Evaluation of two methods for the extraction of antioxidants from medicinal plants

Hua-Bin Li; Yue Jiang; Chi-Chun Wong; Ka-Wing Cheng; Feng Chen
May 2007
Analytical & Bioanalytical Chemistry;May2007, Vol. 388 Issue 2, p483
Academic Journal
The efficiencies of two traditional extraction methods used in Chinese medicine (the decoction method and the maceration method) were evaluated for the extraction of antioxidants from medicinal plants. A group of medicinal plants possessing nutritious and tonic functions were chosen as model plants. A commonly used extraction method was used as a reference method. The antioxidant capacities and total phenolic contents of the extracts were measured by ferric-reducing antioxidant power and Trolox equivalent antioxidant capacity assays as well as the Folin–Ciocalteu method, respectively. The results obtained indicated that the two traditional extraction methods could effectively extract antioxidants from medicinal plants. These extraction methods can be applied to the analysis and purification of antioxidants in plants, respectively. At home, people can use these methods to extract antioxidants from plants for consumption. In the food industry, these methods could be utilized to prepare crude extracts from plants containing antioxidants for use as food additives. [Figure not available: see fulltext.]


Related Articles

  • A Potential Antioxidant Resource: Endophytic Fungi from Medicinal Plants. Wu-Yang Huang; Yi-Zhong Cai; Jie Xing; Corke, Harold; Mei Sun // Economic Botany;Spring2007, Vol. 61 Issue 1, p14 

    Medicinal plants and their endophytes are important resources for discovery of natural products. Several previous studies have found a positive correlation between total antioxidant capacity (TAC) and total phenolic content (TPC) of many medicinal plant extracts. However, no information is...

  • Effect of extraction conditions on total phenolic content and antioxidant capacity of pretreated wild Peumus boldus leaves from Chile. Soto, Carmen; Caballero, Eduardo; Pérez, Eduardo; Zúñiga, Maria Elvira // Food & Bioproducts Processing: Transactions of the Institution o;Jul2014, Vol. 92 Issue 3, p328 

    We studied the effect of both heat-drying and freeze-drying on the recovery of total phenolic compounds (TPCs) and antioxidant capacity from leaves of Peumus boldus Molina (Boldo), an endemic tree of Chile, using DPPH (2,2- diphenyl-l-picrylhydrazyl radical scavenging), FRAP (ferric reducing...

  • Antioxidant Capacity and Phenolic Content of Some Nepalese Medicinal Plants. Maharjan, Bijaya Laxmi; Baral, Bikash // American Journal of Plant Sciences;Aug2013, Vol. 4 Issue 5, p1660 

    Antioxidant capacities and phenolic contents of medicinal plants namely Usnea longifolia, Cetraria nepalensis, Parmelia minarum, Everniastrum nepalense, Rhododendron anthopogon and Fritillaria delavayi were analyzed via Folin-Ciocaltau assay, Ferric reducing activity power assay and...

  • IN-VITRO ANTIOXIDATIVE ACTIVITY OF PHENOLIC AND FLAVONOID CONTENTS OF LEAVES OF MEDICINAL PLANT -- EHRETIA LAEVIS. Torane, Rasika C.; Kamble, Gayatri S.; Upadhye, Sujata V.; Deshpande, Nirmala R. // International Journal of Pharma & Bio Sciences;Jan-Mar2011, Vol. 2 Issue 1, pP810 

    The aim of this work was to estimate the total phenolic and flavonoid content and to evaluate in vitro antioxidant activity of methanolic extract of Ehretia laevis. The methanol extract (A) of leaves of E.laevis was analysed for the total phenolic and flavonoid contents and antioxidant activity....

  • Phenolic Compounds and Antioxidant Activity of Methanolic Extracts of Moosir (allium hirtifolium boiss) Bulbs. Siahpoosh, Amir; Sohangir, Sogol // Jundishapur Scientific Medical Journal;2013, Vol. 11 Issue 6, p625 

    No abstract available.

  • The Original Food Additives. Bank, Ginny // Prepared Foods;Oct2011, Vol. 180 Issue 10, pNS3 

    The article discusses the use of plant and herb extracts to enhance the color, taste and flavor of foods, beverages and supplements. Some historical accounts documenting the human use of plant-based extracts are provided. An overview of extraction techniques is provided, including steeping the...

  • Antioxidant Findings of Araku Environment Medicinal Plants Using Different Assays. Koppula, Sunil Babu; Ammani, K. // Drug Invention Today;Aug2011, Vol. 3 Issue 8, p203 

    We determined the total phenolic content and antioxidant activity of methanol extracts from selected plants from Araku environment. Total phenolic content of the plants was analyzed by Folin-Ciocalteu colorimetric method, while the total antioxidant activity was analyzed and ferric ion reducing...

  • Antioxidant and antimicrobial properties of five medicinal Libyan plants extracts. Alghazeer, Rabia; El-Saltani, Hussein; Saleh, Nabeel; Al-Najjar, Asma; Hebail, Fatma // Natural Science;May2012, Vol. 4 Issue 5, p324 

    Five Libyan medicinal plants Thapsia garganica, Hammada scoparia, Euphorbia serrata, Hyoscyamus albus and Retama rateam were selected to evaluate their biological activities. Their total phenolic and flavanoid contents were assessed. The antioxidant activity was estimated using 2, 2-diphenyl-...

  • PHENOLIC COMPOUND OF BENIN'S RED SORGHUM AND THEIR ANTIOXIDANT PROPERTIES. AGBANGNAN D., C. P.; NOUDOGBESSI, J. P.; CHROSTOWSKA, A.; TACHON, C.; FOUQUET, E.; SOHOUNHLOUE, D. C. K. // Asian Journal of Pharmaceutical & Clinical Research;Apr 2013 Supplement 2, Vol. 6, p280 

    The antioxidant activities and phenolic content of various organs (grain, stalk and foliar sheath) of the red sorghum, a tinctorial and medicinal plant of Benin, were determined. The total phenolic content, determined according to the Folin-Ciocalteu method, varied from 19.8 to 233.5 mg/g of dry...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics