Process optimization of microwave-assisted extraction of bioactive molecules from avocado seeds

Araújo, Rafael G.; Rodríguez-Jasso, Rosa M.; Ruiz, Héctor A.; Govea-Salas, Mayela; Pintado, Manuela; Aguilar, Cristóbal N.

doi:10.1016/j.indcrop.2020.112623

Cited by 69 publications

(31 citation statements)

References 42 publications

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“…The polarity dependent increase in DPPH radical scavenging capacity indicates the extraction of strong antioxidant compounds in polar solvents. The variation in seed oil antioxidant capacity due to solvent polarity was also reported by Araujoa et al. (2014) .…”

Section: Processing Factors Affecting Quality Attributes Of Edible Frsupporting

confidence: 58%

“…(2014) also observed that oil extraction technique significantly affect the extracted oil TPC. Furthermore, Araujoa et al. (2014) assessed the effect of microwave assisted solvent extraction of bioactive compounds from avocado seeds and found out that a temperature of 50 °C, extraction time of 30 min and 50 % ethanol were the optimum conditions for higher TPC (70 mg GAE/g dry seed).…”

Section: Processing Factors Affecting Quality Attributes Of Edible Frmentioning

confidence: 99%

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Fatty acid composition, bioactive phytochemicals, antioxidant properties and oxidative stability of edible fruit seed oil: effect of preharvest and processing factors

Kaseke

Opara

Fawole

2020

Heliyon

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Fruit seed is a by-product of fruit processing into juice and other products. Despite being treated as waste, fruit seed contains oil with health benefits comparable or even higher than the conventional seed oil from field crops. In addition to essential fatty acids, the fruit seed oil is a rich source of bioactive compounds such as tocopherols, carotenoids, flavonoids, phenolic acids and phytosterols, which have been implicated in the prevention of chronic and degenerative diseases such as cancer, diabetes and cardiovascular diseases. The emerging potential of fruit seed oil application in food and nutraceuticals has prompted researchers to study the effect of preharvest and processing factors on the seed oil quality with respect to nutritional qualities, antioxidant compounds and properties. Herein, the effect of cultivar, fruit-growing region, seeds pretreatment, seeds drying and seed oil extraction on tocopherols, polyphenols, phytosterols, carotenoids, fatty acids, antioxidant activity and oxidative stability of the fruit seed oil is critically discussed. Understanding the influence of these factors on seed oil bioactive phytochemicals, nutritional qualities and antioxidant properties is critical not only for genetically improving the oilseeds plants with desired characteristics, but also in seed oil processing and value addition. Therefore, preharvest and processing factors are essential considerations when determining the application of fruit seed oil.

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Section: Processing Factors Affecting Quality Attributes Of Edible Frsupporting

confidence: 58%

Section: Processing Factors Affecting Quality Attributes Of Edible Frmentioning

confidence: 99%

Fatty acid composition, bioactive phytochemicals, antioxidant properties and oxidative stability of edible fruit seed oil: effect of preharvest and processing factors

Kaseke

Opara

Fawole

2020

Heliyon

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“…Concerning the technology, some authors have investigated the feasibility of microwave-assisted extraction [82,83] and accelerated solvent extraction [84] as thermal-type extractions, and ultra-sound assisted extraction [79,83] and supercritical CO 2 extraction (with ethanol as co-solvent) [85] as non-thermal procedures ( Table 5). These techniques require shorter processing times, less energy, and considerably lower amounts of chemicals or solvents.…”

Section: Phenolic Compoundsmentioning

confidence: 99%

“…Among them, supercritical CO 2 extraction and microwave-assisted extraction seem to have a higher efficiency to solubilize the phenolic compounds from the peel and stone, while the highest purity of the extracts were reached using Soxhlet extraction with water for the peel and microwave-assisted extraction with 70% acetone for the stone. The latter is characterized to be a fast and efficient extraction method due to the rapid heat generation by the microwaves energy, which causes destruction of the cellular matrix to release phenolic compounds, with extraction times lower than 20 min [82,83]. Furthermore, in a recent work, another strategy was followed to recover phenolic compounds from the pomace part, i.e., using aqueous two-phase systems, based on two immiscible liquid phases.…”

Section: Phenolic Compoundsmentioning

confidence: 99%

Avocado-Derived Biomass as a Source of Bioenergy and Bioproducts

2020

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The avocado (Persea americana Mill.) is a tree native to Mexico and Guatemala. Avocado consumption, fresh or in the form of processed products, is growing everywhere and it has caused a large number of countries to invest heavily in avocado production. The industrialization of avocado gives as a result a huge amount of waste, not only the peel and stone but also that waste generated by the pruning practices and oil extraction. These biomasses could be converted into raw materials to obtain different types of co-products, but this implies changes in the use of these resources, the design of efficient production systems, and integration to take full advantage of them, e.g., by developing biorefinery models. Therefore, this review firstly gives a snapshot of those residues generated in the avocado industry and provides their chemical composition. Secondly, this review presents updated information about the valorization ways of avocado-derived biomass to obtain bioenergy, biofuels, and other marketable products (starch, protein, phenolic compounds, and biosorbents, among others) using a single process or integrated processes within a biorefinery context. Green technologies to obtain these products are also covered, e.g., based on the application of microwaves, ultrasound, supercritical fluids, etc. As a conclusion, there is a variety of ways to valorize avocado waste in single processes, but it would be promising to develop biorefinery schemes. This would enable the avocado sector to move towards the zero-waste principle.

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“…Moreover, microwaveassisted extraction using aqueous solutions of acetone and ethanol showed high TPC and antioxidant activity. [20] GAE, gallic acid equivalents; RE, rutin equivalents; TE, Trolox equivalents.…”

Section: Bioactive Propertiesmentioning

confidence: 99%

Therapeutic Bio-Compounds from Avocado Residual Biomass

García-Vargas

Contreras

Castro

2020

The 1st International Electronic Conference on Biomolecules: Natural and Bio-Inspired Therapeutics for Human Diseases

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Since ancient times, plants have been used as preservatives, spices, flavorings and as natural remedies to prevent or treat diseases owing to the biological activity correlated with the bioactive compounds they contain. The avocado fruit (Persea americana), native to Mexico and Guatemala, has been traditionally used for its pleasant organoleptic characteristics, high nutritional value and health benefits, but its residual biomass (seeds, skin and tree leaves) is also valuable in therapeutic terms. For this reason, the present investigation reviews the pharmacological potential of avocado waste. It can serve as a source of antioxidants, as well as hypotensive, anti-analgesic, photoprotective, antibacterial, and anti-inflammatory agents, and can be used to treat skin disorders. The main active components seem to be phenolic compounds. The content of phenolic compounds in waste extracts varied from 6 to 307 g/kg dry weight, depending on the waste type and extraction conditions, among others. In particular, our results suggested that using water as a solvent, a high amount of phenolic compounds can be obtained from the peel (266 g/kg dry weight), and this was correlated with major antioxidant activity. Therefore, the peels can be applied to obtain antioxidants, and water can be used as an environmentally friendly extraction solvent to obtain various valuable compounds of its chemical composition for food and pharmacological applications.

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Process optimization of microwave-assisted extraction of bioactive molecules from avocado seeds

Cited by 69 publications

References 42 publications

Fatty acid composition, bioactive phytochemicals, antioxidant properties and oxidative stability of edible fruit seed oil: effect of preharvest and processing factors

Fatty acid composition, bioactive phytochemicals, antioxidant properties and oxidative stability of edible fruit seed oil: effect of preharvest and processing factors

Avocado-Derived Biomass as a Source of Bioenergy and Bioproducts

Therapeutic Bio-Compounds from Avocado Residual Biomass

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