Table 2.

The PI values of yams and yam polysaccharides.

PI
NPSYP	121.13	NPSY	30.47
NPBYP	55.67	NPBY	8.37
HPSYP	86.08	HPSY	−8.07
HPBYP	107.84	HPBY	−2.78
FYP	60.40	FY	−11.84
MYP	75.40	MY	5.11
RYP	100.81	RY	16.77
Control
NC	−118.07