[ Objective] To better study the functional components of Iongan fruits. [ Method] The content of y-aminobutyric acid （GABA） in 23 longan species planted in Guangxi were analyzed by automatic amino acid analyzer. [ ...[ Objective] To better study the functional components of Iongan fruits. [ Method] The content of y-aminobutyric acid （GABA） in 23 longan species planted in Guangxi were analyzed by automatic amino acid analyzer. [ Result] The content of y-aminobutyric acid was different in different Iongan species, ranging from 780 to 2 400 mg/kg （FW）with an average of was 1 610 mg/kg （FW）. Shixia Iongan （Wuxuan） had the highest content, and Dongbao No. 9 was the second. The highest GABA content was 3.1 times that of the lowest in Dawuyuan, and 1.5 times that of the average. [ Conclusion] The study provided guidance for the evaluation of GABA content in Iongan and the exploitation of Iongan resources.展开更多
The technological process for prepaxation of LiF TLD is reported. Sixteen types of TLD of LiF:Mg,Ti and LiF:Mg,Cu,P series are produced for dosimetry of X, γradiations and in neutron-γmixed radiation field. The meas...The technological process for prepaxation of LiF TLD is reported. Sixteen types of TLD of LiF:Mg,Ti and LiF:Mg,Cu,P series are produced for dosimetry of X, γradiations and in neutron-γmixed radiation field. The measurement parameters have been optimizationally selected by factors of parameter evaluation (P) and orthogonal method, and the procedure of quality control is recommended.展开更多
基金Supported by Guangxi Scientific Research and Technological Development Project(Gui 0815009-2-5)
文摘[ Objective] To better study the functional components of Iongan fruits. [ Method] The content of y-aminobutyric acid （GABA） in 23 longan species planted in Guangxi were analyzed by automatic amino acid analyzer. [ Result] The content of y-aminobutyric acid was different in different Iongan species, ranging from 780 to 2 400 mg/kg （FW）with an average of was 1 610 mg/kg （FW）. Shixia Iongan （Wuxuan） had the highest content, and Dongbao No. 9 was the second. The highest GABA content was 3.1 times that of the lowest in Dawuyuan, and 1.5 times that of the average. [ Conclusion] The study provided guidance for the evaluation of GABA content in Iongan and the exploitation of Iongan resources.
文摘The technological process for prepaxation of LiF TLD is reported. Sixteen types of TLD of LiF:Mg,Ti and LiF:Mg,Cu,P series are produced for dosimetry of X, γradiations and in neutron-γmixed radiation field. The measurement parameters have been optimizationally selected by factors of parameter evaluation (P) and orthogonal method, and the procedure of quality control is recommended.
