نتایج جستجو برای: material extraction

تعداد نتایج: 522337  

2010
Vania Urias-Orona Agustin Rascón-Chu Jaime Lizardi-Mendoza Elizabeth Carvajal-Millán Alfonso A. Gardea Benjamín Ramírez-Wong

A novel pectin was acid extracted from chickpea husk (CHP). CHP presented a 67% (w/w) of galacturonic acid, an intrinsic viscosity of 374 mL/g and a viscosimetric molecular weight of 110 kDa. Fourier transform infrared spectroscopy spectrum of CHP indicated a degree of esterification of about 10%. The CHP-calcium system formed ionic gels with a storage (G') modulus of 40 Pa and gel set time (G'...

Journal: :IOP conference series 2023

Abstract The problems of degradation on oil production can be solved by chemical EOR (Enchanced Oil Recovery) methods, polymer injection is the one kind methods. When fluids injected in to reservoir then it will increase sweep efficiency and fixed mobility ratio fluids. sample that tested this experiments biopolymer. Besides xanthan gum extracted using bacterial, side plant contained a compound...

Journal: :Ultrasonics sonochemistry 2012
En-Qin Xia Ying-Ying Yu Xiang-Rong Xu Gui-Fang Deng Ya-Jun Guo Hua-Bin Li

Oleanolic acid and ursolic acid are the main bioactive compounds in fruit of Ligustrum lucidum Ait, which possess anti-inflammatory, antioxidative, antiprotozoal, antimutagenic and anticancer properties. In this study, the ultrasound-assisted extraction of oleanolic acid and ursolic acid from L. lucidum Ait was investigated with HPLC-photodiode array detection. Effects of several experimental p...

Journal: :The new microbiologica 2010
Kamila Polgárová Michal Behuliak Peter Celec

More than 700 bacterial species inhabit oral cavity of humans. Various oral diseases are related to changes in the structure of this complex community. Their pathogenesis can, thus, be better understood by study of oral microbial flora. As many bacteria are refractory to cultivation, molecular approaches based on PCR followed by downstream analysis are more suitable for community analysis than ...

2016
Caroline Seiler Alan Sharpe J. Carl Barrett Elizabeth A. Harrington Emma V. Jones Gayle B. Marshall

BACKGROUND Advanced genomic techniques such as Next-Generation-Sequencing (NGS) and gene expression profiling, including NanoString, are vital for the development of personalised medicines, as they enable molecular disease classification. This has become increasingly important in the treatment of cancer, aiding patient selection. However, it requires efficient nucleic acid extraction often from...

2016
Andrea A. Andrew Rossana Del Vecchio Yi Zhang Ajit Subramaniam Neil V. Blough

Some properties of dissolved organic matter (DOM) and chromophoric dissolved organic matter (CDOM) can be easily measured directly on whole waters, while others require sample concentration and removal of natural salts. To increase CDOM content and eliminate salts, solid phase extraction (SPE) is often employed. Biases following extraction and elution are inevitable, thus raising the question o...

Mehran Moradalizadeh, Naghmeh Samadi Peyman Rajaei

The genus Haplophyllum, which belongs to the Rutaceae family, includes 18 species in Iran. In this study, after collecting plant material, botanical identification and suitable drying, the essential oils from aerial parts of Haplophyllum robustum Bge. were extracted by three different isolation techniques, conventional hydrodistillation (HD), microwave-assisted hydrodistillati...

Mehran Moradalizadeh, Naghmeh Samadi Peyman Rajaei

The genus Haplophyllum, which belongs to the Rutaceae family, includes 18 species in Iran. In this study, after collecting plant material, botanical identification and suitable drying, the essential oils from aerial parts of Haplophyllum robustum Bge. were extracted by three different isolation techniques, conventional hydrodistillation (HD), microwave-assisted hydrodistillati...

2011
En-Qin Xia Bo-Wei Wang Xiang-Rong Xu Li Zhu Yang Song Hua-Bin Li

Oleanolic acid and ursolic acid are the main active components in fruit of Ligustrum lucidum Ait, and possess anticancer, antimutagenic, anti-inflammatory, antioxidative and antiprotozoal activities. In this study, microwave-assisted extraction of oleanolic acid and ursolic acid from Ligustrum lucidum was investigated with HPLC-photodiode array detection. Effects of several experimental paramet...

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