Cumulative CAMAG Bibliography Service CCBS

Our CCBS database includes more than 11,000 abstracts of publications. Perform your own detailed search of TLC/HPTLC literature and find relevant information.

The Cumulative CAMAG Bibliography Service CCBS contains all abstracts of CBS issues beginning with CBS 51. The database is updated after the publication of every other CBS edition. Currently the Cumulative CAMAG Bibliography Service includes more than 11'000 abstracts of publications between 1983 and today. With the online version you can perform your own detailed TLC/HPTLC literature search:

  • Full text search: Enter a keyword, e.g. an author's name, a substance, a technique, a reagent or a term and see all related publications
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Registered users can create a tailor made PDF of selected articles throughout CCBS search – simply use the cart icon on the right hand of each abstract to create your individual selection of abstracts. The saved items can be printed to PDF using the print function of your web browser.

      126 020
      New hirsutinolide-type sesquiterpenoids from Vernonia cinerea inhibit nitric oxide production in LPS-stimulated RAW264.7 cells
      Li-Ming YANG KUO, Pei-Yi TSENG, Yu-Chi LIN, Chia-Ching LIAW, Li-Jie ZHANG, Keng-Chang TSAI, Zhi-Hu LIN, Hsiu-O HO*, Yao-Haur KUO (*School of Pharmacy, Taipei Medical University, Taipei, Taiwan; hsiuoho@tmu.edu.tw)

      Planta Med. 84(18), 1348-1354 (2018). A subfraction (obtained through liquid-liquid partition and column chromatography) of the ethanolic extract of whole Vernonia cinerea plants (Asteraceae, subf. Cichorioideae) was further fractioned by reverse-phase SPE (solid-phase extraction) followed by preparative TLC on silica gel layer (eluent not given). For verification, zones were detected by spraying with anisaldehyde solution with 10 % sulfuric acid, followed by heating at 100 °C. Further purification by reverse-phase HPLC allowed the isolation of 6 hirsutinolide-type sesquiterpenoids (all with a oxacyclonane forming an ether bridge), including vernolides A and B.

      Classification: 8b, 9, 15a, 32e
      126 019
      Anti-inflammatory four new 2-(2-phenylethyl)-4H-chromen-4-one derivatives from the resinous wood of Aquilaria sinensis and their inhibitory activities on neutrophil pro-inflammatory responses
      S. WANG (Wang Sin-Ling), H. LIAO (Liao Hsiang-Ruei), M. CHENG (Cheng Ming-Jen), C. SHU (Shu Chih-Wen), C. CHEN (Chen Chun-Lin), M. CHUNG (Chung Mei-Ing)*, J. CHEN (Chen Jih-Jung) (*School of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan; meinch@kmu.edu.tw)

      Planta Med. 84(18), 1340-1347 (2018). Preparative TLC on silica gel for the final purification of 15 phenylethyl-chromenone derivatives (including 3 with epoxide functions), 4 sesquiterpenoids (neopetasane, dehydrokaranone, dioxoselinene, ligudicin C) and a steroid (ergostatetraenone), all isolated through multi-step column chromatography from the ethyl-acetate fraction of a methanolic extract of Aquilaria sinensis resinous wood (Thymelaeaceae). For each compound, mobile phase, RF value and yield are given.

      Classification: 8b, 9, 15a, 32e
      125 034
      Bioprofiling of Mexican Plectranthus amboinicus (Lour.) essential oil via planar chromatography–effect-directed analysis combined with direct analysis in real time high-resolution mass spectrometry
      A. BAÑUELOS-HERNANDEZ, E. AZADNIYA, E. RAMIREZ, Gertrud MORLOCK* (Institute of Nutritional Science, and TransMIT Center for Effect-Directed Analysis, Justus Liebig University Giessen, Giessen 35390, Germany, Gertrud.Morlock@uni-giessen.de)

      J. Liq. Chromatogr. Relat. Technol. 43, 344-350 (2020). HPTLC of hydrodistilled Plectranthus amboinicus essential oil on silica gel with n-hexane - ethyl acetate - ethanol 95:3:2. Detection by dipping into anisaldehyde sulfuric acid reagent, followed by heating at 100 ºC for 5 min. HPTLC-bioprofiling was performed using the following assays by dipping the chromatogram into the respective solution, followed by drying, incubation and documentation at white light or measuring bioluminescence: DPPH* radical reagent assay (using a 0.2 mg/mL 2,2-diphenyl-1-picrylhydrazyl solution in methanol), AChE inhibitory assay, tyrosinase inhibitory assay, alpha- and beta-glucosidase inhibitory assays, alpha-amylase inhibitory assay, Gram-negative antimicrobial bioassay (chromatogram immersion into a A. fischeri suspension), and Gram-positive antimicrobial bioassay (chromatogram immersion into a B. subtilis bacterial suspension). Direct analysis in real time mass spectrometry allowed the detection of five bioactive compounds: caryophyllene oxide (hRF 20), a-humulene (hRF 26), carvacrol (hRF 40), methyl carvacrol ether (hRF 76) and caryophyllene (hRF 84).

      Classification: 4e, 15a
      125 014
      New tirucallane-type triterpenoids from Guarea guidonia
      V. HERNANDEZ, M. DE LEO, R. COTUGNO, A. BRACA, Nunziata DE TOMMASI*, L. SEVERINO (*Department of Pharmacy, University of Salerno, Fisciano, Italy; detommasi@unisa.it)

      Planta Medica 84(9/10), 716-720 (2018). The fractionations of n-hexane and chloroform extracts of Guarea guidonia aerial parts (Meliaceae) through silica gel column chromatography was monitored on TLC silica gel with cerium sulfate / sulfuric acid as derivatization reagent. In the fractions obtained, 3 new tirucallane-type triterpenoids (guareolide, guareoic acids A and B) were further identified, as well as other terpenoids (flindissone, acetyldihydronomilin, picroquassin E, boscartol C, and acneorubins A, B, and X).

      Classification: 15a, 32e
      125 015
      Bioactive segetane, ingenane, and jatrophane diterpenes from Euphorbia taurinensis
      D. RÉDEI, N. KÚSZ, G. SÁTORI, A. KINCSES, G. SPENGLER, K. BURIÁN, Z. BARINA, Judit HOHMANN* (*Department of Pharmacognosy, University of Szeged, Szeged, Hungary; hohmann@pharm.u-szeged.hu)

      Planta Medica 84(9/10), 729-735 (2018). The chloroform fraction of a methanolic extract of Euphorbia taurinensis whole plant (Euphorbiaceae) was submitted to a multi-step fractionation through column chromatography. Monitoring by TLC on silica gel (mobile phases see below) followed by derivatization with concentrated sulfuric acid and heating at 105°C. The fractions obtained were purified by repeated cycles of preparative TLC alone or alternating with preparative HPLC, leading to the isolation of segetane, ingenane, and jatrophane diterpenes. Depending on the subfractions, preparative TLC silica gel and reverse-phase C18 layers were used, with cyclohexane – ethyl acetate – ethanol 25:15:1 for normal phase, and with mixtures of acetonitrile (or methanol) and water for RP.

      Classification: 15a, 32e
      124 002
      Three new abietane-type diterpenoids from Plectranthus africanus and their antibacterial activities
      R.T. NZOGONG, B.K. NGANOU, A.T. TEDONKEU, M.D. AWOUAFACK, M. TENE*, T. ITO, P. TANE, H. MORITA** (*Laboratory of Natural Products Chemistry, Department of Chemistry, Faculty of Science, University of Dschang, Dschang, Cameroon; ** Institute of Natural Medicine, University of Toyama, Toyama, Japan; * mtene2001@yahoo.fr; ** hmorita@inm.u-toyama.ac.jp)

      Planta Medica 84(1), 59-64 (2018). A multi-step fractionation through silica gel column chromatography (CC) of a methanolic extract of Plectranthus africanus (whole plant, Lamiaceae) was monitored through TLC on silica gel with various solvent mixtures (n-hexane or dichloromethane with either acetone or methanol). Zones were detected under UV and further by spraying with sulfuric acid 20 % and heating at 100°C. For each fraction or TLC profile, the authors provide the CC gradient, the optimal proportions of the solvents used for the TLC mobile phase, as well as the RF values of the molecules isolated by this CC method: new abietane-type diterpenoids (plectranthroyleanones A, B, C), betulinic and oleanolic acids, heterosides of apigenin, rhamnetin and sitosterol.

      Keywords: herbal
      Classification: 8a, 14, 15a, 32e
      124 025
      Detection of antibacterial and antioxidant compounds in the essential oil of Schizonepeta annua (Pall.) Schischk. using high-performance thin-layer chromatography–direct bioautography and gas chromatography–quadrupole time-of-flight mass spectrometry
      Z. LI, X. BAI, Q. MA, H. AISA*, M. MAIWULANJIANG (*State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China, haji@ms.xjb.ac.cn)

      J. Planar Chromatogr. 32, 359-364 (2019). HPTLC of Schizonepeta annua on silica gel with chloroform - toluene - acetic acid 600:100:3. Detection by spraying with 5 % vanillin - sulfuric acid reagent (mixture of 2.5 g vanillin, 45 mL ethanol, and 5 mL concentrated sulfuric acid), followed by heating at 105 °C for 5 min. Antibacterial assay was performed by dipping the plate into a cell suspension culture (Brain heart infusion broth and brain heart infusion agar in the ratio of 9:1), followed by incubation at 35 °C for 16 h and immersion into 0.2 % MTT solution for 3s, followed by incubation at 35 °C for 3h. Plates were scanned at 546 nm. The hRF values for thymol and carvacol were 88 and 78, respectively.

      Classification: 15a
      123 011
      Terpenoids from leaves of Guarea macrophylla display in vitro cytotoxic activity and induce apoptosis in melanoma cells
      Geanne Alexandra A. CONSERVA, N. GIROLA, C.R. FIGUEIREDO, R.A. AZEVEDO, S. MOUSDELL, P. SARTORELLI, M.G. SOARES, G.M. ANTAR, J.H.G. LAGO* (*Centre of Natural and Human Sciences, Federal University of the ABC, Santo-André, State of São Paulo, Brazil; joao.lago@ufabc.edu.br)

      Planta Med. 83(16), 1289-1296 (2017). A cycloartene-diol, a dihydroxycicloartenone and an isopimaradiene-diol were isolated from subfractions of an ethanolic extract of Guarea macrophylla (Meliaceae) leaves through elution on preparative TLC silica gel layers with chloroform – acetone 19:1, or with n-hexane – ethyl acetate 9:1 or 1:1, respectively.

      Classification: 15a, 32e