Corn endosperm oil

Cornebacteria flavum Corn endosperm oil Corn germ... 

Endosperm constitutes the main part of the corn kernel and consists of 85 to 90% starch, 8 to 10% protein, and a small amount of oil and other compounds. Corn endosperm can be divided into two distinct parts floury and horny endosperm. In floury endosperm, starch particles are round and are dispersed loosely in the protein matrix. In the horny endosperm, the protein matrix is stronger and starch particles are held more firmly. Starch granules are encased in the continuous protein matrix. The tighter setting in horny endosperm gives starch particles a polygonal shape. On average, the amount of horny endosperm in the corn kernel is twice that of the floury endosperm. However, this ratio is a function of the corn kernel protein content (Wolf et al., 1952). 

As with com, the only recoverable crude oil is in the germ it amounts to 76% of the total fat (Table 9.4). Total fat in sorghum is 80-85%, whereas that of com and includes 8% wax (Table 9.3). Germ contains 62% of the total ash in the kernel. About 92% of the total kernel starch is in the endosperm. Unlike corn, another 3.7% of the total... 

Commercial plant germ oils are mainly obtained from cereal grains, such as corn, wheat, and rice. In most cases, the endosperm of the grain is the part of interest for the industrial use of cereals. Starch and proteins are the major components of the endosperm. Endosperm represents 75-85% of the grain and protects the embryo, which is also referred to as germ. 

Starch is obtained from crops by refining in several steps, depending on the crops source. For instance, corn starch is extracted from kernel by wet milling in order to split the kernel and remove the oil-containing germ. Finer milling separates the fibre from the endosperm, which is then centrifuged to separate the less dense protein from the densest starch. 

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