摘要
为探索从对虾加工废弃物中回收甲壳素的绿色工艺,本文以离子液体1-乙基-3-甲基咪唑醋酸盐([C_2mim]Ac)为溶剂,系统考察了溶解时间、溶解温度、固-液比3个因素对虾壳的溶解度、回收率以及再生后的组分、表观形貌和晶体结构的影响规律。结果表明,固-液比为1∶20 w/w、100℃下加热1 h后,虾壳溶解度最高,为15.30%。与未处理的虾壳相比,经过[C_2mim]Ac溶解再生后的样品表面多孔、粗糙或扭曲变形,而且结晶结构被破坏,蛋白质和矿物质脱除率可分别达到67.13%和42.84%。当温度超过120℃,溶解时间超过2 h时,不利于[C_2mim]Ac对虾壳的溶解。
To seek green processes of chitin extracting from shrimp processing waste,ionic liquid (IL)1-ethyl -3- methylimidazolium acetate([C2mim]Ac)was used as the solvent in this study,the effects of dissolution time,dissolution temperature,and solid-solvent ratio on the solubility,recovery rate,and the influence of the composition,apparent morphology and crystal structure after regeneration were investigated.The results showed that,when the solid-liquid ratio was 1:20w/w, the solubility of shrimp shells in[C2mim]Ac could reach 15.30% after heating 1h.Compared with the untreated shrimp shells, the surface of the sample after dissolution and regeneration by [C=mira ]Ac was porous,rough or distorted,and the crystalline structure was destroyed,and the deproteinization and demineralization could reach 67.13% and 42.84%,respectively.When the temperature exceeded 120℃ and the time was more than 2h,the capacity of [C2mim ]Ac to dissolve shrimp shells dropped significantly.
作者
高静
何亚敏
陈炜锋
李艳
吉宏武
刘书成
郝记明
GAO Jing;HE ya-min;CHEN Wei-feng;LI Yan;JI Hong-wu;LIU Shu-cheng;HAO Ji-ming(College of.Food Science and Technology,Guangdong Ocean University,Zhanjiang 524088,China;Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution,Zhanjiang 524088,China;Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety,Zhanjiang 524088,China)
出处
《食品工业科技》
CAS
CSCD
北大核心
2018年第24期29-34,共6页
Science and Technology of Food Industry
基金
国家自然科学基金项目(21706040)
现代农业产业技术体系专项资金资助
广东普通高等学校水产品高值化加工与利用创新团队(GDOU2016030503)
广东省创新强校项目(2015KQNCX061)
关键词
虾壳
离子液体
溶解
组分
结构
shrimp shells
ionic liquid
dissolution
component
structure
