Properties of corn germ meal
The properties of corn germ meal are mainly reflected in its nutritional composition, physical characteristics and processing methods. The following is a detailed description of the properties of corn germ meal:
Nutritional content
Protein content: Corn germ meal contains 18% to 20% crude protein, which is relatively high, making it an important protein source in animal feed.
Fat content: The crude fat content of corn germ meal is 1% to 2%, although relatively low, but still provides a certain amount of energy for feed.
Fiber content: The crude fiber content of corn germ meal is between 11% and 12%, which helps to promote the peristalsis of the animal digestive system and improve digestive function.
Amino acid composition: The amino acid composition of corn germ meal is similar to that of corn protein feed, but the content of various limiting amino acids is lower than that of corn protein meal, cotton and rapeseed meal.
Minerals and trace elements: the content of minerals and trace elements in corn germ meal varies according to the processing technology, but usually contains a certain amount of phosphorus, potassium and other elements, which is beneficial to the growth and development of animals.
Physical characteristics
Color: The color of corn germ meal is darker.
Odor: The odor of corn germ meal is acidic.
Appearance: The appearance of corn germ meal is usually irregular fragments or powder, the specific shape depends on the processing technology and the degree of grinding.
Processing method
Dry method and wet method: The oil extraction process of corn germ meal can be divided into dry method and wet method. The crude protein content and crude fiber content of corn germ meal after dry oil extraction were lower, while the corn germ meal after wet oil extraction retained more nutrients.
Hanging pulp treatment: In order to improve the nutritional value and palatability of corn germ meal, it is sometimes carried out hanging pulp treatment, that is, the corn pulp produced in the production process of corn starch is sprayed back onto the corn germ meal, and then dried. In this process, due to the increase of nitrogen content, its crude protein content will rise.
Application:
It's a kind of good feed purified additive for poultry and livestocks growing and disease-resistant. Furthermore,it can also be used to extract natural pigment and various amino acid;
With high protein, they are widely used in feeds industry, especial in shrimp breed aquatics , shrimps are grown well with this supplement.
Corn protein powder is the by-product of starch factory after produced corn starch. Its raw material is corn, by peeling, crashing, deslagging, and extracting starch and then concentrate, dried the yellow water to get protein products. It contains a lot of lutein that has golden color. It is good at encourage and disease-resistant for livestock and poultry. It also can deepen the egg's color, make chicken's skin and legs become yellow, and contain rich amino acids. It is a good additive for animal husbandry and feed industry.
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