Title:Development of Standardized Cyanthillium cinereum (L.) H.Rob. Extract
and Determination of its Biological Activities
Volume: 12
Issue: 5
Author(s): Mafusol Kaji and Panupong Puttarak *
Affiliation:
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla
University, Hat-Yai, Songkhla 90112, Thailand
- Phytomedicine and Pharmaceutical Biotechnology Research Center,
Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand
Keywords:
Cyanthillium cinereum (L.) H.Rob., standardized extract, anti-inflammation, antioxidant, apigenin, luteolin, microwave- assisted extraction.
Abstract:
Aim: The development of a suitable standardized Cyanthillium cinereum (L.) H.Rob. extract
is an active ingredient in healthcare products.
Background: C. cinereum is the herbal tea specified in the Thai National List of Essential (herbal)
Medicines (NLEM) as the most efficacious tea for smoking cessation. However, herbal tea is inconvenient,
and no standardized C. cinereum extraction method was known.
Objectives: The study aims to develop a standardized C. cinereum extract preparation method and
determine its biological activities.
Methods: Various extraction and fractionation methods were performed in order to optimize a suitable
standardized extract. The extraction yield, biological activities, and biomarkers (apigenin and
luteolin) of the HPLC method were used to select the most suitable extraction method.
Results: The results showed that the Microwave-Assisted Extraction (MAE) method with 75%
EtOH was the most suitable method. The MAE method obtained apigenin and luteolin at
0.320±0.029 and 0.487±0.012 mg/g, respectively. MAE showed good anti-inflammatory and antioxidant
(DPPH and FRAP assay) activities. Subsequently, the MAE extract was fractionated by
the Diaion® HP-20 column in order to obtain the most suitable standardized extract. The 50% plus
75% EtOH fractions showed high apigenin (91.20±1.23 mg/g) and luteolin (167.00±0.49 mg/g)
contents and exerted potent bioactivities. The standardized C. cinereum extract presented high effectiveness
of NO inhibitory activity with an IC50 of 7.88±3.56 μg/mL, and also exerted DPPH
scavenging efficacy with an IC50 value of 8.88±0.17 μg/mL and quercetin equivalent at
137.50±2.20 mg/g by FRAP assay.
Conclusion: This study succeeded in developing a high-yield extraction method of standardized C.
cinereum extract, with potent antioxidant and anti-inflammatory activities, suitable for various purposes.