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Position: Home > Articles > Ultrasonic-Assisted Extraction and Properties of Protein from Enteromorpha clathrata FOOD SCIENCE 2013,34 (18) 12-17

条浒苔蛋白质的超声波辅助提取及其性质

作  者:
盘赛昆;朱强;王淑军;王艳;姚东瑞
单  位:
淮海工学院食品工程学院;江苏省海洋生物技术重点建设实验室
关键词:
条浒苔;蛋白质;超声波;均匀设计;功能性质
摘  要:
为了开发利用绿潮藻类浒苔中含量丰富的蛋白质,以蛋白质提取率为指标,首先通过单因素试验确定提取条件,然后采用均匀设计优化超声波辅助提取工艺条件,并测定条浒苔蛋白质的等电点、起泡性、乳化性、吸油性、溶解性等性质。结果表明:条浒苔蛋白质的提取条件为料液比1:20(g/mL)、pH11.0、温度60℃、时间5h;超声波辅助提取条件为总时间50min、超声时间2.7s、间隙时间11.0s、总体积50.8mL、超声功率627.0W。条浒苔蛋白质的提取工艺为经超声波处理后再碱提5h,在此条件下蛋白质的提取率为41.64%~48.70%。条浒苔蛋白质的等电点pI 3.0,在pH7.0时起泡性最好,起泡性随着蛋白质质量浓度增加而增强,泡沫稳定性在pH3.0和质量浓度2mg/mL时最好,乳化性在4mg/mL时最好,乳化稳定性在2mg/mL时最好,条浒苔蛋白质的吸油性为131.6%,60℃时溶解性最大。
译  名:
Ultrasonic-Assisted Extraction and Properties of Protein from Enteromorpha clathrata
作  者:
PAN Sai-kun;ZHU Qiang;WANG Shu-jun;WANG Yan;YAO Dong-rui;Jiangsu Key Laboratory of Marine Biotechnology;School of Food Engineering,Huaihai Institute of Technology;Institute of Botany Jiangsu Province and Chinese Academy of Sciences;
关键词:
Enteromorpha clathrata;;protein;;ultrasonic-assisted extraction;;uniform design;;functional property
摘  要:
In order to utilize protein in Enteromorpha clathrata,a type of green tide alga,the extraction of protein from E.clathrata was explored using uniform design and the properties of the protein were evaluated.Results indicated that the optimal water extraction conditions were solid-liquid ratio of 1:20(g/mL),pH 11.0,extraction temperature of 60 ℃,and extraction time of 5 h.The optimal ultrasonic-assisted extraction conditions were total treatment time of 50 min,ultrasonic treatment time of 2.7 s,interval time of 11.0 s,total volume of 50.8 mL,and ultrasonic treatment output power of 627.0 W.Under these conditions,the extraction rate of protein was 41.64%–48.70%.The pI of the extracted protein was 3.0.The foaming capacity was the highest at pH 7.0.The foaming stability remained the highest level at pH 3.0 and 2 mg/mL.Emulsifying capacity and emulsion stability reached the highest at 4 mg/mL and 2 mg/mL,respectively.The oil-absorbing capability of the protein was 131.6%.The maximum solubility was measured at 60 ℃.

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