19346
Curcuma longa , Saururus cernuus , and Citrus reticulata extracts showed decreased HIF - 1 inhibitory activity after elution through Si gel .
 Chemical: Si
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Si