Possibility of Light-Induced Mid-IR Emission in Situ Analysis of Plants

Terpugov, E. L.; Degtyareva, O. V.; Savransky, V. V.

doi:10.1007/s10946-016-9602-8

Cited by 10 publications

(8 citation statements)

References 13 publications

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“…In case of the pulp samples, this vibration is most likely linked to the lipids contained in the fruit seeds ( Vongsvivut et al, 2013 ). However, in the previous study by Terpugov et al (2016) the peak was attributed to proteins. The vibration in the region of 1,700–1,550 cm –1 is typically originated to stretching band of carbonyl groups C=O and C=C ( Tahir et al, 2017 ).…”

Section: Resultsmentioning

confidence: 76%

Rapid Prediction of Fig Phenolic Acids and Flavonoids Using Mid-Infrared Spectroscopy Combined With Partial Least Square Regression

Hssaini¹,

Razouk²,

Bouslıhım³

2022

Front. Plant Sci.

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Section: Resultsmentioning

confidence: 76%

Rapid Prediction of Fig Phenolic Acids and Flavonoids Using Mid-Infrared Spectroscopy Combined With Partial Least Square Regression

Hssaini¹,

Razouk²,

Bouslıhım³

2022

Front. Plant Sci.

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“…It is probably associated with the lipids and fatty acids contained in the seeds [70,73]. Nevertheless, according to several authors, this peak could be attributed to proteins [59][60][61]74]. Vibration within the wavenumber range of 1700 to 1550 cm − 1 is possibly related to the amide I and II secondary structure of the protein.…”

Section: Ftir Signaturesmentioning

confidence: 95%

Do Pollination and Pollen Sources Affect Fig Seed Set and Quality? First Attempt Using Chemical and Vibrational Fingerprints Coupled with Chemometrics

Hssaini¹,

Razouk²,

Irchad³

et al. 2022

Journal of Chemistry

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This research investigates whether pollination and pollen sources separately and simultaneously influence fig seed set and quality, as being thus far the less studied part of the fig trees. This is the first research that tries to answer and verify the above hypothesis through a combined approach of vibrational spectroscopy along with lipo-biochemical and ionomic fingerprinting. Results showed that pollination and pollen source significantly impacted seed set as it was higher in fertilized seeds than that in the control. A similar pattern was obtained with oil yield, which generally ranged between 25.93 and 32.59%. Caprification also displayed a substantial effect on seeds' phenolic components, which was more driven by pollen carbohydrates, involved in the phenolic biosynthesis in the endosperm and embryo tissues. This biosynthesis is also activated by minerals, which are cofactors for large varieties of enzymes that are involved in the phenolic synthesis pathways. Ca and Zn did not follow this pattern and have recorded high levels in figs fertilized by the pollen of OZ and FD4 caprifigs pollen, respectively. Vibrational spectroscopy using Fourier transform infrared (FTIR) spectroscopy coupled with total attenuated reflectance (ATR) also showed a similar pattern to the seed sets and their lipo-biochemical attributes. Thus, the fertilized seeds displayed high vibrational intensity compared to the control in all fingerprint regions. Peaks at 2928 and 1747 cm−1 had a higher intensity and were attributed to lipids CH2 and CH3 stretching vibration and C=O of the carbonyl groups belonging to the triacylglycerols, respectively. Principal component analysis showed high throughput classification with quite similar patterns for both FTIR-ATR fingerprinting and ionomic and biochemical analysis. As many areas of how caprification impacts other seed aspects still need to be investigated further, this research suggests the importance of caprification in seed valorization for oil extraction and as a functional ingredient.

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“…This band was probably a result of several weak peaks that could not be differentiated among the analyzed samples. According to several studies, this band usually includes, among others, a vibration around 1392 cm −1 , which is most likely related to carbohydrates, fatty acids or amino acid side chains [31,32]; the 1315 cm −1 vibration, which is associated with CH 2 rocking [33]; and a band at 1230 cm −1 , which is due to C-N elongation combined with N-H in-bending, alongside small vibrations from C-C elongation and C-O in-plane bending. This band was assigned to Amide III.…”

Section: Ftir Fingerprintingmentioning

confidence: 99%

Combined Effect of Cultivar and Peel Chromaticity on Figs’ Primary and Secondary Metabolites: Preliminary Study Using Biochemical and FTIR Fingerprinting Coupled to Chemometrics

Hssaini¹,

Elfazazi²,

Razouk³

et al. 2021

Biology

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Figs are a traditional pantry staple for healthy eating in Middle Eastern and North African countries as fig trees grow abundantly in such hot and dry climates. Despite the importance of this species, chemotypic diversity has gone unheeded and therefore its valorization pathways remain poorly documented. For this reason, high-pressure liquid chromatography (HPLC) alongside vibrational spectroscopy were used to investigate the changes of antiradical potency and primary and secondary metabolites in fresh figs with regard to the combined effect of the cultivar factor and the fruit peel chromatic coordinates. Fourier-transform infrared spectroscopy (FTIR) fingerprinting displayed six major peaks assigned to functional groups of the investigated samples with significant differences in their vibration intensities. Biochemical screening revealed highly significant variability (p < 0.05) among the investigated cultivars. Antioxidant activity was found to be higher in free radical scavenging using 2,2-diphenyl-1-picrylhydrazyl (DPPH) compared to ferric reducing ability (FRAP). Chemometric investigations of both biochemical and FTIR fingerprinting showed satisfactory resolutions, and the total phenol contents and chromatic coordinates had the highest scores in the dataset. However, the cultivars’ geographical origin seemed not to have a clear impact on the clustering results. The aforementioned analytical procedures were found to be equally important and can be jointly used for high-resolution screening and discrimination of fig trees.

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Possibility of Light-Induced Mid-IR Emission in Situ Analysis of Plants

Cited by 10 publications

References 13 publications

Rapid Prediction of Fig Phenolic Acids and Flavonoids Using Mid-Infrared Spectroscopy Combined With Partial Least Square Regression

Rapid Prediction of Fig Phenolic Acids and Flavonoids Using Mid-Infrared Spectroscopy Combined With Partial Least Square Regression

Do Pollination and Pollen Sources Affect Fig Seed Set and Quality? First Attempt Using Chemical and Vibrational Fingerprints Coupled with Chemometrics

Combined Effect of Cultivar and Peel Chromaticity on Figs’ Primary and Secondary Metabolites: Preliminary Study Using Biochemical and FTIR Fingerprinting Coupled to Chemometrics

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