Absolute oils

Absolute Oil. This is the steam distillable portion of an absolute. Frequently, the absolute oil possesses superior odor properties to that of the corresponding essential oil. 

These methods are primarily for water vapor removal. Removal of lubricating oil is secondary, although all drying systems will reduce its carry-over. It should be understood that complete elimination of lubricating oil, particularly in the vapor form, is very difficult and that when absolutely oil-free air is required, some form of non-lubricated compressor is the best guaranteed method. 

DC 705,4 10 ° mbar). The specified provisions with a liquid-nitrogen-cooled baffle or cold trap would enable an absolutely oil-free vacuum to be produced. 

Absolutely oil-free vacua may be produced in the medium vacuum region with adsorption pumps. Since the pumping action of these pumps for the light noble gases is only small, vessels initially filled with air can only be evacuated by them to about 10 2 mbar. Pressures of lO mbar or lower can then be produced with adsorption pumps only if neither neon nor helium is present in the gas mixture to be pumped. In such cases it can be useful to expel the air in the vessel by first flooding with nitrogen and then pumping it away. 

Absolute Oil. This is the steam distillable portion of an absolute. 

An absolute oil is an aromatic, volatile substance obtained by solvent extraction from a single botanical species, e.g. rose absolute, jasmine absolute. The resulting oil should have nothing added or removed during or after this process. 

As the rose essential and absolute oils are some of the most expensive oils in the market, they are likely to be adulterated. True essential oils may be diluted by the addition of chemicals such as phenylethyl alcohol, diethyl phthalate (DEP), citronellol and geraniol and with fractions from other essential oils such as geranium. The absolute may be adulterated with synthetic fractions of oils such as Peru balsam and clove bud absolute. 

A heterogeneous mixture of lipophilic substances obtained from a plant. Also referred to as absolute oils. Originally referred to as the steam distillate of the rinds of certain citras fmits but extends for more recently used materials such as tea tree oil, which is suggested to have some pharmacological use. 

SYNS AERIAL LAVANDIN OIL LAVANDIN ABSOLUTE LAVANDIN BENZOL ABSOLUTE OIL OF LAVANDIN OIL OF lAVANDIN, AERIAL TYPE... 

Sensors using lasers to send sound waves through oil can measure absolute oil thickness. The time it takes the sound waves to travel through the oil changes little with the type of oil and thus the measurement of this travel time yields a reliable measurement of the oil s thickness. This type of sensor is large and heavy and is still considered experimental. 

Labdanum (absolute/oil/resinoid). Absolute and res-inoid are dark brown, highly viscous masses. L. oil is a golden-brown to brown liquid. The odor is warm, spicy, ambergris-like erogenic and somewhat balsamy dry, wood-like. 

Meroidol, neral oH see orange flower absolute (oil). Nerranic add see erucic acid. 

Occurrence The main component of rose absolute and rose water occurs in small amounts in many flavors and essential oils, e. g., beer, cocoa, and tea flavor, as well as geranium, neroli [see orange flower absolute (oil)], and ylang-ylang oil. Frequently, P. occurs in glycosidic form. ... 

Level of vacuum produced < 1 Torr absolute 10 Torr absolute (with a two-to-four stage unit) <1 Torr absolute (oil sealed) 30 Torr absolute (water sealed) < 1 Torr absolute... 

Enfleurage is a process whereby aromachemicals are absorbed on odorless fats to extract the fragrant compounds of aromatic plants. The fats saturated with aromatic compounds then are extracted with ethanol to obtain an absolute oil upon evaporation of the solvent in vacuo. 

Food. The absolute, oil, and oleoresin are all used as flavor ingredients in major food products, including alcoholic and nonalcoholic beverages, frozen dairy desserts, candy, baked goods, and gelatins and puddings. The oil is also used in meat and meat products, condiments and relishes, and sweet sauces. Average maximum use levels reported are mostly below 0.001%, with the exception of the absolute at about 0.002% (20.3 ppm) used in candy. 

Myrrh oil is used as a fragrance component or fixative in soaps, detergents, creams, lotions, and perfumes, with maximum use level of 0.8% reported in perfumes. The sweet, warm balsamic notes of absolute, oil, or res-inoidused in oriental spice fragrances, woody and forest notes often blended with geranium, musk, patchouli, and other heavy floral bases. ... 

Determination of five PASs by GC-MS in SIM mode in a non-spiked and in a spiked mimosa absolute oil pretreated by using ALEX technique (adapted from David et al, 2006a)... 

Orris Absolute/Oil absolue/essence d iris Oxidized Starches amidons oxydds Ozonolysis ozonolyse... 

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