a close relationship exists between relative disaccharidase activities ( maltase , sucrase , trehalase , palatinase , turanase , lactase , and cellobiase ) in amniotic fluid and corresponding jejunal mucosa of five human fetuses ( 16 to 21 weeks of gestation ) suggesting that these intestinal enzymes pass into amniotic fluid .
C0012610
disaccharidase
C0040814
trehalase