Infrared absorption spectra of Buriti (Mauritia flexuosa L.) oil

Albuquerque, M.L.S.; Guedes, I.; Alcántara, P.; Moreira, S. G. C.

doi:10.1016/s0924-2031(03)00098-5

Cited by 82 publications

(65 citation statements)

References 23 publications

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“…Other studies have demonstrated that the main fluorophores of biodiesel are the same as those of vegetable oil. 7,8,[18][19][20] This way, chlorophyll contributes to biodiesel fluorescence between 665 and 675 nm. 12 Magalhães et al 20 detected the presence of chlorophyll in soybean biodiesel when the sample was excited at 532 nm.…”

Section: Resultsmentioning

confidence: 99%

“…It was also possible to observe that the spectrum of the patterns of β-carotene features fluorescence ranging from 500 to 700 nm. Albuquerque et al 18 characterized Buriti oil and stated that, when the oils go through the transesterification process, Figure 1. Fluorescence emission spectra of soybean oil (A), biodiesel (B), and β-carotene (C) at 468 nm excitation.…”

Section: Resultsmentioning

confidence: 99%

“…[18][19][20] Magalhães et al 20 showed that the methyl linolenate standard, when excited between 280 and 330 nm, emits fluorescence between 350-575 nm and maximum at 410 nm, and α-tocopherol diluted in n-hexane, when excited between 280 and 440 nm, exhibit a fluorescence band between 300 and 400 nm. They attributed the fluorescence of soybean and canola biodiesel to the presence of conjugated tetraenes with two less intense absorption bands at 302 and 316 nm.…”

Section: Resultsmentioning

confidence: 99%

“…This band was also observed in the soybean biodiesel, but with a shift to 1740 cm -1 , because, when the transesterification reaction occurs, the absorption band of triacylglycerol at 1743 cm -1 is shifted to lower wavenumbers (lower energy) due to the formation of methyl esters of smaller chains than those of starting tri-esters present in oils. 8,18,19 In the spectrum of patterns of β-carotene, the weak absorption band at 3436 cm -1 resulted from β-carotene trans-CH=CH bond. The 2863 cm -1 band was due to CH stretching, the 1623 cm -1 band was due to asymmetric deformation, and the 1337 cm -1 band resulted from the symmetric deformation mode of the C−H group.…”

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Separation and Identification of Functional Groups of Molecules Responsible for Fluorescence of Biodiesel Using FTIR Spectroscopy and Principal Component Analysis

Silva

Quintella

Meira

2017

J. Braz. Chem. Soc.

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In order to separate and identify functional groups of molecules responsible for fluorescence compounds present in biodiesel, a column chromatography coupled with infrared spectroscopy and multivariate analysis was performed. A biodiesel sample was packed in a chromatographic column and the fractions obtained were used to perform the analyses. Before undergoing the separation process, the biodiesel sample was analyzed by light emitting diode (LED)-induced fluorescence and compared its spectrum with β-carotene and soybean oil patterns. The low cost and speed of analysis suggest that this technique can be used in the separation of biodiesel substances. The fluorescence emission spectra allowed identifying molecules such as β-carotene, in which the spectrum of its pattern exhibited fluorescence within a region ranging from 500 to 700 nm and chlorophyll molecules. When soybean oil is excited at around 405 nm, it features a fluorescent emission band within the region of 670 nm, which reveals the presence of chlorophyll. Infrared spectroscopy coupled with principal component analysis allowed to discriminate the fractions and to identify the functional groups of compounds present in the sample.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Separation and Identification of Functional Groups of Molecules Responsible for Fluorescence of Biodiesel Using FTIR Spectroscopy and Principal Component Analysis

Silva

Quintella

Meira

2017

J. Braz. Chem. Soc.

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“…Buritizeiro has a great cultural and economic value for the peoples of the regions where it is developed, since it provides a huge variety of products and uses, supporting or supplementing the income of several families, especially the Brazilian cerrado. It occurs in places where the soil is soaked, even in the dry season, thus being a source of clean water for people and animals [56,57]. Buriti (Mauritia flexuosa) is a plant typically found in the Amazon rainforest and is considered one of the most abundant palm trees in the country.…”

Section: Buriti (Mauritia Flexuosa L) General Characteristics Of Thementioning

confidence: 99%

Application of Chitosan and Buriti Oil (Mauritia Flexuosa L.) in Skin Wound Healing

Rfj

Pighinelli

2017

JABB

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Wound is the breakdown of the structure and normal functions of the integument and its healing process. The wound healing process is common to all tissues and is characterized by three stages: inflammation, proliferation (fibroblast phase) and remodelling. Many substances are used to improve and accelerate this process. A polymer that comes to the attention of researchers is chitosan, which is obtained by the deacetylation of chitin. Another substance that shows good results in the healing process is buriti oil, extracted mainly from the fruit bulb of Mauritia flexuosa L. The main objective of this study is to demonstrate through bibliographical research the effects of chitosan and buriti oil on healing, as well as describing the process of obtaining chitosan and buriti oil and characterizing chitosan and buriti oil. This is an exploratory study where the bibliographical review was used as technical procedure. For the elaboration of the study, we used scientific materials already published, consisting mainly of theses, dissertations, books, articles of scientific journals and annals of scientific congresses, observing the temporal limits between 2000 and 2016. A potential use of chitosan and oil of buriti in the healing of cutaneous wounds since they presented good results in all the phases of tissue repair. Chitosan has been characterized as being biodegradable, biocompatible has free amine groups thus becoming well reactive, the oil has an orange-coloured liquid, rich in carotenoids (β-carotene), α-tocopherol (vitamin E) And fatty acids. It is expected that this study can serve as a reference for studies on these substances, as well as that they can be used together in order to potentiate their effects on the healing process.

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Refining and Sulfurization of Oil from Black Soldier Fly and Its Application as Biodegradable Lubricant Additive

Xiong

Mao

Wang

et al. 2020

J Americ Oil Chem Soc

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Black soldier fly (BSF, Hermetia illucens), a high lipid containing insect, is considered as a promising candidate for bioconversion of restaurant waste in China. The fresh oil extracted from BSF larvae were refined by degumming, alkaline neutralization, and absorption decolorization. The gas chromatography-mass spectrometry analysis showed that 12:0, 16:0, 18:1, and 18:2 were the main fatty acids, which accounted for more than 80% of the refined BSF oil. Odorless sulfurized BSF oil was synthesized, and the tribological behaviors of the sulfurized BSF oil as a biodegradable additive in base oil 150 N and pure poly-alphaolefin PAO4 were evaluated in comparison with the commonly used sulfurized lard by means of four-ball friction and wear testers. The formation of C S bond in the vulcanized oil molecules was confirmed by FTIR analysis. Sulfurized BSF oil showed superior load-carrying capacity and friction-reducing ability compared with sulfurized lard.

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Infrared absorption spectra of Buriti (Mauritia flexuosa L.) oil

Cited by 82 publications

References 23 publications

Separation and Identification of Functional Groups of Molecules Responsible for Fluorescence of Biodiesel Using FTIR Spectroscopy and Principal Component Analysis

Separation and Identification of Functional Groups of Molecules Responsible for Fluorescence of Biodiesel Using FTIR Spectroscopy and Principal Component Analysis

Application of Chitosan and Buriti Oil (Mauritia Flexuosa L.) in Skin Wound Healing

Refining and Sulfurization of Oil from Black Soldier Fly and Its Application as Biodegradable Lubricant Additive

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