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. 2022 Feb 16;11(4):563. doi: 10.3390/foods11040563

Table 3.

Fermented papaya skin benefits.

Preparation Study Type Dose Model Bioactive Effect Reference
BioRex® In vitro study 1–5 mg/mL Peripheral blood neutrophils Suppressed
generation of superoxide,
hydroxyl radical, and total production
of radicals;
↓ catalase activity
[58]
In vivo study - Thermal wound model in rats ↓ wound area and bacterial burden;
↓ catalase activity
FPP® In vivo study FPP group: 0.2 g/kg 5 days/week
(8 weeks)
Placebo group: D-glucose in the same manner as in FPP group
(8 weeks)
Adult obese diabetic mice divided into 2 groups (FPP and placebo control) ↑ NO and iNOS [54]
FPP® Double-blind study FPP group: 4.5 g 2 times/day
(90 days)
Antioxidant control group: Antioxidant cocktail with similar flavored and in the same manner as in FPP group
(90 days)
60 healthy non-smoker males and females (40–65 years) divided into 2 groups FPP supplementation:
↑ skin moisturization, evenness, and elasticity;
↑ NO and SOD production;
Gene regulatory improvement in the skin.
[59]

FPP®, fermented papaya preparation; NO, nitric oxide; SOD, superoxide dismutase. ↑ increase, ↓ decrease.