4413
Eight novel ACE inhibitory peptides were purified from PSM by reversed - phase chromatography : FFYY ( IC ( 50 ) , 1 . 9 mu M ) , WHP ( 4 . 8 mu M ) , FVP ( 10 . 1 mu M ) , LHPGDAQR ( 10 . 3 mu M ) , IAV ( 27 . 0 mu M ) , VNP ( 32 . 5 mu M ) , LEPP ( 100 . 1 mu M ) , and WNPR ( 880 . 0 mu M ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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