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Table 1 Data correlation coefficients regarding the release of active constituents of propolis lycopene systems

From: The use of some nanoemulsions based on aqueous propolis and lycopene extract in the skin's protective mechanisms against UVA radiation

Sample

"n"

R

Higuchi Model

Zero-order kinetics

   

k (% h-1/2)

R

k (% h-1)

R

formulation with 20% lycopene, 27% propolis, 53% water vol./vol (nanoemulsion 1)

Newly prepared

  

4.45

0.997

0.62

0.994

 

0.80

0.971

3.18

0.998

0.70

0.998

After three weeks

  

4.16

0.987

0.77

0.999

formulation with 35% lycopene, 35% propolis, 30% water vol./vol (nanoemulsion 2)

Newly prepared

  

3.47

0.983

0.71

0.998

After one week

0.98

0.980

3.87

0.996

0.67

0.995

After two weeks

  

3.68

0.999

0.62

0.999

After three weeks

  

3.48

0.989

0.68

0.990