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:

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      128 089
      Effect-directed profiling of 32 vanilla products, characterization of multi-potent compounds and quantification of vanillin and ethylvanillin
      Gertrud E. MORLOCK*, M. BUSSO, S. TOMEBA, A. SIGHICELLI (*Institute of Nutritional Science, and TransMIT Center for Effect-Directed Analysis, Justus Liebig University Giessen, Giessen, Germany; gertrud.morlock@uni-giessen.de)

      J Chromatogr. A, 1652, 462377 (2021). Samples were vanilla tinctures, water − ethanol − ethyl acetate 1:1:1 extracts of vanilla-flavored food products and of natural Vanilla sp. (Orchidaceae) pods, oleoresin, paste and powders, as well as calibration standards of vanillin (1) and ethylvanillin (2). HPTLC on silica gel with n-hexane – ethyl acetate 1:1 for profiling, 3:2 for quantification. Other mobile phases were also tested and given in the supplement. Compounds (1) and (2) (hRF 68 and 82, respectively) were quantified by absorbance densitometry (at maximal wavelength 310 nm, deuterium lamp, scanning speed 10mm/s). Contents were found to be between 1 μg/g and 36 mg/g for (1) and null for (2) except in one tincture (62 µg/mL). Derivatizations performed for five assays: A) to detect radical scavengers, immersion (speed 3 cm/s, time 5 s) into DPPH• (0.5 mM in methanol), followed by drying for 90 s at room temperature and 30 s at 60 °C; B) to detect activity against Gram-negative bacteria, immersion (speed 2 cm/s, time 3 s) into Aliivibrio fischeri suspension, followed by recording the bioluminescence; C) to detect activity against Gram-positive bacteria, immersion (speed 3.5 cm/s, time 6 s) into Bacillus subtilis, followed by incubation 2 h at 37 °C, immersion in MTT solution, incubation for 30 min at 37 °C and heating for 5 min at 50 °C; D) to detect acetylcholinesterase (AChE) inhibitors, immersion (speed 2.5 cm/s, time 2 s) into AChE solution (666 units in TRIS buffer 0.05M, with bovine serum albumin 0.1 %, pH 7.8), incubation for 25 min at 37 °C and immersion into substrate solution (α-naphthyl acetate 0.1 % and Fast Blue salt B 0.18 % in ethanol – water, 1:2; E) to detect tyrosinase inhibitors, spraying with enzyme solution (400 unit/mL, in phosphate buffer 0.02 M, pH 6.8), followed by 2 min drying, immersion into substrate levodopa (18 mM in phosphate buffer, pH 6.8), 10 min incubation at room temperature and drying. For identification, zones of interest were transferred with methanol from underivatized HPTLC layer through a TLC-MS interface and a filter frit directly to a Quadrupole-Orbitrap MS (heated electrospray ionization, probe heater at 270°C, spray voltage 3.5kV, lock masses acetic acid for negative, dibutyl phthalate for positive ionization, mode full HR-MS scan in m/z range 50–750). Afterwards, the following substances assigned by MS were confirmed by using HPTLC comparison with standards: (1) and (2), vanillyl alcohol, vanillic acid, ethyl vanillyl ether, coumarin, 4-hydroxybenzoic acid, 4-methoxybenzoic acid, 4-hydroxybenzaldehyde, 4-allyl benzoic acid, oleamide, triacetin.

      Classification: 4e, 7, 8b, 32e
      128 056
      A validated quantification of gallic acid and ellagic acid in Triphala using a high‑performance thin‑layer chromatography method
      R. PALLAVI*, S. JHA (*Department of Pharmaceutical Sciences, Birla Institute of Technology, Ranchi, Jharkhand, India, ajaypallavi@gmail.com)

      J. Planar Chromatogr. 34, 447-453 (2021). HPTLC of gallic acid (1) and ellagic acid (2) in Triphala on silica gel with toluene - ethyl acetate - formic acid - methanol 15:15:5:1. Quantitative determination by absorbance measurement at 254 nm. The hRF values for (1) and (2) were 35 and 28, respectively. Linearity was between 200 and 2000 ng/zone for (1) and 50 and 400 ng/zone for (2). LOD and LOQ were 200 and 606 ng/zone for (1) and 50 and 151 ng/zone for (2), respectively. Intermediate precisions were below 2 % (n=3). Average recovery was 98.6 % for (1) and 99.1 % for (2).

      Classification: 7
      128 060
      A validated high‑performance thin‑layer chromatography method for the determination of two bioactive lignans, phyllanthin and hypophyllanthin, in the seasonal variation study of Phyllanthus amarus
      S. KHATOON*, S. IRSHAD (*Pharmacognosy Division, CSIR-National Botanical Research Institute, Post Box No. 436, Rana Pratap Marg, Lucknow 226001, India, sayyadak@gmail.com)

      J. Planar Chromatogr. 34, 427-435 (2021). HPTLC of phyllanthin (1) and hypophyllanthin (2) in Phyllanthus amarus on silica gel with toluene - ethyl acetate 17:3. Quantitative determination by absorbance measurement at 254 nm. The hRF values for (1) and (2) were 21 and 35, respectively. Linearity was between 2 ans 7 μg/zone for (1) and (2). LOD and LOQ were 1 and 3 μg/zone for (1) and (2), respectively. Intermediate precisions were below 2 % (n=3).

      Classification: 7
      128 062
      Quantitative phytochemical and chromatographic analysis of phenolic compounds in methanolic leaf extract of Costus pictus D. Don
      G. DEVI (Department of Botany, Bangalore University, Bangalore, Karnataka, India, radha.kle@gmail.com)

      J. Planar Chromatogr. 34, 437-446 (2021). HPTLC of phenolic compounds in the leaf extract of Costus pictus on silica gel with chloroform - glacial acetic acid - methanol - water 16:8:3:2. Compounds with the same hRF values were analyzed by high-performance liquid chromatography, diode array detector and tandem mass spectrometry.

      Classification: 7
      128 067
      Densitometric high‑performance thin‑layer chromatographic fingerprinting method for the determination and quantification of plumbagin in Plumbago zeylanica L. roots
      P. KUSHWAHA*, B. SHUKLA, J. DWIVEDI, S. SAXENA (*Faculty of Pharmacy, Integral University, Lucknow, India, poonam.kushwaha083@gmail.com)

      J. Planar Chromatogr. 34, 323-328 (2021). HPTLC of plumbagin in the roots of Plumbago zeylanica on silica gel with toluene - ethyl acetate 9:2. Quantitative determination by absorbance measurement at 270 nm. The hRF value for plumbagin was 84. Linearity was between 100 and 600 ng/zone. LOD and LOQ were 70 and 200 ng/zone, respectively. Intermediate precisions were below 2 % (n=3). Average recovery was 98.8 %.

      Classification: 7
      128 075
      Determination of four kinds of hydroxynaphthoquinone ingredients in the root of Arnebia euchroma (Royle) Johnst. from different batches in Xinjiang Province by using high‑performance thin‑layer chromatography
      Y. PU (Pu Yiping), M. LI (Li Min), F. XU (Xu Fang), Y. KANG (Kang Yingying), J. LI (Li Jianguang)* (*College of Pharmacy, Xinjiang Medical University, Urumqi 830011, Xinjiang, China, xjykdx_ljg@163.com)

      J. Planar Chromatogr. 34, 297-305 (2021). HPTLC of four kinds of hydroxynaphthoquinone ingredients, namely β-hydroxyisovaleryl shikonin (1), L-shikonin (2), β-acetoxyisovaleryl shikonin (3), and acetyl shikonin (4) in the roots of Arnebia euchroma on silica gel with cyclohexane - dichloromethane - ethyl acetate - formic acid 50:90:6:11. Quantitative determination by absorbance measurement at 520 nm. The hRF values for (1) to (4) were 20, 30, 50 and 60, respectively. Linearity was between 56 and 678 ng/zone for (1), 64 and 768 ng/zone for (2), 132 and 1590 ng/zone for (3) and 253 and 3042 ng/zone for (4). Intermediate precisions were below 3 % (n=3). Average recovery was 99.5 % for (1), 100.6 % for (2), 98.6 % for (3) and 97.0 % for (4).

      Classification: 7
      128 002
      Assessment of nutritional value and quantitative analysis of bioactive phytochemicals through targeted LC-MS/MS method in selected scented and pigmented rice varietals
      P. CHOUDHURY, K. DUTTA, A. SINGH, D. MALAKAR, M. PILLAI, N. TALUKDAR, S. SAMANTHA*, R. DEVI (*Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati, Assam 781035, India, sumansamanta699@gmail.com)

      J. Food Sci. 85, 1781-1792 (2020). HPTLC of scented (joha) rice and black rice variety on silica gel with chloroform - methanol 19:1 + 0.1 % formic acid and butanol - acetic acid - water 4:1:5. Detection by spraying with p-anisaldehyde and visualization under UV light at 200, 250 and 350 nm. The husk of the selected rice varieties contained the nonpolar metabolites whereas the seeds contain nonpolar as well as polar metabolites.

      Classification: 7, 27
      128 021
      Nephroprotective potential of Anogeissus latifolia Roxb. (Dhava) against gentamicin-induced nephrotoxicity in rats
      V. SHARMA*, A. KAUSHIK, Y. DEY, B. SRIVASTAVA, M. WANJARI, S. PAWAR, S. CHOUGULE (*Department of Pharmaceutical Sciences, IFTM University, Moradabad, 244102, U.P, India, vikas.a.sharma08@gmail.com)

      J. Ethnopharmacol. 275, 114054 (2021). HPTLC of ellagic acid in Anogeissus latifolia on silica gel with toluene - ethyl acetate - formic acid 20:5:1. Detection by spraying with anisaldehyde - sulphuric acid reagent, followed by heating at 105 °C. The hRF value for ellagic acid was 38.

      Classification: 7