The higher education in China aims to cultivate advanced talents who would like to be devoted to cause of socialist construction with firm belief in communism and collectivism and mastery of modern science and technol...The higher education in China aims to cultivate advanced talents who would like to be devoted to cause of socialist construction with firm belief in communism and collectivism and mastery of modern science and technology.The significance of ideological education of undergraduates has been constantly aware of in China since the founding of the nation.In this day and age,with the implementation of cultural development strategies by telling Chinese stories well,the ideological education is increasingly significant in higher education.Compared with other majors,foreign language majors are in greater need for ideological instruction since they have to take a series of courses relevant to foreign cultures including but not limited to the general background,geography,history,literature,society and religion of relevant foreign countries.Even when they practice skills such as reading,listening,speaking and writing,they are supposed to have a clear picture of the cultural background of a certain foreign country or region.Meanwhile,there is particular demand for ideological correctness for their future jobs as teachers,translators or interpreters.Apart from taking compulsory courses of ideological and political theory,foreign language majors shall be cultivated through delivery of ideological education by academic courses,national innovation and entrepreneurship education and extra-curricular activities.展开更多
Contamination with Aspergillus flavus,which produces carcinogenic metabolites,during the post-harvest storage of agricultural products seriously endangers human health and safety.In this study,the efficacy of short-te...Contamination with Aspergillus flavus,which produces carcinogenic metabolites,during the post-harvest storage of agricultural products seriously endangers human health and safety.In this study,the efficacy of short-term electron beam irradiation processing with high sterilization efficiency,no contamination and no additives was evaluated for the prevention and control of A.flavus.The effects of irradiation on Aspergillus growth were determined based on analyses of physical and chemical indexes,morphology,mycelial growth,spore germination rates,mycelial dry weights,and toxin-producing ability.The effects of irradiation on the cell membrane and cell wall of A.flavus were investigated based on assays of the chitin content,chitinase activity,protein concentration,and malondialdehyde content.Damage to the antioxidant system was determined by the hydrogen peroxide content,catalase activity,superoxide dismutase activity,superoxide anion radical scavenging activity and rates of 1,1-diphenyl-2-trinitrophenylhydrazine inhibition.The inhibitory effect of irradiation on peanut invasion by A.flavus was verified.After irradiation,the thallus morphology was destroyed,mycelial growth was inhibited,and the spore germination rate,mycelial dry weight,and toxin-producing ability of A.flavus were reduced.Chitinase activity and the malondialdehyde content increased,while the chitin and total protein contents decreased.Catalase activity,superoxide dismutase activity,superoxide anion radical scavenging activity,and the rate of 1,1-diphenyl-2-trinitrophenylhydrazine inhibition decreased,while the hydrogen peroxide content increased after irradiation.These findings suggested that electron beam irradiation can effectively inhibit the normal growth and toxin production of A.flavus.Irradiation increased cell membrane permeability and decreased the integrity of the cell wall.The antioxidant system was damaged to some extent.Compared with that in unirradiated A.flavus,high-dose electron beam irradiation effectively inhibited growth.As a means of postharvest control,electron beam irradiation may have wide applications in the agricultural industry.展开更多
基金Research on corpus and translation of popular items of northeast dialect supported by national undergraduate innovation and entrepreneurship training program(2020)Ideological education program at School of Foreign Studies,Shenyang University of Technology(2020).
文摘The higher education in China aims to cultivate advanced talents who would like to be devoted to cause of socialist construction with firm belief in communism and collectivism and mastery of modern science and technology.The significance of ideological education of undergraduates has been constantly aware of in China since the founding of the nation.In this day and age,with the implementation of cultural development strategies by telling Chinese stories well,the ideological education is increasingly significant in higher education.Compared with other majors,foreign language majors are in greater need for ideological instruction since they have to take a series of courses relevant to foreign cultures including but not limited to the general background,geography,history,literature,society and religion of relevant foreign countries.Even when they practice skills such as reading,listening,speaking and writing,they are supposed to have a clear picture of the cultural background of a certain foreign country or region.Meanwhile,there is particular demand for ideological correctness for their future jobs as teachers,translators or interpreters.Apart from taking compulsory courses of ideological and political theory,foreign language majors shall be cultivated through delivery of ideological education by academic courses,national innovation and entrepreneurship education and extra-curricular activities.
基金supported by The National Natural Science Foundation of China(No.31860458)The Natural Science Foundation of Guangxi Province(No.2017JJA130645Y).
文摘Contamination with Aspergillus flavus,which produces carcinogenic metabolites,during the post-harvest storage of agricultural products seriously endangers human health and safety.In this study,the efficacy of short-term electron beam irradiation processing with high sterilization efficiency,no contamination and no additives was evaluated for the prevention and control of A.flavus.The effects of irradiation on Aspergillus growth were determined based on analyses of physical and chemical indexes,morphology,mycelial growth,spore germination rates,mycelial dry weights,and toxin-producing ability.The effects of irradiation on the cell membrane and cell wall of A.flavus were investigated based on assays of the chitin content,chitinase activity,protein concentration,and malondialdehyde content.Damage to the antioxidant system was determined by the hydrogen peroxide content,catalase activity,superoxide dismutase activity,superoxide anion radical scavenging activity and rates of 1,1-diphenyl-2-trinitrophenylhydrazine inhibition.The inhibitory effect of irradiation on peanut invasion by A.flavus was verified.After irradiation,the thallus morphology was destroyed,mycelial growth was inhibited,and the spore germination rate,mycelial dry weight,and toxin-producing ability of A.flavus were reduced.Chitinase activity and the malondialdehyde content increased,while the chitin and total protein contents decreased.Catalase activity,superoxide dismutase activity,superoxide anion radical scavenging activity,and the rate of 1,1-diphenyl-2-trinitrophenylhydrazine inhibition decreased,while the hydrogen peroxide content increased after irradiation.These findings suggested that electron beam irradiation can effectively inhibit the normal growth and toxin production of A.flavus.Irradiation increased cell membrane permeability and decreased the integrity of the cell wall.The antioxidant system was damaged to some extent.Compared with that in unirradiated A.flavus,high-dose electron beam irradiation effectively inhibited growth.As a means of postharvest control,electron beam irradiation may have wide applications in the agricultural industry.
