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In vitro Antioxidant Activity of Resveratrol in Peanut Shell

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Medicinal Plant 2018年第6期9卷 43-45,50页

作者： Jinshuang WEI Jinhong WEI Yunqian LU Wei CHEN Rengao MO suoyi HUANG College of Clinical Medicine Youjiang Medical University for Nationalities College of Basic Medical Science Youjiang Medical University for Nationalities College of Pharmacy Youjiang Medicine University for Nationalities Key Laboratory of Guangxi's College for the Study of Characteristic Medicine in Youjiang River Basin

[Objectives] To study the in vitro antioxidant activity of resveratrol in peanut shell.[Methods] The crude extracts and purified substances were obtained by ultrasonic extraction and extraction,respectively.The scavenging ability and reducing ability of DPPH free radicals,hydroxyl radicals and superoxide radicals were studied and compared with BHT and Vc.[Results]Regardless of crude extract or purified substances,resveratrol in peanut shells had reducing ability,but the crude extract had greater reducing ability than purified substances,Vc and BHT,and the purified substances had greater reducing ability than BHT.At the same concentration,the effects of purified substances on scavenging DPPH free radicals were better than BHT,and the scavenging rate of crude extracts for superoxide radicals was higher than BHT,purified substances,and Vc;the purified substances had certain scavenging effects on the DPPH free radicals,hydroxyl radicals and superoxide radicals;the scavenging effects of crude extract on superoxide radicals increased with the increase of the concentration,but the scavenging effects on DPPH free radicals and hydroxyl radicals dropped with the increase of the concentration.[Conclusions]Crude extracts and purified substances of resveratrol in peanut shell have antioxidant activity.

关键词： Peanut shells Resveratrol Antioxidant activity Free radicals

基于波特-劳勒综合激励理论的高校教学团队激励机制研究

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科教导刊 2022年第7期 14-16,72页

作者：欧朝敏谭索怡刘丽华赵翔李杨国防科技大学系统工程学院湖南长沙410073 湖南农业大学经济学院湖南长沙410128

高水平的教学团队在提升高等教育教学质量中发挥着重要作用,构建教学团队激励机制对于建设高水平教学团队至关重要。文章基于波特-劳勒综合激励理论,从教学奖惩机制、教学管理机制和文化建设机制三个方面论述了教学团队的激励机制。

关键词：波特-劳勒综合激励理论高校教学团队激励机制

一步法合成Fe_(3)O_(4)@DESs纳米颗粒用于蛋白质的萃取研究

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中国食品添加剂 2022年第11期33卷 62-68页

作者：孙科黎彩丽徐玉榕黄锁义陈冉右江民族医学院百色533000

本研究以3种低共熔溶剂(DESs)为溶剂,结合共沉淀法合成不同的Fe_(3)O_(4)@DESs纳米颗粒。研究了基于Fe_(3)O_(4)@DESs的磁性固相萃取法(MSPE)对4种蛋白质(溶菌酶、牛血红蛋白、牛血清白蛋白、卵清蛋白)的萃取效果。实验表明,Fe_(3)O_(4)... 详细信息

本研究以3种低共熔溶剂(DESs)为溶剂,结合共沉淀法合成不同的Fe_(3)O_(4)@DESs纳米颗粒。研究了基于Fe_(3)O_(4)@DESs的磁性固相萃取法(MSPE)对4种蛋白质(溶菌酶、牛血红蛋白、牛血清白蛋白、卵清蛋白)的萃取效果。实验表明,Fe_(3)O_(4)@氯化胆碱-尿素对溶菌酶的萃取效果最好,并通过X射线衍射(XRD)、傅里叶变换红外光谱(FT-IR)和透射电子显微镜(TEM)对Fe_(3)O_(4)@氯化胆碱-尿素的性质和形貌进行了表征。在洗脱实验中,溶菌酶在Fe_(3)O_(4)@氯化胆碱-尿素颗粒上的洗脱率可达94%~98%。在重复性实验中,Fe_(3)O_(4)@氯化胆碱-尿素经15次循环使用后,溶菌酶的萃取率仍保持在90%以上。结果表明,合成的Fe_(3)O_(4)@氯化胆碱-尿素纳米颗粒非常适用于溶菌酶的萃取,是一种稳定、可重复利用、环保的磁性固相萃取材料。

关键词： Fe_(3)O_(4)@氯化胆碱-尿素磁性固相萃取蛋白质溶菌酶

Extraction of Flavonoids from Leaves of Coix lacryma-jobi L.

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Medicinal Plant 2018年第1期9卷 9-12页

作者： Xiaoxiong FENG Yurun LIANG Aiyue LUO Jiandan NONG Shaomei MO Yan NING suoyi HUANG College of Clinical Laboratory Medicine Youjiang Medical University for Nationalities College of Basic Medical Science Youjiang Medical University for Nationalities College of Pharmacy Youjiang Medicine University for Nationalities Key Laboratory of Guangxi Universities on National Medicine in Youjiang River Basin

[Objectives] To extract the flavonoids from leaves of Coix lacryma-jobi L. [Methods] Ethanol extraction method was adopted,spectrophotometry was used,and single factor experiment and orthogonal experiment were carried out to study the effects of ethanol percentage,extraction temperature,solid-to-liquid ratio and extraction time on the extraction of total flavonoids from leaves of C. lacryma-jobi L.[Results] The order of 4 factors influencing the extraction of flavonoids from leaves of C. lacryma-jobi L. was: solid-to-liquid ratio > extraction time > ethanol percentage > extraction temperature. When the extraction temperature was 70℃,the extraction time was 1. 5 h and the solid-liquid ratio was 1: 10,the ethanol percentage was 60%,the extraction effect was the best,extraction of flavonoids was 0. 107 5 mg/m L.[Conclusions] This study is expected to provide a theoretical basis for further development and utilization of C. lacryma-jobi L.

关键词： Leaves of Coix lacryma-jobi L. Flavonoids Extraction Single factor experiment Orthogonal experiment

Study on Intervention of Blood Sugar and Blood Lipid in Diabetic Mice by Abrus Cantoniensis and Armeniaca mume Sieb and Their Compatibility

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TMR Pharmacology Research 2021年第4期1卷 13-19页

作者： Yixin Zhang Shibo Zhao Sitong Lu Danni Lu Yedong Shen Changhuan He Zhonggang Wu suoyi Huang College of Clinical Medicine Youjiang Medical University for NationalitiesBaiseChina Key Laboratory of Guangxi Universities on National Medicine in Youjiang River BaiseChina

Objective:The study aims to explore the interventional effect of Abrus cantonensis and Armeniaca mume Sieb and their compatibility on blood glucose and blood lipid in diabetic mice and to explore the optimal ratio of efficacy of their compatibility.Methods:SPF Kunming male mice were fed with high sugar and high fat diet for 6 weeks and then intraperitoneally injected with STZ solution to establish a diabetes model.The successfully modeled mice were randomly divided into 6 groups according to their body weight:model group,Abrus Cantoniensis group,Armeniaca mume Sieb group,as well as Abrus Cantoniensis and Armeniaca mume Sieb group divided into 1:2,1:1 and 2:1 groups according to volume ratio with 10 mice in each group.Another 10 healthy mice were taken as blank group and intraperitoneally injected with sodium citrate buffer.The corresponding solution was given intragastric administration by body mass once a day for 20 days.After the last administration,fasting was performed for 12 hours.Serum was collected by the method of eyeball blood collection to determine the contents of fasting blood glucose,total cholesterol Triacylglycerol,triglyceride,low density lipoprotein and high-density lipoprotein.Results:Compared with Abrus Cantoniensis and Armeniaca mume Sieb groups,Glu,TG,TC and LDL-C of the three compatibility groups significantly decreased,with the most significant decrease in the compatibility group 1:2,while there was no significant difference in HDL-C among all groups.Conclusion:Abrus Cantoniensis and Armeniaca mume Sieb and their combination have synergistic effects on the improvement of blood glucose and lipid levels in mice with high glucose and high fat combined with STZ-induced diabetes mellitus model.Among all the experimental groups,the compatibility 1:2 group had the best effect.

关键词： Abrus Cantoniensis Armeniaca mume Sieb compatibility diabetes mellitus blood sugar blood lipid

Antioxidant Activity of Different Solvent Extracts of Blumea Megacephala in Vitro

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Medicinal Plant 2018年第4期9卷 49-51页

作者： Xinger ZHOU Yanmei CHEN Meili WEI Guixiang HUANG suoyi HUANG Haifeng LU College of Clinical Medicine Youjiang Medical University for Nationalities College of Pharmacy Youjiang Medical University for Nationalities Key Laboratory of Guangxi Universities on National Medicine in the Youjiang River Basin

[Objectives] The aim was to study the antioxidant activity of different solvent extracts of Blumea Megacephala in vitro. [Methods] The removal rates of DPPH free radicals and ABTS free radicals and the reduction capacity of Fe^(3+) by ethanol extract( EE),acetone extract( AE) and ethyl acetate extract( EAE) of Blumea Megacephala were detected. [Results]The three extracts of Blumea Megacephala had certain antioxidant activity,of which the antioxidant activity of ethyl acetate extract was the strongest and has great potential for development.[Conclusions]The study can provide scientific reference for the deep research on the antioxidant activity of Blumea Megacephala.

关键词： Blumea Megacephala Antioxidant activity Different solvents ABTS DPPH

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软多边形地图要素弯曲识别模型及其应用研究

武汉大学学报（信息科学版） 2006年第2期31卷 160-163页

作者：罗广祥陈晓羽赵所毅长安大学地球科学与国土资源学院西安市雁塔南路6号710054

以边界线构成点的坐标单调性变化分析为基础,提出了地图上软多边形要素弯曲识别模型,给定了弯曲的凸凹性定义,建立了弯曲的多种形态量化指标,规范了弯曲邻接关系的形式及确定方法。研究了模型在软多边形地图要素图形综合简化中的应用,... 详细信息

以边界线构成点的坐标单调性变化分析为基础,提出了地图上软多边形要素弯曲识别模型,给定了弯曲的凸凹性定义,建立了弯曲的多种形态量化指标,规范了弯曲邻接关系的形式及确定方法。研究了模型在软多边形地图要素图形综合简化中的应用,形成了简化这类要素图形的三种基本手段。

关键词：软多边形点序列弯曲歧点单调段二元组序列地图制图综合

鸡骨草生物活性成分及其提取方法与产量提升研究进展

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中华中医药学刊 2020年第10期38卷 210-214页

作者：雷智冬黄锁义广西中医药大学药学院广西南宁530001 右江民族医学院药学院广西百色533000 右江民族医学院广西高校右江流域特色民族药研究重点实验室广西百色533000

目的对鸡骨草的生物活性成分及生物活性成分的提取方法等进行阐述说明,旨在提高对鸡骨草生物活性成分重要价值的认识,为充分开发鸡骨草产品,发展鸡骨草产业提供参考。方法通过查阅书籍资料,查阅国内外文献,对鸡骨草中的生物活性在活性... 详细信息

目的对鸡骨草的生物活性成分及生物活性成分的提取方法等进行阐述说明,旨在提高对鸡骨草生物活性成分重要价值的认识,为充分开发鸡骨草产品,发展鸡骨草产业提供参考。方法通过查阅书籍资料,查阅国内外文献,对鸡骨草中的生物活性在活性成分、成分含量、提取方法以及如何提升这些生物活性成分含量等进展进行综述。结果鸡骨草富含多种生物活性,源于多糖类、黄酮类、生物碱类、三萜类、挥发油、蒽醌类化合物、微量元素和其他种类等多种化学成分;鸡骨草具有多种生物活性,其中以抗肿瘤及抗氧化生物活性研究广泛;鸡骨草生物活性成分的提取方法主要以溶剂提取法、超声提取法为主;规范化种植和科学性施肥与鸡骨草生物活性成分的含量相关。结论鸡骨草的化学成分丰富,使其生物活性多样,在食品、保健品、药品及化妆品等行业具有较好的应用潜力;但如今实验研究发现的有生物活性的化学成分极少。因此,鸡骨草有进一步开发的价值。

关键词：鸡骨草生物活性成分生物活性提取方法产量提升

草果提取方法、生物活性与临床应用研究新进展

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中华中医药学刊 2021年第1期39卷 245-249页

作者：雷智冬黄锁义右江民族医学院药学院广西百色533000 广西中医药大学药学院广西南宁530001 右江民族医学院广西高校右江流域特色民族药研究重点实验室广西百色533000

目的就近10年对草果的新研究现状作一综述,简要分析主要存在的问题,并展望草果的发展前景,为进一步开发和利用壮瑶药材草果提供参考。方法通过查阅书籍资料,查阅国内外文献,对草果的化学成分、提取方法、生物活性以及临床应用等进行综... 详细信息

目的就近10年对草果的新研究现状作一综述,简要分析主要存在的问题,并展望草果的发展前景,为进一步开发和利用壮瑶药材草果提供参考。方法通过查阅书籍资料,查阅国内外文献,对草果的化学成分、提取方法、生物活性以及临床应用等进行综述。结果草果丰富的化学成分使其富含抗炎镇痛、抗肿瘤、抗氧化以及抗菌等多种生物活性;提取方法主要以有机溶剂提取法、水蒸气蒸馏法、超临界CO2提取法以及无溶剂微波萃取法为主;丰富的生物活性使其具有辅助治疗癫痫、治疗慢性肾功能衰竭以及治疗慢性再生障碍性贫血等临床应用。结论草果的化学成分丰富,在药品、保健品、食品及化妆品等行业具有较好的应用潜力。但大多数前人主要研究草果挥发油成分,为科学合理的开发草果并全面的利用,应拓展研究草果其他的化合物类成分。因此,草果有进一步开发的价值。

关键词：草果提取方法生物活性临床应用