Как выбрать гостиницу для кошек
14 декабря, 2021
Vegetable oils may or may not be edible, as explained in Section 2.1.1. Even though most efforts in producing biodiesel have been using edible oils, biofuel and, in particular, biodiesel can also be produced using inedible oils [6].
The most frequently used method of characterizing the chemical structure of a vegetable oil is the fatty acid composition, which shows the distribution of different kinds of fatty acids, the carbon numbers of ingredient fatty acids, location of double bonds in the fatty acid molecular structure, ratio of saturated versus unsaturated fatty acids, and more. Table 2.3 shows fatty
TABLE 2.2 Typical Oil Extraction Efficiency of Various Extraction Methods
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acid compositions of common edible oils in terms of percent by weight of total fatty acids.
The specific gravity of most edible vegetable oil ranges between 0.91 and 0.93, depending upon the kind of vegetable oil, specific composition of the oil, purity, and other factors. The specific gravity of castor oil, an inedible oil, is approximately 0.957-0.961.