Macerals, definition

Here two components, the free phenol and the intact ester, are included in the residue definition. Usually, analytical methods for the determination of bromoxynil and its octanoate begin with hydrolysis during maceration of the sample. If those methods are validated, the sole fortification of the octanoate is sufficient. However, in other existing methods, hydrolysis follows a separate extraction step. In that case, the chosen solvent must be able to extract both compounds with equal efficiency. 

From the possible ranges for /. (exinite 0.50-0.66, vitrinite 0.64-0.81, micrinite 0.81-0.91) it follows definitely that the exinite possesses the smallest and the micrinite the highest aromaticity because there is no overlapping of the / intervals of the three macerals. 

Definition The alcoholic sol n. (10 parts) of macerated Vanilla planifolia (1 part) differs from vanilla extract by having at least 38% ethanol content... 

The extraction of a specific combination of these molecnles could thus be obtained according to the maceration technique used. Certain practices may be beneficial to wine quality in some situations but not in others. Only fundamental research on the chemistry of phenolic compounds will be capable of giving definitive answers. These studies are complicated by the extreme complexity and the high reactivity of the molecules involved (Volume 2, Section 6.3). 

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