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;

      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
      128 002
      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,

      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
      128 005
      Quaternion-based parallel feature extraction: Extending the horizon of quantitative analysis using TLC-SERS sensing
      Y. ZHAO (Zhao Yong), A. TAN (Tan Ailing), K. SQUIRE, K. SIVASHANMUGAN, A. WANG (Wang Alan)* (*School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR, 97331, USA,

      Sens. Actuators. B. Chem. 299, 126902 (2019). TLC-surface-enhanced Raman scattering (TLC-SERS) of melamine contaminated milk samples on silica gel with acetone - chloroform - ammonia 14:1:4. Then 2 μL gold nanoparticle were drop onto the analyte spot. Quantification using a Raman microscope equipped with a CCD detector to acquire the surface-enhanced Raman scattering spectra. Excitation wavelength was 785 nm. A parallel representation model of the triple-spectral data was constructed using a pure quaternion matrix. Quaternion principal component analysis (QPCA) was utilized for feature extraction and followed by feature crossing between the quaternion principal components to obtain final fusion of spectral feature vectors.

      Classification: 4e
      128 006
      Simultaneous colorimetric sensing of malachite & leucomalachite green in aquatic products based on novel ionic associate self-visualization HPTLC strips
      J. SONG*, S. LAY, D. WANG, X. WU, Y. ZHANG, L. PANG, T. CHAI, J. ZHAO, X. WANG (*School of Agriculture and Food Science, Zhejiang A & F University, Hangzhou 311300, People’s Republic of China,

      Sens. Actuators. B. Chem. 325, 128753 (2020). Leucomalachite green (1) and malachite green (2) and certain amount of highly dispersed potassium iodate titanium dioxide composites (0.1 M titanium butoxide was used as a precursor with 5 % potassium iodate solution to prepare KIO3-doped TiO2 nanoparticles). The sample was developed with chloroform - methanol 4:5. Detection by dipping into 5 % potassium iodine, followed by heating and then dipping into a zinc ion solution followed by heating at 80 °C. Linearity was in the range of 0.3–8.0 μg/mL for (1) and 0.1–4.0 μg/mL for (2), respectively. LOD and LOQ were 1.7 and 5.2 μg/kg for (1) and 0.9 and 2.7 μg/kg for (2), respectively.

      Classification: 28a
      128 085
      (Progress in the application of the technique of thin-layer chromatography (TLC) combined with surface-enhanced Raman scattering spectroscopy (SERS) (Chinese)
      ZH. SHEN (Shen Zhengdong), X. KONG (Kong Xianming)*, Q. YU (Yu Qing), ZH. YANG (Yang Zhanxu) (*Sch. of Petrochem. Engin., Liaoning Petrochem. Univ., Fushun 113001, Liaoning, China, xmkong@lnpu. edu. Cn)

      J. Spectroscopy & Spectral Anal. 41 (2), 388-394 (2021). SERS, as a fast and sensitive analytical technology, is widely employed in the fields of analytical chemistry, environmental detection and food safety. However, the real-life samples are mostly mixtures, and an accurate determination of the analytes in complex samples cannot be performed directly by using SERS. TLC as a separation technique is easy to operate, low cost, fast and high-throughput, and has been widely used in the fields of synthetic chemistry, analytical chemistry, medicinal chemistry, and food science. Further, the zones isolated by TLC are first visualized using iodine vapor coloring or fluorescence, and then combined with SERS for efficient qualification and quantitation of the zones of interest. Therefore, the technology of TLC combined with SERS (TLC/SERS) suits rightly for determination of various kinds of complex samples. Moreover, due to the small sample size and the relatively simplicity of the experimental equipment used, it is also suitable for the rapid field screening and detection of relatively complex samples. Introduction of the enhancement mechanism of SERS and the preparation of the active substrate, and demonstration of the broad prospects of TLC/SERS application in the fields of environmental pollutant analysis, food safety monitoring, traditional Chinese medicine and biomedicine identification etc by providing a set of successful application examples.


      Classification: 4
      128 029
      Identification of type B trichothecenes and zearalenone in Chilean cereals by planar chromatography coupled to mass spectroscopy
      D. JORQUERA, J. PAVON, Gisela RIOS* (*Interdisciplinary Research Laboratory in Mycotoxins, Department of Food Sciences and Technology, Faculty of Pharmacy, University of Concepcion, Barrio Universitario s/n, Concepcion, Chile,

      Food Addit Contam Part A. 38, 1778-1787 (2021). HPTLC of deoxynivalenol (1), 3-acetyldeoxynivalenol (2), 15-acetyldeoxynivalenol (3), zearalenone (4) and nivalenol (5) in Chilean cereals on silica gel with toluene - ethyl acetate - formic acid 1:8:1. Detection by dipping into a solution of 10 % aluminium trichloride in 50% methanol, followed by heating at 120 °C for 15 min. Quantitative determination by absorbance measurement at 366 nm. The hRF values for (1) to (6) were 39, 50, 45, 60 and 20, respectively. Linearity was between 20 and 160 ng/zone for (1) to (5). The LOD and LOQ were 120 and 160 µg/Kg for (1), 120 and 200 µg/kg for (2) and (3), 80 and 120 µg/kg for (4) and 120 and 160 µg/kg for (5), respectively. Recovery was between 88.6 and 111.5 % for (1), 93.6 and 108.3 % for (2), 91.0 and 111.0 % for (3), 84.3 and 114.2 % for (4) and 86.0 and 112.5 % for (5).

      Classification: 28b
      128 030
      Detection of edible insect derived phospholipids with polyunsaturated fatty acids by thin-layer chromatography, gas chromatography, and enzymatic methods
      M. OCHIAI*, Y. KOMIYA (*Laboratory of Animal and Human Nutritional Physiology, School of Veterinary Medicine, Kitasato University, Higashi 23-35-1 Towada, Aomori, 034-8628, Japan,

      J. Food Compos. Anal. 99, 103869 (2021). HPTLC of phosphatidylcholine (1), phosphatidylethanolamine (2), phosphatidylserine (3), lysophosphatidylcholine (4), and cardiolipin (5) in edible insects (crickets, migratory locusts, and silkworms) on silica gel with chloroform - methanol - 28 % ammonia 13:7:1. Detection by exposure to iodine. The hRF values for (1) to (5) were 24, 51, 13, 15 and 70, respectively. 

      Classification: 11c
      128 031
      Caryatin and 3’-O-methylcaryatin contents in edible yams (Dioscorea spp.)
      B. FEL, A. BAUDOUIN, F. FACHE, S. CZARNES, V. LEBOT, L. LEGENDRE* (*University of Lyon, Laboratory of Microbial Ecology, 43 boulevard du 11 novembre 1918, 69622 Villeurbanne Cedex 2, France, ()

      J. Food Compos. Anal. 102, 104010 (2021). HPTLC of caryatin (1) and 3′-O-methycaryatin (2) in yam landraces covering eight staple food species (Dioscorea spp) on silica gel with toluene - ethyl acetate - formic acid 4:6:1. Detection by spraying with NP reagent. Quantitative determination by absorbance measurement at 366 nm.  

      Classification: 7