姹紫嫣红,与花青素的浪漫邂逅  

A Blaze of Colour——Romantic Encounters with Anthocyanin

作　　者：郭笑汝 于小满 张伊径 卢忠林[1] Xiaoru Guo;Xiaoman Yu;Yijing Zhang;Zhonglin Lu(College of Chemistry,Beijing Normal University,Beijing 100875,China)

机构地区：[1]北京师范大学化学学院,北京100875

出　　处：《大学化学》2023年第4期124-133,共10页University Chemistry

摘　　要：花青素是一类广泛存在于植物中的天然色素,色泽绚丽多彩,并具有多种优良的生理功能。本科普实验采取居家和实验室两种方法提取花青素,使之与不同pH的水溶液和碘伏发生作用,设计出“四季更迭”“一带一路”“花青素写字”等多种展示方案及“Freestyle”创意绘画活动。在展示过程中介绍花青素的化学结构、从红到蓝再到黄的颜色变化和抗氧化性原理,传递化学之美与化学之趣,呈现思政元素,潜移默化。本科普实验原创可爱紫甘蓝形象及趣味动画,生动有趣地介绍花青素的多种功能及应用,更易于接受;并结合生活实际,指出生活中常见的花青素使用误区,帮助社会大众更好地理解和使用花青素。整个科普实验将科学与艺术,知识和育人巧妙结合,同时绿色安全,具有很强的居家可行性和可推广性。Anthocyanin is a kind of natural pigments widely found in plants.It is colorful and has many physiologic functions.In this science popularization experiment,we have extracted anthocyanin from red cabbage both at home and in the lab.By mixing the extracted anthocyanin with aqueous solutions of different pH and iodophor,we have designed three schemes including“The Change of Four Seasons”,“Belt and Road”and“Write with Anthocyanin”respectively,to introduce the structure of anthocyanin,the colour changes of anthocyanin at different pH,and the principle of oxidation resistance.We have also designed a drawing activity called“Freestyle”,in which the audience at different levels can take part in person.From the above mentioned,not only are the beauty and magic of chemistry shown,but also ideological education is concluded.In addition,we have created lovely purple cabbage images and animation to show the functions and applications of anthocyanin in a vivid and interesting way.We have also indicated some common misunderstandings about anthocyanin in daily life and tried to help people use anthocyanin in the proper way.In a word,this science popularization experiment combines science and art,knowledge and education ingeniously.It is also easy and safe enough to be performed at home.

关 键 词：花青素 酸碱指示剂 抗氧化性 生活化学 课程思政 

分 类 号：G64[文化科学—高等教育学] O6[文化科学—教育学]