The effect of different preparative procedures for electron microscopy on the size and shape of murine oncornaviruses has been studied. With conventional negative staining procedures using neutral sodium phosphotungstate, both murine mammary tumor virus and murine leukemia virus appeared in head-and-tail forms, with a peak head diameter of 122 and 130 nm, respectively. Negative staining with ur...

9 Abstract The drying process of fresh plant materials may 10 affect the porous structure, dehydration and a number of 11 quality characteristics of these materials. Therefore, this 12 study has investigated the effect of different drying pro13 cesses on the variation of metal and metalloid concentra14 tions in the dried plant materials. Seven varieties of native 15 plant species collected from...

Okara is a nutritionally valuable by-product produced in large quantities as result of soymilk elaboration. This work proposes its use as both culture and dehydration medium during freeze-drying, spray-drying, and storage of Lactobacillus plantarum CIDCA 83114. Whole and defatted okara were employed as culture media for L. plantarum CIDCA 83114. The growth kinetics were followed by plate counti...

Tomato is one of the most cultivated vegetables, playing important role in human feed. Due to its characteristics and composition, tomatoes present reduced shelf life, preservative techniques are required. In this study, response surface methodology was used optimize process conditions during osmotic dehydration (OD) tomato slices, through desirability function. Optimization factors were absolu...

In simulations and experiments, we study the drying of films containing mixtures of large and small colloidal particles in water. During drying, the mixture stratifies into a layer of the larger particles at the bottom with a layer of the smaller particles on top. We developed a model to show that a gradient in osmotic pressure, which develops dynamically during drying, is responsible for the s...

Bu çalışmada balkabağının (Cucurbita moschata) kurutma kinetiği ve bazı fonksiyonel özellikleri üzerine ultrases destekli ozmotik dehidrasyon (US-OD) ön işleminin etkisi araştırılmıştır. Örnekler 3 farklı konsantrasyonda (%12.5, %25 %50) şeker çözeltisi içeren ultrasonik banyo içerisinde kavitasyon işlemi ile (45 kHz, 90 dakika) dehidre edilmiş ardından sıcak havada yöntemi kullanılarak 60oC sı...