湿地松松针中鞣质的提取与分离工艺研究

›› 2010, Vol. 30 ›› Issue (5): 99-102.

• 研究报告 • Previous Articles Next Articles

Study on Extraction and Isolation of Tannin from Pine Needles of Pinus elliottii Engelm.

LI Sen-lin¹, ZHANG Jian-bin¹, ZHANG Zheng-fu², WEI Xiong-hui²

1. Chemical Engineering College, Inner Mongolia University of Technology, Hohhot 010051, China;2. College of Chemistry and Molecular Engineering, Peking University, Beijing 100190, China

Received:2010-01-07 Revised:1900-01-01 Online:2010-10-30 Published:2010-10-30

Abstract

Abstract: Process of extracting tannin from pine needles of Pinus elliottii Engelm. was studied. Five main factors were studied on the yield of pine needle extract and tannin. By single factor experiments,the optimal parameters were confirmed as follows: extracting time 5 h at 120℃ with ratio of liquid to solid 14:1(mL:g), and pH value 10. The yield of extract was 17.69% and tannin was 29.17% in the extract. Gallic acid and other compositions can be well separated by HPLC technique. The experiment proved that extracts may contain hydrolysable tannin or complex tannins.

Key words: Pinus elliottii Engelm., pine needles, tannin, gallic acid, optimization

CLC Number:

LI Sen-lin;ZHANG Jian-bin;ZHANG Zheng-fu;WEI Xiong-hui. Study on Extraction and Isolation of Tannin from Pine Needles of Pinus elliottii Engelm.[J]. , 2010, 30(5): 99-102.

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Study on Extraction and Isolation of Tannin from Pine Needles of Pinus elliottii Engelm.

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