The phrase "acidic extract" is correct and usable in written English.
It can be used in contexts related to chemistry, biology, or food science, where a substance has been extracted in an acidic solution.
Example: "The researchers analyzed the acidic extract to determine its potential health benefits."
Alternatives: "sour extract" or "acidic solution".
For the diagnosis of bacterial pathogens responsible for bloodstream infections the mean incubation time to identify Gram-positive bacteria was 5.9 h, which dropped to 3.1 h if a crude acidic extract was prepared [52].
With this aim, we collected sediments at about 50 sites in the inter-tidal part of the estuary in January 2009, 2010, 2011 and 2014, and the concentration of fourteen elements (Al, As, Cd, Co, Cr, Cu, Fe, Mg, Mn, Ni, Pb, Sn, V and Zn) in the acidic extract of the samples was simultaneously measured by ICP/MS.
Only one route specific impurity for the reductive amination method was identified, and this was found only in the acidic extract: 1-phenyl-2-propanol.
The pellets of the acidic extract were dissolved in 50 μl of NaOH (0.1M) and used for protein determination at a dilution of 1 10 (BCA Assay; Pierce).
It is worth noting that this same impurity, 1-phenyl-2-propanol, was not detected in the basic impurity extract; the acidic extract was required for its detection (see Figure 3).
To study the role of proline in ANE-mediated freezing tolerance, the proline content was measured in acidic extracts and quantified spectrophotometrically using an acid-ninhydrin reagent with proline as the standard [ 84].
Then, samples were extracted again as mentioned above (acidic extracts).
The acidic extracts were derivatized by methylation using diazomethane (De Boer and Backer [1956]).
In contrast to DNA sequencing-based approaches, MALDI-TOF MS uses whole cells or crude, acidic extracts, and mass spectra for the identification of individual species [2, 11].
In general, identification rates for yeasts are above 90% and higher when using acidic extracts, as compared to direct transfer of whole cells [38, 50].
The acidic extracts were monitored for positive ions and the basic extracts were monitored for negative ions in independent injections using separate acid/base dedicated 2.1×100 mm Waters BEH C18 1.7 µm particle columns heated to 40°C.
