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魔芋葡甘聚糖/油酸修饰纳米ZnO复合抗菌膜的制备与表征

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食品科学 2021年第21期42卷 153-160页

作者：陈晓涵卢宏政庞杰穆若郡福建农林大学食品科学学院福建福州350002

为提高纳米氧化锌(ZnO)在魔芋葡甘聚糖(konjac glucomannan,KGM)中的分散性,以增强纳米复合膜的抗紫外线性能和抗菌性能,通过油酸(oleic acid,OA)对纳米ZnO进行修饰,制备OAZnO溶液,并采用浇铸法制备KGM/OAZnO纳米复合膜,通过流变学分析... 详细信息

为提高纳米氧化锌(ZnO)在魔芋葡甘聚糖(konjac glucomannan,KGM)中的分散性,以增强纳米复合膜的抗紫外线性能和抗菌性能,通过油酸(oleic acid,OA)对纳米ZnO进行修饰,制备OAZnO溶液,并采用浇铸法制备KGM/OAZnO纳米复合膜,通过流变学分析、傅里叶变换红外光谱分析、X射线衍射分析、微观结构观察、热重分析以及理化性质测定,研究OAZnO的添加对KGM膜结构和理化性质的影响。结果表明,OA提高了纳米ZnO的分散性,傅里叶变换红外光谱分析证实纳米ZnO与KGM分子间形成了较强的氢键,X射线衍射光谱结果表明纳米ZnO中的Zn^(2+)与KGM链上的—OH形成配位键;同时,适量OAZnO(0.49 mL)使纳米复合膜包装机械性能和阻水性能得到增强,其水蒸气透过率较KGM膜降低了35.62%,拉伸强度提高了79.26%。此外,紫外光谱分析和抗菌实验结果表明KGM/OAZnO纳米复合膜具有较强的紫外阻隔性能和抗菌性能。综上,OAZnO的添加可以提高纳米复合膜综合性能,且OAZnO溶液添加量为0.49 mL时最强,可以作为功能性食品包装膜。

关键词：魔芋葡甘露聚糖油酸纳米氧化锌抗菌性能纳米复合抗菌膜

魔芋葡甘聚糖/黄蓍胶复合水凝胶的流变特性及质构性能

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高分子材料科学与工程 2017年第12期33卷 78-84页

作者：龚静妮杨金初袁毅王林吴佳煜穆若郡洪馨庞杰福建农林大学食品科学学院福建福州350002 河南中烟工业有限责任公司技术中心河南郑州450000

为了以高效快捷的方式研制出天然无毒害的水凝胶,文中以魔芋葡甘聚糖(KGM)和黄蓍胶(GT)为研究对象,制得KGM/GT水凝胶。使用旋转流变仪、质构仪分析不同比例KGM/GT水凝胶的流体行为和质构性能,通过红外光谱对KGM/GT水凝胶进行表征。研究... 详细信息

为了以高效快捷的方式研制出天然无毒害的水凝胶,文中以魔芋葡甘聚糖(KGM)和黄蓍胶(GT)为研究对象,制得KGM/GT水凝胶。使用旋转流变仪、质构仪分析不同比例KGM/GT水凝胶的流体行为和质构性能,通过红外光谱对KGM/GT水凝胶进行表征。研究结果显示,KGM/GT水凝胶是由氢键等分子间弱相互作用力缔结而成的热可逆水凝胶,当温度超过40℃时会溶解为溶胶。在一定比例范围内,GT占比越大,KGM/GT水凝胶结构缠结越紧密,凝胶特性越强。当KGM/GT质量比为3∶7时,水凝胶间链的连接最为紧密,硬度达到最大;当KGM/GT水凝胶质量比为5∶5时,胶粘性、咀嚼性、回复性达到最大;当KGM/GT质量比为9∶1时,水凝胶间链的连接最为疏松。

关键词：魔芋葡甘聚糖黄蓍胶水凝胶流变性质质构性能

Influence of Dodecyl Trimethylammonium Chloride on the Structure and Properties of Konjac Glucanmannan

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Chinese Journal of Structural Chemistry 2016年第9期35卷 1339-1347页

作者：穆若郡谭小丹王敏袁毅潘娟庞杰 College of Food Science Fujian Agriculture and Forestry University

This study presents the interaction between konjac glucanmannan（KGM） and cationic surfactant dodecyl trimethylammonium chloride（DTAC） to provide theoretical guidance and prediction for the experimental design and application of this composite system. Dissipative particle dynamics（DPD） method was used to simulate the interaction between KGM and the cationic surfactant. Influences of concentration, temperature and shear process on the structure and properties of aggregates were mainly examined. The results revealed that the density peak increased with the increase of concentration of KGM. With increasing the temperature, density peak moved to the right and increased, and then decreased when the temperature rose to a certain value. The density peak moved to the right at the low shear rate while decreased at the high one. During simulation, the high viscosity related to the low diffusion rate, which made it difficult to form a large continuous phase.

关键词： Konjac glucanmannan(KGM) dodecyl trimethylammonium chloride(DTAC) dissipative particle dynamics(DPD) cationic surfactant Mesoscopic scale simulation

基于OMO模式的课程思政建设创新路径研究——以食品化学类课程为例

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中国食品工业 2024年第1期 135-137页

作者：穆若郡郭炯谭萍萍福建农林大学食品科学学院福建福州350002 西安交通大学管理学院陕西西安710000

OMO教学模式代表线上线下融合,是采用新技术软件为平台的混合式教学。本文从食品化学类课程与“课程思政”创新融合建设思考,以线上平台为媒介,课前预习、课堂探讨、课后评价作为主线,中间贯彻专业能力培养、思想价值塑造,改变以往灌输... 详细信息

OMO教学模式代表线上线下融合,是采用新技术软件为平台的混合式教学。本文从食品化学类课程与“课程思政”创新融合建设思考,以线上平台为媒介,课前预习、课堂探讨、课后评价作为主线,中间贯彻专业能力培养、思想价值塑造,改变以往灌输式教学,提高学生学习主动积极性。研究旨在深入挖掘课程思政与OMO教学模式融合的创新途径,提升“课程思政”教育质量和学生专业素质。

关键词： OMO教学模式思政元素食品化学课程思政研究生教育

A Review of the Development of Properties and Structures Based on Konjac Glucomannan as Functional Materials

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Chinese Journal of Structural Chemistry 2017年第2期36卷 346-360页

作者：袁毅王林庞杰洪馨穆若郡王维海谢丙清 College of Food Science Fujian Agriculture and Forestry University

In recent years, konjac glucomannan（KGM） has gained considerable attention due to its non-toxic, harmless, excellent biocompatibility, biodegradability, good water imbibition as well as gel properties. KGM and its derivatives have been widely used in food science, chemical, pharmaceutical, and material areas. In this review, we will focus on the most recent advances in the structures and properties of KGM. We will first describe the influence of different modification methods on the structures and properties of KGM. Then we will review the results obtained with KGM as functional materials in different studies in the fields of hydrogels, aerogels, nanoparticles, membrane materials, microspheres and microcapsule to provide theoretical basis for the further study.

关键词： glucomannan carboxyl viscosity pharmaceutical biodegradable chains solubility polymerization esters hydrogel

Structure and Potential Application of Konjac Glucomannan Nano Microfibril Aerogel

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Chinese Journal of Structural Chemistry 2016年第1期35卷 166-168页

作者：陈涵穆若郡庞杰谭小丹王敏 Chiang Wei-Yin College of Food Science Fujian Agriculture and Forestry University Physics Department of Harvard University

An ultra-light and high porosity nano microfibril aerogel was prepared from konjac glucomannan（KGM） by the electrospinning and freeze-drying. The structure of aerogel was analyzed by scanning electron microscopy（SEM） and X-ray diffraction（XRD） while the density and compressive strength of the samples were studied separately. Results reveal that porous network structure of the KGM nano microfibril aerogel is constructed by intermolecular hydrogen bonds in random and interpenetrate way. The nano microfibril structure presents in the KGM aerogel,which is an important reason of its high density and compressive strength. There is a potential application for this unique nano microfibril aerogel in the absorption of biodegradation bacteria to solve problems in marine oil spill pollution.

关键词： konjac glucomannan electrospinning nano fibre aerogel absorption of biodegradation bacteria marine oil spill pollution

Effect of Different Conditions on the Structural Color of Konjac Glucomannan Particles

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Chinese Journal of Structural Chemistry 2016年第10期35卷 1525-1531页

作者：谭小丹黄荣勋穆若郡谢丙清袁毅王敏陈涵庞杰 College of Food Science Fujian Agriculture and Forestry University School of Information Science and Engineering Fujian University of Technology

In this paper,molecular dynamics simulation was applied to synthesize a layered structural color from Konjac glucomannan（KGM） and the effect of particle diameter and temperature were investigated. A series of methods such as high voltage electric field treatment,the transfer matrix method and the CIE standard colorimetric system were simulated to obtain the chromaticity coordinates and to analyze the color changes of KGM particles. The results revealed that as the particle diameter increases,the structural color of KGM particles deflects towards the yellow wavelength within the visible spectrum; and as the reaction temperature rises,the structural color deflects towards the blue and violet wavelengths within the visible spectrum.

关键词： Konjac glucomannan(KGM) structural color transfer matrix method CIE standard chromaticity

魔芋葡甘聚糖/聚乙烯醇纳米纤维膜及其释药行为研究

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高分子学报 2017年第3期27卷 498-505页

作者：袁毅穆若郡杨丹谭小丹黄荣勋李崇高谢丙清王敏庞杰福建农林大学食品科学学院福州350002 广州城市职业学院食品系广州510405

为了研制药物缓释效果优良的薄膜材料,利用静电纺丝设备研制不同比重的魔芋葡甘露聚糖/聚乙烯醇纳米纤维膜,并通过扫描电镜、傅里叶变换红外光谱和示差扫描量热法表征纳米纤维膜的结构和性能,结合体外实验和数学模型研究其缓释行为.结... 详细信息

为了研制药物缓释效果优良的薄膜材料,利用静电纺丝设备研制不同比重的魔芋葡甘露聚糖/聚乙烯醇纳米纤维膜,并通过扫描电镜、傅里叶变换红外光谱和示差扫描量热法表征纳米纤维膜的结构和性能,结合体外实验和数学模型研究其缓释行为.结果显示当魔芋葡甘露聚糖含量占纳米纤维膜总质量约76%时,纳米纤维膜中微纤丝粗细最均匀且结点较少,纳米纤维膜中魔芋葡甘聚糖和聚乙烯醇之间存在明显的相互作用,含有5-氨基水杨酸的纳米纤维膜在pH=7.4 PBS磷酸盐缓冲液中25 h的累积释放量大约为45%,显示出良好的药物缓释效果,其缓释行为与Higuchi模型具有较高的拟合度.研究表明利用静电纺丝设备研制的魔芋葡甘聚糖/聚乙烯醇纳米纤维膜可以为药物缓释载体的开发提供理论依据.

关键词：魔芋葡甘聚糖聚乙烯醇静电纺丝纳米纤维膜药物缓释

Progress on the Structures and Functions of Aerogels

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Chinese Journal of Structural Chemistry 2016年第3期35卷 487-497页

作者：穆若郡庞杰袁毅谭小丹王敏陈涵 Wei-Yin Chiang College of Food Science Fujian Agriculture and Forestry University Physics Department of Harvard University

Aerogel materials possess a wide variety of excellent functions,hence a striking number of applications have developed for *** this paper,we present a historic review of the aerogel materials,showing the main concepts,research methods,important scientific problems,formation mechanism,structure characteristics and essence of *** applications are evolving as the scientific and engineering community,which becomes familiar with the unusual and exceptional physical properties of *** addition,we also discuss the huge development potential and prospect of polysaccharide aerogels as the research trend in the future.

关键词： aerogel electrospinning ultralight nanofiber material silicon dioxide insulation adsorption environmental protection optical polysaccharide konjac glucomannan