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. 2024 May:105:106868.
doi: 10.1016/j.ultsonch.2024.106868. Epub 2024 Apr 3.

Influence of intensity ultrasound on rheological properties and bioactive compounds of araticum (Annona crassiflora) juice

Jhenifer Cristina Carvalho Santos  1 , Jefferson Luiz Gomes Correa  2 , Maria Luiza Bianchetti Furtado  2 , Larissa Carolina de Morais  2 , Soraia Vilela Borges  2 , Cassiano Rodrigues de Oliveira  3 , Jaime Vilela de Resende  2 , Letícia Fernandes de Oliveira  4
Affiliations

Influence of intensity ultrasound on rheological properties and bioactive compounds of araticum (Annona crassiflora) juice

Jhenifer Cristina Carvalho Santos et al. Ultrason Sonochem. 2024 May.

Abstract

The use of extracts rich in bioactive compounds is becoming increasingly common in the food, cosmetics, and pharmaceutical industries for the production of functional products. Araticum is a potential fruit to be analyzed due to its content of phenolic compounds, carotenoids and vitamins, with antioxidant properties. Therefore, this study aimed to investigate the effect of ultrasound on total phenolic compounds, total carotenoids, ascorbic acid, color, turbidity and rheology in araticum juice. Response surface methodology based on a central composite design was applied. Araticum juice was subjected to sonication at amplitude levels ranging from 20 to 100 % of the total power (400 W) at a constant frequency of 20 kHz for different durations (2 to 10 min). Morphological analysis was conducted to observe microscopic particles, and viscosity and suitability to rheological models (Newtonian, Power Law, and Herschel-Bulkley) were assessed. The ultrasonic probe extraction method was compared to the control juice. According to the responses, using the desirability function, the optimal conditions for extraction were determined to be low power (low amplitude) applied in a short period of time or low power applied in a prolonged time. These conditions allowed an ultrasonic probe to act on releasing bioactive compounds without degrading them. All three rheological models were suitable, with the Power Law model being the most appropriate, exhibiting non-Newtonian pseudoplastic behavior.

Keywords: Carotenoids; Phenolic compounds; Response surface methodology; Ultrasound-assisted extraction method.

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Conflict of interest statement

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Figures

None
Graphical abstract
Fig. 1
Fig. 1
Response surfaces for the total phenolic compounds (TPC) content in araticum juice as a function of power and processing time.
Fig. 2
Fig. 2
Response surfaces for total carotenoids (TC) in araticum juice as a function of power and processing time.
Fig. 3
Fig. 3
Medium ascorbic acid (AA) for each tested condition.
Fig. 4
Fig. 4
Response surfaces for TCD of araticum juice as a function of power and processing time (A) and response surfaces for the b* parameter of araticum juice as a function of power and processing time (B).
Fig. 5
Fig. 5
Response surfaces for turbidity of araticum juice as a function of power and processing time.
Fig. 6
Fig. 6
Optical micrograph of araticum juice. A - Control without maltodextrin; B - Control with maltodextrin; C - Assay 5; and D - Assay 4.
Fig. 7
Fig. 7
Rheograms of araticum extracts. Relationship between apparent viscosity and shear rate.
Fig. 8
Fig. 8
Optimal response surfaces of araticum juice as a function of power and processing time based on the obtained responses.
See this image and copyright information in PMC

References

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