نتایج جستجو برای: gc fid
تعداد نتایج: 36940 فیلتر نتایج به سال:
With the global demand for lipid compounds on rise, concerns are growing about environmental and economic impact of traditional sources. This concern is exacerbated by ever-increasing plant-based lipids, which contributing to unsustainable production practices competition land food. Considering this challenge, work aimed at exploring potential black soldier fly larvae (BSFL) as a low-cost ecofr...
This study investigated the chemical composition, and antimicrobial activity against food-borne pathogens of essential oil isolated from heartwood Calocedrus formosana Taiwan. The oil, by hydrodistillation in a Clevenger-type apparatus, was characterized using GC–FID GC–MS. major constituents were τ-muurolol (16.1%), α-cadinol (11.1%), α-terpineol (10.6%), thymol (8.5%), β-thujaplicin (4.5%). d...
mnco2o4 (mno-co2o3) nanocomposite as a binary oxide has been successfully prepared by precipitation method using cobalt nitrate and manganese nitrate as the precursors and then characterized by scanning electron microscopy-energy dispersive micro-analysis (sem-edx) and x-ray diffraction (xrd) techniques. in this work, we report the hydrolysis kinetics reactions of semi mustard (chloroethyl ethy...
cablin (BLANCO) BENTH. (Family Labiatae), commonly known as “Guang-Huo-Xiang” or Cablin Patchouli. It is a Chinese Materia Medica traditionally used for the treatment of common cold, nausea and diarrhea. Patchouli oil, the volatile oil of P. cablin, has been widely used in the cosmetic and oral hygiene industries to scent perfumes, flavor toothpaste, etc. Modern researches have repeatedly demon...
The samples of Satureja subspicata Vis. honey were confirmed to be unifloral by melissopalynological analysis with the characteristic pollen share from 36% to 71%. Bioprospecting of the samples was performed by HPLC-DAD, GC-FID/MS, and UV/VIS. Prephenate derivatives were shown to be dominant by the HPLC-DAD analysis, particularly phenylalanine (167.8 mg/kg) and methyl syringate (MSYR, 114.1 mg/...
Abstract Teprenone is a therapeutic anti-ulcer agent developed in Japan. As described the Japanese Pharmacopoeia (JP) 17th Edition, gas chromatography/hydrogen flame ionization detection (GC/FID) and high-performance liquid chromatography/ultraviolet (HPLC/UV) have been used for assay of active pharmaceutical ingredients (APIs) teprenone capsules, respectively. The critical aspect separation st...
This study will demonstrate the conversion of stearic acid to methyl stearate (biodiesel) using for first time crosslinked amidoximated polyacrylonitrile ion-exchanged mesh protonated by sulphuric acid. Quantitative analysis was GC-FID, 1H NMR and ATR-FT-IR with GC-FID most reliable. A molar ratio methanol 35.5: 1 gave 94 % ester at 90 °C. At 65 °C a greater 87.1:1 94.1 comparable 98 yield obta...
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