Dioscorea bulbifera – plant in flowering. It has a similar structure and activity as the adrenal steroids. Dioscorea is a genus of over 600 species of flowering plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. Previous investigations have shown that the major chemical constituents of Dioscorea species are steroidal saponins (including furostane, spirostane, and pregnane types), clerodane diterpenes, phenolics, cyanidins, quinones, diarylheptanoids, and nitrogen-containing compounds (Salehi et al., 2019). The diarylnonanoids are a class of natural products similar in structure to the diarylheptanoids, which have a wide spectrum of reported biological activities. Allantoin and dioscin are also well known active constituents from tubers of Dioscorea species (Wei et al., 2013). Chemical Constituents Of Dioscorea Bulbifera19 Table no: 3 Chemical constituents of different parts of Dioscorea bulbifera19 PART CHEMICAL CONSTITUENTS Tuber Major- Diosgenin (different parts of plant) - diosgenin is a steroidal saponin belonging to the sapogenin group, is the principle active constituent of Dioscorea bulbifera Linn. Dioscorea composita, or barbasco, is a species of yam in the genus Dioscorea, native to Mexico.It is notable for its role in the production of diosgenin, which is a precursor for the synthesis of hormones such as progesterone. Morphological characteristics. METHODS The chemical constituents were isolated by silica gel and RP-18 column chromatography, and their chemical structures were elucidated by IR, NMR and MS. Corms of Dioscorea bulbifera are aphrodisiac, tonic, and used for treating sore throat, boils and swellings, dysentery, piles, and syphilis. The vast majority of the species are tropical, with only a few species extending into temperate climates. Author information: (1)School of Pharmacy, Anhui University of Chinese Medicine & Anhui Key Laboratory for Modern Chinese Materia Medica, Hefei 230012, China. Chemical constituents. The main constituents of dioscorea are diosgenin, a steroidal sapogenin (4 to 6%) and its glycosides, Smilagenin and β-isomer yammogenin. JYB22-XS033), and Innovative Research Team of Beijing University of Chinese Medicine (No. 5 Marks. Chemical investigation of the dichloromethane extracts of Dioscorea luzonensis Schauer. It is a source of diosgenin, which is used to prepare synthetic hormones such as progesterone and cortisone. AIM To study the chemical constituents of Dioscorea parviflora. Give the biological source, Chemical constituents and uses of any two volatile oil drugs; Give the biological source, Chemical tests and uses Benzoin ... Give the chemical constituents and therapeutic uses of Mentha and Fennel; Give the identification tests for Benzoin and Colophony. Rhizomes also contain an enzyme sapogenase. Other alkaloids of opium include narcotine (4 to 8 percent), codeine (0.8 to 2.5 percent), papaverine (0.5 to 2.5 percent), thebaine (0.5 to 2.0 percent) and many others. (Eleazu et al, 2013). It comprises ca. Dioscorea bulbifera is also called Air potato it belongs to yam species. The roots contain diosgenin (4–6%) a steroidal sapogenin and its glycoside smilagenin, epismilagenin and beta isomer yammogenin. They are non-edible, due to their very bitter taste. Dioscorea Structure of dioscin ( diosgenin + glycone part ) 10. Dioscorea Chemical Constituents :- • Dioscin (major glycoside) • Diosgenin (aglycone) • Smilagenin • Epi smilagenin • β – Yammogenin • Starch • sapogenase 9. Leaves alternate or opposite, petiolate, simple or palmately compound, basal veins 3--9. Therapeutic uses. Diosgenin extracted from Dioscorea composita was instrumental in the development of the … Rootstock rhizomatous or tuberous, variable in color, shape, chemical constituents, and depth in ground. Both … Foliage The leaves are alternate proximally but can become opposite as they advance up the vine. In order to characterize the chemical constituents in DBT extract, an UHPLC-QTOF MS method was established. Pharmacognosy of Dioscorea. In this study, we proposed a screening strategy called "hepatotoxic equivalent combinatorial markers (HECMs)" for a hepatotoxic HM, Dioscorea bulbifera tuber (DBT). 1 Supporting information Constituents of Two Dioscorea Species that Potentiate Antibiotic Activity against MRSA Gugu F. Sibandze,†,§ Paul Stapleton,† and Simon Gibbons* ,†‡ † Research Department of Pharmaceutical and Biological Chemistry, UCL School of Pharmacy, University College London, 29-39 Brunswick Square London, WC1N 1AX. Chemical constituents. Dioscorea is a genus of flowering plants, and some Dioscorea species are known and used as a source for the steroidal sapogenin diosgenin. Ratalu is a … PubMed:[Studies on chemical constituents of Dioscorea … However, congeners of D. luzonensis have been studied for their chemical constituents. 1978; 16:643–644. Abstract: The anti-tumor-promoting effect was found in the 75 % ethanol extracts of the rhizomes of Dioscorea bulbifera L. using the neoplastic transformation assay of mouse epidermal JB6 cell lines. Wij M, Rangaswami S. Chemical constituents of Dioscorea bulbifera isolation and structure of a new dihydro phenanthrene 2,4,6,7, tetrahydroxy-9,10 dihydro phenanthrene and a new phenanthrene 2,4,5,6 tetra hydroxy phenanthrene. Dioscorea bulbifera yielded stigmasterol, mono-arachidin, 1,7-bis-(4-hydroxyphenyl)-1E,4E,6E-heptatrien-3-one, behenic acid, demethyl batatasin IV, using a vitrification method. chemical constituents of licorice The major active component of Licorice is saponin known as glycyrrhizin, also known as glycyrrhizic acid, which is an extremely sweet, foaming triterpene glycoside. Bulblets axillary or absent. Medicinal use. Indian J Chem. This work was supported by Beijing Nova Program (No. Dioscorea belongs to the monocotyledons, family Dioscoreaceae, subfamily Dioscoreoideae. Uses . It also contains sapogenase (enzyme), phenolic compounds and starch (75%). Chinese yam can replenish qi (vital energy), enrich yin, reinforce spleen, lung and kidney, and arrest excessive essence depletion. The constituents with antitumor-promoting activity from this plant are … Compound 8 showed moderate activity. Chemical Constituents . [Chemical constituents from fresh tubers of Dioscorea bulbifera]. It is mainly used in spleen and stomach weakness, poor appetite, diarrhea and excessive vaginal discharges. Liu Ch, Chen YY (1984) Studies on the chemical constituents of Dioscorea plants. ; They are also used against tumour. Chemical constituents: Rauwolfia contains 1.2 to 1.4 percen of total indole alkaloids, the most important of which are reserpine, deserpidine and rescinnamine. Its other constituents include resinous matter, fatty acids, unsaturated alcohols, dextrose and sucrose. Chemical constituents: Opium contains principally about 25 Isoquinoline alkaloids, the most important of which is morphine, the yield of which varies from 6 to 24 percent. 2011-CXTD-12). tubers led to the isolation of long chain alkyl trans-ferulates (1), a mixture of 1 and β-sitosterol (2), and fatty acids from the skin; and ursolic acid (3) and 600 species and is divisible into numerous sections according to stem twining, leaf morphology, inflorescences, seed wings, bulbil formation, tuber morphology and chemical content. Introduction. The considerable amount of allantoin and dioscin has been reported in different cultivated germplasm of Dioscorea species in China ( Fu et al., 2006 ; Wu et al., 2016 ). [Article in Chinese] Liu JS(1), Gao WN(1), Zheng J(1), Wang GK(1), Yang QS(1). Russell Marker developed the extraction and manufacture of hormones from D. mexicana at Syntex, starting the trade of D. composita in Mexico. It is a main source of diosgenin. The isolation of two diarylnonanoids from Dioscorea cotinifolia possessing antibiotic-potentiating activity against resistant strains of S. aureus are reported. safety, security and quality control, food and chemical toxicology and drug analysis for sustainable development. Classical categorization PubMed:Cryopreservation of plantlet nodes of Dioscorea opposita Thunb. To screen potential resource from Dioscorea species and related medicinal plants for diosgenin extraction, a rapid method to compare the contents of diosgenin in various plants is crucial. It is named by the monk Charles Plumier after the ancient Greek physician and botanist Dioscorides Dioscorea bulbifera chemical Constituents-Three furanoid norditerpenesdiosbulbins A,B,C,D,E,F,G,H; diosbulbinosides. Sigma-Aldrich offers abstracts and full-text articles by [Bing Bai, Ming-Jing Li, Yong Wang, Xiu-Hua Liu]. 2011070), Research Fund for Self-Selected Topic of Beijing University of Chinese Medicine (No. Chemical constituents Dioscorea rhizomes contain 75% of starch. It invades open to shady areas in the Eastern United States. Dioscorea septemloba (DS) is mainly used as a traditional Chinese medicine in the east and south of China for the treatment of urethral and renal infections and rheumatism. Steroidal sapogenin, diosgenin. In the present review its habit, habitat, phytochemical constituents, and pharmacological properties are discussed. Comprehensive characterization of yam tuber nutrition and medicinal quality of Dioscorea opposita and D. alata from different geographic groups in China SHAN Nan 1* , WANG Pu-tao 1*, ZHU Qiang-long 1 , SUN Jing-yu 1 , ZHANG Hong-yu 2 , LIU Xing-yue 1 , CAO Tian-xu 1, 2 , CHEN Xin 1 , HUANG Ying-jin 1, 2 , ZHOU Qing-hong 1 Dioscorea luzonensis has no reported biological activities and chemical constituents. V. Isolation and identification of esters of steroidal sapogenin from collett yam (Dioscorea collettii) rhizome. Firstly, the chemical constituents in DBT extract were globally characterized. Dioscorea polystachya is an invasive herbaceous, twining vine that grows to about 16.4 ft. (5 m). Chemical profiling of DBT extract. Compared with (-)-epicatechin, (+)-catechin exhibited much stronger inhibitory activity which suggested that chemical stereo structures of compounds affect the efficiency of inhibition. Keyword: Bioactive constituents, Dioscorea dumetorum, plant pathogens, postharvest losses Most plant diseases are caused by pathogenic microorganisms’ infections and pests’ infestation. Chin Trad Herbal Drugs 15:193–194 Google Scholar PubMed:Neuroprotective effects of Dioscorea opposita on scopolamine-induced memory impairment in in vivo behavioral tests and in vitro assays.
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