. 2021 Jan 11;11:354. doi: 10.1038/s41598-020-79770-5

Table 1.

UV/Vis spectrophotometric determination of bioactive compounds and antioxidant properties of VIVEMA TWIN.

Total polyphenol content	TPC	395.85 ± 19.07	mg GAE mL⁻¹ biostimulant
Total Flavan-3-ol content	TF3C	174.42 ± 2.52	mg PAC-A mL⁻¹ biostimulant
Total anthocyanin content	TAnthC	n.d	mg CyE mL⁻¹ biostimulant
Radical scavenging activity	ABTS	790.95 ± 24.66	µmol TE mL⁻¹ biostimulant
Radical scavenging activity	DPPH	519.37 ± 11.43	µmol TE mL⁻¹ biostimulant
Reducing activity	FRAP	688.71 ± 12.49	µmol TE mL⁻¹ biostimulant

Total polyphenol content (TPC), total flavan-3-ol content (TF3C), total anthocyanin content (TAnthC), radical scavenging activity (ABTS and DPPH) and ferric reducing antioxidant power (FRAP) of VIVEMA TWIN. Values are expressed as a mean ± SD of three experiments carried out in triplicate.

GAE gallic acid equivalents, PAC-A A-type proanthocyanidin equivalent, CyE cyanidin-6-glucoside equivalents, TE trolox equivalents, ABTS 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid), DPPH 2,2-diphenyl-1-picrylhydrazyl, FRAP ferric reducing antioxidant power.