Pineapple (Ananás comosus) leaves ash as a solid base catalyst for biodiesel synthesis

Barros, Silma de S.; Pessoa, Wanison A.G.; Sá, Ingrity S.C.; Takeno, Mitsuo Lopes; Nobre, Francisco Xavier; Pinheiro, William; Manzato, Lizandro; Iglauer, Stefan; Freitas, Flávio A. de

doi:10.1016/j.biortech.2020.123569

Cited by 77 publications

(54 citation statements)

References 40 publications

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“…The ash content showed a high amount in the açaí seeds, and as the seeds present a high number in the percentage of potassium seen through the XRF analysis, this material has several applications, among them it can be applied as a catalyst in studies in the biodiesel synthesis (Barros et al, 2020;. The moisture content (7.17%) presented was similar to that observed in other studies (Table 2).…”

Section: Chemical and Physical Analysissupporting

confidence: 83%

“…(Gabriel et al, 2020a). Similar results were observed for açaí (Buratto et al, 2021;Melo et al, 2021) and other lignocellulosic residues (de S. Barros et al, 2020;. It is worth mentioning that the concentration of these elements can vary depending on several factors: location of where the plant is inserted, climate, soil, temperature, and humidity.…”

Section: X-ray Fluorescence (Xrf)supporting

confidence: 79%

“…The main sectors that try to make use of açaí seeds are energy generation and agribusiness, where they are used in boilers and as fertilizers for the soil, but are not able to use the large volume of waste generated (Queiroz et al, 2020). Thus, an immense amount of waste is usually incinerated, resulting in the formation of gases that contribute to the greenhouse effect (de S. Barros et al, 2020), or erroneously discarded, polluting soil and groundwater, as well as causing the proliferation of diseases and pests (Sato et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Sementes de açaí (Euterpe precatoria Mart.) como uma nova fonte alternativa de celulose: Extração e caracterização

Barros¹,

Oliveira²,

Pessoa³

et al. 2021

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O açaí (Euterpe precatoria Mart.) é uma planta amplamente cultivada na região norte do Brasil. Seus frutos vêm ganhando destaque mundial devido aos inúmeros benefícios para a saúde humana. Consequentemente, a produção de celulose aumentou consideravelmente nos últimos anos, gerando uma quantidade significativa de resíduos (principalmente sementes). Como esses resíduos não têm uma destinação adequada, eles são descartados no meio ambiente ou incinerados, causando inúmeros impactos ambientais. Com o objetivo de apresentar alternativas de aplicação desses resíduos, este trabalho teve como objetivo avaliar o conteúdo lignocelulósico das sementes de açaí - extratos, cinzas, lignina, celulose (α-celulose e hemicelulose) - além de extrair e caracterizar a celulose obtida desse abundante resíduo. As sementes e a celulose extraída foram caracterizadas por diversas técnicas: fluorescência de raios X (XRF), difração de raios X (XRD), refletância total atenuada com espectroscopia de infravermelho por transformada de Fourier (ATR / FTIR) e termogravimetria (TGA). Neste estudo, foi confirmado o alto potencial do uso da semente de açaí como fonte alternativa de celulose, uma vez que apresenta 45,5% desse polímero e todas as técnicas de caracterização mostram a pureza da celulose extraída (tipo I).

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Section: Chemical and Physical Analysissupporting

confidence: 83%

Section: X-ray Fluorescence (Xrf)supporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

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Sementes de açaí (Euterpe precatoria Mart.) como uma nova fonte alternativa de celulose: Extração e caracterização

Barros¹,

Oliveira²,

Pessoa³

et al. 2021

RSD

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“…In another study, waste peanut husk calcined at the temperature of 900 °C for 2 h and further modified with Li2CO3 was effectively employed as a solid catalyst for transforming soybean oil into biodiesel [36]. Even pineapple leaf ash has been used for heterogeneous catalyst development after simple calcination and was employed for converting soybean oil into biodiesel, achieving a 98% yield [37]. In another report, Tectona grandis leaves were calcined at 700 °C to synthesize a solid catalyst and this was applied in the transformation of waste cooking oil into biodiesel with a 100% yield [38].…”

Section: Evolution and Development Of Agricultural Wastes-derived Catalystmentioning

confidence: 99%

Application of Agricultural Waste as Heterogeneous Catalysts for Biodiesel Production

et al. 2021

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In this modern era, it has become essential to transform waste materials into valuables because of their excessive availability, along with achieving the targets of environmental protocols and waste management policies. With a growing population, the utilization and consumption of agricultural products have been increased extensively. In addition, it has increased the probability of agricultural waste generation. Waste produced from agricultural sources is considered as a viable source for synthesizing economical and ecofriendly catalysts and suitable ways for its disposal are sought. This study is targeted at agricultural waste-derived heterogeneous catalysts, which have been effectively employed for biodiesel generation. The types of agricultural waste, catalyst synthesis techniques, recent literature stated for agricultural waste-derived catalysts to produce biodiesel, the elemental composition and catalytic activity of agricultural waste ashes, the effect of reaction parameters to maximize biodiesel yield and catalyst reusability have been discussed. This work concludes that catalysts derived from agricultural waste are efficient in transesterification reaction, and they are easy to produce, and are cheap and ecofriendly. Moreover, this study encourages researchers to see the options for unexplored agricultural waste, which can be potentially converted into useful materials

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“…These natural products were extracted and utilized for food supplements [13,14]. Other applications of these natural products for the advanced materials have been also evaluated such as for solid catalyst [15,16] and aerogel material [17]. Although honey pineapple gives a remarkable application, in contrast, utilization of its fruit peel is rarely investigated and the peel is usually wasted since the benefit is unexplored.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopy Study of Honey Pineapple Peels Extracted in Different Solvents

Kurniawan¹,

Setiyono²,

Adhiwibawa³

et al. 2021

Indones. J. Nat. Pigm.

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In the present work, we investigated the extract of honey pineapple peels in distilled water, ethanol, and acetone solvents. The spectroscopy study of each extract was performed using a Fourier transform infrared (FTIR) spectrometer, an ultraviolet-visible (UV-Vis) spectrophotometer, and a spectrofluorometer. The FTIR spectrum of the distilled water extract indicated that the distilled water extract may contain alcohol or carboxylic acid compounds. Meanwhile, the ethanolic extract may contain alcohol or carboxylic acid, or ether compounds. On the other hand, the acetone extract may contain alcohol or ether or aromatic or aliphatic compounds. The UV-Vis spectrum of the honey pineapple peels extracted in the distilled water, ethanol, and acetone showed a broad absorption signal at UV region (< 300 nm), four absorption signals at UV region (232-368 nm), and four absorption signals at UV region (231-368 nm) with a weak absorption signal at the visible region at 559 nm, respectively. The distilled water and acetone extracts gave fluorescence signals, however, the ethanolic extract showed no fluorescence intensity. From the FTIR, UV-Vis, and fluorescence spectra characterization, the extracted natural pigments from the honey pineapple peels in distilled water, ethanol, and acetone solvents were identified. The distilled water extract may contain polar flavonoid or steroid compounds while the ethanolic extract may contain polar carotenoid pigments. On the other hand, the acetone extract may contain carotenoid and chlorophyll pigments as shown by an emission signal at 670 nm.

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Pineapple (Ananás comosus) leaves ash as a solid base catalyst for biodiesel synthesis

Cited by 77 publications

References 40 publications

Sementes de açaí (Euterpe precatoria Mart.) como uma nova fonte alternativa de celulose: Extração e caracterização

Sementes de açaí (Euterpe precatoria Mart.) como uma nova fonte alternativa de celulose: Extração e caracterização

Application of Agricultural Waste as Heterogeneous Catalysts for Biodiesel Production

Spectroscopy Study of Honey Pineapple Peels Extracted in Different Solvents

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