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关键词： 食品分析与检测   食品质量与安全   实验教学   教学方法   教学质量   应用型   教育  

摘要： 《食品分析与检测》是食品质量与安全专业一门实践应用性很强的专业必修课程,对大学生未来职业起重要作用。近年来,消费者对食品质量与安全的关注度逐渐增强,促使企业对食品分析检测人才需求量不断增加。在工程认证的背景下与社会发展的推动之中,食品分析与检测课程面临着前所未有的挑战与机遇,应用型医科大学为培养应用型食品化学与分析检测专业人才,对“食品分析”实验课程改革已迫在眉睫。针对本门课程实验教学中存在的实际问题,改进教学方法,最大限度地激发学生对实验课程的学习积极性,培养学生科研能力和实际动手能力,提高教学质量,培养具有创新能力、实践动手能力、符合企业需求的高素质应用型人才。

关键词： 生物化学   实验教学   实验报告   混合式教学平台   智慧校园  

摘要： 书写生物化学实验报告是实验教学过程中的一个重要环节,也是衡量实验教学效果的一个重要依据。通过实践摸索发现,通过混合式教学平台在线提交生物化学实验报告给实验教学带来很大的便利,增加了师生之间的沟通交流,减轻了教师的工作负担,提高了生物化学实验课的教学效率和质量。

关键词： 食品营养学   课程思政元素融合   课程思政目标   达成路径  

摘要： "食品营养学"课程思政将打破思政课程"孤军作战"的态势,充分利用课程本身思政元素丰富的优势,弥补思政课程理论性较强、吸引力不足的缺陷,增强课堂亲和力和感染力。"食品营养学"所蕴含的丰富思政元素为课程思政提供了良好的可行性,"食品营养学"课程思政势在必行。课程思政元素在融合过程中应尊重课程本身的属性和规律,讲究融合的技巧和策略,从而达到较好的思政效果。

关键词： 课程思政   生物化学   课堂教学  

摘要： 生物化学作为生命科学、食品和农学等相关专业的基础理论课程,对人才专业知识培养至关重要。为了实现全课程育人的目标,本文以生物化学课程为例,对生物化学课程思政的必要性、思政元素、教学方法及教学效果评价进行探讨,在提升学生专业知识的同时提高了思想政治素养,培养学生正确的价值观。

关键词： 食品安全事故   生物性污染   食品安全性   技术伦理   现代社会环境   伦理问题   食品安全研究   伦理思想  

摘要： 科技改变了社会、改变了人类的生活,现代社会环境下科学技术的快速发展显著提高了人类的生活质量。与此同时,人们还需要清晰意识到科技是"双刃剑",在造福人类的同时也带来了一系列由于不正确使用技术导致的技术伦理问题。其中,频繁在我国出现的食品安全事故就是不恰当地使用技术的伦理问题,这就《食品安全学》是针对食品安全作深入研究的著作,全书分为十个章节,分别为食品安全基础理论、食品安全发展现状、食品安全的生物性污染、加工食品安全性、食物中毒与预防等。全书详细地阐述了食品从农田到消费者餐桌上可能出现的食品安全问题,并提出了相应的预防措施。

关键词： 生物化学检验   肾上腺素   利福平   影响  

摘要： 目的探讨不同浓度利福平及肾上腺素对常用临床生物化学检验的影响。方法选取2018年5月1日至2020年5月1日在该院自愿参加观察患者共126例,服用利福平与肾上腺素各63例,以不损害患者身体健康为前提进行用药,记录服药浓度,评价常用生物化学检验结果。结果不同利福平浓度可对血肌酐、总胆红素、直接胆红素造成负向干扰,而对黄素单核苷酸造成正向干扰;不同肾上腺素浓度可对血肌酐、高密度脂蛋白、甘油三酯、总胆固醇造成负向干扰,而对黄素单核苷酸造成正向干扰。结论在临床生物化学检验中,不同浓度利福平及肾上腺素可对检验结果造成影响,需综合考虑检验过程中所遇到的各项问题,尽可能减少误差,确保检验结果的准确性。

关键词： 食品分析   检测过程   现代仪器   检测技术  

摘要： 我国社会发展进程的不断推进和国民经济水平的提升,带动了国民生活水平的进步,越来越多的人开始关注食品安全问题,食品中可能存在的毒素、农药、添加剂等有害物质都会对食用者的身体健康产生影响,因此在加大食品安全方面监督的同时,还应当提升食品安全检测技术设备的运用。本文在研究中分析了食品安全检测的特点,从不同技术角度介绍了现代仪器的使用策略,以期促进食品安全检测工作的发展,保障国民食品的安全和健康。

关键词： 生物化学与分子生物学实验   在线学习平台   辅助实验教学模式  

摘要： 随着"互联网+"教育的推进,医学生物化学与分子生物学实验课改革势在必行,在线学习平台是基于此背景开发的混合式数字化教学平台。本研究将在线学习平台应用于生物化学与分子生物学实验教学中,构建实验课翻转课堂,通过签到、资料推送、预习作业及实验报告等4个课堂活动研究了辅助实验教学模式,得到了较好的教学效果。

关键词： Gadoteric acid   Gadobutrol   Behavior and memory functions   MRI-ROI   HVA   ChAT  

摘要： Gadolinium-based contrast agents (GBCAs) exert effects in different regions of the brain; however, studies on this topic are mostly focused on radiological outcomes of GBCA exposure. This paper is a preliminary attempt to identify whether there are changes in behavioral, cognitive, histopathological, radiological and biochemical characteristics with repeated exposure to gadobutrol and gadoteric acid. The effects of GBCAs were tested with the assessment of 4 groups -each comprised of 6 rats [controls, gadobutrol, gadoteric acid (Doteram), and gadoteric acid (Clariscan)]. Respective treatments of 0.1 ml/kg were administered for 3 weeks, followed by a recovery period of 1 week without any treatment. At the end of this regimen, behavioral tests (open field and passive learning test) were performed. Additionally, histopathological analysis of the hippocampal CA1 and CA3 regions (GFAP measurement and total neuron count), biochemical measurements [TNF-a, Malondialdehyde (MDA), Superoxide dismutase (SOD), homovalinic acid (HVA) and choline acetyl transferase (ChAT) levels], and radiological findings (MRI-region of interest) were carried out in each group. There was a significant impairment in all groups that had received gadolinium in open field and passive avoidance learning tests. Oxidative stress and inflammation markers were significantly elevated in all gadolinium groups. Additionally, increased hippocampal gliosis and decreased MRI-ROIs were observed in rats exposed to gadolinium. Chronic gadoteric acid and gadobutrol exposure causes hippocampal gliosis and elevates oxidative stress and inflammation in rats. Radiological outcomes are also consistent with these findings. Long-term studies might be required to conclude whether gadolinium deposition in the brain causes subtle neurological deficits.

关键词： Flavonoids   Gene expression   Oryza sativaL   Pigmented rice   ATHEROSCLEROTIC PLAQUE-FORMATION   MYB TRANSCRIPTION FACTORS   MILL WASTE-WATER   ANTHOCYANIN ACCUMULATION   ANTIOXIDANT CAPACITY   EMERGING TECHNOLOGIES   PHENOLIC-COMPOUNDS   BLACK   LIGHT   COLOR  

摘要： Ever since the flavonoids and other antioxidants in rice were demonstrated with immense health benefits, much interest has been diverted to study the native indigenous rice landraces. In the present investigation, three pigmented rare Indian rice landraces and two non-pigmented rice varieties were analyzed for their phytoconstituents like total phenolic content (TPC), total flavonoid content (TFC), total anthocyanin content and antioxidant potential using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity. The phytochemical profile was compared between seed, seedling, stem, leaf and root tissues of the different varieties. Pigmented rice cultivars demonstrated higher levels of bioactive compounds as compared to the non-pigmented cultivars exhibiting a strong correlation between the antioxidant activity of the grain and their phenolic and flavonoid content. Among the five different rice studied, black navara was found to be superior in terms of its phytochemical composition. Further, the expression levels of flavonoid genes among pigmented and non-pigmented rice was studied. Higher gene expression profiles were observed in the 8 flavonoid genes studied in pigmented rice varieties as compared to non-pigmented varieties. The colorlessness of non-pigmented rice and its lower levels of phytoconstituents correlated with the low transcript levels of flavonoid genes recorded in them. This study provides a basis for understanding the health-promoting properties of pigmented rice over non-pigmented rice at the biochemical and molecular levels.