Comparative Analysis of the Tannin and Gallic Acid Contents of Chinese Gallnut and the Influencing Factors

LV Xiang; YANG Zi-xiang; SHAO Shu-xia; LI Yang

The contents of tannin and gallic acid of 14 Chinese gallnut samples from different producing areas were determined by hide powder method and high performance liquid chromatography, respectively. The results showed that the tannin contents ranged from 61.59% to 68.30% and the mean content was 64.49%. Gallic acid content ranged from 70.35% to 77.61% and the mean content was 73.92%. The wall thickness of galls ranged from 1.55 to 2.01 mm, and density ranged from 0.16 to 0.33 g·mL-1. Correlation analysis indicated that the tannin contents had a positive significant correlation with the gallic acid contents, but the tannin and gallic acid contents had no significant correlations with the wall thickness and density, respectively. Meanwhile, both of the tannin and gallic acid content had a negative significant correlation with mean month temperatures of April to August and had no significant correlations with the relative humidity, precipitation, and sunshine duration respectively. It is suggested that temperature was an important factor affecting the quality of Chinese gallnut. The cluster analysis showed that 14 Chinese gallnut samples could be divided into 3 quality groups which stood for excellent, moderate and common categories.

1. Research Institute of Resource Insects, Chinese Academy of Forestry

Received Date: 2010-08-19

Abstract: The contents of tannin and gallic acid of 14 Chinese gallnut samples from different producing areas were determined by hide powder method and high performance liquid chromatography, respectively. The results showed that the tannin contents ranged from 61.59% to 68.30% and the mean content was 64.49%. Gallic acid content ranged from 70.35% to 77.61% and the mean content was 73.92%. The wall thickness of galls ranged from 1.55 to 2.01 mm, and density ranged from 0.16 to 0.33 g·mL-1. Correlation analysis indicated that the tannin contents had a positive significant correlation with the gallic acid contents, but the tannin and gallic acid contents had no significant correlations with the wall thickness and density, respectively. Meanwhile, both of the tannin and gallic acid content had a negative significant correlation with mean month temperatures of April to August and had no significant correlations with the relative humidity, precipitation, and sunshine duration respectively. It is suggested that temperature was an important factor affecting the quality of Chinese gallnut. The cluster analysis showed that 14 Chinese gallnut samples could be divided into 3 quality groups which stood for excellent, moderate and common categories.

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Reference (17)

[1]	张广学,钟铁森. 中国经济昆虫志,第25册,同翅目,蚜虫类(一)[M]. 北京:科学出版社,1983:78-80
[2]	张宗和. 五倍子加工及利用[M]. 北京:中国林业出版社,1987:1-301
[3]	唐觉,蔡邦华. 贵州湄潭五倍子的研究[J]. 昆虫学报,1957,7(1):131-140
[4]	张广学,乔格侠,钟铁森,等.中国动物志(昆虫纲14卷,同翅目,纩蚜科,瘿绵蚜科) [M].北京:科学出版社,1999:256-272
[5]	邱明生,赵志模.角倍蚜秋季迁飞和生殖能力的研究[J].西南农业大学学报,1995,17(1):39-41
[6]	赖永祺. 五倍子丰产技术[M]. 北京:中国林业出版社,1987:1-19
[7]	李志国,杨文云,夏定久.中国五倍子研究现状[J].林业科学研究,2003,16(6):760-767
[8]	韩双,席先蓉,黄平. 贵州不同地区五倍子中没食子酸含量测定与品质评价[J].中国中医药信息杂志,2009,16(5):52-53
[9]	张燕平,郑兴峰,杨力真,等. 角倍及盐肤木叶片形态构造解剖分析[J]. 南京林业大学学报,2001,25(6):6-11
[10]	包松莲,李志国,张建云.苏木科云实属植物塔拉单宁分析方法研究[J].西南农业学报,2007,20(4):782-786
[11]	夏定久,袁佩华,徐春贵,等.国家标准局.中华人民共和国国家标准-五倍子,GB5848-86[M].北京:中国标准出版社,1986
[12]	国家药典委员会.中华人民共和国药典(一部)[M].北京:化学工业出版社,2005
[13]	Moran N A.A 48-million-year-old aphid-host plant association and complex life cycle: biogeographic evidence[J].Science,1989,245:173-175
[14]	唐觉.五倍子及其繁殖增产的途径[J].昆虫学报,1976,19(3):282-296
[15]	邱明生,赵志模,徐学勤,等.角倍蚜与寄主间营养关系的研究[J].西南农业大学学报,1996,18(6):613-618
[16]	张燕平,赖永棋,李坚强,等.角倍蚜虫袋挂放方法与结倍效果[J].林业科学研究,1996,9(4):388-393
[17]	王家玉.五倍子的人工培育技术[J].生物学通报,1993,28(9):44-45

Comparative Analysis of the Tannin and Gallic Acid Contents of Chinese Gallnut and the Influencing Factors

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