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Table 2 Different extracts of different brands of Serenoa repens discussed and compared in this review

From: Modern extraction techniques and their impact on the pharmacological profile of Serenoa repens extracts for the treatment of lower urinary tract symptoms

Extract (composition) Extraction technique Isolated active compound (%) Ref.
Sabal Select (>90% free fatty acids or their esterified forms, 0.01-0.15% fatty alcohols, 0.25-0.50% total sterols, 0.15-0.35% β-sitosterol) Supercritical CO2 Oleic acid (15%) [26]
Lauric acid (15%)
Sabal Select (>90% free fatty acids or their esterified forms, 0.01-0.15% fatty alcohols, 0.25-0.50% total sterols, 0.15-0.35% β-sitosterol) Supercritical CO2 Lauric acid (30.2%) [27, 28]
Oleic acid (28.5%)
Myristic acid (12.1%)
Palmitic acid (9.1%)
Linoleic acid (4.6%)
free fatty acids/mixed triglycerides ratio: ~55/45
Permixon Solvent (hexane) extraction Oleic acid (36.0%), [2933]
Free saturated and unsaturated fatty acids (>90%) Lauric acid (27.5%),
Myristic acid (12.0%)
Palmitic acid (9.7%).
  Esterified FAs represent 7%, while the rest is composed of phytosterols, flavonoids, alcohols and polyprenic compounds
Prostasan Solvent (96% ethanol) extraction Not reported [34]
(95% total content of free fatty acids)
Prostasan Solvent (96% ethanol) extraction Not reported [35]
(86% total content of free fatty acids)
Saw Palmetto Berry Powder ( SPBE) (Madis Botanical, Inc., New Jersey) Solvent (20% ethanol) extraction of (phyto)sterols β-sitosterol, [36]
Stigmasterol,
Cholesterol
(90% free fatty acids, alcohols and sterols)
PC-SPES Solvent (70% ethanol) extraction Not reported [37]
Talso, Talso uno Supercritical CO2 acid lipophilic compounds, fatty alcohols and sterols as main components [38]
Prostamol Uno Not reported Saturated and unsaturated fatty acids and phytosteroids [39, 40]
ProstateEZE Max Not reported Serenoa repens standardized to fatty acids, Pygeum africanum standardized to β-sitosterol, Epilobium parviflorum, Cucurbita pepo seed oil, lycopene [41]
Profluss Oily extract Serenoa repens extract 85%, lycopene 6%, selenium [42]
SeR Solvent (ethanol) extraction Not reported [43]