Gene expression profiling using an AFLP-based technique generates a large number of gene fragments that require identification by sequencing. The DNA fragments vary in length from about 50-500 bp. Ion-pair reversed-phase HPLC can be used to purify selected double-stranded DNA fragments that represent differentially expressed genes. The gene fragments are sequenced directly after vacuum drying o...

In this study, the effects of microwave power, vacuum degree and load weight on moisture content seedless white grapes (Vitis vinifera L.) during drying were investigated. The result found that drying, effective diffusivity (Deff) ranged between 1.0232 × 10−9 4.6354 m2/s. Deff values increased with increase in power decrease weight, played a relatively minor role. kinetics ratio time establishe...

The paper is devoted to studying the problem of freeze– drying which is a process of the dehydrating frozen materials by sublimation under high vacuum. The mathematical and the computer models describing this process are presented. The discretizations used and the numerical treatment of the corresponding ordinary and partial differential equations is discussed. The results of some test experime...

The hydrogen and oxygen isotope ratios in hydrous minerals and volcanic glass are routinely used as paleo-proxies to infer the isotopic values of meteoric waters and thus paleo-climatic conditions. We report a series of long-term exposure experiments of distal 7700 BP Mt. Mazama ash ( 149& dH, +7 & dO, 3.8 wt.% H2O) with isotopically-labeled water (+650& dH, +56 & dO). Experiments were done at ...

Drying performance, drying rate, and shrinkage are essential subjects in the field of food technology. Microwave vacuum at room temperature is well known for high-quality fast food. This study presents in-situ continuous measurements samples' mass shape without taking out samples from chamber. The change measurement method ex-situ to demonstrates that microwave heating accelerates water transfe...