Strategies for the content determination of capsaicin and the identification of adulterated pepper powder using a hand-held near-infrared spectrometer

Wu, Sijun; Wang, Long; Zhou, Guohui; Liu, Chao; Ji, Zhongrui; Li, Zheng; Li, Wenlong

doi:10.1016/j.foodres.2022.112192

Cited by 24 publications

(11 citation statements)

References 43 publications

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“…277 A hand-held near-infrared spectrometer can rapidly detect the capsaicin content and adulteration in pepper powder on site based on selective ensemble preprocessing and machine learning. 278 Surface enhanced Raman spectroscopy utilized a Ag-nanorod array for the detection of as low as 1−60 mg L −1 capsaicin in gutter oil samples. 279 The extinction coefficients for capsaicin were determined to be 507 and 663 nm via absorption and diffuse reflectance signals for the hands-on classification of chili peppers by optical spectroscopy.…”

Section: Detection and Separation Methods Formentioning

confidence: 99%

“…Subsequently, DART combined with time-of-flight (ToF)-MS could also successfully detect capsaicin levels in pepper fruit and seeds based on the characteristic m / z values as confirmed by HPLC-DAD data . A hand-held near-infrared spectrometer can rapidly detect the capsaicin content and adulteration in pepper powder on site based on selective ensemble preprocessing and machine learning . Surface enhanced Raman spectroscopy utilized a Ag-nanorod array for the detection of as low as 1–60 mg L –1 capsaicin in gutter oil samples .…”

Section: Detection and Separation Methods For Capsicum Secondary Meta...mentioning

confidence: 99%

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Genetic Regulation, Environmental Cues, and Extraction Methods for Higher Yield of Secondary Metabolites in Capsicum

Islam

Rawoof

Kumar

et al. 2023

J. Agric. Food Chem.

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Capsicum (chili pepper) is a widely popular and highly consumed fruit crop with beneficial secondary metabolites such as capsaicinoids, carotenoids, flavonoids, and polyphenols, among others. Interestingly, the secondary metabolite profile is a dynamic function of biosynthetic enzymes, regulatory transcription factors, developmental stage, abiotic and biotic environment, and extraction methods. We propose active manipulable genetic, environmental, and extraction controls for the modulation of quality and quantity of desired secondary metabolites in Capsicum species. Specific biosynthetic genes such as Pun (AT3) and AMT in the capsaicinoids pathway and PSY, LCY, and CCS in the carotenoid pathway can be genetically engineered for enhanced production of capsaicinoids and carotenoids, respectively. Generally, secondary metabolites increase with the ripening of the fruit; however, transcriptional regulators such as MYB, bHLH, and ERF control the extent of accumulation in specific tissues. The precise tuning of biotic and abiotic factors such as light, temperature, and chemical elicitors can maximize the accumulation and retention of secondary metabolites in pre-and postharvest settings. Finally, optimized extraction methods such as ultrasonication and supercritical fluid method can lead to a higher yield of secondary metabolites. Together, the integrated understanding of the genetic regulation of biosynthesis, elicitation treatments, and optimization of extraction methods can maximize the industrial production of secondary metabolites in Capsicum.

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Section: Detection and Separation Methods Formentioning

confidence: 99%

Section: Detection and Separation Methods For Capsicum Secondary Meta...mentioning

confidence: 99%

Genetic Regulation, Environmental Cues, and Extraction Methods for Higher Yield of Secondary Metabolites in Capsicum

Islam

Rawoof

Kumar

et al. 2023

J. Agric. Food Chem.

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“…In recent years, with the rapid development of chemometrics, the rich information contained in NIR spectra has been extracted by establishing qualitative and quantitative models after pretreatment and waveband selection, which has greatly enhanced the interpretability of NIR spectra [11]. NIR spectra combined with chemometric analysis have been widely used in the identification of herbal species [12], origin [13], authenticity [14], and quantitative analysis of active ingredients [15]. However, compared with CE fingerprints, the interpretability of NIR spectra fingerprints remains poor, and it is almost impossible to obtain chemical‐related information directly from the peak positions and peak intensities of the spectra.…”

Section: Introductionmentioning

confidence: 99%

Rapid quality assessment of Gentianae Macrophyllae Radix based on near‐infrared spectroscopy and capillary electrophoresis

et al. 2023

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The aim of this study was to establish a rapid quality assessment method for Gentianae Macrophyllae Radix (RGM) using near-infrared (NIR) spectra combined with chemometric analysis. The NIR spectra were acquired using an integrating sphere diffuse reflectance module, using air as the reference. Capillary electrophoresis (CE) analyses were performed on a model P/ACE MDQ Plus system. Partial least squares-discriminant analysis qualitative model was developed to distinguish different species of RGM samples, and the prediction accuracy for all samples was 91%. The CE response values at each retention time were predicted by building a partial least squares regression (PLSR) calibration model with the CE data set as the Y matrix and the NIR spectra data set as the X matrix. The converted CE fingerprints basically match the real ones, and the six main peaks can be accurately predicted. Transforming NIR spectra fingerprints into the form of CE fingerprints increases its interpretability and more intuitively demonstrates the components that cause diversity among samples of different species and origins. Loganic acid, gentiopicroside, and roburic acid were considered quality indicators of RGM and calibration models were built using PLSR algorithm. The developed models gave root mean square error of prediction of 0.2592% for loganic acid, 0.5341% for gentiopicroside, and 0.0846% for roburic acid. The overall results demonstrate that the rapid quality assessment system can be used for quality control of RGM.

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“…12 Spectroscopic techniques, such as near-infrared (NIR) or Raman spectroscopy, provide a nondestructive and cost-effective means, and have been widely recognized as powerful PAT tools applied in the pharmaceutical industry. 13 More recently, NIR spectroscopy has emerged as one of the most popular measurement methods, which can monitor blend uniformity, 14 tablet strength, 15,16 drug dissolution, 17 powder density 18 and adulteration 19 and has attracted increasing attention. Ojala et al used the design of experiments (DoE) approach to study the effects of variables systematically and substituted a conventional sixsample dissolution analysis of Toremifene 80 mg immediate release tablets by non-invasive NIR scanning of the production batches.…”

Section: Introductionmentioning

confidence: 99%

Prediction of dissolution profiles of sinomenine hydrochloride sustained-release tablets part I: using near-infrared spectra as predictors

Wang

et al. 2023

New J. Chem.

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Strategies for the content determination of capsaicin and the identification of adulterated pepper powder using a hand-held near-infrared spectrometer

Cited by 24 publications

References 43 publications

Genetic Regulation, Environmental Cues, and Extraction Methods for Higher Yield of Secondary Metabolites in Capsicum

Genetic Regulation, Environmental Cues, and Extraction Methods for Higher Yield of Secondary Metabolites in Capsicum

Rapid quality assessment of Gentianae Macrophyllae Radix based on near‐infrared spectroscopy and capillary electrophoresis

Prediction of dissolution profiles of sinomenine hydrochloride sustained-release tablets part I: using near-infrared spectra as predictors

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