aromatization


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aromatization

[ə‚rō·məd·ə′zā·shən]
(chemical engineering)
Conversion of any nonaromatic hydrocarbon structure to aromatic hydrocarbon, particularly petroleum.
References in periodicals archive ?
Aromatase is responsible for the final step of estrogen biosynthesis, catalyzing the aromatization of androstenedione and testosterone into estrone and estradiol, respectively (Haynes et al.
According to Tissot and Welte (1984), aromatization of C-ring steroid hydrocarbons occurs in mature oils.
Mehdi Rashidzadeh, head of catalyst and nanotechnology research center of the Research Institute of the Petroleum Industry, said aromatization catalyst production has been indigenized and its mass production will start soon.
berries used for gin aromatization," Food Chemistry, vol.
No information was available on what proportion of women had oophorectomies since this results not only in less estrogen aromatization in bone and fat, but also less circulating androgenic hormones to maintain bone density.
The O/C ratio is considered as an indicator of carbohydrate and carboxylic group contents and can be directly related to aromatization of the peat-forming organic matter (Anderson & Hepburn, 1986).
The PVDF degradation processes implies the formation of different species, such as HF, with the destruction of the original polymer structure and the formation of a conjugated system, crosslinking, branching, and polyene formation, increasing degradation at temperatures ranging 400-600[degrees]C results in the aromatization and ultimately polyaromatization [45-47].
3-Ethyl-2,4-dimethylpyrrole and 4-nitrobenzaldehyde were coupled with catalytic quantities of TFA followed by aromatization with DDQ to yield the respective dipyrrin, which was used to obtain the respective BODIPY after complexation with [BF.
During the early stages of male puberty, there is a relative increase in estrogens derived mostly from peripheral aromatization of testicular and adrenal androgens.
These compounds are created by secondary aromatization reactions in char in the pyrolysis phase of incomplete biomass combustion at temperatures higher than 400 [degrees]C (Fisher et al.
An aspect visually observed during the aromatization and fortification after extrusion is the difficulty of homogenizing the synthetic vitamin in the spreading solution, which may impair the dispersion of the vitamin over the final product.
It is also not known whether androgens independently influence breast cancer risk or simply provide additional substrate at the tissue level for conversion into estrogens; androstenedione can be converted directly by aromatization into estradio (19,13).