FTIR BANDS (cm–1) | VIBRATIONAL MODES |
---|---|
3268 | υ(OH) |
2940 | υas (CH3); methyl groups of residual acetate groups |
2910 | υas (CH2) |
1654 | δ(O – H) C = O vibration of residual acetate groups |
1563 | C = C of residual acetate groups |
1413 | δ(C – H) of CH2; δ(CH3); δs(–CH2) group |
1378 | ω(CH) |
1327 | δ(C – H) of C – CH3; δ(CH2) |
1236 | δ(C – O); υ(C – O – C) of ester group |
1142 | υ(C – C) and υ(C – O – C) related to the PVA crystallinity |
1088 | υ(C – O) coupled with δ(O – H); υ(C – O); υ(C – O) – C – OH |
915 | CH 2 of PVA atatic form |
835 | CH2of PVA atatic form; ω(CH); υ(–CH2) |
BARBATIMÃO EXTRACT [56[56] BAJAD, P.N., PARDESHI, A.B., “Qualitative and quantitave analysis of saponin as bioactive agent of Sapindus emarginatus”, International Journal of Scientific Research, v. 5, n. 10, pp. 351–354, 2015.,57[57] POLUNIN, K.E., SOKOLOVA, N.P., GORBUNOV, A.M., et al., “FTIR spectroscopic studies of interactions of stilbenes with silicon dioxide”, Protection of Metals, v. 44, n. 4, pp. 352–357, Jul. 2008. doi: http://dx.doi.org/10.1134/S0033173208040061 https://doi.org/10.1134/S003317320804006... ,58[58] MUSHIN, M., SHAMI, A., “Isolation and Identification of Alkaloids extracted from Local Plants in Malaysia”, Annals of Chromatography and Separation Techniques, v. 2, n. 1, pp. 1–3, 2016. doi: http://dx.doi.org/10.36876/acst.1016 https://doi.org/10.36876/acst.1016... ,59[59] MALACARNE, M., ANTONIOLLI, G., BERTOLDI, D., et al., “Botanical origin characterisation of tannins using infrared spectroscopy”, Food Chemistry, v. 267, pp. 204–209, Nov. 2018. doi: http://dx.doi.org/10.1016/j.foodchem.2017.06.131. PubMed PMID: 29934158. https://doi.org/10.1016/j.foodchem.2017.... ,60[60] RICCI, A., PARPINELLO, G.P., OLEJAR, K.J., et al., “Attenuated Total Reflection Mid-Infrared (ATR-MIR) spectroscopy and chemometrics for the identification and classification of commercial tannins”, Applied Spectroscopy, v. 69, n. 11, pp. 1243–1250, Nov. 2015. doi: http://dx.doi.org/10.1366/15-07957. PubMed PMID: 26647047. https://doi.org/10.1366/15-07957... ,61[61] RODRIGUES, D.F., MENDES, F.F., NORORNHA FILHO, A.D.F., et al., “O extrato da casca de barbatimão, Stryphnodendron adstringens(Martius) Coville, na cicatrização de feridas em animais”, Enciclopédia Biosfera, v. 9, n. 16, pp. 1583–1601, Jul. 2013. https://conhecer.org.br/ojs/index.php/biosfera/article/view/3469, accessed in Nov. 2016. https://conhecer.org.br/ojs/index.php/bi... ,62[62] CARRILLO-LÓPEZ, L.M., ZAVALETA-MANCERA, H.A., VILCHIS-NESTOR, A., et al., “Biosynthesis of Silver nanoparticles using Chenopodium ambrosioides”, Journal of Nanomaterials, v. 2014, pp. 951746, 2014. doi: http://dx.doi.org/10.1155/2014/951746 https://doi.org/10.1155/2014/951746... ,63[63] DOS ANJOS, F., OLIVEIRA JÚNIOR, E.A., SOUSA, F.M.S., et al., “Análise espectroscopicada membrana de quitosana eextrato dechenopodium ambrosioidespara uso como biomaterial” In: Anais do do 22o CBECiMat - Congresso Brasileiro de Engenharia e Ciência dos Materiais, pp. 1–7, Natal – RN – Brasil, 2016.,64[64] BORGES, F.A., SIGUEMATSU, P.R., HERCULANO, R.D., et al., “Novel sustained-release of Stryphnodendron obovatum leaves extract using natural rubber latex as carrier”, Revista de Ciências Farmacêuticas Básica e Aplicada, v. 36, n. 3, pp. 379–384, 2015.,65[65] MAITERA, O.N., CHUKKOL, I.B., “Phytochemical and fourier transform infrared spectroscopy analysis of faidherbia albida (Del)as a preservative agent”, World Journal of Research and Review, v. 3, n. 3, pp. 25–29, 2016.] |
|
---|---|
3301 | υ(O – H); δ(C – O – H) in phenols; hydrogen-bonding interaction |
2921 | υ(C – H) |
2852 | υ(C – H) |
1773 | tannins’ υ(C = O) of the carbonyl group |
1733 | tannins’ υ(C = O) of the carbonyl group (from moiety, acid, and beta-carotene) |
1610 | tannins’ υ(C = O) of the aromatic rings; thymol’s aromatic ring; aromatic fragments of stilbenes |
1509 | stretching of the tannins’ aromatic ring; C – H; aromatic fragments of stilbenes |
1450 | tannins’ υ(C = C) of the aromatic rings; C – H |
1375 | tannins’ υ(C – O); C = C; –COO group; stilbenes’ δ(OH) in the aromatic ring |
1281 | tannins’ asymmetric stretching vibration of the pyran ring |
1202 | tannins’ υ(C – O) |
1160 | tannins’ aromatic O – H |
1116 | tannins’ (C – O) |
1068 | – |
1033 | tannins’ υ(C – O); saponin’s υ(C – O – C) of glycoside linkage |
1024 | tannin’s υ(C – O) of phenolic O – H groups |
1009 | – |
963 | betacarotene’s υ(CH = CH) of trans conjugated alkene |
897 | – |
859 | – |
815 | υ(C – H) of the tannins aromatic rings; thymol’s aromatic ring |
780 | υ(C – H) of the tannins aromatic rings; thymol’s aromatic ring |
LEUCAENA EXTRACT [59[59] MALACARNE, M., ANTONIOLLI, G., BERTOLDI, D., et al., “Botanical origin characterisation of tannins using infrared spectroscopy”, Food Chemistry, v. 267, pp. 204–209, Nov. 2018. doi: http://dx.doi.org/10.1016/j.foodchem.2017.06.131. PubMed PMID: 29934158. https://doi.org/10.1016/j.foodchem.2017.... ,60[60] RICCI, A., PARPINELLO, G.P., OLEJAR, K.J., et al., “Attenuated Total Reflection Mid-Infrared (ATR-MIR) spectroscopy and chemometrics for the identification and classification of commercial tannins”, Applied Spectroscopy, v. 69, n. 11, pp. 1243–1250, Nov. 2015. doi: http://dx.doi.org/10.1366/15-07957. PubMed PMID: 26647047. https://doi.org/10.1366/15-07957... ,65[65] MAITERA, O.N., CHUKKOL, I.B., “Phytochemical and fourier transform infrared spectroscopy analysis of faidherbia albida (Del)as a preservative agent”, World Journal of Research and Review, v. 3, n. 3, pp. 25–29, 2016.,66[66] HENECZKOWSKI, M., KOPACZ, M., NOWAK, D., et al., “Infrared spectrum analysis of some flavonoids”, Acta Poloniae Pharmaceutica, v. 58, n. 6, pp. 415–420, 2001. PubMed PMID: 12197612.,67[67] MITTAL, N., MATTU, P., KAUR, G., “Extraction and derivatization of Leucaena leucocephala (Lam.) galactomannan: optimization and characterization”, International Journal of Biological Macromolecules, v. 92, pp. 831–841, Nov. 2016. doi: http://dx.doi.org/10.1016/j.ijbiomac.2016.07.046. PubMed PMID: 27492556. https://doi.org/10.1016/j.ijbiomac.2016.... ,68[68] MANSUR, N.F., MEGAT HANAFIAH, M.A.K., ISMAIL, M. “Adsorption of Pb(II) ions on sulfuric acid treated leucaena leucocephala leaf powder”, MATEC Web of Conferences, v. 27, pp. 03002, Oct. 2015. doi: https://doi.org/10.1051/matecconf/20152703002 https://doi.org/https://doi.org/10.1051/... ,69[69] KANAGAMANI, K., MUTHUKRISHNAN, P., ILAYARAJA, M., et al., “Synthesis of Leucaena mediated silver nanoparticles: Assessing their photocatalytic degradation of Cr (VI) and in vitro cytotoxicity against DLA cells”, Journal of Photochemistry and Photobiology A Chemistry, v. 346, pp. 470–478, Sep. 2017. doi: http://dx.doi.org/10.1016/j.jphotochem.2017.06.021 https://doi.org/10.1016/j.jphotochem.201... ] |
|
3324 | υ(–OH) group |
2920 | υ(CH–) of alkane |
2849 | υ(C – H) |
1597 | amino and aromatic δ(C = C) (including flavonoids) |
1509 | flavonoids aromatic vibration; tannins υ(C – O) |
1462 | flavonoids vibration |
1453 | υ(C = C) |
1421 | – |
1375 | tannins υ(C – O) |
1326, 1263, 1217, 1123 | flavonoids; υ(C – O) of alcohols, carboxylic acids, esters, and ethers |
1026 | ether υ(C – O –C) groups |
854 | υ(C – O) |
813 | flavonoids |
SAMPLE | Xc (%) |
---|---|
PVA | 17,92 |
PVA-lavender | 27,93 |
PVA-barbatimao | 24,65 |
PVA-Leucaena | 25,72 |
PVA-aloe vera | 16,91 |