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: methanol (99.9%, Sigma-Aldrich, Germany), FeCl 3 (97%, Sigma-Aldrich, Germany), TPTZ 2,4,6-tri(2-pyridyl-1,3,5-triazine) (99%, Acros Organics, China), 35% HCl (p.a., Ing. Petr Švec - PENTA, Czech Republic), CH 3 COONa (p.a., Ing. Petr Švec - PENTA, Czech

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differences might be ascribed to differences in the chemical composition of these extracts and in the sensitivity of the tested bacteria. Table 2. Antibacterial activity of methanol extracts of the immature and mature faba bean seeds Vicia faba seeds Zone of

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was prepared by dissolving 100 mg of coumarin standard (Serva, Germany) in 80% methanol and adjusting the final volume to 100 ml (1.0 mg ml -1 ). Seven dilutions of coumarin with concentrations ranging from 0.005-0.5000 mg ml -1 were prepared and

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citrate, chloroform, acetone, toluene, acetic acid, potassium hydroxide, trichloroacetic acid, methanol, acetonitrile, and tetrahydrofuran were purchased from Kelon Chemical Reagent Factory, Chengdu, China. The standards of glutamic acid (Glu), aspartic

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Frozen and dehydrofrozen quince sample extracts were obtained by methanol extraction and stored at 4 °C ( Hajji et al., 2020 ). Total polyphenol content (TPC) was determined by the Folin–Ciocalteu method using gallic acid as the reference compound, and

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Acta Alimentaria
Authors: Cs. Dobolyi, K. Inotai, I. Bata-Vidács, D. Sárkány, O. Csernus, S. Kocsubé, B. Tóth, A. Szekeres, and J. Kukolya

2 mL dichloromethane. The extracts were stored at −20 °C until analysis. To each culture flasks containing corn grit samples 20 mL methanol was added and the mixtures were transferred into a Stomacher bag. The samples were homogenised for 45 s in a

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dissolved in isooctane, and ester derivative was prepared with 2M KOH in methanol and neutralized with NaHSO 4 . The analysis of fatty acid methyl-esters were performed by GC-MS (Shimadzu, 2010; Supleco-wax column). FAME-mix and Grain-mix standards were used

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