Improvement of bixin extraction from annatto seeds using a screen-topped spouted bed

Taham, Thiago; Silva, Danylo Oliveira; Barrozo, M. A. S.

doi:10.1016/j.seppur.2015.12.037

Cited by 18 publications

(6 citation statements)

References 31 publications

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“…On the other hand, some emerging extraction techniques such as supercritical CO 2 extraction are costly and involve high energy consumption [8]. Further, the use of mechanical methods, spouted bed, sonication, microwaves, and supercritical fluids (CO 2 ) as emerging extraction technologies, have been focused simply on the extraction of bixin and norbixin [7,9,10,11]. Most of these studies highlight the coloring capacity of the extract, and others evaluate the effect of the extraction technique on the antioxidant and antimicrobial activities separately [11,12].…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Microwave-Assisted Extraction Process of Bioactive Compounds from Annatto Seeds (Bixa orellana L.)

et al. 2019

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This study deals with the extraction, optimization, and evaluation of the antioxidant and antimicrobial activities of bioactive compounds obtained from the seeds of annatto using microwave-assisted extraction as compared to leaching. Annatto seeds were subjected to a microwave treatment of 2450 MHz and power of 700 watts using a response surface design involving four factors: pH (4–11), solvent concentration (ethanol) (50–96 %), solvent-to-seed ratio (2–10), and microwave exposure time (0–5 min). The contents of polyphenol compounds and bixin were taken as response variables. Subsequently, the antioxidant and antimicrobial activities were assessed at the optimal processing conditions predicted by the experimental design. Microwaves, solvent concentration, and the solvent-to-seed ratio showed a statistically significant effect for the extraction of polyphenol compounds and bixin. Thus, microwaves accelerated the extraction of those compounds and the slight increase in temperature caused some degradation of the polyphenol compounds. The microwave-assisted extraction increased the contents of polyphenols and bixin along with their antioxidant activity as compared to leaching extraction. However, this technique does not significantly improve the antimicrobial activity against Bacillus cereus and Staphylococcus aureus.

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Section: Introductionmentioning

confidence: 99%

Optimization of the Microwave-Assisted Extraction Process of Bioactive Compounds from Annatto Seeds (Bixa orellana L.)

et al. 2019

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“…Barrozo and collaborators [97] studied the possibility of using SBR for the extraction of natural dye from annatto (Bixa orellana). The conical-cylindrical spouted bed was equipped with a draft tube to increase the process efficiency.…”

Section: Other Processesmentioning

confidence: 99%

Review of Experimental Activities and Recent Developments of Spouted Bed Reactors at Different Operational Scales

Carozzo,

Arato,

Moliner

2024

Energies

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Recent research advances and technological developments of spouted bed reactors (SBRs) have been discussed in this work. SBR has aroused increasing interest since their invention in 1955 due to its flexibility in processing different feedstocks and the high process yields that can be achieved due to its characteristic fluid dynamics. However, even though highly satisfactory results have been obtained at the laboratory scale for different applications (i.e., drying or thermochemical reactions, among others), their full implementation at an industrial level is still scarce, mainly due to the challenges encountered for their scale-up. In this work, an initial short description of SBR and configurations is followed by a review of the main experimental activities that have been conducted at different scales in the period 2013–2023. Advanced solutions such as multi-unit reactors and the use of rectangular geometries instead of the classical cylindrical ones have arisen as potential areas for further study and development to achieve a reliable implementation of the spouted bed technology at an industrial scale.

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“…The reddish-orange pigments found on annatto seed coat were composed of 80 % bixin, norbixin, and a combination of b-carotene, cryptoxanthin, lutein, zeaxanthin, and methylbixin [3] . Bixin is a fat-soluble compound and is the major component of annatto seed extracts when oily suspensions or non-polar solvents are used during the extraction; when the extracts are obtained with an alkaline solution, the water-soluble norbixin is thus found as the main component of the extracts [4] .…”

Section: Introductionmentioning

confidence: 99%

“…Currently, the main commercial processes to obtain bixin and nor-bixin from annatto are direct extraction into oil or aqueous alkaline solution and indirect extraction with solvents [4] . However, these processes present drawbacks related to the quality of the extracts and harmful environmental impacts.…”

Section: Introductionmentioning

confidence: 99%

“…To cite, the direct extraction into oil that involves the abrasion of seeds in heated vegetable oil results in concentrated extracts but can also contain degradation products due to the high temperature used [7] . On the other hand, the extraction with aqueous alkaline solution requires several additional operations to separate the alkaline solution (usually potassium or sodium hydroxide) from the extract, which substantially increases the energy costs [8] ; the solvents mainly used to obtain bixin due to its strong solubility are acetone, chloroform, ethyl acetate, and hexane [4] , most of them with well-known harmful environmental effects.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

One-step ultrasound-assisted recovery of yellow-orange-red natural coloring from defatted annatto seeds: A cleaner processing alternative

Strieder,

Vardanega,

Moraes

et al. 2024

Ultrasonics Sonochemistry

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Improvement of bixin extraction from annatto seeds using a screen-topped spouted bed

Cited by 18 publications

References 31 publications

Optimization of the Microwave-Assisted Extraction Process of Bioactive Compounds from Annatto Seeds (Bixa orellana L.)

Optimization of the Microwave-Assisted Extraction Process of Bioactive Compounds from Annatto Seeds (Bixa orellana L.)

Review of Experimental Activities and Recent Developments of Spouted Bed Reactors at Different Operational Scales

One-step ultrasound-assisted recovery of yellow-orange-red natural coloring from defatted annatto seeds: A cleaner processing alternative

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