نتایج جستجو برای: charged spray
تعداد نتایج: 68662 فیلتر نتایج به سال:
Lipase is used in the production of foods, flavor enhancers, detergents, cosmetics and pharmaceuticals. A common impediment to the production of commercial enzymes is their low-stability aqueous solutions. In this study, the downstream process was investigated to obtain a stable spray-dried lipase powder of Yarrowia lipolytica. The enzyme solution samples were supplemented with different concen...
روش ها مختلفی برای خشک کردن موادی که بصورت محلول، تعلیق و یا خمیری می باشند وجود دارد یکی از روش ها خشک کردن پاششی است . در این روش خوراک تحت تاثیر انرژی اعمال شده بصورت اتمایز می شود کردن یعنی شکست و خردکردن توده خوراک به هزاران قطره ریز که بصورت دیده خواهد شد و انرژی لازم برای این امر از طریق گریز از مرکز، فشار، جنبش و یا صورت تامین می گردد. اگر انرژی بکار برده شده بصورت گریز از مرکز باشد، ات...
objective(s): this study was performed aiming to investigate the effect of particle engineering via spray drying of hydroalcoholic solution on solid states and physico-mechanical properties of acetaminophen. materials and methods: spray drying of hydroalcoholic solution (25% v/v ethanol/water) of acetaminophen (5% w/v) in the presence of small amounts of polyninylpyrrolidone k30 (pvp) (0, 1.2...
Despite major progress in radiotherapy, exponential attenuation of initial photons due to the nature of their interaction with matter has remained as the most important challenge. Photons have no well-defined range and their doses are reduced exponentially. Therefore, tissues located before and after the tumors receive a significant dose. Today, new techniques based on proton and carbon charged...
In order to determine the most appropriate nutrient solution spraying interval and effects of light quality in the root zone on anthurium in aeroponic system, a split plot experiment, with completely randomized design, was carried out in a greenhouse located in the city of Karaj, Iran. In this study, time between the sprays was the main plot and consisted of two levels (2 minutes spray and 30 m...
Abstract Background: Pepper Spray could be utilized for personal defense against human and animals assailants. The symptoms would be exhibited immediately if this spray comes in contact with eyes, nose, throat and the lungs. No comprehensive information is available on the effect of the period of exposure to this spray on anxiety behavior this study was done to determine the effect of OS pepper...
BACKGROUND Topical glucocorticoids are the medical treatment of choice in a majority of patients suffering from nasal polyposis. Fluticasone propionate is a fluorinated steroid reported to be highly effective when used topically in the nose for seasonal and perennial allergic and nonallergic rhinitis. OBJECTIVES To evaluate the efficacy and tolerability of intranasal fluticasone propionate in...
UNLABELLED Spray-dried monoclonal antibody (mAb) powders may offer applications more versatile than the freeze-dried cake, including preparing high-concentration formulations for subcutaneous administration. Published studies on this topic, however, are generally scarce. This study evaluates a pilot-scale spray dryer against a laboratory-scale dryer to spray-dry multiple mAbs in consideration o...
AIMS Probiotic milk-based formulations were spray-dried with various combinations of prebiotic substances in an effort to generate synbiotic powder products. METHODS AND RESULTS To examine the effect of growth phase and inclusion of a prebiotic substance in the feed media on probiotic viability during spray-drying, Lactobacillus rhamnosus GG was spray-dried in lag, early log and stationary ph...
the formulation of hydrophobic drugs for oral drug delivery is challenging due to poor solubility, poor dissolution and poor wetting of these drugs. consequently, the aim of this study was to improve the dissolution of a model poorly water soluble drug, ibuprofen. microparticles containing ibuprofen were produced by spray drying and spray chilling technology in the absence/presence of a hydroph...
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