药材粉末加1%NaOH溶液显红色，再加10%HCI溶液后恢复原色，说明药材含有的成分是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26293' and id < 2199529 and id<>'2199529' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26293' and id > 2199529 and id<>'2199529' order by id asc limit 5