Table 1 Content of biologically active compounds in the investigated extracts.

From: Stability and anti-proliferative properties of biologically active compounds extracted from Cistus L. after sterilization treatments

Sterilization method

TPC* in aqueous Cistus extract (μg/ml)

TFC** in aqueous extract (μg/ml)

TPC* in aqueous Cistus extract (μg/ml)

TFC** in aqueous extract (μg/ml)

TPC* in aqueous Cistus extract containing 1.5 wt% of carboxymethyl chitosan (μg/ml)

TFC** in aqueous extract (μg/ml) containing 1.5 wt% of carboxymethyl chitosan (μg/ml)

TPC* in aqueous Cistus extract containing 1.5 wt% of carboxymethyl chitosan (μg/ml)

TFC** in aqueous extract (μg/ml) containing 1.5 wt% of carboxymethyl chitosan (μg/ml)

Before sterilization

After sterilization

Before sterilization

After sterilization

Filtration

316.23 ± 15.01

1079.82 ± 4.44

239.81 ± 0.27

745.59 ± 3.16

300.13 ± 0.11

1066.35 ± 3.28

228.39 ± 0.19

741.23 ± 1.27

Radiation

246.54 ± 0.95

801.91 ± 0.84

236.88 ± 0.33

781.83 ± 6.21

Steam

283.32 ± 0.79

903.41 ± 1.03

271.14 ± 0.33

901.49 ± 0.18

  1. *TPC expressed as the gallic acid equivalent which is commonly used in the pharmaceutical industry to determine the total phenol content57; **TFC expressed as the quercetin equivalent.
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