C and 90% relative humidity for up to 8 weeks. Mass values were higher in cherries stored under NA compared with CA. Initial firmness was 1.45 kg and 1.41 kg in fruits without messenger (WM) and in M fruits, respectively; and was measured as 0.30-0.59 kg in WM and 0.57-0.95 kg in M at the end of the trials. The highest acidity and ascorbic acid values were recorded at the end of storage from the fruit stored under CA + M. The CA + M treatment proved the most effective with regard to delaying the maturity and preserving the fruit quality in sweet cherries during storage. Moreover, the CA + M treatments reduced the rotten fruit from 24.06% to 3.80% in cv. '0900 Ziraat'. Better fruit quality was obtained under CA + M compared with NA and CA. The fungi most frequently isolated from sweet cherries were Botrytis cinerea, Penicillium expansum, Monilinia fructicola, Alternaria alternata and Rhizopus stolonifer. It was concluded that sweet cherry cv. `0900 Ziraat' could be stored successfully under CA (20%: 5%) + M, and partially under CA (25%: 5%) + M, conditions for more than 60 days. Thus, it is recommended that CO2 levels for sweet cherry storage can be increased above 15% with M.