Response surface methodology (RSM) was used to investigate the extraction condition of polysaccharide from cup plant (Silphium perfoliatum L.) (named CPP). Water to raw material ratio (10-30 mL/g), extraction time (40-80 min) and extraction temperature (60-100°C) were set as the 3 independent variables, and their effects on the extraction yield of CPP were measured. In addition, the effects of ...

BACKGROUND Although mouse spermatozoa can be freeze-dried without losing their reproductive capacity, the technique needs further improvements to reduce the incidence of chromosomal damage to spermatozoa. Effects of freeze-drying on human spermatozoa are unknown. METHODS Mouse spermatozoa were suspended in a Tris-buffered EGTA solution briefly (10 min at 37 degrees C) or for 1-7 days at 4 deg...

BACKGROUND Freeze-drying sperm has been developed as a new preservation method where liquid nitrogen is no longer necessary. An advantage of freeze-drying sperm is that it can be stored at 4 °C and transported at room temperature. Although the successful freeze-drying of sperm has been reported in a number of animals, the possibility of long-term preservation using this method has not yet been ...

The aim of this study was to develop a freeze-drying protocol facilitating successful processing of plant material containing the small surface antigen of hepatitis B virus (S-HBsAg) while preserving its VLP structure and immunogenicity. Freeze-drying of the antigen in lettuce leaf tissue, without any isolation or purification step, was investigated. Each process step was consecutively evaluate...

     Production and characterization of soft cross-linked gelatin sponge by using glutaraldehyde for blood hemostasis application, is the goal of this study. Biodegradable hydrogels were prepared through crosslinking of gelatin with glutaraldehyde followed by freeze drying. The effects of gelatin concentration, amount of crosslink agent and freeze drying temperature on mechanical properties and...

A green, rapid, and facile synthesis method of activated carbon was developed optimized using 50 nm MgO nanoparticle (NP)-based pore templating in tandem with an integrated drying carbonization-activation heat treatment. TEMPO-oxidized cellulose nanofibers (TOCN) were mixed NPs KOH, freeze-dried, treated first at 350 °C then 800 to get templated carbon. Selective formation by KOH resulting the ...

In this talk we present a simple model describing the p⊥-spectra of various hadrons measured recently at RHIC. Our approach combines the thermal model, used frequently in the studies of the relative hadron yields [1-10], with a model of the hydrodynamic expansion of matter at freeze-out. The main assumptions of the model are as follows [11-13]: First of all, we assume that the chemical freeze-o...

We present a simple model describing the p⊥-spectra of hadrons measured at RHIC at √ sNN = 130 GeV. Our approach is a combination of the thermal model, used frequently in the studies of the relative hadron yields [1–9], with a model of the hydrodynamic expansion of matter at freeze-out. The main assumptions of the model [10–12] are as follows: i) the chemical freeze-out and the thermal freeze-o...

PURPOSE To provide a systematic review with meta-analysis for addressing the relationship between fecal bile acids (FBAs) and colorectal cancer. MATERIALS AND METHODS Electronic databases were searched for all observational studies that examined the relationship between FBAs and colorectal cancer or adenoma, and calculated weighted mean difference (WMD) and 95% confidence interval (CI). Publi...

Abstract Background Probiotics are live microbial supplements known for its health benefits. Consumption of probiotics reported to improve several benefits including intestinal flora composition, resistance against pathogens. In the recent years, there is an increasing trend probiotic-based food products in market. Main body cells targeted reach large intestine, and must survive through acidic ...