食品科学 ›› 2010, Vol. 31 ›› Issue (12): 71-75.doi: 10.7506/spkx1002-6630-201012016

• 工艺技术 • 上一篇    下一篇

响应面法优化竹屑碱法提取酚酸工艺研究

胡铮瑢1,2,刘玉环1,2,3,阮榕生1,2,*,彭 红1,2,张锦胜1,2   

  1. 1.南昌大学 食品科学与工程国家重点实验室
    2.南昌大学 生物质转化教育部工程研究中心 3.南昌大学 江西省生物质转化工程技术研究中心
  • 收稿日期:2009-09-23 修回日期:2010-02-03 出版日期:2010-06-15 发布日期:2010-12-29
  • 通讯作者: 阮榕生 E-mail:nhgsypszdmj@yahoo.com.cn
  • 基金资助:

    江西省教育厅自然科学基金项目(S00478);江西省自然科学基金项目(2008GZH0047);
    国家自然科学基金项目(30960304C040302)

Optimization of Some Process Conditions for the Alkline Extraction of Phenolic Acids from Bamboo Residues by Response Surface Methodology

HU Zheng-rong1,2,LIU Yu-huan1,2,3, RUAN Roger1,2,*,PENG Hong1,2,ZHANG Jin-sheng1,2   

  1. 1. State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China;2. Engineering
    Research Center for Biomass Conversion, Minister of Education, Nanchang University, Nanchang 330047, China;3. Engineering
    and Technology Research Center for Biomass Conversion of Jiangxi Province, Nanchang University, Nanchang 330047, China
  • Received:2009-09-23 Revised:2010-02-03 Online:2010-06-15 Published:2010-12-29
  • Contact: RUAN Roger E-mail:nhgsypszdmj@yahoo.com.cn

摘要:

为提取竹屑中的酚酸,采用Box-Behnken 设计原理和响应面分析法,以水解温度、水解时间以及NaOH溶液质量分数为自变量,以提取率为响应值,研究各自变量及其交互作用对碱法提取竹屑中酚酸提取率的影响。结果表明:最佳工艺条件下,即温度75.5℃、时间190min、NaOH 溶液质量分数1.65% 时,以阿魏酸为标准,紫外分光光度计法测定阿魏酸得率为29.2503mg/g,与预测的理论值29.9566mg/g 极为接近。碱水解体系中添加抗氧化剂能减少阿魏酸的氧化破坏。实验证明采用响应面法优化碱水解提取酚酸工艺可行。

关键词: 竹屑, 酚酸, 阿魏酸, 提取, 响应面分析

Abstract:

This study aimed at developing an optimal process for the alkine extraction of phenolic acids from bamboo residues. To investigate the effects of hydrolysis temperature, length of hydrolysis time and NaOH concentration as well as their pairwise interactions on the yield of phenolic acids from bamboo residues, the use of Box-Behnken design combined with response surface methodology was evaluated. The results showed that the optimum values of the above process conditions were determined to be: NaOH concentration 1.65% for a hydrolysis duration of 190 min at 75.5 ℃. Under such conditions, the yield of ferulic acid belonging to the group of phenolic acids was determined by means of UV spectroscopy (at 320 nm) to be 29.2503mg/g, very consistent with the theoretical prediction of 29.9566 mg/g. Added antioxidants to the alkine hydrolysis system was able to reduce loss of ferulic acid caused by oxidation. In conclusion, the developed process is applicable.

Key words: bamboo residues, phenolic acid, ferulic acid, extraction, response surface methodology

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