Obtaining and characterization of anthocyanins from Euterpe oleracea (açaí) dry extract for nutraceutical and food preparations

Silva, Heitor Ribeiro da; Assis, Daniele da Cruz de; Prada, Ariadna Lafourcade; Silva, José Otávio Carrera; Sousa, Mayara Brito de; Ferreira, Adriana Maciel; Amado, Jesús Rafael Rodríguez; Carvalho, Helison de Oliveira; Santos, Abrahão Victor Tavares de Lima Teixeira dos; Carvalho, José Carlos Tavares

doi:10.1016/j.bjp.2019.03.004

Cited by 32 publications

(8 citation statements)

References 21 publications

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“…The commercial anthocyanin (CA) was obtained from the Osenai brand, China. The total monomeric anthocyanin content in CA was determined as 5.29 mg/g by pH-differential assay [ 46 ]. Buffer solutions from pH 1 to pH 12, acetic acid, ethanol (96%), calcium chloride, magnesium nitrate, and glycerol were purchased from R&M Chemicals, Malaysia.…”

Section: Methodsmentioning

confidence: 99%

Characterization of Anthocyanin Associated Purple Sweet Potato Starch and Peel-Based pH Indicator Films

Sohany

Tawakkal

Ariffin

et al. 2021

Foods

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In food packaging, smart indicator films based on natural resources have greatly attracted researchers to minimize the environmental issues as well as to satisfy consumer preferences for food safety. In this research, pH-sensitive films were prepared using purple-fleshed sweet potato starch (SPS) and sweet potato peel (SPP). Two categories of the film (i) SPS and (ii) SPS/SPP, were fabricated via solvent casting technique, incorporating different concentrations of commercial purple sweet potato anthocyanin (CA) at 0%, 1%, 1.5%, and 2% (w/v) and the physicochemical, mechanical, thermal, and morphological properties of the films were investigated. The thickness, water solubility, and swelling degree of the films increased with the increment of CA, whereas there were no significant changes in the water content (WC) of the films. Water vapor permeability (WVP) was decreased for SPS films while statistically similar for SPS/SPP films. The addition of CA reduced the tensile strength (TS) and tensile modulus (TM) yet increased the elongation at break (EaB) of the films as compared to films without CA. The FTIR results confirmed the immobilization of anthocyanin into the film. In SEM images, roughness in the surfaces of the CA-associated films was observed. A reduction of thermal stability was found for the films with anthocyanin except for the SPS/SPP CA 2% film. Furthermore, the CA-associated films showed a remarkable color response when subjected to pH buffers (pH 1 to 12) and successfully monitored chicken freshness. The fastest color migration was observed in acidic conditions when the films were immersed into aqueous, acidic, low fat, and fatty food simulants. The findings of this work demonstrated that the developed pH indicator films have the potential to be implemented as smart packaging to monitor food freshness and quality for safe consumption.

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Section: Methodsmentioning

confidence: 99%

Characterization of Anthocyanin Associated Purple Sweet Potato Starch and Peel-Based pH Indicator Films

Sohany

Tawakkal

Ariffin

et al. 2021

Foods

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“…Figure 3 shows the results obtained for PD, nanoclays (MMT, HT) and ATM13-ATM19 and ATH1 hybrid samples, as an example (similar results were obtained for the rest of the developed MMT and HT-based PDNPs). In the case of PD, different thermal events were observed with peak temperatures ranging between 100 and 235 • C, which were associated to the loss of surface water and volatile low molar mass components of the dye (approximately 12 wt% of the initial mass) [49]. Other losses were also observed at temperatures around 235 • C and 440 • C, which were probably related to the loss of organic material and thermal decomposition of the different components present in PD [50] which were degraded to phenolic acids and aldehydes by deglycosylation and ring opening reactions [51].…”

Section: Codementioning

confidence: 99%

Anthocyanin Hybrid Nanopigments from Pomegranate Waste: Colour, Thermomechanical Stability and Environmental Impact of Polyester-Based Bionanocomposites

et al. 2021

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In the present work, anthocyanin (ACN) hybrid nanopigments were synthetized by using a natural pomegranate dye (PD) and calcined hydrotalcite (HT) and montmorillonite (MMT) nanoclays. A wide colour gamut was obtained with MMT-based nanopigments ranging from reddish to bluish hues caused by structural transformations of ACNs at different pH values. However, a buffer effect was observed with HT obtaining samples a similar final colour regardless of the synthesis conditions. Nanopigments added with a biomordant extracted from pomegranate peels showed a different colour compared to the incorporation of a commercial mordant due to the intrinsic colouring properties of the pomegranate bioadditive. The developed nanopigments were incorporated at 7 wt% loading to produce novel polyester-based bionanocomposites which were characterized in terms of thermal, mechanical and colour properties. The encapsulation of PD into the nanoclays improved its thermal stability, in particular for MMT-based nanopigments. The pH changes observed during the nanofillers synthesis affected the final colour of the MMT-based nanocomposites, inducing a general increase in ∆E* and a decrease in gloss values. Slight improvements were obtained in terms of elastic modulus for MMT-based polymer samples confirming the applicability of the developed bionanocomposites as colouring and reinforcement materials. A very similar environmental profile was obtained for MMT and HT-based nanofillers showing MMT-based nanopigments a slightly better general behaviour. The results of the LCA study evidenced the suitability of the processes used in this work to the circular bioeconomy approach through sustainable food waste management and the production of bioplastics using waste substrates.

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“…Legend: A = Astrocaryum aculeatum Meyer Pers [88]; D = Euterpe oleracea Mart [89]; E = Eugenia stipitata = Myrciaria dubia (HBK) McVaugh [92]; H = Paullinia cupana and J = Theobroma grandiflorum…”

Section: Fig 2 General Vision Of the Fruits Native Of Amazon Regionmentioning

confidence: 99%

“…Meyer [86]; B = Bactris gasipaes Kunth [87]; C = Caryocar villosum [89]; E = Eugenia stipitata MacVaugh [90]; F = Mauritia flexuosa L. f. [91]; G [92]; H = Paullinia cupana Kunth [93]; I = Solanum sessiliflorum and J = Theobroma grandiflorum (Wild. ex Spreng.)…”

Section: General Vision Of the Fruits Native Of Amazon Regionmentioning

confidence: 99%

Antioxidant, Hypoglycemic and Neuroprotective Activities of Extracts from Fruits Native to the Amazon Region: A Review

Yamaguchi

Souza

2020

BJI

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The Amazon forest has the largest biome on the planet, and it is estimated that only 16 to 20% of the identified animal, and plant biodiversity. Considering plant diversity, we will highlight the biological properties of the fruits extracts of Arecaceae, Caryocaraceae, Malvaceae, Myrtaceae, Sapindaceae, and Solanaceae’s families due to their significant biological actions. This review presents the antioxidant, glycemic control, and neuroprotective activities from ten fruit extracts distributed in six botanical families in the Amazon region. We obtained 801 publications (described from 2010 to 2020), of which 64 articles were selected by the benchmark previously chosen. The antioxidant effect was the dominant effect observed in the studies used for this review, followed by glycemic control and protective actions in neurons. This review provides a synopsis of the recent literature exploring the extracts from native fruits to the Amazon region that could efficiently prevent pathologies associated with oxidative stress, and cellular maintenance mechanisms.

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Obtaining and characterization of anthocyanins from Euterpe oleracea (açaí) dry extract for nutraceutical and food preparations

Cited by 32 publications

References 21 publications

Characterization of Anthocyanin Associated Purple Sweet Potato Starch and Peel-Based pH Indicator Films

Characterization of Anthocyanin Associated Purple Sweet Potato Starch and Peel-Based pH Indicator Films

Anthocyanin Hybrid Nanopigments from Pomegranate Waste: Colour, Thermomechanical Stability and Environmental Impact of Polyester-Based Bionanocomposites

Antioxidant, Hypoglycemic and Neuroprotective Activities of Extracts from Fruits Native to the Amazon Region: A Review

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