Table 5.

The relevant differential metabolites and their concentration level (log₂) involved in critical metabolic pathways

No.	Differential metabolites	PLLA AF			PLLA RF
		12 h	24 h	36 h	12 h	24 h	36 h
1	Phenylalanine	−0.152	−0.055	−0.092	0.522	0.165	0.129
2	Phenylpyruvic acid	−0.319	−0.126	−0.173	0.607	0.786	0.670
3	Tyrosine	0.113	−0.209	−0.249	0.607	−0.165	−0.180
4	2-Phenylacetamide		−0.088		0.487	0.719	0.602