Samples of crude propolis (200 ± 2 mg) or crude resins (20 ± 0.2 mg) added with 1 µL internal control (l-carvone, Sigma-Aldrich, St. Louis, MO, USA) were placed in 20 mL glass vials and capped with gas-tight magnetic screw caps with a polytetrafluoroethylene/silicone ...
(St. Louis, MO, USA). Enzymes like amyloglucosidase, amylase (heat-stable), and pancreatin were also obtained from Sigma-Aldrich. 2.2. White Rice, Brown Rice, and Germinated Brown Rice Samples A native Southern Thai non-glutinous rice (Oryza sativa L.), var. Yoom Noon, was harvested in ...
The calibration curves were used to obtain the concentration of AAs in RW, RY, and mahewu samples using amino acid standards purchased from Sigma Aldrich, (St Louis, MO, USA). 2.7. Identification of Phenolic Compounds in Raw Maize Flour (RW and RY) and Mahewu Samples Using UHPLC/Q-TOF...
The leachability of metal(loid)s, regulated under the Resource Conservation and Recovery Act (RCRA 8 metals), were below their respective US Environmental Protection Agency (EPA) allowable limits of 5.0, 100, 1.0, 5.0, 5.0, 0.2, 1.0, and 5.0 mg/kg, indicating that the WTRs were non-...
Eastern herbal medicines (HMs) are plant-derived naturally occurring substances with minimum or no industrial processing that have long been used in traditional medicine. Aflatoxins are frequent contaminants of plants. Therefore, these mycotoxins are lik