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生物催化剂脱除食品中SO2的初探

发表时间:2009-08-31  浏览量:1515  下载量:561
全部作者: 王向丽,黄国平,温其标
作者单位: 华南理工大学轻工与食品学院;广东食品药品职业学院食品科学系
摘 要: 主要研究从菠菜中提取叶绿体,并将其用于亚硫酸盐的脱除实验。实验中采用两步差速离心方法提取叶绿体,获得的叶绿体提取率、得率分别为19.4%和 5.7%. 利用所提叶绿体催化氧化NaHSO3溶液,经单因素实验分析,叶绿体使用液用量为0.1 g/L,pH8.0,反应2 h,最终NaHSO3中SO2的清除率达到了95.1%;光照和均匀振荡均能促进NaHSO3中SO2-3的氧化。
关 键 词: 食品生物化学;生物催化剂;叶绿体;亚硫酸盐;脱除
Title: Primary study of sulfur dioxide residue elimination from food by a biocatalyst
Author: WANG Xiangli, HUANG Guoping, WEN Qibiao
Organization: College of Light Industry and Food Sciences, South China University of Technology;Food Science Department, Guangdong Food and Drug Vocational College
Abstract: Chloroplast separated from spinach in this study was applied to remove sulfite from sodium bisulfate. Two-step centrifugation method for extracting chloroplast from spinach was used. The extraction rate and yield reached 19.4% and 5.7% respectively. The extracted chloroplast was then applied in the oxidation of NaHSO3 solution. A sufficiently high rate (95.1%) of sulfite elimination was observed with 0.1 g/L chloroplast, at pH8.0, within 2 hours. An oxidation prompting role of sun light irradiation and consistant agitation during the reaction was also observed.
Key words: food biochemistry; biocatalyst; chloroplast; sulfites; removal
发表期数: 2009年8月第16期
引用格式: 王向丽,黄国平,温其标. 生物催化剂脱除食品中SO2的初探[J]. 中国科技论文在线精品论文,2009,2(16):1743-1747.
 
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