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Micropropagation of Turmeric (Curcuma longa Linn.) through in vitro Rhizome Bud Culture
K. Nasirujjaman,M. Salah Uddin,S. Zaman,M.A. Reza
Journal of Biological Sciences , 2005,
Abstract: An ideal micropropagation method of turmeric (Curcuma longa Linn.) has been developed using rhizome bud explants. Woody Plant Medium supplemented with different concentrations of BAP alone or in combination with different concentrations of NAA produced varying degree of multiple shoots. A supplementation of 4.0 mg L 1 BAP + 1.0 mg L 1 NAA gave the best result. In this case, 95% of the inoculated explants induced multiple shoots within 8-10 days of inoculation and the average number of shoots per explant was 6.70. Rooting was spontaneous in almost all the treatments. Most of the regenerated shoots were successfully transferred to soil under field conditions.
Antidermatophytic Properties of Ar-Turmerone, Turmeric Oil, and Curcuma longa Preparations  [PDF]
Mukda Jankasem,Mansuang Wuthi-udomlert,Wandee Gritsanapan
ISRN Dermatology , 2013, DOI: 10.1155/2013/250597
Abstract: Curcuma longa L. or turmeric of the family Zingiberaceae is widely used in Thai traditional medicines for the treatment of rash, itching, tinea, and ringworm. Previous studies on turmeric oil reported effective antifungal activity against dermatophytes, a group of fungi that causes skin diseases. In this study, turmeric creams containing 6 and 10%?w/w turmeric oil were prepared and tested against clinical strains of dermatophytes using broth dilution technique. Minimum fungicidal concentrations of 6 and 10%?w/w turmeric creams were found to be 312?μg/mL. Ar-turmerone, a major compound separated from turmeric oil, promoted more effective antidermatophytic activity with the MICs of 1.56–6.25?μg/mL, compared to 3.90–7.81?μg/mL of standard ketoconazole. The results indicated that 6%?w/w turmeric oil in the cream was suitable to be formulated as antidermatophytic preparation. Further research should be done on long-term chemical and antifungal stabilities of the preparation. 1. Introduction Dermatophytosis (tinea or ringworm) is a prevalent form of fungal infections found in Thailand because of the tropical climate. The infection is caused by a group of keratinophilic fungi called dermatophytes. Fungi commonly involved are of the genera Trichophyton, Microsporum, and Epidermophyton. Dermatophytosis can transfer from soil and animals to humans and cause infection on many parts of the body [1, 2]. Historically, Thai traditional medicines containing Curcuma longa have been used for the treatment of dermatophytes. The dry powdered rhizome is mixed with a small volume of water and the mixture is applied onto infected skin [3]. C. longa L. or turmeric is a well-known medicinal plant of the family Zingiberaceae [4]. It has been used for the treatment of skin diseases, rash, itching, tinea and ringworm. Turmeric is a perennial herb with thick and ellipsoid-ovate rhizome with orange cortex inside. It is cultivated easily, wildly distributed in Thailand and other tropical and subtropical countries, and is also famous as a spice and coloring agent [5]. Medicinal uses of the rhizomes arise from volatile oil as a carminative and antifungal activity and yellow curcuminoids for antioxidative and anti-inflammatory properties. Active constituents in turmeric volatile oil are turmerone, atlantone, and zingiberone [6, 7]. Turmeric oil isolated from turmeric rhizome possesses effective antifungal activity against dermatophytes [8, 9]. The creams containing 3–8%?w/w turmeric oil showed similar antidermatophytic activity [10]. To determine a suitable concentration of turmeric oil
Development of a Molecular Marker to Identify a Candidate Line of Turmeric (Curcuma longa L.) with a High Curcumin Content  [PDF]
Hiroshi Hayakawa, Tetsuya Kobayashi, Yukio Minaniya, Katsura Ito, Akira Miyazaki, Tatsuya Fukuda, Yoshinori Yamamoto
American Journal of Plant Sciences (AJPS) , 2011, DOI: 10.4236/ajps.2011.21002
Abstract: Dried and fresh rhizomes of the spice turmeric (Curcuma longa L.) are well known in traditional medicine, and curcu- min is widely used in various geographic regions. Although there are differences in the amount of curcumin within this species, identification of the candidate line by rhizome is difficult because of the relative simplicity of its morphological characteristics. To accurately identify lines of C. longa with a high content of curcumin, we analysed several sequences of chloroplast DNA. First, to determine the appropriate outgroup taxa in which to conduct infras-pecific analyses of C. longa, we reconstructed the molecular phylogenetic tree of C. longa and its allied species. The results showed that C. aromatica and C. zedoaria are closely related to C. longa. Next, to develop a molecular marker for identifying lines of C. longa with a high content of curcumin, a network analysis using chloroplast microsatellite regions was performed. Results showed that a unique haplotype within C. longa corresponds to the high curcumin content line. Therefore, the chloroplast microsatellite regions used for the analysis allowed us to determine the lines of this species with high cur- cumin content.
De Novo Transcriptome Assembly (NGS) of Curcuma longa L. Rhizome Reveals Novel Transcripts Related to Anticancer and Antimalarial Terpenoids  [PDF]
Ramasamy S. Annadurai, Ramprasad Neethiraj, Vasanthan Jayakumar, Anand C. Damodaran, Sudha Narayana Rao, Mohan A. V. S. K. Katta, Sreeja Gopinathan, Santosh Prasad Sarma, Vanitha Senthilkumar, Vidya Niranjan, Ashok Gopinath, Raja C. Mugasimangalam
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0056217
Abstract: Herbal remedies are increasingly being recognised in recent years as alternative medicine for a number of diseases including cancer. Curcuma longa L., commonly known as turmeric is used as a culinary spice in India and in many Asian countries has been attributed to lower incidences of gastrointestinal cancers. Curcumin, a secondary metabolite isolated from the rhizomes of this plant has been shown to have significant anticancer properties, in addition to antimalarial and antioxidant effects. We sequenced the transcriptome of the rhizome of the 3 varieties of Curcuma longa L. using Illumina reversible dye terminator sequencing followed by de novo transcriptome assembly. Multiple databases were used to obtain a comprehensive annotation and the transcripts were functionally classified using GO, KOG and PlantCyc. Special emphasis was given for annotating the secondary metabolite pathways and terpenoid biosynthesis pathways. We report for the first time, the presence of transcripts related to biosynthetic pathways of several anti-cancer compounds like taxol, curcumin, and vinblastine in addition to anti-malarial compounds like artemisinin and acridone alkaloids, emphasizing turmeric's importance as a highly potent phytochemical. Our data not only provides molecular signatures for several terpenoids but also a comprehensive molecular resource for facilitating deeper insights into the transcriptome of C. longa.
Histopathological Changes in the Livers of Broiler Chicken Supplemented with Turmeric (Curcuma longa)  [PDF]
S.I. AL-Sultan,A.A. Gameel
International Journal of Poultry Science , 2004,
Abstract: Four groups of broiler chicken (A, B, C and D) of 50 birds each , received dietary supplement of turmeric (Curcuma longa) at concentrations of 0.0, 2.5, 5.0 and 10% respectively. Liver sections from birds of all groups showed parenchymal and portal infiltration of mononuclear cells and hyperaemia of portal vessels. Dilatation of bile ducts, mild proliferation of biliary epithelium and periportal hepatocyte degeneration was noticed only in groups B, C and D particularly group B birds killed three weeks after treatment. These changes were related to feeding of Turmeric (Curcuma longa).
INVITRO ANTIPLAETLET ACTIVITY- ETHANOLIC EXTRACT OF RHIZOME OF CURCUMA LONGA LINN  [cached]
Gopinathan N.,Harish M.Sai Singh,Chitra K,Uma Maheswara Reddy.C
International Journal of Biomedical Research , 2013, DOI: 10.7439/ijbr.v2i2.86
Abstract: Curcuma longa Linn belongs to the family Zingiberaceae , which is commonly called as turmeric.The traditional report indicates that Curcuma longa Linn is used in the treatment of blood clot.Hence an attempt has been made to screen the effect of Curcuma longa Linn in prevention of platelet aggregation induced by ADP.The ethanolic extract was prepared by continuous hot percolation method. Ethanolic extract was tested in concentration of 62 μg/ml,125 μg/ml,250 μg/ml &500 μg/ml.Aspirin was used as standard.The extract showed comparable antiplatelet activity at 250 μg/ml.The inhibition of platelet aggregation may be due to presence of curcumin in curcuma longa
INVITRO ANTIPLAETLET ACTIVITY- ETHANOLIC EXTRACT OF RHIZOME OF CURCUMA LONGA LINN
Gopinathan N.,Harish M.Sai Singh,Chitra K,Uma Maheswara Reddy.C
International Journal of Biomedical Research , 2011, DOI: 10.7439/ijbr.v2i2.86
Abstract: Curcuma longa Linn belongs to the family Zingiberaceae , which is commonly called as turmeric.The traditional report indicates that Curcuma longa Linn is used in the treatment of blood clot.Hence an attempt has been made to screen the effect of Curcuma longa Linn in prevention of platelet aggregation induced by ADP.The ethanolic extract was prepared by continuous hot percolation method. Ethanolic extract was tested in concentration of 62μg/ml,125 μg/ml,250 μg/ml &500 μg/ml.Aspirin was used as standard.The extract showed comparable antiplatelet activity at 250 μg/ml.The inhibition of platelet aggregation may be due to presence of curcumin in curcuma longa
Preliminary Phytochemical Evaluation of the Oil Extracted from Leaves of Curcuma longa L. and its Application as Biofuel  [PDF]
Nilesh Janardhan Mundle,Shamrao Mengre
International Journal of Pharmaceutical and Phytopharmacological Research , 2011,
Abstract: Turmeric leaves are the waste product for farmer after removing turmeric rhizome. In the present work the oil was extracted from the leaves of Curcuma longa L. (Family - Zingiberaceae) by hydro distillation method. The extracted oil was studied for preliminary physicochemical and phytochemical tests. The phytochemical evaluation of the turmeric leaf oil indicated the presence of terpenes. Extracted turmeric leaf oil was used to run two stroke and four stroke engine. Engine eliminates less environment harmful product with turmeric oil as compared to Petrol. It has been concluded that turmeric leaf oil can be used as an alternative biofuel for Petrol.
Effect of inoculation with arbuscular mycorrhizal fungi on growth, nutrient uptake and curcumin production of turmeric (Curcuma longa L.)  [PDF]
Kenji Yamawaki, Atsushi Matsumura, Rintaro Hattori, Arata Tarui, Mohammad Amzad Hossain, Yoshiyuki Ohashi, Hiroyuki Daimon
Agricultural Sciences (AS) , 2013, DOI: 10.4236/as.2013.42011
Abstract:

Profitable turmeric (Curcuma longa L.) production requires adequate nutrients. We have investigated the effect of inoculation with arbus cular mycorrhizal fungi (AMF) on growth, nutrient uptake, yield and curcumin production of turmeric under field and glasshouse conditions. Although AMF inoculation slightly increased plant height, leaf number and shoot N content, no statistical differences were observed in vegetative growth parameters, biomass production, nutrient uptake and curcumin content compared to control plants under field conditions. It was difficult to determine the exact effect of inoculated AMF on turmeric growth because of indigenous AMF. On the other hand, turmeric showed better response to AMF inoculation under greenhouse conditions. AMF inoculation resulted in higher biomass production and nutrient uptake of turmeric. Moreover the concen tration of curcumin, contained in the rhizome of turmeric, increased in AMF treatment. These results indicate that AMF inoculation has beneficial effects on turmeric growth and curcumin production. AMF inoculation to turmeric field would be effective when indigenous soil populations of AMF are low or native AMF are no longer effective.


Analgesic and antipyretic activity of Curcuma longa rhizome extracts in wister rats  [cached]
S. Neha,G. D. Ranvir,C. R. Jangade
Veterinary World , 2009,
Abstract: The study was carried out to ascertain analgesic and antipyretic activities of rhizome extracts of Curcuma longa in Wister rats. Both aqueous and alcoholic extracts at 100 and 200 mg/kg by oral, single dose treatment for seven days revealed significant difference (P<0.05, 0.01) in reaction time in terms of analgesic activity before and after treatments which was comparable to analgin (10 mg/kg b wt.) and were ineffective in reversal of brewers yeast induced pyrexia. Solvent yield of these extracts was 20 percent and color dark brown and reddish brown with solid and semisolid consistency respectively. [Vet World 2009; 2(8.000): 304-306]
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