Table 2.

Activity of microbial enzymes in the caecum digesta of rats (μmol/h/g).

Parameters	Group 1					Extract (E) p	Dosage (D) p	E × D p
	C	E1L	E2L	E1H	E2H
α-Glucosidase	11.3 ± 1.366	11.0 ± 0.638	11.9 ± 1.058	11.7 ± 0.906	11.6 ± 1.194	0.695	0.826	0.621
β-Glucosidase	1.67 ± 0.118	2.59 ± 0.294 *	2.94 ± 0.383 *	1.57 ± 0.217	1.56 ± 0.298	0.582	0.000	0.556
α-Galactosidase	6.86 ± 0.415	6.77 ± 0.749	6.57 ± 0.556	3.90 ± 0.844 *	4.85 ± 0.660 *	0.602	0.003	0.425
β-Galactosidase	26.9 ± 1.526	26.9 ± 2.722	27.3 ± 6.127	10.9 ± 2.063 *	11.0 ± 1.480 *	0.954	0.000	0.966
β-Glucuronidase	5.48 ± 0.582	5.34 ± 0.599 a	3.85 ± 0.171 a,b,*	2.68 ± 0.284 b,*	4.24 ± 0.878 a,b	0.950	0.051	0.011

Values are expressed as mean ± standard error of mean; E × D, interaction between investigated extracts and dosage of extracts; ¹ C, was fed a standard diet for laboratory rodents; E1L, E2L were fed diet with low dosage of raspberry extracts characterized by different ratio of the ETs to flavan-3-ols (7.7 and 3.1 respectively); E1H, E2H were fed diet with high dosage of raspberry extracts characterized by different ratio of the ETs to flavan-3-ols (7.7 and 3.1 respectively); ^a,b Data with different superscripts in the same column are significantly different with each other at p ≤ 0.05 (Duncan test done only in the case of significant E × D interaction); * Data significantly different with the control group at p ≤ 0.05 (t-Student test).