End-point determination of the extraction processes for Stevia rebaudiana Bertoni leaves by near-infrared spectroscopy

Gao, Lele; Liang, Zhong; Wei, Yongheng; Li, Lian; Dong, Hailing; Zhang, Hui; Dong, Qin; Zang, Hengchang

doi:10.1016/j.chemolab.2022.104668

Cited by 8 publications

(3 citation statements)

References 54 publications

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“…Based on PCA, the two phases of the extraction process were essentially consistent with that presented in previous published articles, demonstrating the feasibility of using NIR spectroscopy for characterizing the extraction process of herbal medicines was good. 12,28…”

Section: Resultsmentioning

confidence: 99%

“…With the increasing computing power and evolution of chemometrics, near-infrared (NIR) spectroscopy has seen a surge in applications across a variety of industries, including pharmaceutical, food, petroleum, and chemical in recent years. 8–12 Compared to the traditional analytical technologies, NIR spectroscopy is characterized by rapid analysis, no complicated pretreatment of samples and is environment-friendly. 13 Partial least squares (PLS) regression and moving block standard deviation (MBSD) are capable of carrying out end-point determination in a quantitative and qualitative way, respectively.…”

Section: Introductionmentioning

confidence: 99%

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NIR spectroscopy as a PAT tool for the extraction process of Gegen Qinlian Decoction: end-point determination and fault detection

Zhou

Zhang

et al. 2023

New J. Chem.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

NIR spectroscopy as a PAT tool for the extraction process of Gegen Qinlian Decoction: end-point determination and fault detection

Zhou

Zhang

et al. 2023

New J. Chem.

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“…Since the eluate was separated and purified, there was not a large number of impurity peaks in the first 5 min, which appeared in the extract chromatogram, in the eluate chromatogram. 40 The determination results of the RA content in the eluates of each batch are shown in Fig. 4, from which we can see that the consistency between batches is poor.…”

Section: Analysis Of the Ra Content Of In Eluatesmentioning

confidence: 97%

Rapid determination of rebaudioside A content in the macroporous resin elution process using a portable near-infrared spectrometer

Gao,

Wang,

Zhong

et al. 2023

New J. Chem.

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Nondestructive rapid identification of wild Cordyceps sinensis with portable instrument

Zhang,

Li,

Nie

et al. 2023

Phytochemical Analysis

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IntroductionCordyceps sinensis (CS) is a precious medicinal fungus. Wild CS (WCS) and artificial CS (ACS) are destroyed for their identification using traditional methods, which are time consuming and labor‐intensive. Therefore, it is crucial to establish a nondestructive identification method to rapidly screen WCS.ObjectiveThe aim of this study was to provide technical support for rapid screening of CS and evaluation of its quality. The applicability of the model was improved through model transfer.MethodsIn this study, continuous wavelet transform was used to analyze the differences in moisture content and active components between WCS and ACS from the perspective of characteristic molecular groups. A portable instrument and a laboratory benchtop instrument were used to determine CS spectra. Partial least squares discrimination analysis was conducted for the identification of WCS and ACS while preserving the original shape of CS. Moreover, improved principal component analysis was utilized to transfer the model between the two types of near‐infrared spectroscopy (NIRS) instruments.ResultsThe results demonstrated that three peaks, at 1443, 1941, and 2183 nm, were characteristic absorption peaks. The model based on NIRS could initially provide rapid differentiation between WCS and ACS. At the same time, the accuracy of the external test set was further improved to over 95% through forward transfer.ConclusionTherefore, this method could be used for rapid screening of WCS and provides technical support for the nondestructive identification of CS and initial assessment of CS quality.

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End-point determination of the extraction processes for Stevia rebaudiana Bertoni leaves by near-infrared spectroscopy

Cited by 8 publications

References 54 publications

NIR spectroscopy as a PAT tool for the extraction process of Gegen Qinlian Decoction: end-point determination and fault detection

NIR spectroscopy as a PAT tool for the extraction process of Gegen Qinlian Decoction: end-point determination and fault detection

Rapid determination of rebaudioside A content in the macroporous resin elution process using a portable near-infrared spectrometer

Nondestructive rapid identification of wild Cordyceps sinensis with portable instrument

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