نتایج جستجو برای: soluble solid concentration

تعداد نتایج: 635047  

Journal: :applied food biotechnology 0
ali izadi department of chemical engineering, babol university of technology, mazandaran, iran. sobhan mosayebi dorcheh department of mechanical engineering, babol university of technology, mazandaran, iran. hamid rashedi department of chemical engineering, university of tehran, tehran, iran.

substrates' concentration profile was studied in a porous matrix containing immobilized amyloglucosidase for glucose production. this analysis was performed by using an analytical method called least square method, and the results were compared with numerical solution. effects of effective diffusivity, michael's constant, maximum reaction rate and initial substrate concentration were studied on...

Journal: :Annals of the rheumatic diseases 1989
Y Tokano A Murashima Y Takasaki H Hashimoto K Okumura S Hirose

The concentration of soluble interleukin 2 receptor (IL-2R) was determined in the serum of 54 patients with systemic lupus erythematosus (SLE) by an enzyme linked immunosorbent assay (ELISA) using two monoclonal antibodies with the IL-2R. Concentrations of soluble IL-2R in the serum of the patients with SLE (study group) were significantly higher than in 20 normal subjects (control group). The ...

Journal: :nutrition and food sciences research 0
mahshid jahadi kianoush khosravi-darani mohammad-reza ehsani aliakbar saboury alaleh zoghi kourosh egbaltab

background and objectives: fast proteolysis of cheese in ripening process may lead to the premature attack of casein, release of the majority of enzymes into the whey, and loss of cheese composition from curd to whey. in this study, the effect of liposomal flavourzyme on proteolysis of iranian white brined cheese, as well as on the yield and composition of whey and curd was investigated. materi...

2014
Loïc Petigny Sandrine Périno Matteo Minuti Francesco Visinoni Joël Wajsman Farid Chemat

Microwave extraction and separation has been used to increase the concentration of the extract compared to the conventional method with the same solid/liquid ratio, reducing extraction time and separate at the same time Volatile Organic Compounds (VOC) from non-Volatile Organic Compounds (NVOC) of boldo leaves. As preliminary study, a response surface method has been used to optimize the extrac...

Journal: :Acta pharmaceutica 2009
Vikrant Vyas Pankajkumar Sancheti Poonam Karekar Manali Shah Yogesh Pore

Dissolution behaviour of a poorly water-soluble drug, tadalafil, from its solid dispersion systems with poloxamer 407 has been investigated. Solid dispersion systems of tadalafil were prepared with poloxamer 407 in 1:0.5, 1:1.5 and 1:2.5 ratios using the melting method. Characterization of binary systems with FTIR and XRPD studies demonstrated the presence of strong hydrogen bonding interaction...

Journal: :Molecules 2016
Hang Shao Wen-Li Mei Wen-Hua Dong Cui-Juan Gai Wei Li Guo-Peng Zhu Hao-Fu Dai

Three new2-(2-phenylethyl)chromone derivatives (1-3) and a new2-(2-phenylethenyl)chromone derivative (4), together with two known 2-(2-phenylethyl)chromone derivatives (5-6), were isolated from agarwood originating from Gyrinops salicifolia Ridl. The structures of compounds 1-4 were elucidated by comprehensive spectroscopic techniques (UV, IR, 1D and 2D-NMR) and MS analysis, as well as by compa...

2015
S. Maleki Dizaj Zh. Vazifehasl S. Salatin Kh. Adibkia Y. Javadzadeh

The solubility, bioavailability and dissolution rate of drugs are important parameters for achieving in vivo efficiency. The bioavailability of orally administered drugs depends on their ability to be absorbed via gastrointestinal tract. For drugs belonging to Class II of pharmaceutical classification, the absorption process is limited by drug dissolution rate in gastrointestinal media. Therefo...

2011
Min-Soo Kim Jeong-Soo Kim Hee Jun Park Won Kyung Cho Kwang-Ho Cha Sung-Joo Hwang

BACKGROUND The aim of this study was to improve the physicochemical properties and bioavailability of poorly water-soluble sirolimus via preparation of a solid dispersion of nanoparticles using a supercritical antisolvent (SAS) process. METHODS First, excipients for enhancing the stability and solubility of sirolimus were screened. Second, using the SAS process, solid dispersions of sirolimus...

2016
Shaikh Siraj

Over 40% of active pharmaceutical ingredients in development are poorly water soluble drugs which limit formulation approaches, clinical application and marketability because of their low dissolution and bioavailability. Solid dispersion has been considered one of the major advancements in overcoming these issues with several successfully marketed products. Extensive review of the literature in...

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