Grain processing is the grinding, pressuring and heating of grain to improve the digestibility of nutrients found within grain, enhancing feed efficiency. This is done using grain processing machinery. Grain processing is one of the oldest and most important of all food technologies and forms a large and important part of the food production chain. Grains are also processed for the purpose of improving palatability, to improve handling characteristics, to reduce the presence of toxic substances, and to preserve them better. Browse through this category for various grain processing machinery available in Zambian stores.
Grain processing as exemplified by flour milling is essentially a physical process whereby the kernel is cleaned, adjusted to an appropriate moisture content and then mechanically reduced to the desired particle size to produce a flour and by-products (e.g. bran).
While refining, that is, removal of the bran and the germ, reduces the nutrient content of grain, milling of grains otherwise concentrates desirable grain components and removes poorly digested compounds and contaminants. Cooking of grains generally increases digestibility of nutrients and phytochemicals.
A milling machine removes material from a work piece by rotating a cutting tool (cutter) and moving it into the work piece. Milling machines, either vertical or hori- zontal, are usually used to machine flat and irregularly shaped surfaces and can be used to drill, bore, and cut gears, threads, and slots.
There are 2 main types of milling that you will find in a home wheat grinding machine:
Refined grains include white flour, white rice and white bread. Many breads, cereals, crackers, desserts and pastries are made with refined grains. Enriched grains. Enriched means that some of the nutrients lost during processing are replaced.
Whole grains can help to keep your gut healthy, blood sugar levels stable, and aid in weight loss. New milling techniques discovered in the late 1800s allowed refined grains to emerge. This process removes the germ and bran which improves the texture, palatability and shelf life of grains and grain products.
Among the oldest methods of preservation are drying, refrigeration, and fermentation. Modern methods include canning, pasteurization, freezing, irradiation, and the addition of chemicals.
Grains are the seeds of grass-like plants like wheat, rice and corn, which are called cereals. Non-grass plants called pseudo cereals also have seeds that are considered whole grains; these include quinoa, buckwheat and brown rice. Grains are commonly found in bread, pasta and breakfast cereals.
The grain crusher's main purpose is to crush the grains of all types of leguminous plants and grain.