Purification and Characterization of Colophony Extracted of Pinus elliottii (Engelm, var. elliottii)

Correa, Jamille S.; Santos, Rafaella Ribeiro dos; Anaissi, Fauze Jacó

doi:10.17807/orbital.v10i3.1100

Cited by 7 publications

(24 citation statements)

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“…The mention peeks are consistent with the presence of resinous acids 33 and were previously reported by other researchers 32,33,35,36 . As seen in Figure 3, the five spectra resemble each other as the chemical composition of gum rosins are close to each other.…”

Section: Resultssupporting

confidence: 89%

“…This band corresponds to the overtone stretching of the carboxyl group 35 . The characteristic band of carboxylic acid bonding ν(C═O) is observed at 1694 cm −1 9,33 . Finally, in the fingerprint region, between 1500 and 600 cm −1 , the absorption bands found between 1200 and 800 cm −1 are characteristic of diterpenic resins, 32 while specific bands of gum rosin are at 1278 (COC) and 712 cm −1 32 .…”

Section: Resultsmentioning

confidence: 92%

“…The band corresponding to a stretching bond ν(OH) of the functional group COOH is presented as a shoulder at 3336, 3376, and 3378 cm −1 in CB, CP, and CE respectively. In CI and CA, this peak is less notorious and is found as an inflection at 3402 and 3332 cm −1 , respectively 33 . This indicates that CB, CP, and CE contain moisture from the environmental humidity 35 .…”

Section: Resultsmentioning

confidence: 93%

“…Finally, in the fingerprint region, between 1500 and 600 cm −1 , the absorption bands found between 1200 and 800 cm −1 are characteristic of diterpenic resins, 32 while specific bands of gum rosin are at 1278 (COC) and 712 cm −1 32 . Between 1500 and 1000 cm −1 , the presence of several bands related to binding stretches ν(CC) of the hydrocarbon chain of gum rosin, 33 and bonds type ν(C═C) and ν(CO) are seen with different intensity in each gum rosin 36 …”

Section: Resultsmentioning

confidence: 98%

“…The infrared spectra of the five studied gum rosins are presented in Figure 3. For analysis purposes, the spectra can be divided into four zones as follows: (a) the OH region located between 3700 and 3200 cm −1 ; (b) the carbonyl region found between 1800 and 1550 cm −1 ; (c) the CH region located between 3200 and 2400 cm −1 , and (d) the fingerprint region located between 1550 and 600 cm −1 32–34 …”

Section: Resultsmentioning

confidence: 99%

See 4 more Smart Citations

Comparative characterization of gum rosins for their use as sustainable additives in polymeric matrices

Pavón

Aldás

Hernández‐Fernández

et al. 2021

J of Applied Polymer Sci

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There is a growing interest in the use of non‐polluting compounds, which come from renewable sources, and which performance in their scope is equivalent to their synthetic similes. In this work, five types of rosins from different sources were studied, verifying the existence of differences that can be inferred in their subsequent use and application as material additives. For the study, rosins were analyzed using gas‐mass chromatographic techniques, infrared spectrophotometry (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and color characterization. The results showed that the samples are composed of either abietic acid or by its structural isomers in contents higher than 80%. FTIR shows that the main difference in the gum rosins is related to the proclivity to absorb environmental moisture and that this technique is not enough to differentiate them. Moreover, the DSC reveals that the gum rosins present enthalpy relaxation effects due to their manufacturing process. The TGA showed that gum rosins are thermally stable until 200°C, therefore they can be successfully blended with thermoplastic polymers. Finally, the color characterization shows little differences between the samples, being CA the gum rosin with the greatest total color differences.

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Comparative characterization of gum rosins for their use as sustainable additives in polymeric matrices

Pavón

Aldás

Hernández‐Fernández

et al. 2021

J of Applied Polymer Sci

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Experimental data for green synthesis of Zn-abietate complex from natural resin

et al. 2022

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This data article is associated with the work “Ecofriendly synthesis of Zn-abietate complex derived from Pinus elliottii resin and its application as an antibacterial pigment against S. aureus and E. coli ”. The characterization data of the Zn-abietate complex obtained from Pinus elliottii resin and their reactional intermediary (Na-abietate) are reported. The Na-abietate was prepared with purified Pinus resin and sodium hydroxide (≥ 99%) in a stoichiometric ratio of 1:1. For the Zn-abietate synthesis was used ZnSO 4 and Na-abietate solutions were at mild temperature and stirring without using organic solvents to ensuring the green character of the synthesis. Spectroscopic and structural characterization was consistent with an octahedral complex involving three carboxylate ligands per metal ion. X-ray photoelectron spectroscopy (XPS) analysis of the Na-abietate salt confirms the presence of carbonyl groups, carbon-oxygen atoms simple bonds (O-C/O=C), and carboxylate groups oxygen atoms (O-C=O). Analysis of the Zn LMM Auger, for the Zn-abietate complex, indicates the presence of zinc atoms with oxidation state Zn 2+ , this is supported by the distance between Zn 2p 3/2 and 1p 1/2 in the XPS spectrum. Together, these data will be useful for the structural representation of the samples.

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Digitally Controlled Printing of Bioink Barriers for Paper-Based Analytical Devices: An Environmentally Friendly One-Step Approach

Romanholo,

de Andrade,

Silva-Neto

et al. 2024

Anal. Chem.

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The patterning of hydrophilic paper with hydrophobic materials has emerged as an interesting method for the fabrication of paper-based devices (PADs). Herein, we demonstrate a digitally automated, easy, low-cost, eco-friendly, and readily available method to create highly hydrophobic barriers on paper that can be promptly employed with PADs by simply using a bioink made with rosin, a commercially available natural resin obtained from conifer trees. The bioink can be easily delivered with the use of a ballpoint pen to produce water-and organic solvent-resistant barriers, showing superior properties when compared to other methods such as wax-printing or permanent markers. The approach enables the pen to be attached to a commercially available cutting printer to perform the semiautomated fabrication of hydrophobic barriers for PADs. With the aid of digitally controlled optimization, together with features of machine learning and design of experiments, we show a thorough investigation on the barrier strength that can be further adjusted to the desired application's needs. Then, we explored the barrier sturdiness across various uses, such as wide range aqueous pH sensing and the harsh acidic/organic conditions needed for the colorimetric detection of cholecalciferol.

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Purification and Characterization of Colophony Extracted of Pinus elliottii (Engelm, var. elliottii)

Cited by 7 publications

References 0 publications

Comparative characterization of gum rosins for their use as sustainable additives in polymeric matrices

Comparative characterization of gum rosins for their use as sustainable additives in polymeric matrices

Experimental data for green synthesis of Zn-abietate complex from natural resin

Digitally Controlled Printing of Bioink Barriers for Paper-Based Analytical Devices: An Environmentally Friendly One-Step Approach

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