Analysis of plant extracts by NIRS: simultaneous determination of kavapyrones and water in dry extracts of Piper methysticum Forst.

Gaub, Marie–Pierre; Roeseler, C.; Roos, G.; Kovar, Karl‐Artur

doi:10.1016/j.jpba.2004.06.030

Cited by 19 publications

(12 citation statements)

References 18 publications

(17 reference statements)

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“…Both PLS and iPLS were used in combination with multiple scatter correction (MSC) to provide reliable PLS calibration models for quercetin [43]. Kava (Piper methysticum Forst F.), or awa in the Hawaiian language, has been used for thousands of years by the people of the South Pacific Islands, in particular Fiji, Vanuatu, Tonga, and Samoa, for social and ceremonial occasions [44], [45]. Kava has the unique ability to promote a state of relaxation without the loss of mental alertness [44], [45].…”

Section: Phenolic Compoundsmentioning

confidence: 99%

“…Kava (Piper methysticum Forst F.), or awa in the Hawaiian language, has been used for thousands of years by the people of the South Pacific Islands, in particular Fiji, Vanuatu, Tonga, and Samoa, for social and ceremonial occasions [44], [45]. Kava has the unique ability to promote a state of relaxation without the loss of mental alertness [44], [45]. Kava recently became part of the herbal pharmacopoeia throughout the United States and Europe because of its anxiolytic properties [44], [45].…”

Section: Phenolic Compoundsmentioning

confidence: 99%

“…Kava has the unique ability to promote a state of relaxation without the loss of mental alertness [44], [45]. Kava recently became part of the herbal pharmacopoeia throughout the United States and Europe because of its anxiolytic properties [44], [45]. The active compounds are collectively called kavalactones (or kava pyrones).…”

Section: Phenolic Compoundsmentioning

confidence: 99%

“…The active compounds are collectively called kavalactones (or kava pyrones). PLS calibrations were developed for kava extracts analysed using both NIR and HPLC methods [44]. The root mean square errors of calibration (RMSEC) obtained were 0.054 and 0.081 for kavain (• " Table 1) and kavapyrones, respectively [44].…”

Section: Phenolic Compoundsmentioning

confidence: 99%

“…PLS calibrations were developed for kava extracts analysed using both NIR and HPLC methods [44]. The root mean square errors of calibration (RMSEC) obtained were 0.054 and 0.081 for kavain (• " Table 1) and kavapyrones, respectively [44]. The combination of NIR spectroscopy and PLS has been found to be a convenient, versatile, and rapid analytical tool for determination of kavalactones in dried kava powder.…”

Section: Phenolic Compoundsmentioning

confidence: 99%

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Near Infrared Spectroscopy in Natural Products Analysis

Cozzolino

2009

Planta Med

122

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!Several medicinal and herbal plants properties are related to individual compounds such as essential oils, terpenoids, flavonoids, which are present in natural products in low concentrations (e. g., ppm or ppb). For many years, the use of classical separation and chromatographic and spectrometric techniques such as high performance liquid chromatography (HPLC), gas chromatography (GC), liquid chromatography (LC) and mass spectrometry (MS) were initially used for the elucidation of isolated compounds from different plant matrices. Spectroscopic techniques in the infrared (IR) wavelength region of the electromagnetic spectrum have been used in the food industry to monitor and evaluate the composition of foods. Although Herschel discovered light in the near-infrared (NIR) region as early as 1800, most spectroscopists of the first half of the last century ignored it, in the belief that it lacked any analytical interest. However, during the last 40 years NIR spectroscopy has become one of the most attractive and used methods for analysis. This mini-review highlights recent applications of NIR spectroscopy to the qualitative and quantitative analysis of plant natural products.

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Section: Phenolic Compoundsmentioning

confidence: 99%

Section: Phenolic Compoundsmentioning

confidence: 99%

Section: Phenolic Compoundsmentioning

confidence: 99%

Section: Phenolic Compoundsmentioning

confidence: 99%

Section: Phenolic Compoundsmentioning

confidence: 99%

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Near Infrared Spectroscopy in Natural Products Analysis

Cozzolino

2009

Planta Med

122

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Current Awareness in Phytochemical Analysis

2005

Phytochem. Anal.

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In order to keep subscribers up‐to‐date with the latest developments in their field, John Wiley &Sons are providing a current awareness service in each issue of the journal. The bibliography contains newly published material in the field of phytochemical analysis. Each bibliography is divided into 13 sections: 1 Books, Reviews &Symposia; 2 General; 3 Nucleic Acids; 4 Amino Acids, Proteins &Enzymes; 5 Carbohydrates; 6 Lipids; 7 Secondary Products; 8 Growth Regulators; 9 Industrially‐Important Products; 10 Toxins/Allergens; 11 Pigments; 12 Vitamins; 13 Others. Within each section, articles are listed in alphabetical order with respect to author. If, in the preceding period, no publications are located relevant to any one of these headings, that section will be omitted.

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