| 引用本文: | 刘正实1 , 刘成伦1 , 殷钟意2 , 杨海林3 , 张映政4 , 陈 林1.姜酚类化合物的稳定性及其抗氧化性能研究
3(J/M/D/N,J:杂志，M：书，D：论文，N：报纸).期刊名称,2009，（6）：585-588 |
| CHEN X. Adap tive slidingmode contr ol for discrete2ti me multi2inputmulti2 out put systems[ J ]. Aut omatica, 2006, 42(6): 4272-435 |
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| 姜酚类化合物的稳定性及其抗氧化性能研究
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刘正实1 , 刘成伦1 , 殷钟意2 , 杨海林3 , 张映政4 , 陈 林11,2,3,4
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1.(1. 重庆大学化学化工学院,重庆400044;2. 重庆工商大学药物化学与化学生物学研究中心,重庆400067;3. 重庆市第十一中学,重庆400061;4. 重庆市珊瑚中学,重庆400060)
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| 摘要: |
| 摘 要:以生姜为原料,采用超临界CO2 萃取姜酚类化合物。在强酸性条件下姜酚类化合物脱水成姜
烯酚后,与甘氨酸加成生成姜烯酚2甘氨酸复合物以增强姜酚类化合物的稳定性。用紫外分光光度法和差分
脉冲伏安法对姜烯酚2甘氨酸进行研究。结果表明:紫外分光光度法测定姜烯酚2甘氨酸,最大特征吸收峰在
230、280 nm处,吸光度比值为1. 776;差分脉冲伏安法测定姜烯酚2甘氨酸,以玻碳电极为工作电极,在pH =
2～8的范围内,姜烯酚2甘氨酸的电化学活性随着pH的降低而减弱;姜烯酚2甘氨酸对N,N2二苯基N′2 |
| 关键词: 关键词:姜酚类化合物 姜烯酚2甘氨酸 差分脉冲伏安法 超临界CO2 萃取 |
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| Research on stability and antioxidant activity of gingerols |
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L IU Zheng2shi1 , L IU Cheng2lun1 , Y IN Zhong2yi2 ,
YANG Ha i2lin3 , ZHANG Y ing2zheng4 , CHEN L in1
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| Abstract: |
| Abstract: The gingerols from gingerwere extracted with supercritical CO2 fluid extraction. The gingerols is ex2
tremly unstable in strong acid, and can dehadrate to be shogaol, while shogaol can take the addition reaction with
glycine to form the shogaol2glycine so as to enhance the stability of gingerols. Shogaol2glycine was analysed by UV
spectrophotometric method and differential pulse voltammetry in this paper. The results showed that there were the
maximum absorp tion at 230 nm and 280 nm wavelengh (A230: A280 is about 1. 776) in the UV spectrophotome2
try. The determination of shogaol2glycine was performanced with differential pulse voltammetry. It was found that
the electrochemistry activity was enhanced when pH was from 2 to 8 under the glassy carbon work electrode. Shog2
aol2glycine has higher scavenging activity. The scavenging ratio was imp roved with the increasing of the shogaol2gly2
cine, the ratio was 81. 8% when the addition was 0. 125 mg. Itwas found that the free radical scavenging capacities
of the the shogaol2glycine had higher than that of glycine. |
| Key words: Key words: gingerols shogaol2glycine differential pulse voltammetry(DPV) supercritical CO2 fluid extrac2
tion |
