Antioxidant and Anti-Inflammatory Profiles of Spent Coffee Ground Extracts for the Treatment of Neurodegeneration

Table 4

Bioactive compounds content (μg g⁻¹ of dry weight extract) in spent coffee ground extracts.

No.	Analytes^a	E1 (MeOH)	E2 (H2O)	E3 (MeOH : H2O)	E4 (EtOH : H2O)
1	Shikimic acid
2	Gallic acid
3	Loganic acid	n.d.^c	n.d.	n.d.	n.d.
4	3-CQA^b
5	Swertiamarin	n.d.	n.d.	n.d.	n.d.
6	Gentiopicroside	n.d.	n.d.	n.d.	n.d.
7	(+)-Catechin		n.d.
8	Del 3,5-diglu^b	n.d.	n.d.	n.d.	n.d.
9	Sweroside	n.d.	n.d.	n.d.	n.d.
10	5-CQA^b
11	Caffeine
12	Cya 3-glu^b
13	Vanillic acid
14	Caffeic acid
15	(-)-Epicatechin		n.d.		n.d.
16	Syringic acid
17	p-Coumaric acid
18	Ferulic acid
19	3,5-diCQA^b
20	Quinine
21	Naringin
22	Rutin
23	Hyperoside
24	trans-Cin acid^b
25	Resveratrol	n.d.	n.d.	n.d.	n.d.
26	Amarogentin	n.d.	n.d.	n.d.	n.d.
27	Kae 3-glu^b
28	Quercitrin
29	Quercetin
30	Isogentisin
Total compounds

^aEach sample was analyzed in triplicate (); ^b3-CQA: 3-caffeoylquinic acid; 3,5-diCQA: 3,5-dicaffeoylquinic acid; 5-CQA: 5-caffeoylquinic acid; Del 3,5-diglu: delphinidin 3,5-diglucosiede; Cya 3-glu: cyanidin 3-glucoside; trans-Cin acid: trans-cinnamic acid; Kae 3-glu: kaempferol 3-glucoside; ^cn.d.: not detectable.