摘要
以莲子钻芯粉为原料,采用碱浸法提取淀粉,并与玉米淀粉(CS)、马铃薯淀粉(PS)和大米淀粉(RS)为参照,开展了莲子钻芯粉淀粉(LCPS)的理化性质和成膜特性研究。结果表明,LCPS直链淀粉质量分数最高(34.12%),透明度较低(8.67%);其糊化最终黏度和糊化终止温度显著高于CS、PS和RS(P<0.05),分别为6852 cP和86.1℃;LCPS颗粒平均粒径为13.77μm,大小分布较CS、PS和RS更均匀,大多数呈椭圆形,少数呈圆形,属于A型晶体结构;LCPS具有较优的成膜特性,其膜的抗张强度(6.60 MPa)和水蒸气透过性[1.80×10^(-10) g/(m·s·Pa)]显著高于CS、PS和RS(P<0.05),透光率较低(53.54%)。本研究为LCPS的开发利用及其在生物基可降解膜研发中的潜在作用提供了理论参考。
In the present study,the starch in lotus seed drill core powder was extracted by alkali leaching.The physicochemical properties and film-forming characteristics of lotus seed core powder starch(LCPS)were analyzed and compared with corn starch(CS),potato starch(PS)and rice starch(RS).The results showed that the amylose mass fraction of LCPS was the highest(34.12%)and the transparency was lower(8.67%).Also,the final gelatinization viscosity and gelatinization termination temperature were significantly higher than CS,PS and RS(6852 cP and 86.1℃,respectively).The particle size distribution was more uniform than CS,PS and RS,with an average particle size of 13.77μm.Most of the particles were oval and a few were round,belonging to A-type crystal structure.In addition,the LCPS had better film-forming properties.The tensile strength(6.60 MPa)and water vapor permeability[1.80×10-10 g/(m·s·Pa)]were significantly higher than CS,PS and RS and low light transmittance(53.54%).As a conclusion,this present study might provide a theoretical reference for the development and utilization of LCPS and its potential role in the development of biodegradable films.
作者
胡志强
张瑜
柏妮
王建辉
李昌珠
肖志红
刘冬敏
陈启杰
牟鸣薇
Hu Zhiqiang;Zhang Yu;Bo Ni;Wang Jianhui;Li Changzhu;Xiao Zhihong;Liu Dongmin;Chen Qijie;Mu Mingwei(School of Food Science and Bioengineering,Changsha University of Science and Technology,Changsha 410114;State Key Laboratory of Utilization of Woody Oil Resources,Hunan Academy of Forestry,Changsha 410018)
出处
《中国粮油学报》
CAS
CSCD
北大核心
2023年第3期94-100,共7页
Journal of the Chinese Cereals and Oils Association
基金
湖南省自然科学基金杰出青年科学基金项目(2021JJ10007)
湖南省科技重点研发项目(2021NK2015、2019SK2121)
湖南省科技人才托举工程中青年学者培养计划项目(2019TJ-Q01)
长沙市科技创新创业领军人才项目(kh1902130)
湖南佳元禄味型创新创业团队项目(2019-22)
湖南省重点研发项目(2020NK2027)。
关键词
莲子钻芯粉
淀粉
理化性质
成膜特性
lotus seed drill core powder
starch
physicochemical properties
film-forming characteristics
作者简介
第一作者:胡志强,男,1997出生,硕士,食品生物技术,2334684358@qq.com;通信作者:王建辉,男,1980出生,教授,淡水资源食品加工与菜肴工业化,wangjh0909@163.com。
