Sofralık üzümlerin hasat sonrası hastalıklarına karşı modifiye atmosfer paketlerin ve antimikrobiyal filmlerin kullanımı
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Date
2019-10-08
Authors
Topuz, Mehmet
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Publisher
Bursa Uludağ Üniversitesi
Abstract
Bu çalışmada; 2017 yılında Manisa Alaşehir bölgesinde üretilen Superior Seedless, Sultani ve Red Globe çeşidi üzümler kullanılmıştır. Hasat edilen üzümler, 5 farklı modifiye atmosfer pakete konulup, 8 saat ön soğutma uygulandıktan sonra paketler kapatılmıştır. Ürünler çürüme oranları göz önünde bulundurularak Superior Seedless 45 gün, Sultani 43 gün, Red Globe 72 gün süre ile 3±0,5°C ve %90-95 oransal nemde muhafaza edilmiştir. Ürünlerin muhafaza öncesi mikrobiyal yükleri tespit edilip, muhafaza sırasındaki gaz konsantrasyonlarındaki değişim, ağırlık kayıpları, kg başına düşen çürük tane sayısı, sap kararması, tanelenme miktarı, meyve tadındaki ve rengindeki değişimler ve mikrobiyal yükleri belirlenmiştir. Muhafaza sonunda modifiye atmosfer paketlerinde ölçülen O2 (%) ve CO2 (%) oranlarınındaki farklılıklar, ambalajların gaz geçirgenliklerinin farklılığını göstermiş ve muhafaza süresince üzümlerin ağırlık kaybını önemli şekilde sınırlandırmıştır. Çalışmada kullanılan antimikrobiyal paket ve bu paketin ¼ SO2 jeneratörü ve antimikrobiyal filmler ile kombinasyonlarının, bazı kalite kriterlerine etkilerini farklı düzeyde etkilediği ve çürüme oranını düşürdüğü tespit edilmiştir. Çalışma sonucunda, antimikrobiyal özelliğe sahip paketin, SO2 jeneratörlerine alternatif olabileceği ve modifiye atmosfer paketleri yerine kullanılabileceği ortaya konulmuştur.
In this study; Superior Seedless, Sultana and Red Globe grapes produced in Manisa Alasehir region were used in 2017. The harvested products were put into 5 different modified atmosphere packages and after 8 hours pre-cooling, the packages were taken to the cold storage. The products were stored for 45 days for Superior Seedless, 43 days for Sultana, and 72 days for Red Globe in 3±0,5°C and 90-95% relative humidity. Microbial analysis of the products was carried out before storage, the changes in gas concentrations during storage and after storage weight loss, the number of rotten berry per kg, quality criteria and microbiological analysis results were determined. Differences in the measured O2 and CO2 ratios in the MA packages have shown that the packaging materials have different gas permeabilities. Packing of grapes during storage has prevented the loss of weight which may occur in the products. After storage, the number of rotten grain per kg of the products in the packages was determined and compared with the decay rates of the polyethylene packages and antimicrobial packages used in the experiment. In addition, the quality criteria of the products; rachis appearance, berry appearance, berry color, taste were determine. The antimicrobial package used in the study and the combination of this package with ¼ SO2 generators and antimicrobial pads have been found to affect the quality criteria assessed in the trial at different levels but generally reduce product decay. As a result of the study, it was determined that packages with AM capability could be used instead of classic SO2 generator.
In this study; Superior Seedless, Sultana and Red Globe grapes produced in Manisa Alasehir region were used in 2017. The harvested products were put into 5 different modified atmosphere packages and after 8 hours pre-cooling, the packages were taken to the cold storage. The products were stored for 45 days for Superior Seedless, 43 days for Sultana, and 72 days for Red Globe in 3±0,5°C and 90-95% relative humidity. Microbial analysis of the products was carried out before storage, the changes in gas concentrations during storage and after storage weight loss, the number of rotten berry per kg, quality criteria and microbiological analysis results were determined. Differences in the measured O2 and CO2 ratios in the MA packages have shown that the packaging materials have different gas permeabilities. Packing of grapes during storage has prevented the loss of weight which may occur in the products. After storage, the number of rotten grain per kg of the products in the packages was determined and compared with the decay rates of the polyethylene packages and antimicrobial packages used in the experiment. In addition, the quality criteria of the products; rachis appearance, berry appearance, berry color, taste were determine. The antimicrobial package used in the study and the combination of this package with ¼ SO2 generators and antimicrobial pads have been found to affect the quality criteria assessed in the trial at different levels but generally reduce product decay. As a result of the study, it was determined that packages with AM capability could be used instead of classic SO2 generator.
Description
Keywords
Modifiye atmosfer paket (MAP), Grape, Üzüm, Muhafaza, Kalite kriterleri, Çürüme, Antimikrobiyal MAP, Modified atmosphere package (MAP), Storage, Quality, Decay, Antimicrobial MAP
Citation
Topuz, M. (2019). Sofralık üzümlerin hasat sonrası hastalıklarına karşı modifiye atmosfer paketlerin ve antimikrobiyal filmlerin kullanımı. Yayınlanmamış doktora tezi. Bursa Uludağ Üniversitesi Fen Bilimleri Enstitüsü.