In the wheat harvest stage, if it encounters rainy weather, the wheat grains will germinate to varying degrees, the 1000-grain weight of the germinated wheat will decrease, and the bulk density will decline, and the milled flour will be black in color, making the steamed buns sticky and noodles. Easy to break, poor quality, such wheat is often called tooth wheat. For this reason, it is necessary to use a fall-value meter to measure and analyze the related parameters such as the falling value of the ground wheat flour, so as to make better use of this kind of flour.
In the natural conditions, the percentage of different germinated grains germinating secretly (hereinafter referred to as the bud rate) are respectively milled with a laboratory rice mill, and each additional 5% of the crop is used as a section, and the stripped seeds are stripped and collected. Divide material, get the number of wheat within the weight of 25% of the sub-samples, determine the drop value difference, the results shown in Figure 1. At the same time, the wheat kernels after grinding were observed with naked eyes, and the position of the drum material on the grain was determined from the part of the grain that was rubbed off. The results showed that the difference in the landing value was less than 4% for wheat with a bud size below 5% of the drum material (dry maladies on the grain, the front of the embryo, and a circle of outer tissue immediately surrounding the embryo). The highest relative indicates that the enzyme activity is relatively strong, and the rest of the drum activities are very low. Falling value instrument measurement With the increase of the percentage of wheat buds, the absolute value of the drop value of each material is gradually increased, and the proportion of the relatively high value of the drop value is gradually increased. In addition to the fact that the difference in landing value of the drums is still relatively high, the drop values ​​of the rest of the drums are obviously increased. In combination with the naked eye, the wheat kernels after grinding are observed. The enhanced amylase activity range extends to the scutellum and its surrounding endosperm as well as to the periphery of the kernel that is further away from the embryo.
According to the results of the fall value meter, when the bud rate reached 30% or more, the difference in landing values ​​of all the foraging materials increased significantly. From a comparative point of view, from the embryo terminal end to the near and far and from shallow to deep, The uniform slope decreases, there is no obvious high and low turning points. The above results show that, with the increase of the germination degree of wheat, a-amylase gradually expands from proximal to distal and shallow to deep to other sites with the embryo terminal as the center, but the embryo, scutellum, and outer tissues around the embryo are always used. The highest enzyme activity per unit weight.
In the natural conditions, the percentage of different germinated grains germinating secretly (hereinafter referred to as the bud rate) are respectively milled with a laboratory rice mill, and each additional 5% of the crop is used as a section, and the stripped seeds are stripped and collected. Divide material, get the number of wheat within the weight of 25% of the sub-samples, determine the drop value difference, the results shown in Figure 1. At the same time, the wheat kernels after grinding were observed with naked eyes, and the position of the drum material on the grain was determined from the part of the grain that was rubbed off. The results showed that the difference in the landing value was less than 4% for wheat with a bud size below 5% of the drum material (dry maladies on the grain, the front of the embryo, and a circle of outer tissue immediately surrounding the embryo). The highest relative indicates that the enzyme activity is relatively strong, and the rest of the drum activities are very low. Falling value instrument measurement With the increase of the percentage of wheat buds, the absolute value of the drop value of each material is gradually increased, and the proportion of the relatively high value of the drop value is gradually increased. In addition to the fact that the difference in landing value of the drums is still relatively high, the drop values ​​of the rest of the drums are obviously increased. In combination with the naked eye, the wheat kernels after grinding are observed. The enhanced amylase activity range extends to the scutellum and its surrounding endosperm as well as to the periphery of the kernel that is further away from the embryo.
According to the results of the fall value meter, when the bud rate reached 30% or more, the difference in landing values ​​of all the foraging materials increased significantly. From a comparative point of view, from the embryo terminal end to the near and far and from shallow to deep, The uniform slope decreases, there is no obvious high and low turning points. The above results show that, with the increase of the germination degree of wheat, a-amylase gradually expands from proximal to distal and shallow to deep to other sites with the embryo terminal as the center, but the embryo, scutellum, and outer tissues around the embryo are always used. The highest enzyme activity per unit weight.
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