The impurities contained in sesame can be divided into three categories: organic impurities, inorganic impurities and oily impurities.
Inorganic impurities mainly include dust, silt, stones, metals, etc. Organic impurities mainly include stems and leaves, skin shells, wormwood, hemp rope, grains, etc. The oil-containing impurities are mainly pest-damaged kernels, imperfect kernels, and heterogeneous oilseeds.
During the sesame processing process, what impact will the impurities have if they are not cleaned up?
1. Reduce the oil yield
Most of the impurities contained in sesame seeds do not contain oil. During the oil production process, not only does the oil come out, but a certain amount of oil will be absorbed and remain in the cake, which will reduce the oil yield and increase the oil loss.
2. The oil color becomes darker
Impurities such as soil, plant stems and leaves, and skin shells contained in the oil will deepen the color of the oil produced.
3. Odor
Some impurities will produce odor during processing
4. Increased sediment
5. Production of polycyclic aromatic hydrocarbons such as benzopyrene
Organic impurities produce carcinogens during roasting and heating, which affect human health
6. Burnt smell
Organic light impurities, debris, etc. are easy to burn, causing sesame oil and sesame paste to produce a burnt smell.
7. Bitter taste
Burnt and carbonized impurities cause sesame oil and sesame paste to taste bitter.
Eight, dark color, black spots
Burnt and carbonized impurities cause tahini to have a dull color, and even many black spots appear, affecting the appearance of the product. 9. Reducing the quality of crude oil will also adversely affect the quality of by-products such as cakes.
10. Affect production and safety
During the production process, hard impurities such as stones and iron impurities in the oil enter the production equipment and conveying equipment, especially the high-speed rotating production equipment, which will wear and damage the working parts of the equipment, shorten the service life of the equipment, and even cause production ACCIDENT. Long-fiber impurities such as wormwood and hemp rope in the oil can easily wind up on the rotating shaft of the equipment or block the inlet and outlet of the equipment, affecting the normal production and causing equipment failure.
11. Impact on the environment
During the transportation and production process, the flying of dust in the sesame causes the environmental pollution of the workshop and the deterioration of the working conditions.
Therefore, effective cleaning and removal of impurities before sesame processing can reduce oil loss, increase oil yield, improve the quality of oil, sesame paste, cakes and by-products, reduce equipment wear, prolong the service life of equipment, and avoid production Accidents, ensure the safety of production, improve the effective processing capacity of equipment, reduce and eliminate dust in the workshop, improve the operating environment, etc.
Post time: Mar-13-2023
