1978; 16:643–644. Sigma-Aldrich offers abstracts and full-text articles by [Bing Bai, Ming-Jing Li, Yong Wang, Xiu-Hua Liu]. 5 Marks. safety, security and quality control, food and chemical toxicology and drug analysis for sustainable development. The main constituents of dioscorea are diosgenin, a steroidal sapogenin (4 to 6%) and its glycosides, Smilagenin and β-isomer yammogenin. It is named by the monk Charles Plumier after the ancient Greek physician and botanist Dioscorides Introduction. 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. Both … The isolation of two diarylnonanoids from Dioscorea cotinifolia possessing antibiotic-potentiating activity against resistant strains of S. aureus are reported. Dioscorea is a genus of flowering plants, and some Dioscorea species are known and used as a source for the steroidal sapogenin diosgenin. Indian J Chem. Morphological characteristics. Dioscorea luzonensis has no reported biological activities and chemical constituents. Therapeutic uses. Its other constituents include resinous matter, fatty acids, unsaturated alcohols, dextrose and sucrose. Medicinal use. Leaves alternate or opposite, petiolate, simple or palmately compound, basal veins 3--9. Russell Marker developed the extraction and manufacture of hormones from D. mexicana at Syntex, starting the trade of D. composita in Mexico. 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. ; They are also used against tumour. It has a similar structure and activity as the adrenal steroids. They are non-edible, due to their very bitter taste. AIM To study the chemical constituents of Dioscorea parviflora. Chemical constituents. Rootstock rhizomatous or tuberous, variable in color, shape, chemical constituents, and depth in ground. 2011070), Research Fund for Self-Selected Topic of Beijing University of Chinese Medicine (No. 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. The roots contain diosgenin (4–6%) a steroidal sapogenin and its glycoside smilagenin, epismilagenin and beta isomer yammogenin. Ratalu is a … It also contains sapogenase (enzyme), phenolic compounds and starch (75%). Chemical constituents. The diarylnonanoids are a class of natural products similar in structure to the diarylheptanoids, which have a wide spectrum of reported biological activities. In order to characterize the chemical constituents in DBT extract, an UHPLC-QTOF MS method was established. In the present review its habit, habitat, phytochemical constituents, and pharmacological properties are discussed. Classical categorization Allantoin and dioscin are also well known active constituents from tubers of Dioscorea species (Wei et al., 2013). [Chemical constituents from fresh tubers of Dioscorea bulbifera]. Keyword: Bioactive constituents, Dioscorea dumetorum, plant pathogens, postharvest losses Most plant diseases are caused by pathogenic microorganisms’ infections and pests’ infestation. 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. 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. 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 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. Chemical constituents Dioscorea rhizomes contain 75% of starch. 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. Dioscorea Structure of dioscin ( diosgenin + glycone part ) 10. However, congeners of D. luzonensis have been studied for their chemical constituents. [Article in Chinese] Liu JS(1), Gao WN(1), Zheng J(1), Wang GK(1), Yang QS(1). Bulblets axillary or absent. PubMed:[Studies on chemical constituents of Dioscorea … Chemical profiling of DBT extract. Compound 8 showed moderate activity. Dioscorea polystachya is an invasive herbaceous, twining vine that grows to about 16.4 ft. (5 m). Corms of Dioscorea bulbifera are aphrodisiac, tonic, and used for treating sore throat, boils and swellings, dysentery, piles, and syphilis. (Eleazu et al, 2013). Dioscorea belongs to the monocotyledons, family Dioscoreaceae, subfamily Dioscoreoideae. It is a main source of diosgenin. It comprises ca. 2011-CXTD-12). It invades open to shady areas in the Eastern United States. Steroidal sapogenin, diosgenin. 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. Foliage The leaves are alternate proximally but can become opposite as they advance up the vine. 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. Dioscorea bulbifera yielded stigmasterol, mono-arachidin, 1,7-bis-(4-hydroxyphenyl)-1E,4E,6E-heptatrien-3-one, behenic acid, demethyl batatasin IV, 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. It is a source of diosgenin, which is used to prepare synthetic hormones such as progesterone and cortisone. 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). 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. Rhizomes also contain an enzyme sapogenase. This work was supported by Beijing Nova Program (No. Dioscorea bulbifera – plant in flowering. PubMed:Neuroprotective effects of Dioscorea opposita on scopolamine-induced memory impairment in in vivo behavioral tests and in vitro assays. Chemical constituents: Rauwolfia contains 1.2 to 1.4 percen of total indole alkaloids, the most important of which are reserpine, deserpidine and rescinnamine. 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. It is mainly used in spleen and stomach weakness, poor appetite, diarrhea and excessive vaginal discharges. Compared with (-)-epicatechin, (+)-catechin exhibited much stronger inhibitory activity which suggested that chemical stereo structures of compounds affect the efficiency of inhibition. The constituents with antitumor-promoting activity from this plant are … Dioscorea Chemical Constituents :- • Dioscin (major glycoside) • Diosgenin (aglycone) • Smilagenin • Epi smilagenin • β – Yammogenin • Starch • sapogenase 9. PubMed:Cryopreservation of plantlet nodes of Dioscorea opposita Thunb. Chemical investigation of the dichloromethane extracts of Dioscorea luzonensis Schauer. Pharmacognosy of Dioscorea. Liu Ch, Chen YY (1984) Studies on the chemical constituents of Dioscorea plants. Dioscorea bulbifera is also called Air potato it belongs to yam species. 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 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 ). Author information: (1)School of Pharmacy, Anhui University of Chinese Medicine & Anhui Key Laboratory for Modern Chinese Materia Medica, Hefei 230012, China. Diosgenin extracted from Dioscorea composita was instrumental in the development of the … 600 species and is divisible into numerous sections according to stem twining, leaf morphology, inflorescences, seed wings, bulbil formation, tuber morphology and chemical content. using a vitrification method. JYB22-XS033), and Innovative Research Team of Beijing University of Chinese Medicine (No. Chemical Constituents . Firstly, the chemical constituents in DBT extract were globally characterized. Uses . Dioscorea bulbifera chemical Constituents-Three furanoid norditerpenesdiosbulbins A,B,C,D,E,F,G,H; diosbulbinosides. 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 In this study, we proposed a screening strategy called "hepatotoxic equivalent combinatorial markers (HECMs)" for a hepatotoxic HM, Dioscorea bulbifera tuber (DBT). Chin Trad Herbal Drugs 15:193–194 Google Scholar V. Isolation and identification of esters of steroidal sapogenin from collett yam (Dioscorea collettii) rhizome. Chinese yam can replenish qi (vital energy), enrich yin, reinforce spleen, lung and kidney, and arrest excessive essence depletion. The vast majority of the species are tropical, with only a few species extending into temperate climates.
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