The protein content of cotton aphids is as high as 50%, which is a high-quality protein raw material and therefore occupies a very important position in the feed industry. With the continuous change of market demand, users not only have higher and higher requirements for various indicators of cotton aphid, but also have higher requirements for the color of cotton aphid. According to the survey, under the same quality conditions, the price of a yellow cotton jacket is 40 yuan-50 yuan higher than that of a slightly red cotton jacket. Why does the color of the cottonseed produced by the same cottonseed have some reddishness and yellowing? Here is a simple analysis and discussion. First, the reasons for the color of the cotton jacket Mainly due to the degeneration of gossypol in cottonseeds. Gossypol is a pigment unique to cottonseed, which is mainly present in the color glands of cottonseed, and often exists in both free and bound states. Gossypol is yellow crystals. Substances, cottonseeds stored heat for too long, high moisture, high temperature and long-time steaming, can produce denatured gossypol. Denatured gossypol is brownish-red or brownish-black in color, and the color of cotton-wholesales contains a denatured gossypol. Gossypol degeneration reduces the toxicity of cotton aphid, but the color is deepened, affecting the appearance quality. In view of this property of gossypol, a certain grease plant has made the following improvements and adjustments to the production equipment and operation requirements, so that the gossypol in the production process to minimize denaturation, thus ensuring the color of the cotton pupa, and improve the economic value of the product. Second, the processing method Gossypol is a weakly acidic toxic substance that is present in the color glands of cottonseeds. The color glands are tough semi-solids that are hardly destroyed by mechanical treatment. However, when moisture is present, it can be heated very quickly. The destruction causes the free gossypol to diffuse, and then the free gossypol is rapidly degraded under the action of water, heat, air and sunlight, and the toxicity is reduced. Therefore, during the process of oil production, the two steps of steaming and steaming of the cotton embryo are the key steps that affect the color of the cotton pupa. 1. Cotton embryo steaming process: The effect of steaming the cotton embryo directly determines the quality of the fleece oil, the quality of the pancake and the level of oil efficiency. In order to minimize the change of gossypol in cottonseed, we have adopted a reduction in the amount of steaming time to solve. The five-layer steamer and the fryer on the oil press reduce the material layer of the wok, the embryo layer is reduced from 80% of the pot body volume to 60%, and the fry germ layer is reduced from 40% to 25%. The original 2 hours was reduced to 1.5 hours. The steaming and frying time is shortened. In order to reach a proper inlet temperature and press water content, the temperature of the heat transfer oil is used to heat the material embryo, and the temperature of the heat transfer oil is controlled from 150°C-160°C to 180°C-190°C. In addition, according to the moisture of the embryos of cottonseeds, it is appropriate to wet the embryos with water, even without adding water. When frying embryos, in order to drain water as quickly as possible, the height of the steam exhaust header of the steaming pan was increased from 4.5 meters to 7.5 meters, and workers were required to clean the feed embryos adhered to the steam exhaust ports to keep the exhaust ports open. The final moisture content will be controlled at about 5%, and the squeeze temperature will be controlled at about 110°C. In this way, the requirements for steaming of the embryos can be achieved in a shorter period of time, reducing the degeneration of gossypol. 2. Wet-drying process of leaching workshop: The wet-drying process has a great influence on the color of cotton-padded cotton. Most of the production of cotton pupa uses a high-layer dryer to dry the wet hull. The high tier dryer has a high material layer, a strong self-evaporation effect, and good thermal energy utilization. Therefore, the desolvation effect is also very good, but the wet helium is directly vaporized. Spray into the layer, the longer the steam drying time, the redder the color of the cotton quilt. In order to remove the solvent from the wet layer in a short period of time in the direct vapor layer, we modified the high material layer dryer by adding a layer of pre-delamination above the direct vapor injection layer and injecting direct steam into it. The material level of the layer is reduced from 0.8 meters to about 0.3 meters so that the steaming time is reduced from 30 minutes to about 10 minutes. In order to reduce the amount of direct steam injection, steam steam separators that directly pass through the steam are also changed to steam heaters, so that the direct steam becomes superheated steam and then passes into the steaming dryer. This kind of desolventization effect is good under normal circumstances. The amount of residual solvent in the dried cocoons can meet the specified requirements. In the operation, the workers are required to be responsible and responsible for the observation and diligent adjustment. The new solvent must not contain oil and water, minimize the amount of soot contained in the wet, and reduce the burden on the dryer. Through the above adjustments, the quality of cotton quilts has been greatly improved, resulting in the production of products that are bright and bright, and are favored by customers. China Extract Powder For Use As Dietary Supplement Extract Powder, Extract Powder Manufacturer Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.kangnewpharmas.com