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. 2025 Aug 19;13:e19944. doi: 10.7717/peerj.19944

Table 3. Effects of UPS on the intestinal digestive enzyme activity of juvenile sea cucumbers.

	UPS concentration (groups)
	HS0	HS1	HS2	HS3	HS4	HS5
Cellulase (U/mg prot)	2.50 ± 0.48^b	4.46 ± 1.18^b	14.53 ± 1.00^a	4.24 ± 0.33^b	4.11 ± 0.89^b	5.19 ± 0.89^b
Lipase (U/mg prot)	48.36 ± 7.62^b	58.26 ± 7.96^ab	64.14 ± 1.75^ab	56.69 ± 6.68^ab	73.36 ± 5.00^ab	77.68 ± 4.84^a
Pepsin (U/mg prot)	1.56 ± 0.45^a	1.09 ± 0.18^a	1.25 ± 0.25^a	0.79 ± 0.08^a	1.30 ± 0.28^a	0.96 ± 0.11^a
Amylase (U/mg prot)	1.01 ± 0.29^a	1.01 ± 0.04^a	1.13 ± 0.30^a	1.23 ± 0.20^a	1.28 ± 0.09^a	1.25 ± 0.02^a

Note:

Data are expressed as means ± S.E.M (n = 3). Different letters show a significant difference (P < 0.05).