Results 51 to 60 of about 1,891,382 (287)
Siliao yanjiu, 2023 The experiment was to optimize the extraction process of proopioid and allocryptinine from the root of Macleaya cordata with the aid of ultrasound. The optimal conditions of extraction time, liquid to solid ratio and extraction times were selected by ...
LI Guang-wei +2 more
doaj
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
Molecules, 2023 Response surface methodology (RSM) was used to determine the optimal conditions for ultrasound-assisted extraction (UAE) of Notoginsenoside Fc (Fc) from panax notoginseng leaves.
Zhenghong Guo +5 more
doaj +1 more source
Comparison of different methods for extraction from Tetraclinis articulata: Yield, chemical composition and antioxidant activity [PDF]
, 2013 In the present study, three techniques of extraction: hydrodistillation (HD), solvent extraction (conventional ‘Soxhlet’ technique) and an innovative technique, i.e., the supercritical fluid extraction (SFE), were applied to ground Tetraclinis articulata
Romdhane, Mehrez +4 more
core +1 more source
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
Ion exchange chromatography – basic principles and application [PDF]
, 2011 Ion-Exchange Chromatography (IEC) allows for the separation of ionizable molecules on the basis of differences in charge properties. Its large sample-handling capacity, broad applicability (particularly to proteins and enzymes), moderate cost, powerful ...
Dowling, Oonagh +2 more
core +2 more sources
Optimization of methodology to analyze ascorbic and dehydroascorbic acid in vegetables
Química Nova, 2009 In this study, different solutions to extract vitamin C were tested. High-performance liquid chromatography was chosen and the conditions were based on isocratic elution in reverse phase column.
Flávia Milagres Campos +4 more
doaj +1 more source
Food Production, Processing and Nutrition, 2021 This study used alcoholic ammonium hydroxide to directly hydrolyze and extract secoisolariciresinol diglucoside (SDG) from flaxseed hull in a one pot reaction.
Cong-Cong Zhuang +5 more
doaj +1 more source
Evaluation of headspace Solid Phase Micro-extraction method for analysis of phosphine residues in wheat [PDF]
, 2010 This new method utilizes headspace-solid-phase micro extraction (HS-SPME) for pre-concentration of PH3. Phosphine was determined with gas chromatography/pulsed flame photometric detector (PFPD).
Padovan, B., Ren, Y.L., Ren, Y. L.
core +1 more source
Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers
FEBS Letters, EarlyView.Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui +4 more
wiley +1 more source