Showing 1 - 11 results of 11 for search '"analytical chemist"', query time: 0.05s Refine Results
  1. 1

    Magnetic Solid Phase Extraction as a Promising Technique for Fast Separation of Metallic Nanoparticles and Their Ionic Species: A Review of Recent Advances by Ingrid Hagarová

    Published 2020-01-01
    “…The results presented herein show the great analytical potential of MSPE procedures in connection with spectrometric methods used in these fields and can be helpful in guiding analytical chemists who aim to work on this subject.…”
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  2. 2

    Evaluation of the Starch Quantification Methods of Musa paradisiaca, Manihot esculenta, and Dioscorea trífida Using Factorial Experiments by J. J. Lafont-Mendoza, C. A. Severiche-Sierra, J. Jaimes-Morales

    Published 2018-01-01
    “…Three methods were used in triplicate: the first followed the official technique of the Association of Official Analytical Chemists (AOAC), to perform acid hydrolysis and quantification of starch by Titulation; the second method involved the colorful reaction with iodine using the UV equipment to measure the absorbance and calculate the percentage of starch; as a third method the FTIR was used, through which the concentration of the starch was calculated by the area under the curve obtained from the spectrum. …”
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  3. 3

    Chemical Composition and Nutritional Value of Three Sonchus Species by Galdino Xavier de Paula Filho, Tibério Fontenele Barreira, Helena Maria Pinheiro-Sant’Ana

    Published 2022-01-01
    “…The centesimal composition was investigated according to the norms of the Association of Official Analytical Chemists, the occurrence and concentration of carotenoids and vitamins through High-Performance Liquid Chromatography, and minerals with the aid of atomic emission spectrometry in inductively coupled plasma. …”
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  4. 4

    The Lignicolous Fungus Hericium erinaceus (Lion’s Mane Mushroom): A Promising Natural Source of Antiradical and DPPH Inhibitory Agents by Akbar Jahedi, Saeideh Ahmadifar, Rahman Mohammadi, Ebrahim Mohammadi Goltapeh

    Published 2025-01-01
    “…After preparing mushroom samples, the amount of mineral and mycochemical substances have been respectively evaluated by the Association of Official Analytical Chemists and Folin–Ciocalteu assay. In conclusion, among the fruiting bodies’ samples harvested from 19 substrates, the substrates sawdust 30% + wheat straw 30% + bagasse 15% + rice bran 15% + corn flour 10% recorded the highest phenol and flavonoid contents, with values of 27 mg GAE/g DW ext. and 8 mg QE/g DW ext. as well as the IC50 (88.7 μg/mL). …”
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  5. 5

    Direct Hot Solid–Liquid Extraction (DH-SLE): A High-Yield Greener Technique for Lipid Recovery from Coffee Beans by Daliane Cláudia de Faria, Maria Eliana Lopes Ribeiro de Queiroz, Fábio Junior Moreira Novaes

    Published 2025-01-01
    “…Soxhlet extraction is a method recommended by the Association of Official Analytical Chemists (AOAC) to determine the lipid content in plant samples. …”
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  6. 6

    Local wisdom-based instant cream soup as functional emergency food during health crises and disasters by Estuti Wiwit, Wayansari Lastmi, Rahman Nur, Nurul Alfiyah Isnar, Samuel Samuel, Kusmiyati Kusmiyati, Pertiwi Sinar, Rohmatin Etin, Widia Lestari Meti, Enis Rosulina Novi, Asti Rahmawati Vera

    Published 2025-01-01
    “…Nutritional value is measured with HPLC, AAS, or Gravimetric methods according to AOAC (Association of Official Analytical Chemists). Result: The best results for the acceptability of the overall parameter of cream soup in 3 flavors of original (6.6±2.3), mushroom (6.7±2.3), and vegetable onion (7.2±2.4) were in the provinces of West Java. …”
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  7. 7

    Effect of Moringa oleifera Seed Powder on the Clarity, Colloidal Particles, and Nutritional Contents of Cashew Apple Juice by Cajethan U. Ugwuoke, Felicitas G. Ugwuoke, Benedicta A. Omeje, Godwin E. Eze, Nnennaya S. Monwuba, Florence O. Ifeanyieze, Juliana A. Ukonze

    Published 2020-01-01
    “…Similarly, the tannin, lignin, pectin, protein, starch, calcium, zinc, copper, magnesium, and vitamin C were determined following the procedure of the Association of Official Analytical Chemists (AOAC). Results showed that cashew apple juice clarified with 10 g/250 cm3 gave the best clarity. …”
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  8. 8

    Effect of Lacticaseibacillus rhamnosus Yoba Fermentation on Physicochemical Properties, Amino Acids, and Antioxidant Activity of Cowpea-Peanut Milk by Armistice Chawafambira, Talknice Zvamaziva Jombo, Tafadzwa Mkungunugwa

    Published 2022-01-01
    “…The chemical and mineral contents of the fermented cowpea-peanut milk was analysed using Association of Official Analytical Chemists (AOAC) methods. Quality parameters such as 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging rate, total antioxidant activity, antinutrient, and amino acids content were determined. …”
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  9. 9

    Chemical analysis of buffalo meat in a self-consumption system in northeastern of Argentina by Gladis Rébak, Gladys Obregón, Diego Gómez, Laura Vázquez-Acosta, Mariano Pino, Julia Obregón, Rosa Molina, Victoria Cantero, Luz Segovia-Espinola

    Published 2023-11-01
    “…With the steak samples (n: 15), we determined the chemical composition of the meat and the food supplied to the buffaloes, referencing the standard methods of the Official Association of Analytical Chemists (AOAC). The fatty acid profile was also determined, with extraction according to the Folch technique and gas chromatography (GC), identifying saturated (SFA), unsat-urated (UFA): monounsaturated (MUFA) and polyunsaturated (PUFA) fatty acids present in the intramuscular fat. …”
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  10. 10

    Evaluation of mineral and near-infrared forecasting of wheat yield varieties using spectrophotometric techniques by H.A. Pardhe, N. Krishnaveni, B.K. Chekraverthy, S. Patel, S. Naveen, V. Rashmi, P.C. Govinden

    Published 2024-01-01
    “…To achieve these objectives, different spectrometric methods were employed to analyze the wheat samples.METHODS: Proximate and mineral quantification were carried out following standard Association of Official Analytical Chemists methods using ultraviolet-visible spectrophotometry, atomic absorption spectrometry, inductive coupled plasma-mass spectroscopy, and prediction was carried out using near-infrared spectra combined with chemometrics.FINDINGS: The samples had moisture content (1.1 - 4.5 percent), protein (18.0 - 22.6 percent), fat (0.3 - 0.6 percent), gluten (6.3 - 10.3 percent), fiber (0.3 - 1.4 percent), alcoholic acidity (0.04 - 0.08 percent), ash (0.9 - 1.7 percent), and carbohydrate (71.1 - 75.2 percent). …”
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  11. 11

    Effects of Conditioning Temperature on Pellet Quality, Nutrients Digestibility, and Metabolizable Energy of Broilers Diet by Seyedeh Vajiheh Shakhese Emampour, Abolghasem Golian, Heydar Zarghi, Ali Reza Hesabi Nameghi

    Published 2024-12-01
    “…Excreta and diet samples were analyzed for dry matter (DM; method 934.01), crude protein (CP; method 976.06), ether extract (EE; 954.02) according to the standard procedures of the Association of Official Analytical Chemists (AOAC, 2016). Apparent total tract retention coefficient of nutrients for diets were calculated. …”
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