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关键词： 药学专业   物理化学   课程思政   设计与探索  

摘要： 对在药学专业物理化学中融入课程思政元素进行了设计与探索。首先,改革后的教学目标除知识目标外,增加了5个素质目标;其次,围绕素质目标对教学内容进行设计,融入五大思政要素,在专业课中引入“狭义”思政元素,即思想品德教育;再次,通过教学环节的设计,采用多种教学模式,培养学生的综合素质,引入“广义”思政元素;最后,在教学效果评价中增大素质目标考核的比例,促进素质目标的达成。通过以上途径,在实际教学中取得了较好的效果,一定程度完成了专业课的育人职责。

关键词： Arabinoxylan hydrolysate   Soy protein isolate   Maillard conjugates   beta-Carotene emulsions   Physicochemical stability  

摘要： The physicochemical stability of beta-carotene emulsions and the bioaccessibility of beta-carotene stabilized by arabinoxylan hydrolysate (AX(H))-soy protein isolate (SPI) conjugates (formed by dry heating) was evaluated. p-Carotene emulsions were prepared using SPI, AX(H)/SPI mixtures and AX(H)-SPI conjugates separately. Results of mean droplet size and zeta potential indicated that AX(H)-SPI conjugates-stabilized emulsions are less sensitive to environmental stress, and exhibit better stability during long time storage and simulated gastrointestinal digestion, as compared with emulsions stabilized with AX(H)/SPI mixtures or SPI alone. In addition, emulsions stabilized by AX(H)-SPI conjugates exhibited higher chemical stability and bioaccessibility of beta-carotene. These results suggested that AX(H)-SPI conjugates-stabilized emulsions developed in this study have potential applications as protectors and carriers of liposoluble active ingredients.

关键词： Origin   物理化学实验   三元相图   蔗糖转化  

摘要： 探讨Origin软件在处理物理化学实验数据中的优势,并列举Origin软件在三元相图的绘制等物理化学实验教学中的应用实践,以加强相关专业大学生在实验数据处理、结果分析及科学研究中的应用能力。

关键词： 新工科   物理化学实验   教学改革  

摘要： 在新工科背景下,作为新能源科学与工程专业专业基础课的物理化学实验教学,怎么培养学生动手能力、分析解决问题能力、提升学生创新能力和科研思维值得深入研究.从物理化学实验课程现状入手,对教学内容、教学模式和课程考核等方面存在的问题进行探究,提出一些初步建议及改进措施,以期培养出契合我国科学技术发展的复合型人才,满足新工科背景下区域经济发展对新能源科学与工程专业人才的需求.

关键词： 教学研究   线上线下结合   混合式教学   物理化学  

摘要： 以我校药物制剂专业学生为教学对象,采用线上线下结合的物理化学课程教学方案,辅以不同的线上章节测试考查策略。通过分析并比较各班级线下期末考试成绩及各章节线上测试成绩,从学生行为、教师策略、教学平台技术等方面总结了物理化学线上线下结合教学的现状,并分别提出了相关的对策建议。指出线上题库等考核资料建设与完善、更为严格的考核策略与不断迭代更新的考核技术、线上教学平台与授课教师在技术层面上的深度合作应为线上线下结合教学模式在今后需要着力完善的工作重点。

关键词： Bioative   Light cream cheese spread of goat milk   Brazilian cheese   Fat reduction   &ldquo   Requeijao cremoso&rdquo  

摘要： This study aimed to develop a light cream cheese spread of goat milk enriched with phytosterols, and to evaluate the physicochemical, rheological, and microbiological parameters. Three formulations of light cream cheese spread were developed: without phytosterols (LGC), with 3 g of phytosterols/100 g (LGC3) and with 6 g of phytosterols/100 g (LGC6). Traditional cream cheese spread (TGC) was used as a control. The light formulations showed high protein content (15.88 g/100 g) and reduced fat content (12.00 g/100 g), which contributed to the caloric reduction of the products when compared to (TGC). The apparent viscosity at 10 s-1 (201.8-224.8 Pa s) and adhesiveness (12.80-13.20 mJ) parameters in LGC3 and LGC6 differed significantly from TGC product. All spreads were in accordance with the microbiological standards recommended by Brazilian legislation during the 90 days of monitoring. The results indicate that the light cream cheese spread from goat milk can be used as matrix for introducing phytosterols. Therefore, the light cream cheese spread from goat milk with the addition of 6 g of phytosterols/100 g presented characteristics of a functional food with potential for LDL cholesterol reduction.

关键词： Fine tea powder   Sensory attributes   Physicochemical properties   LASSO fitting   Principal component analysis  

摘要： The sensory quality of matcha is a pivotal factor in determining consumer acceptance. However, the human sensory panel test is difficult to popularize by virtue of professional requirements and inability to evaluate large samples. The analysis showed that physicochemical indicators of matcha were significantly related to sensory quality. Hence, principal component analysis (PCA) based on selected key physicochemical indicators was proposed to evaluate the sensory quality of matcha in this research. The eight key indicators were selected from twenty-four physicochemical indicators based on least absolute shrinkage and selection operator (LASSO) for the establishment of the PCA comprehensive evaluation model. The results demonstrated that the PCA comprehensive evaluation model achieved superior performance, with -0.895 rc (correlation coefficient in calibration set) and -0.883 rp (correlation coefficient in prediction set) for overall sensory quality. This work demonstrated that LASSO-PCA comprehensive evaluation as an objective protocol has great potential in predicting matcha sensory quality.

关键词： Future food   Meat substitute   Rice protein isolate   Soy protein isolate   Twin-screw extruder  

摘要： Currently, active research is being focused on the development of future foods that can replace conventional meat. Meat analogues have been drawing considerable attention as possible alternatives to meat. In this study, the possibility of using rice protein isolate (RPI) to create meat analogues was investigated. Therefore, novel textured rice proteins (TRPs), which are meat analogues, were prepared from RPI and soy protein isolate (SPI) as primary raw materials by blending RPI and SPI at ratios approximately 25:75, 50:50, 75:25, and 100:0 (w/w). Meanwhile, corn starch and wheat gluten, minor ingredients, were added at 29% and 13% (w/w) of the total weight of the all ingredients, respectively, in all samples. Low-moisture extrusion cooking process using a twinscrew extruder was used for manufacturing TRPs. An analysis of physico-chemical characteristics showed that RPI replacement decreased specific mechanical energy, porosity, and water absorption capacity of the meat analogues. However, meat analogues made from combinations of RPI and SPI had better nutritional quality than commercial one, whose main ingredient is SPI without the addition of RPI and displayed desirable results pertaining to their soluble matter content during rehydration. Consequently, RPI exhibits potential to partially replace SPI in the manufacture of meat analogues.

关键词： 物理化学   能量守恒与转化   热与功的转换   简单碰撞理论   卡诺循环   物理化学实验   马克思主义的哲学思想  

摘要： 在物理化学的课堂上讲授热力学基本原理及基本知识时,可以体现马克思主义的哲学思想,如:实践是检验真理的唯一标准、真理的绝对性和相对性、量变和质变规律、矛盾的普遍性和特殊性等。运用马克思主义的哲学思想将物理化学的基本原理讲深讲透,使学生在物理化学课堂学习过程中,不仅可以掌握物理化学课程的基本原理和基础知识,而且可以运用马克思主义的世界观和方法论掌握物理化学的科学原理和科学思想。

关键词： Piperidine derivative   structure-properties relation   physicochemical properties   computation chemistry   passive optical limiter   third-order nonlinear optical properties  

摘要： The computation and experimental results on structural, mechanical, thermal, linear, and third order nonlinear optical properties of an organic material 4-methyl-N-((1-(4-methylbenzoyl)piperidin-4-yl)methyl)-benzamide (1) for an efficient optical limiting application with easy preparation and decent performance are presented. Its response to single-crystal x-ray diffraction allowed to investigate the molecular structure of 1, which is optimized using computational density functional theory at the B3LYP/6-311G** level. Calculated frontier molecular orbitals and Mulliken charge are served to realize the intramolecular charge transfer in 1 and its electronegative nature responsible for optical nonlinearity. Hirshfeld analysis investigated the structural property and the magnitude of interatomic and molecular interactions to help understand structure-property relation. The FTIR and NMR spectroscopic study further confirmed the formation of 1 and the vibrational states of its functional group. The title crystal showed acceptable thermal (stable up to 130 degrees C) and mechanical (stable up to 50 grams of applied load) stability, which is optimal for laser device applications. With an optical bandgap of 4.32 eV, the title material possesses much less linear optical absorption across the visible region of the electromagnetic spectrum. The nonlinear optical absorption (beta), nonlinear refractive index (n (2)) and third-order nonlinear optical susceptibility (chi ((3))) values are measured as (0.0139 +/- 0.001) x 10(-4) cmW(-1), (1.49 +/- 0.05) x 10(-10) cm(2)W(-1) and (4.2 +/- 0.3) x 10(-8) esu respectively shows that the title molecule is third-order nonlinear optical active. The onset optical limiting threshold value is determined as (7.092 +/- 0.01)x10(3) Wcm(-2) for 532 nm, continuous-wave laser irradiation indicating that the title material is a good candidate for the optical limiting application.