Effects of Different Cultivation Materials of Edible Fungi on the Quality of Yuhuang Mushroom
Under the background of "Moving of Sericulture from the East to the West", the rapid development of silkworm industry in Guizhou Province has generated a large number of waste mulberry branches, which, if not properly treated, may cause environmental pollution.At the same time, the production of edible fungi lacks a large amount of wood plant raw materials.Therefore, this paper explores the use of these waste mulberry branches as raw materials for edible fungi to achieve regional resource recycling.Combined with the local"zinc and selenium products", this study compares the nutritional components of pruned mulberry branches as raw materials and the addition of zinc and selenium, as well as conventional corncobs, respectively.The study found that there were significant differences in the contents of soluble sugar, soluble protein, reducing sugar, amino acids, and vitamin C in the pileus between the mulberry branch treatment group and the zinc and selenium treatment group.Meanwhile, these contents were higher in the mulberry branch treatment group and the zinc and selenium treatment group than those in the corncob treatment group.Furthermore, the highest polyphenol oxidase activity was found in the zinc and selenium treatment group, the D value fluctuating between 0.200 and 0.853.Similarly, the polyphenol oxidase ac-tivity of the mulberry branch treatment group also showed an increasing trend, with a polyphenol oxidase activity D value fluctuating between 0.11 and 0.12.The content of soluble sugar in the stipe of the mulberry branch treatment group and the zinc and selenium treatment group was 1.21 times that of the corncob treatment group.The content of soluble protein in the mulberry branch treatment group and the zinc and selenium treatment group was 2.59 times and 3.44 times higher than that in the corncob group, respectively.The content of reducing sugar in the mulberry branch treatment group and the zinc and selenium treatment group was 1.58 and 1.17 times higher than that in the corncob group, respectively.The con-tent of amino acids in the mulberry branch treatment group and the zinc selenium treatment group were 1.75 times and 4.13 times higher than that in corncob group, respectively.Similarly, the content of vitamin C in the mulberry branch treat-ment group and the zinc and selenium treatment group was 0.78 times and 1.34 times that of the corncob treatment group, respectively.The activity of polyphenol oxidase in the stipe was the highest in the zinc and selenium treatment group, fluctuating between 0.14 and 0.70.The polyphenol oxidase activity in the mulberry branch group fluctuates between 0.13 and 0.43.And the polyphenol oxidase activity in the corncob treatment group was relatively stable, fluctua-ting between 0.12 and 0.13.The research results suggest that different raw materials of edible fungi affect the nutritional composition of Yuhuang mushroom, and functional edible fungi products need to be developed according to the edible fungi market in the future.
Mulberry branchZinc and seleniumSoluble sugarSoluble proteinVitamin C