Infrared Spectroscopic Technologies for the Quality Control of Herbal Medicines

Huck, Christian W.

doi:10.1016/b978-0-12-800874-4.00022-2

Cited by 20 publications

(7 citation statements)

References 59 publications

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“…With Focal Plane Array (FPA), detectors which enable obtaining a series of spectra collected in two dimensions [ 54 ], the required measurement time is reduced. These detectors consist of several thousands of single detector elements which record all spectra at once without the need for moving the sample [ 55 , 56 ]. Hyperspectral imaging .…”

Section: Principles Of Mid-ir and Near-ir Imaging/microspectroscopmentioning

confidence: 99%

A Review of Mid-Infrared and Near-Infrared Imaging: Principles, Concepts and Applications in Plant Tissue Analysis

2017

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Plant cells, tissues and organs are composed of various biomolecules arranged as structurally diverse units, which represent heterogeneity at microscopic levels. Molecular knowledge about those constituents with their localization in such complexity is very crucial for both basic and applied plant sciences. In this context, infrared imaging techniques have advantages over conventional methods to investigate heterogeneous plant structures in providing quantitative and qualitative analyses with spatial distribution of the components. Thus, particularly, with the use of proper analytical approaches and sampling methods, these technologies offer significant information for the studies on plant classification, physiology, ecology, genetics, pathology and other related disciplines. This review aims to present a general perspective about near-infrared and mid-infrared imaging/microspectroscopy in plant research. It is addressed to compare potentialities of these methodologies with their advantages and limitations. With regard to the organization of the document, the first section will introduce the respective underlying principles followed by instrumentation, sampling techniques, sample preparations, measurement, and an overview of spectral pre-processing and multivariate analysis. The last section will review selected applications in the literature.

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Section: Principles Of Mid-ir and Near-ir Imaging/microspectroscopmentioning

confidence: 99%

A Review of Mid-Infrared and Near-Infrared Imaging: Principles, Concepts and Applications in Plant Tissue Analysis

2017

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“…More than half of the global population is dependent on traditional medicines for health care, as cited in a World Health Organisation report [ 3 ]. The global demand for medicinal plants has increased considerably due to their proven effectiveness in treating various diseases [ 4 ]. The beneficial medicinal effects of plant materials result from the combination of secondary metabolites present in the plants, according to the specific chemical structure of each biochemical active compound [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

“…The medicinal activity obtained from these wide varieties of different phytochemicals is plant, tissue, species, or variety specific or taxonomy specific. In many parts of the world, medicinal herbs play a substantial part in diets as they are key ingredients in many foods, beverages, pharmaceuticals, and cosmetics [ 4 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Metabolomic Fingerprinting Combined with Chemometrics Identifies Species- and Variety-Specific Variation of Medicinal Herbs: An Ocimum Study

et al. 2023

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Identification of plant species is a crucial process in natural products. Ocimum, often referred to as the queen of herbs, is one of the most versatile and globally used medicinal herbs for various health benefits due to it having a wide variety of pharmacological activities. Despite there being significant global demand for this medicinal herb, rapid and comprehensive metabolomic fingerprinting approaches for species- and variety-specific classification are limited. In this study, metabolomic fingerprinting of five Ocimum species (Ocimum basilicum L., Ocimum sanctum L., Ocimum africanum Lour., Ocimum kilimandscharicum Gurke., and Hybrid Tulsi) and their varieties was performed using LC-MS, GC-MS, and the rapid fingerprinting approach FT-NIR combined with chemometrics. The aim was to distinguish the species- and variety-specific variation with a view toward developing a quality assessment of Ocimum species. Discrimination of species and varieties was achieved using principal component analysis (PCA), partial least squares discriminate analysis (PLS-DA), data-driven soft independent modelling of class analogy (DD-SIMCA), random forest, and K-nearest neighbours with specificity of 98% and sensitivity of 99%. Phenolics and flavonoids were found to be major contributing markers for species-specific variation. The present study established comprehensive metabolomic fingerprinting consisting of rapid screening and confirmatory approaches as a highly efficient means to identify the species and variety of Ocimum, being able to be applied for the quality assessment of other natural medicinal herbs.

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“…In this context, IR spectroscopy is a useful analytical tool for both quantitative and qualitative analysis offering the advantages of being fast, nondestructive/non-invasive, reproducible, easy to use and cost-effective. 31,32 Conventional infrared spectroscopy is only able to provide one average spectrum without any information upon the distribution of the chemical components. 31 In this context, IR imaging/ micro-spectroscopy offers great advantages for the comprehensive analysis on the spatial distribution patterns of plant constituents.…”

Section: Introductionmentioning

confidence: 99%

“…31,32 Conventional infrared spectroscopy is only able to provide one average spectrum without any information upon the distribution of the chemical components. 31 In this context, IR imaging/ micro-spectroscopy offers great advantages for the comprehensive analysis on the spatial distribution patterns of plant constituents. 33 These methods enable direct and non-destructive examination while maintaining the native composition of the plant tissue.…”

Section: Introductionmentioning

confidence: 99%

Infrared spectroscopic imaging studies of medicinal plants

Türker-Kaya

Huck-Pezzei²,

Huck³

2018

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Molecular knowledge about plant constituents and their localization is of interest for basic and applied plant sciences. Mid-and near-infrared imaging techniques have advantages over conventional methods. These technologies offer significant information for the studies on plant classification, physiology, ecology, genetics pathology and other related disciplines. This article aims to present a general perspective about infrared imaging/micro-spectroscopy in plant research.

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Infrared Spectroscopic Technologies for the Quality Control of Herbal Medicines

Cited by 20 publications

References 59 publications

A Review of Mid-Infrared and Near-Infrared Imaging: Principles, Concepts and Applications in Plant Tissue Analysis

A Review of Mid-Infrared and Near-Infrared Imaging: Principles, Concepts and Applications in Plant Tissue Analysis

Comprehensive Metabolomic Fingerprinting Combined with Chemometrics Identifies Species- and Variety-Specific Variation of Medicinal Herbs: An Ocimum Study

Infrared spectroscopic imaging studies of medicinal plants

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