G1 and g2

Manufactured by Merck Group

Sourced in United States

The G1 and G2 are laboratory equipment products from Merck Group. The G1 is a centrifuge machine used for separating components of a liquid mixture based on their density, while the G2 is a high-precision analytical balance for measuring the mass of small samples. Both products are designed to provide reliable and accurate results in laboratory settings, but a detailed description of their intended use or performance specifications is not available.

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Lab products found in correlation

2 protocols using g1 and g2

HPLC Analysis of Mycotoxin Contamination

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High-performance liquid chromatography (HPLC) grade methanol, acetonitrile, formic acid and ammonium formate (supplied by Sigma-Aldrich^®, St. Louis, MO, USA). HPLC grade Milli Q^® water was supplied by Biosciences East Central Africa (BecA), International Livestock Research Institute (ILRI), (P.O. Box 30709 Nairobi 00100, Kenya). Aflatoxin B1 was analysed by a multiple mycotoxin analysis method with mixed mycotoxins standards (Aflatoxin B1, B2, G1 and G2, Fumonisin B1 and B2, T-2 toxin, HT-2 toxin, and diacetoxyscirpenole) obtained from Sigma-Aldrich (Sigma-Aldrich Chemie B.V., Zwijndrecht, The Netherlands).

Temba B.A., Darnell R.E., Gichangi A., Lwezaura D., Pardey P.G., Harvey J.J., Karanja J., Massomo S.M., Ota N., Wainaina J.M., Fletcher M.T, & Kriticos D.J. (2021). The Influence of Weather on the Occurrence of Aflatoxin B1 in Harvested Maize from Kenya and Tanzania. Foods, 10(2), 216.

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Aspergillus parasiticus Cultivation and Analysis

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AFs B₁, B₂, G₁ and G₂, AITC (95%), acetonitrile, methanol, potassium nitrate, potassium chloride, sodium chloride and tartaric acid were purchased from Sigma–Aldrich (St. Louis, MO, USA) and were all HPLC‐grade. Deionized water (<18 MΩ cm resistivity) was obtained from a Milli‐Q water purification system (Millipore, Bedford, MA, USA). Chromatographic solvents and water were degassed for 15 min at 20 °C using a Branson 5200 (Branson Ultrasonic Corp., Danbury, CT, USA) ultrasonic bath. A. parasiticus CECT 2681 was obtained from the Spanish Type Culture Collection (CECT, Valencia, Spain). Buffered peptone water, potato dextrose agar (PDA) and potato dextrose broth (PDB) were provided by Liofilchem (Roseto degli Abruzzi, Italy).

Lopes L.F., Bordin K., de Lara G.H., Saladino F., Quiles J.M., Meca G, & Luciano F.B. (2017). Fumigation of Brazil nuts with allyl isothiocyanate to inhibit the growth of Aspergillus parasiticus and aflatoxin production. Journal of the Science of Food and Agriculture, 98(2), 792-798.

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