نتایج جستجو برای: free microwave extraction sfme

تعداد نتایج: 718892  

Journal: :Carbohydrate polymers 2013
J Prakash Maran V Sivakumar K Thirugnanasambandham R Sridhar

In this study, microwave-assisted extraction was applied for pectin extraction from the dried orange peel and Box-Behnken response surface design was used to study and optimize the effects of processing variables (microwave power, irradiation time, pH and solid-liquid ratio) on the yield of pectin. The amount of pectin extracted increased with increasing microwave power, while it reduces as the...

Melamine trisulfonic acid (MTSA) is utilized as a highly efficient catalyst for the solvent-free condensation reaction of 2-naphthol (2 eq.) with arylaldehydes (1 eq.) under conventional thermal as well as microwave conditions to give the d

Journal: :Molecules 2016
Jue Chen Mengjun Liu Qi Wang Huizhi Du Liwei Zhang

Deep eutectic solvents (DESs) have attracted significant attention as a promising green media. In this work, twenty-five kinds of benign choline chloride-based DESs with microwave-assisted methods were applied to quickly extract active components from Radix Salviae miltiorrhizae. The extraction factors, including temperature, time, power of microwave, and solid/liquid ratio, were investigated s...

2017
Sobia Noreen Fozia Batool Bushra Ijaz Momina Hussain Fatima Bilal

Present study was based upon the phytochemical screening, antimicrobial and antithrombotic potential of a traditional herb Spharenthus indicus (commonly called East Indian globe thistle). A range of solvents from non-polar to polar (n-hexane, ethyl acetate, methanol) were used to attained the extract by employing conventional and modern methods of extraction like orbital shaker assisted extract...

2012
D. Relić D. Đorđević S. Sakan I. Anđelković A. Pantelić R. Stanković A. Radojičić A. Popović

We use conventional, microwave and ultrasound assisted sequential extraction, of defined time and power, techniques for extractions of Cd, Cu, Cr, Ni, Pb and Zn in sediments and certified material. We did not change the conditions of extractions through steps, cause we what to see is there difference in extraction results for the certified material and sediments. We use lower powers and time fr...

A. Ghavami K. Larijani M. Gharachorloo M. Yahyaei, S. Z. Mazhari

Carotenoids are red, orange and yellow pigments, which are widely distributed in fruit and vegetables. The aim of this research is to investigate the effect of conventional, high pressure and microwave cooking on the concentrations of β-carotene in carrot and sweet corn. Raw carrots were washed, peeled and diced to a uniform size and then frozen at -70°C. Sweet corn was also provided in a simil...

Journal: :Birth defects research. Part A, Clinical and molecular teratology 2012
Janee Gelineau-van Waes Mark A Rainey Joyce R Maddox Kenneth A Voss Andrew J Sachs Nicole M Gardner Justin D Wilberding Ronald T Riley

BACKGROUND Fumonisin B(1) (FB(1)) is a mycotoxin produced by a common fungal contaminant of corn. Ingestion of FB(1)-contaminated food is associated with increased risk for neural tube defects (NTDs). FB(1) induces NTDs in inbred LM/Bc mice. FB(1) inhibits ceramide synthase in de novo sphingolipid biosynthesis, resulting in accumulation of sphinganine and sphinganine-1-phosphate (Sa1P). Sa1P fu...

2018
Rahul Vijay Kapoore Thomas O Butler Jagroop Pandhal Seetharaman Vaidyanathan

The commercial reality of bioactive compounds and oil production from microalgal species is constrained by the high cost of production. Downstream processing, which includes harvesting and extraction, can account for 70-80% of the total cost of production. Consequently, from an economic perspective extraction technologies need to be improved. Microalgal cells are difficult to disrupt due to pol...

2017
Mengjie Xu Qingsong Shao Shenyi Ye Shuailing Li Mei Wu Mozhi Ding Yanjing Li

This study used MAE and RSM to extract phenolic compounds from Anoectochilus roxburghii, and the optimum conditions defined by the model to give an optimum yield of 1.31%. The antioxidant activity in vitro showed when the concentration of phenolic compounds was reached 1 mg mL-1, the clearance rates were 82.58% for DPPH and 97.62% for ABTS+. In vivo antioxidant experiments used D-galactose to b...

1999
A Kogut

Improved knowledge of diffuse Galactic emission is important to maximize the scientific return from scheduled CMB anisotropy missions. Cross-correlation of microwave maps with maps of the far-IR dust continuum show a ubiquitous microwave emission component whose spatial distribution is traced by far-IR dust emission. The spectral index of this emission, β radio = −2.2 +0.5 −0.7 , is suggestive ...

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