@article {1289, title = {In vitro Propagation and Determination of Total Phenolic Compounds, Flavonoid Contents and Antioxidative Activity of Globba globulifera Gagnep}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {November 2020}, pages = {1740-1747}, type = {Research Article}, chapter = {1740}, abstract = {

Introduction: Currently, there is a reduction in the number of Globba globulifera, which is due to its slow multiplication rate, high susceptibility to pathogenic diseases and overexploitation of the plant from natural sources. In vitro culture to study suitable concentrations of plant growth regulators for shoot and root induction of G. globulifera. Bioactive compounds were measured by TPC, TFC and FRSA methods for comparison of those from in vitro and natural conditions. Methods: Microshoots were cultured on solid and liquid MS medium supplemented with various concentrations of cytokinins (BA, Kinetin and TDZ) and auxins (NAA and IBA) for eight weeks. Methanol was used as the extraction solvent via the ultrasonic method, TPC and TFC were both measured. DPPH for free radical scavenging activity was investigated. Results: The best result for shoot formation was achieved when culturing on MS medium with 3 mg/l and 5 mg/l of BAP or 5 mg/l of BAP plus 1 mg/l of IBA. The plantlets were transplanted to pots in a greenhouse. All the planting material showed a 100\% survival rate. The rhizomes of in vitro derived plantlets showed the highest value of TPC (52.28 mg GAE/g crude extract) and FRSA (93.55\%) and lowest of IC50 (0.46 mg/ml). Conclusion: The in vitro culture and antioxidant activity analysis could be the foundation for plant propagation in large quantities and the use of medicine.

}, keywords = {Bioactive compound, DPPH, Micropropagation, TFC, TPC, Zingiberaceae}, doi = {10.5530/pj.2020.12.236}, author = {Wipa Yaowachai and Surapon Saensouk and Piyaporn Saensouk} } @article {1189, title = {Phytochemicals, Antioxidants and Anti-tyrosinase Analyses of Selected Ginger Plants}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {June 2020}, pages = {872-883}, type = {Research Article}, chapter = {872}, abstract = {

Background: Some of Zingeberaceae are not widely used for medicine of food, although in Thailand have been used them for many reasons about health or the diet. This study evalued the phytochemicals and anti-tyrosinase activities of 16 plant species of Alpinia, Amomum, Curcuma, Etlingera and Kaemferia (Zingiberaceae). Methods: The extractions of dried powdered rhizomes were performed using n-hexane, ethylacetate and ethanol. Percentage extract yield of the samples varied among species and solvent extracts. Chemical groups (alkaloids, flavonoids, tannins, polyphenols, steroids and terpenoids) were identified using phytochemical screening. The total phenolic contents (TPC) were analyzed using the Folin-Ciocalteu{\textquoteright}s reagent, while antioxidant activities were detected using 2,2-diphenyl-1- picrylhydrazyl (DPPH) and the 2,2{\textquoteright}-azino-bis (3-ethylbenzothizoline-6-sulphonic acid) (ABTS.+). The anti-tyrosinase was expressed to the half maximal inhibitory concentration (IC50) value (mg/mL). Results: The ethyl acetate extract of Amomum showed the highest value of TPC. The strongest antioxidant activity were found in Amomum and Kaemferia extracts, while ethyl acetate and ethanol extracts of all samples have a better antioxidant properties than the n-hexane extracts. On the other hand, the n-hexane extracts have the highest anti-tyrosinase potential in all samples and of these, Curcuma extracts were the best group. Conclusion: Our research indicated that plants of the Zingiberaceae would be new sources of antioxidants and anti-tyrosinase for further natural product developments in cosmetics, food or nutraceuticals.

}, keywords = {ABTS assay, Anti-tyrosinase, DPPH assay, Phenolic content, Phytochemicals, Zingiberaceae}, doi = {10.5530/pj.2020.12.125}, author = {Apinya Rachkeeree and Kuttiga Kantadoung and Ratchadawan Puangpradub and Ratchuporn Suksathan} } @article {1057, title = {Phytochemical and Pharmacological Support for the Traditional Uses of Zingiberacea Species in Suriname - A Review of the Literature}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {November 2019}, pages = {1511-1525}, type = {Original Article}, chapter = {1511}, abstract = {

The Zingiberacea or ginger family is a family of flowering plants comprising roughly 1,600 species of aromatic perennial herbs with creeping horizontal or tuberous rhizomes divided into about 50 genera. The Zingiberaceae are distributed throughout tropical Africa, Asia, and the Americas. Many members are economically important as spices, ornamentals, cosmetics, traditional medicines, and/or ingredients of religious rituals. One of the most prominent characteristics of this plant family is the presence of essential oils in particularly the rhizomes but in some cases also the leaves and other parts of the plant. The essential oils are in general made up of a variety of, among others, terpenoid and phenolic compounds with important biological activities. The Republic of Suriname (South America) is well-known for its ethnic and cultural diversity as well as its extensive ethnopharmacological knowledge and unique plant biodiversity. This paper first presents some general information on the Zingiberacea family, subsequently provides some background about Suriname and the Zingiberacea species in the country, then extensively addresses the traditional uses of one representative of the seven genera in the country and provides the phytochemical and pharmacological support for these uses, and concludes with a critical appraisal of the medicinal values of these plants.

}, keywords = {Pharmacological activity, Phytochemical composition, Rationale, Suriname, Traditional uses, Zingiberaceae}, doi = {10.5530/pj.2019.11.232}, author = {Dennis RA Mans and Meryll Djotaroeno and Priscilla Friperson and Jennifer Pawirodihardjo} } @article {882, title = {Traditional Usages and Phytochemical Screenings of Selected Zingiberaceae from Central Sulawesi, Indonesia}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {May 2019}, pages = {505-510}, type = {Original Article}, chapter = {505}, abstract = {

Background: Zingiberaceae is one of the significant components of the herbaceous ground flora of Southeast Asia tropical forests. This family includes some medicinally important species, in particular the members of genera of Alpinia, Curcuma, Etlingera and Zingiber (Van Balgooy, 2001). Objective: to identify the traditional usages and evaluate for phytochemical screening of selected Zingiberaceae from Central Sulawesi, Indonesia. Material and Methods: Zingiberaceae samples were collected from the Lore Lindu National Park (LLNP), Central Sulawesi Indonesia and its surroundings and evaluated for their phytochemical contents by using TLC method with particular spraying reagents. Results: the plants were used by the local ethnics for different daily and medicinal purposes. All part of each selected species of Zingiberaceae contain flavonoid, tannins, saponins, triterpenoid and alkaloid although steroids were only found in the leaves of Etlingera flexuosa, Curcuma mangga and Alpinia galanga. Alkaloids were only found in the rhyzome of Etlingera flexuosa, Curcuma aerugynosa, Zingiber montanum. Besides it was also detected in leaves of both Alpinia rubricaulis and Etlingera acanthoides. Additionally, Alkaloids were also discovered in the stem of Ammomum aculeata, Alpinia galanga and Curcuma mangga.

}, keywords = {Central Sulawesi Indonesia, Phytochemical screening, Traditional usages, Zingiberaceae}, doi = {10.5530/pj.2019.11.80}, author = {Ramadanil and Damry and Rusdi and Baharuddin Hamzah and Muhammad Sulaiman Zubair} }