Globalization and sovereignty decline

Magnusson, Kjell

doi:10.5937/zrffp44-7332

Cited by 2 publications

(3 citation statements)

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“…Validation procedure. Method validation was carried out according to the current Eurachem guidelines 38 and the following parameters were assessed: linearity, precision and accuracy, sensitivity in terms of limits of detection (LODs) and limits of quantitation (LOQ), specificity, recovery and carry-over.…”

Section: Sample Preparationmentioning

confidence: 99%

GC–MS analysis of soil faecal biomarkers uncovers mammalian species and the economic management of the archeological site "Le Colombare di Negrar"

Reggio

Palmisano

Tecchiati

et al. 2023

Sci Rep

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The identification of the mammalian species based on faecal sediments in modern and ancient environments is the aim of the research of archaeologists, forensic scientists and ecologists. Here, we set up and validated an optimized gas chromatography-mass spectrometry (GC–MS) method, characterized by a time-saving sample preparation protocol, for the simultaneous analysis of faecal biomarkers (6 sterols/stanols and 5 bile acids) in 14 soil samples from the archaeological site of “Le Colombare di Negrar” in northern Italy. Although the archaeological sediment samples examined are numerically exiguous, a comparative reading of our faecal biomarkers findings with new studies on faunal materials collected in the same stratigraphic detail during recent excavation campaigns will allow to better clarify the economic interest of the animal species farmed in the Colombare site (such as bovines, goats, sheep and pigs) and to shed light on the management of breeding. Together with archaeozoological and archaeobotanical analyses, the investigation of faecal biomarkers can increase our knowledge of how ancient local communities exploited natural resources and may allow us to deduce what their impact on the landscape was.

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Section: Sample Preparationmentioning

confidence: 99%

GC–MS analysis of soil faecal biomarkers uncovers mammalian species and the economic management of the archeological site "Le Colombare di Negrar"

Reggio

Palmisano

Tecchiati

et al. 2023

Sci Rep

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“…The mobile phase was water and acetonitrile with a flow rate of 1.0 mL.min -1 in a linear gradient of 30%-45% acetonitrile in 30 min; column temperature was 30°C, injection volume was 20μL and detection at 210 nm (Shaw and Wilson, 1984;Ribeiro and Dias, 2002;Abbasi et al, 2005;Pichaiyongvongdee and Haruenkit, 2009;Dagulo et al, 2010). The HPLC-DAD method was validated according to international guidelines (Thompson and Wood, 2002;ICH, 2005;Magnusson and Örnemark, 2014). Calibration curve, linearity, limit of detection, limit of quantification, precision, and accuracy were evaluated.…”

Section: Limonin Analysismentioning

confidence: 99%

“…Validation was carried out according to international guidelines (Thompson and Wood, 2002;ICH, 2005;Magnusson and Örnemark, 2014). Calibration curves were prepared using limonin standard solutions from 0.4 to 61.5 µg.mL -1 .…”

Section: Limonin Analysismentioning

confidence: 99%

The influence of rootstock and extraction setting on the Limonin and Flavonoids levels in orange juice during ripeness

Mesquita¹,

Barbosa²,

Estevam³

et al. 2022

BJDV

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The influence of rootstock, maturity and extraction settings on limonin, hesperidin and narirutin levels of orange juice was evaluated. A liquid chromatographic method to determine limonin was developed and validated. The linear range was 0.410 to 61.5 µg.mL-1, with a linear correlation coefficient higher than 0.999. The limit of detection was 0.144 µg.mL-1and limit of quantification 0.363 µg; precision showed RSD≤5.0% and accuracy was from 92.6 to 100.4%. Limonin was identified in Pêra-Rio orange juices from Cleopatra mandarin and Rangpur lime rootstocks extracted in the NFC and FCOJ settings during the 2013 harvest. Limonin levels in Pêra-Rio orange juices ranged from 0.86 to 3.94 µg.mL-1 and flavonoids hesperidin and narirutin levels ranged from 12.00 to 26.02 µg.mL-1 for narirutin and from 122.12 to 175.01 µg.mL-1 for hesperidin. Principal component analysis was able to differentiate the juices from Cleopatra mandarin and Rangpur lime rootstocks according to ripeness, as well as extraction settings. Limonin and flavonoid levels reduced during maturation. Limonin levels were more expressive at the beginning of the harvest, especially in juice obtained with the FCOJ extraction setting. Hesperidin levels were about ten times higher than narirutin levels in all juices.

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Globalization and sovereignty decline

Cited by 2 publications

References 0 publications

GC–MS analysis of soil faecal biomarkers uncovers mammalian species and the economic management of the archeological site "Le Colombare di Negrar"

GC–MS analysis of soil faecal biomarkers uncovers mammalian species and the economic management of the archeological site "Le Colombare di Negrar"

The influence of rootstock and extraction setting on the Limonin and Flavonoids levels in orange juice during ripeness

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