Produção e caracterização de óleo bruto e refinado obtido de cabeças de tilápia sob diferentes temperaturas

Teixeira, Jacyara Thaís; Albergaria, Francielly Corrêa; Schiassi, Maria Cecília Evangelista Vasconcelos; Lago, Amanda Maria Teixeira; Oliveira, Roseane Maria Evangelista; Pimenta, Carlos José; Gomes, Maria Emília de Sousa

doi:10.33448/rsd-v9i11.9837

Cited by 1 publication

(2 citation statements)

References 12 publications

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“…Peroxides are the first compounds formed during the process of oxidative degradation of oils; the measurement of the levels of these substances reflects the oxidative state of the sample 51 . These substances are generally considered as peroxides or similar products resulting from the oxidation of fat or oil 49 .…”

Section: Resultsmentioning

confidence: 99%

“…46 Peroxides are the first compounds formed during the process of oxidative degradation of oils; the measurement of the levels of these substances reflects the oxidative state of the sample. 51 These substances are generally considered as peroxides or similar products resulting from the oxidation of fat or oil. 49 For cupuaçu butter, we found a PI of 2.40 meq Kg −1 , lower than the observed for murumuru and pracaxi butters (5 and 4 meq Kg −1 , respectively).…”

Section: Cupuaçu Butter Characterizationmentioning

confidence: 99%

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Eco‐friendly biodiesel production using passion fruit peels and cupuaçu seeds: Catalyst development and process optimization

Barros,

Nobre,

Lobo

et al. 2023

Biofuels Bioprod Bioref

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Yellow passion fruit peel and cupuaçu seeds are common wastes. Usually, they have few or no applications and are discarded, causing environmental pollution. To use them in a new way and reduce ecological pollution, we obtained the ash of yellow passion fruit peels by calcination. We characterized it using Fourier‐transform infrared spectroscopy with attenuated total reflectance (FTIR‐ATR), X‐ray fluorescence (XRF), X‐ray diffractometry (XRD), adsorption‐desorption of N2, scanning electron microscopy (SEM), basicity, and soluble alkalinity. It was observed that the ash was mainly composed of potassium (69%) in the form of carbonate, chloride, and sulfate, with a good surface area (11.23 m2 g−1). The cupuaçu butter was also extracted from the cupuaçu seeds and characterized, showing low acidity, peroxide, saponification, and iodine indexes, in addition to presenting a lipid profile with 57% saturated fatty acid and 43% unsaturated fatty acid. Oleic and stearic acids were present in higher proportions. These results demonstrate that this butter can be a sustainable input in biodiesel production. Thus, the ash was used as a heterogeneous catalyst in the butter transesterification. The biodiesel synthesis was optimized, resulting in 97.8% butter conversion into biodiesel under the following conditions: reaction time of 2 h, 5 wt% of catalyst, 80 °C, and a methanol‐to‐oil molar ratio of 30. This work, therefore, shows that it is possible to obtain and utilize bioinputs, such as cupuaçu butter and passion fruit peel ash, to produce biodiesel through transesterification, and the use of waste materials (precisely passion fruit peels and cupuaçu seeds) makes this method a cost‐effective and environmentally friendly approach to biofuel production.

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Section: Resultsmentioning

confidence: 99%

Section: Cupuaçu Butter Characterizationmentioning

confidence: 99%