Influence of solvent extraction on the dietary fibre fractions of alfalfa protein concentrates

1995 ◽  
Vol 68 (2) ◽  
pp. 187-190 ◽  
Author(s):  
Teresa Hernández ◽  
Carmen Martínez ◽  
Amelia Hernández
Keyword(s):  
Solvent Extraction ◽  
Dietary Fibre ◽  
Protein Concentrates ◽  
Influence Of Solvent

Effect of Solvent Extraction on the Nitrogen Compounds in Alfalfa Protein Concentrates

1995 ◽  
Vol 43 (12) ◽  
pp. 3065-3069 ◽  
Author(s):  
Teresa Hernandez ◽  
Carmen Centeno ◽  
Carmen Martinez ◽  
Amelia Hernandez
Keyword(s):  
Solvent Extraction ◽  
Nitrogen Compounds ◽  
Protein Concentrates ◽  
Effect Of Solvent

scholarly journals Radiocarbon Dating of Alkenones from Marine Sediments: III. Influence of Solvent Extraction Procedures on 14C Measurements of Foraminifera

Radiocarbon ◽  
2005 ◽  
Vol 47 (3) ◽  
pp. 425-432 ◽  
Author(s):  
Naohiko Ohkouchi ◽  
Timothy I Eglinton ◽  
Konrad A Hughen ◽  
Ellen Roosen ◽  
Lloyd D Keigwin
Keyword(s):  
Solvent Extraction ◽  
Climate Changes ◽  
Extraction Procedures ◽  
Surface Ocean ◽  
The Past ◽  
Proxy Records ◽  
Temporal Relationships ◽  
Ocean Properties ◽  
Bermuda Rise ◽  
Influence Of Solvent

As a result of the growing use of multiple geochemical proxies to reconstruct ocean and climate changes in the past, there is an increasing need to establish temporal relationships between proxies derived from the same marine sediment record and ideally from the same core sections. Coupled proxy records of surface ocean properties, such as those based on lipid biomarkers (e.g. alkenone-derived sea surface temperature) and planktonic foraminiferal carbonate (oxygen isotopes), are a key example. Here, we assess whether 2 different solvent extraction procedures used for isolation of molecular biomarkers influence the radiocarbon contents of planktonic foraminiferal carbonate recovered from the corresponding residues of Bermuda Rise and Cariaco Basin sediments. Although minor Δ14C differences were observed between solvent-extracted and unextracted samples, no substantial or systematic offsets were evident. Overall, these data suggest that, in a practical sense, foraminiferal shells from a solvent-extracted residue can be reliably used for 14C dating to determine the age of sediment deposition and to examine age relationships with other sedimentary constituents (e.g. alkenones).

Attachment of Acidithiobacillus ferrooxidans and Bioleaching of Chalcopyrite under Influence of Organic Substances Associated with Copper Solvent Extraction

2017 ◽  
Vol 262 ◽  
pp. 75-78 ◽  
Author(s):  
Xiao Rong Liu ◽  
Hao Zhang ◽  
Hua Long Yu ◽  
Yan Hao Zhu
Keyword(s):  
Solvent Extraction ◽  
Acidithiobacillus Ferrooxidans ◽  
Low Grade ◽  
Organic Substances ◽  
Copper Solvent Extraction ◽  
Influence Of Solvent

Small quantities of organic substances are inevitably entrained and dissolve in the aqueous raffinate during a copper solvent extraction (SX) operation. These organic substances contaminate the bioleaching environment through the loopback of the raffinate. The attachment of cells of Acidithiobacillus ferrooxidans (At. ferrooxidans) to the low grade chalcopyrite ores and the bioleaching of the ores under the influence of solvent extraction organic substances were investigated. The results showed that the cells of At. ferrooxidans were apt to attach on the SX organics-contaminated chalcopyrite ores with an adsorption ratio of about 83%, larger than that of 44% on the uncontaminated ores as a control. However, the bioleaching efficiency decreased from 25% to 15% under the influence of the SX organic substances. Obviously, an improvement of the cells attachment did not improve the bioleaching efficiency of the low grade chalcopyrite ores by At. ferrooxidans in the present of the SX organic substances. The SX organic substances impacted the metabolism of At.ferrooxidans and their bioleaching ability.

Cellulose nanocrystals from acacia bark–Influence of solvent extraction

2017 ◽  
Vol 101 ◽  
pp. 553-561 ◽  
Author(s):  
Ticiane Taflick ◽  
Luana A. Schwendler ◽  
Simone M.L. Rosa ◽  
Clara I.D. Bica ◽  
Sônia M.B. Nachtigall
Keyword(s):  
Solvent Extraction ◽  
Cellulose Nanocrystals ◽  
Influence Of Solvent
Sign in / Sign up

Export Citation Format

Share Document