Determination of 8 Endogenous Alkaloid Components in Boletus Using Ultrahigh-Performance Liquid Chromatography Combined with Quadrupole-Time of Flight Mass Spectrometry

Table 4

Content of the 8 endogenous alkaloids in actual samples.

Compound	Boletus albus peck	Boletus rubellus krombh	Boletus impolitus
Nicotine (mg/kg)	0.491	1.45	3.41
Anabasine (mg/kg)	ND	ND	ND
Choline (mg/kg)	147	131	142
Tryptamine (mg/kg)	115	9.15	45.0
Putrescine (mg/kg)	108	90.6	82.6
Nicotinamide (mg/kg)	9.34	6.68	3.94
Muscarine (mg/kg)	0.215	0.0329	0.0483
Cotinine (mg/kg)	ND	ND	ND