Use of FTIR‐PAS combined with chemometrics to quantify nutritional information in rapeseeds (<b><i>Brassica napus</i></b>)

Lu, Yutong; Du, Changwen; Yu, Chang Yeon; Zhang, Jianmin

doi:10.1002/jpln.201300399

Cited by 11 publications

(7 citation statements)

References 40 publications

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“…A broad and strong peak attributed to O-H stretching vibration absorption [ 37 , 38 ] overlapping with N-H stretching vibration (amide I and amide II) [ 39 ] was observed from FTIR-PAS and FTIR-ATR in the region 3800–3000 cm −1 , whereas DRIFT showed a separate and shift of the peaks toward higher wavenumbers (at 3843 cm −1 , 3735 cm −1 and 3618 cm −1 ). The peak related to the asymmetric stretching vibration of methylene at 2920 cm −1 [ 40 ] was clearly visible in all techniques, while the peak related to the symmetric stretching vibration of aliphatic methylene at 2850 cm −1 [ 26 ] was just present in FTIR-ATR and DRIFT. Diffuse reflectance-FTIR was more sensitive to carbon dioxide in the environment than FTIR-PAS and FTIR-ATR with a strong CO 2 absorption peak around 2350 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

Application of FTIR-PAS in Rapid Assessment of Rice Quality under Climate Change Conditions

Wei

2021

Foods

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Fourier transform infrared photoacoustic spectroscopy (FTIR-PAS), versus attenuated total reflectance spectroscopy (FTIR-ATR) and diffuse reflectance spectroscopy (DRIFT), was firstly applied in quick assessment of rice quality in response to rising CO2/temperature instead of conventional time-consuming chemical methods. The influences of elevated CO2 and higher temperature were identified using FTIR-PAS spectra by principal component analysis (PCA). Variations in the rice functional groups are crucial indicators for rice identification, and the ratio of the intensities of two selected spectral bands was used for correlation analysis with starch, protein, and lipid content, and the ratios all showed a positive linear correlation (R2 = 0.9103, R2 = 0.9580, and R2 = 0.9246, respectively). Subsequently, changes in nutritional components under future environmental conditions that encompass higher CO2 and temperature were evaluated, which demonstrated the potential of FTIR-PAS to detect the responses of rice to climate change, providing a valuable technique for agricultural production and food security.

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Section: Resultsmentioning

confidence: 99%

Application of FTIR-PAS in Rapid Assessment of Rice Quality under Climate Change Conditions

Wei

2021

Foods

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“…The total spectral shapes and typical bands for all the treatments were similar among the different growth stages. The peak seen at approximately 3365 cm −1 was associated with N–H stretching vibration; the peak at 2925 cm −1 was associated with C–H stretching vibration [36]; the peak in the range of 1680 to 1630 cm −1 was associated with stretching vibration of C=O from amide I, and a small shoulder peak in the range of 1570 to 1510 cm −1 was associated with amide II. Spectral intensities of these two bands varied but the band position unchanged.…”

Section: Resultsmentioning

confidence: 99%

Rapid diagnosis of nitrogen status in rice based on Fourier transform infrared photoacoustic spectroscopy (FTIR-PAS)

et al. 2019

Plant Methods

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Background An effective and expeditious approach to assess plant nitrogen status is urgently needed in rice production and management as the conventional chemical methods are laborious and time-consuming. Results Fourier transform infrared photoacoustic spectroscopy (FTIR-PAS) was used to record the spectra of rice leaves for the effective diagnosis of nitrogen nutrition status. The band in the wavenumber range of 1680 to 1630 cm −1 was associated with amide I and that from 1570 to 1510 cm −1 with amide II. We attempted to use this information to characterize the nitrogen status in rice plants at different growth stages. The ratio of photoacoustic intensity of amide II to amide I was measured and applied as nitrogen status index, and considering the yields, the ratio showed a positive linear correlation (R 2 = 0.9) with the total nitrogen of rice leaves. The ratio at the tillering and full panicle stages were more suitable for diagnosis, a ratio of 0.4–0.55 indicated an adequate nitrogen status, ratios lower than 0.4 indicated a poor nitrogen status; whereas ratios greater than 0.55 indicated excessive nitrogen supply. Conclusion Our study provides an effective and rapid strategy for nitrogen-supply assessment in rice based on FTIR-PAS, which can guide rational fertilization in rice production. Electronic supplementary material The online version of this article (10.1186/s13007-019-0482-0) contains supplementary material, which is available to authorized users.

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“…The spectra displayed similar total shapes for all treatments and typical bands were observed from the mid‐infrared photoacoustic spectra. Bands in the range 3800–3100 cm −1 were assigned to N–H stretching and O–H stretching vibrations ( Lu et al, 2014). Small shoulder peaks around 2900 cm −1 were assigned to C–H stretching vibrations.…”

Section: Resultsmentioning

confidence: 99%

Diagnosis of nitrogen status in Chinese cabbage (Brassica rapa chinensis) using the ratio of amide II to amide I in leaves based on mid‐infrared photoacoustic spectroscopy

et al. 2015

J. Plant Nutr. Soil Sci.

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In order to quickly diagnose the nitrogen status of Chinese cabbage (Brassica rapa chinensis), Fourier transform mid-infrared photoacoustic spectroscopy, a nondestructive and rapid approach was used. Two clear stable peaks, in the range 1680-1650 cm -1 associated with amide I and in the range of 1530-1520 cm -1 associated with amide II, were observed and responded positively to nitrogen treatments. The characteristic bands of amide I and amide II were also accurately separated by curve-fitting via deconvolution using a Gauss expansion function. The ratio of the photoacoustic intensities of amide II to amide I was used for correlation analysis with nitrogen treatment, and the correlation coefficients (R 2 , n = 59) at seedling and growth stage were 0.9769 (P 5%) and 0.9884 (P 5%), respectively. The ratio of the amide II and amide I peaks was found to be an indicator of nitrogen input during the seedling stage such that a ratio of less than 0.9 indicated a low nitrogen input, a ratio between 0.9 and 1.0 indicated a moderate nitrogen input, and a ratio of more than 1.0 implied an excessive N input.

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Use of FTIR‐PAS combined with chemometrics to quantify nutritional information in rapeseeds (Brassica napus)

Cited by 11 publications

References 40 publications

Application of FTIR-PAS in Rapid Assessment of Rice Quality under Climate Change Conditions

Application of FTIR-PAS in Rapid Assessment of Rice Quality under Climate Change Conditions

Rapid diagnosis of nitrogen status in rice based on Fourier transform infrared photoacoustic spectroscopy (FTIR-PAS)

Diagnosis of nitrogen status in Chinese cabbage (Brassica rapa chinensis) using the ratio of amide II to amide I in leaves based on mid‐infrared photoacoustic spectroscopy

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