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蒜茎叶基丙烯酸酯液体地膜的制备及抗虫性能研究
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作者 李博 马军 李文卓 《中国塑料》 CAS CSCD 北大核心 2024年第8期33-39,共7页
将蒜茎叶废弃物(GL)和丙烯酸酯单体通过乳液聚合的方法制备了具有抗虫功能的可喷涂的GL-丙烯酸酯液体地膜,GL在制备过程中被充分利用。研究了GL用量对于乳液黏度、可喷涂性、芯吸性(wicking)和成膜性的影响,并对GL-丙烯酸酯薄膜的力学... 将蒜茎叶废弃物(GL)和丙烯酸酯单体通过乳液聚合的方法制备了具有抗虫功能的可喷涂的GL-丙烯酸酯液体地膜,GL在制备过程中被充分利用。研究了GL用量对于乳液黏度、可喷涂性、芯吸性(wicking)和成膜性的影响,并对GL-丙烯酸酯薄膜的力学性能、保水性和保温性进行评价。采用扫描电子显微镜(SEM)、红外光谱和热重分析技术对GL-丙烯酸酯薄膜的结构进行了表征,并且对GL-丙烯酸酯薄膜的生物降解性能和抗虫性能进行评价。实验结果表明,在GL与丙烯酸酯单体的质量比为0.5/10时,GL-丙烯酸酯乳液具有优异的成膜性和可喷涂性,GL-丙烯酸酯薄膜具有良好的力学性能,最小的土壤水分蒸发率(19.7%)和最好的土壤保温能力,可以提高28%小白菜种子发芽率,减少6%的叶片受损面积,降低20%的小菜蛾虫生存率。 展开更多
关键词 蒜茎叶废弃物 丙烯酸酯单体 可喷涂液体地膜 抗虫
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公鸡蒜茎汤治疗慢性溃疡性结肠炎42例 被引量:2
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作者 陈永忠 《新中医》 CAS 北大核心 1999年第9期46-47,共2页
关键词 溃疡性结肠炎 中医药疗法 公鸡蒜茎
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齿稜茎小蒜——中国新记录种 被引量:2
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作者 王希华 钱士心 万志刚 《云南植物研究》 CSCD 1999年第4期426-426,共1页
关键词 百合科 齿棱 中国 新记录种
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大蒜不同品种蒜?营养品质分析与评价 被引量:33
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作者 程智慧 杜慧芳 +1 位作者 孟焕文 赵萍 《园艺学报》 CAS CSCD 北大核心 1996年第4期398-400,共3页
关键词 品种资源 蒜茎 营养品质
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Phytochemicals Analysis, Antioxidant Capacities and Antimicrobial Properties of Ethyl Acetate Extract of Stem Bark of the Garlic Tree Scorodocarpus borneensis Becc.
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作者 Sudrajat Sudrajat Dwi Susanto Sudiastuti Sudiastuti 《Journal of Agricultural Science and Technology(A)》 2016年第6期403-410,共8页
The objective of this study was to examine the phytochemical components, antioxidant activity and antibacterial property of ethyl acetate extract of the stem bark of garlic tree (Scorodocarpus borneensis). The dried... The objective of this study was to examine the phytochemical components, antioxidant activity and antibacterial property of ethyl acetate extract of the stem bark of garlic tree (Scorodocarpus borneensis). The dried stem bark of S. borneensis were collected and homogenized after drying at room temperature (32℃) for 30 d. The stem barks were extracted by macerated method using 95% ethanol and then fractionated with ethyl acetate. The dried ethyl acetate extract was subjected to phytoehemical screening to determine the presence of bioactive components using gas chromatography-mass spectrometry (GC-MS). Antioxidant activity of the extract in vitro was examined by 2,2-diphenyl-l-picryl-hydrazyl (DPPH) radical scavenging assay. The antibacterial activity against gram-positive bacteria Staphylococcus aureus and gram-negative bacteria Escherichia coli was performed by disc diffusion assay. GCMS results revealed the presence of 14 different phytocompounds, viz, tetratriacontyl trifluoroacetate (41.61%), 2-pentanone (13.65%), oxacyclotetradecane-2,11-done (7.87%), cinnamic acid (7.53%), 10-octadecanoic acid (6.50%), 1,2-benzeno dicarboxylix acid (4.99%), octadecanoic acid (4.51%), hexadecanoic acid (4.16%), beta tumerone (3.01%), 9-octadecenoic acid (1.70%), tricosanol (1.38%), hexadecano-phenone (1.36%), 1-nonadecanol (0.93%) and n-nonadecanol (0.82%). In vitro antioxidant activity (IC50) was found at 55.524 ppm as high powerful. The results of agar diffusion method showed that the ethyl acetate extracts had an antibacterial activity of 6.687 ± 0.800 mm againts S. aureus at 10% (w/v) and 7.500 ± 0.735 mm against E. coli at 10% (w/v) as moderate category. These findings suggest that S. borneensis stem bark is a valuable sources of bioactive compounds with promising as antioxidant and antibacterial sources. 展开更多
关键词 Stem bark ofScorodocarpus borneensis PHYTOCHEMICALS antioxidant potential antimicrobial properties.
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