笋头纳米纤维素晶体的制备及理化性质分析  

Analysis on the Preparation of Nanocrystalline Cellulose in Bamboo Shoots and Its Physical and Chemical Properties

作　　者：林彤[1] 陈灿辉[1] 李舒婷 李正一 郑亚凤[1] LIN Tong;CHEN Can-hui;LI Shu-ting;LI Zheng-yi;ZHENG Ya-feng(College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China)

机构地区：[1]福建农林大学食品科学学院,福建福州350002

出　　处：《福建农业科技》2020年第3期13-16,共4页Fujian Agricultural Science and Technology

基　　金：国家自然科学基金青年科学基金项目(31901724)。

摘　　要：为促进笋头的高值化利用,利用富含纤维素的竹笋笋头进行纳米纤维素晶体(cellulose nanocrystal,CNC)的制备。以福建省绿竹笋笋头为原料,通过粉碎、前处理和硫酸水解法进行笋头纳米纤维素晶体的制备,并研究其持水力、持油力和膨胀力等理化性质。结果表明:笋头是制备纳米纤维素晶体的适宜原料,经过硫酸水解后笋头纳米纤维素晶体的理化性质得到显著改良。通过硫酸水解法制备的笋头纳米纤维素晶体的得率为49.54%,粒径为91.87 nm;相对于笋头粗纤维,笋头纳米纤维素晶体的持水力、持油力和膨胀力分别提高了99.54%、29.80%和81.15%。In order to promote the high-value utilization of bamboo shoots,the cellulose nanocrystal(CNC)was prepared by bamboo shoots rich in cellulose.By taking the green bamboo shoots in Fujian Province as the raw materials,the cellulose nanocrystal of bamboo shoots was prepared by means of crushing,pretreatment and sulphuric acid hydrolysis method.Then,the physical and chemical properties such as water-holding power,oil-holding power and expansive force were studied.The results showed that the bamboo shoot was an appropriate raw material for the preparation of cellulose nanocrystal.After the sulfuric acid hydrolysis,the physicochemical properties of cellulose nanocrystal in bamboo shoots were improved significantly.The yield of the cellulose nanocrystal in bamboo shoots prepared by the sulfuric acid hydrolysis method was 49.54%and the particle size was 91.87 nm.Compared with the crude fibre of bamboo shoots,the water-holding power,oil-holding power and expansive force of cellulose nanocrystal in bamboo shoots were increased by 99.54%,29.80%and 81.15%respectively.

关 键 词：竹笋 纳米纤维素晶体 酸解法 理化特性 

分 类 号：TS209[轻工技术与工程—食品科学]