A new lignan, together with a known one, was isolated from Isodon lophanthoides var. gerardianus [Bentham] H. Hara. The structure of the new lignan was elucidated as 1_acetoxyl_2e_piperonyl_6e_[6_methoxyl_pi...A new lignan, together with a known one, was isolated from Isodon lophanthoides var. gerardianus [Bentham] H. Hara. The structure of the new lignan was elucidated as 1_acetoxyl_2e_piperonyl_6e_[6_methoxyl_piperonyl]_3,7_dioxabicyclo_[3,3,0]_octane mainly by 1D and 2D NMR techniques.展开更多
We conducted a preliminarily study on the effects of dietary guaiacol on growth performance of abalone, Haliotis discus hannai Ino. Seven semi-purified diets were formulated with graded levels of guaiacol （0, 5, 10, ...We conducted a preliminarily study on the effects of dietary guaiacol on growth performance of abalone, Haliotis discus hannai Ino. Seven semi-purified diets were formulated with graded levels of guaiacol （0, 5, 10, 50, 100, 500, and 1 000 mg kgl）. Abalone （initial weight： 0.29 ± 0.01 g; initial shell length： 8.55 ± 0.27 mm） were fed with these diets in a re-circulated water system for 152 days. Guaiacol significantly improved the specific growth rate （SGR） （P〈0.05）; excessive dietary guaiacol （1 000 mg kg1） led to significantly high mortality （P〈0.05）, and lipid content in the soft body increased significantly after dietary guaiacol （P〈0.05）. Activities of catalase and phenoloxidase （PO） in the viscera were significantly stimulated by dietary guaiacol （P〈0.05）. Broken-line analysis based on SGR indicated that the minimum dietary guaiacol for the optimal growth of juvenile abalone is 15.43 mg ·kg^-1.展开更多
文摘A new lignan, together with a known one, was isolated from Isodon lophanthoides var. gerardianus [Bentham] H. Hara. The structure of the new lignan was elucidated as 1_acetoxyl_2e_piperonyl_6e_[6_methoxyl_piperonyl]_3,7_dioxabicyclo_[3,3,0]_octane mainly by 1D and 2D NMR techniques.
基金Supported by the Program for New Century Excellent Talents in University (NCET) (No.NCET-07-0785)
文摘We conducted a preliminarily study on the effects of dietary guaiacol on growth performance of abalone, Haliotis discus hannai Ino. Seven semi-purified diets were formulated with graded levels of guaiacol （0, 5, 10, 50, 100, 500, and 1 000 mg kgl）. Abalone （initial weight： 0.29 ± 0.01 g; initial shell length： 8.55 ± 0.27 mm） were fed with these diets in a re-circulated water system for 152 days. Guaiacol significantly improved the specific growth rate （SGR） （P〈0.05）; excessive dietary guaiacol （1 000 mg kg1） led to significantly high mortality （P〈0.05）, and lipid content in the soft body increased significantly after dietary guaiacol （P〈0.05）. Activities of catalase and phenoloxidase （PO） in the viscera were significantly stimulated by dietary guaiacol （P〈0.05）. Broken-line analysis based on SGR indicated that the minimum dietary guaiacol for the optimal growth of juvenile abalone is 15.43 mg ·kg^-1.
