TY - JOUR
T1 - Effects of gamma irradiation and comparison of different extraction methods on sesquiterpene lactone yields from the medicinal plant Thapsia garganica L. (Apiaceae)
AU - Mohamed Ibrahim, Abir M.
AU - Martinez-Swatson, Karen A.
AU - Benkaci-Ali, Farid
AU - Cozzi, Federico
AU - Zoulikha, Ferhat
AU - Simonsen, Henrik T.
PY - 2018
Y1 - 2018
N2 - Ethnopharmacological relevance: Thapsia garganica L. roots are used in Algerian traditional medicine for a number of ailments. It is used in a poultice as an antitussive treatment of acute bronchitis and pneumonia, in preparations with milk or oil taken orally to treat common lung diseases, and with the direct application of root sections for the soothing of dental pains. Aim of the study: The objective of this study was to evaluate the combined effect of microwave assisted extraction and gamma irradiation on sesquiterpene lactones in T. garganica extracts Materials and methods: To evaluate the combined effect of microwave assisted extraction and gamma irradiation on the highly bioactive compounds found in extracts of Algerian T. garganica, samples from different locations in Algeria were prepared by extraction from dried leaf and root samples of dried plant material, using different extraction methods Quantification of the compounds of interest was done using an HPLC. The antioxidant activity extracts was determined using the two free radical scavenging assays: the 2,2-diphenyl-picryl-hydrazyl (DPPH) and the 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) diammonium salt (ABTS). Results: It was found that location and extraction method had significant impact on the phytochemical composition of extracts. Gamma irradiation was found to have no effect on the phytochemical composition of the plant extracts or on their antioxidant properties. Conclusion: The study has shown that microwave assisted extraction is an effective method for investigating chemical compounds in T. garganica and the results support the notion that gamma irradiation for sterilisation do not alter the chemical composition. The authors wish to clarify that we cannot recommend the usage of any parts of T. garganica, in any form, for any remedy due to its very high toxicity.
AB - Ethnopharmacological relevance: Thapsia garganica L. roots are used in Algerian traditional medicine for a number of ailments. It is used in a poultice as an antitussive treatment of acute bronchitis and pneumonia, in preparations with milk or oil taken orally to treat common lung diseases, and with the direct application of root sections for the soothing of dental pains. Aim of the study: The objective of this study was to evaluate the combined effect of microwave assisted extraction and gamma irradiation on sesquiterpene lactones in T. garganica extracts Materials and methods: To evaluate the combined effect of microwave assisted extraction and gamma irradiation on the highly bioactive compounds found in extracts of Algerian T. garganica, samples from different locations in Algeria were prepared by extraction from dried leaf and root samples of dried plant material, using different extraction methods Quantification of the compounds of interest was done using an HPLC. The antioxidant activity extracts was determined using the two free radical scavenging assays: the 2,2-diphenyl-picryl-hydrazyl (DPPH) and the 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) diammonium salt (ABTS). Results: It was found that location and extraction method had significant impact on the phytochemical composition of extracts. Gamma irradiation was found to have no effect on the phytochemical composition of the plant extracts or on their antioxidant properties. Conclusion: The study has shown that microwave assisted extraction is an effective method for investigating chemical compounds in T. garganica and the results support the notion that gamma irradiation for sterilisation do not alter the chemical composition. The authors wish to clarify that we cannot recommend the usage of any parts of T. garganica, in any form, for any remedy due to its very high toxicity.
KW - Antioxidant
KW - Gamma irradiation
KW - Microwave assisted extraction
KW - Thapsia garganica
KW - Thapsigargin
U2 - 10.1016/j.jarmap.2017.09.002
DO - 10.1016/j.jarmap.2017.09.002
M3 - Journal article
AN - SCOPUS:85030697972
SN - 2214-7861
VL - 8
SP - 26
EP - 32
JO - Journal of Applied Research on Medicinal and Aromatic Plants
JF - Journal of Applied Research on Medicinal and Aromatic Plants
ER -