scholarly journals Ultrasound-assisted extraction of Psyllium mucilage: evaluation of functional and technological properties

2020 ◽  
pp. 238
Author(s):  
Gabriela Sena Souza ◽  
Rita de Cassia Bergamasco ◽  
Ana Paula Stafussa ◽  
Grasiele Scaramal Madrona
Keyword(s):  
Purchase Intention ◽  
Water Solubility ◽  
Ice Cream ◽  
Melting Process ◽  
Absorption Capacity ◽  
Technological Properties ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Significant Difference ◽  
First Time

 The objective of this work was to optimize the extraction of psyllium mucilage and to evaluate its functional and technological properties, aiming for the first time the use in ice cream. A factorial design was carried out to test different extraction conditions. Were evaluated the water solubility (WS) and oil absorption capacity. Mucilage (gel and dried) was applied in ice cream, and submitted to overrun, melting, color and sensory analysis. Time and temperature were significant parameters, being the best conditions at 60ºC for 2 hours. Samples presented WS between 200 and 1400 g/kg, increasing proportionally to temperature. Ice cream with gel presented higher value and started the melting process faster than the mucilage one. There was a significant difference between samples in flavor, color and texture, and the purchase intention of most tasters indicated "maybe would buy", and both ice cream (with gel and with mucilage) presented hight acceptance index. Psyllium presented good technological properties, that are very desirable in food products. It was possible to find the best condition for psyllium mucilage extraction and an ice cream application obtaining a product with good acceptance (82%).

Effects of ultrasound extraction on the physicochemical and emulsifying properties of rice bran protein

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Li-Hui Sun ◽  
Feng Yu ◽  
Yu-Ying Wang ◽  
Shi-Wen Lv ◽  
Lei-Yu He
Keyword(s):  
Rice Bran ◽  
Protein Solubility ◽  
Surface Hydrophobicity ◽  
Absorption Capacity ◽  
Emulsifying Properties ◽  
Ultrasound Assisted Extraction ◽  
Suitable Alternative ◽  
Rice Bran Protein ◽  
Assisted Extraction ◽  
Ultrasound Assisted

Abstract In this study, rice bran protein was prepared by ultrasound-assisted extraction, and its physicochemical and emulsifying properties were also evaluated. Results demonstrated that a significant increase in protein yield was observed when ultrasound-assisted method was employed for extracting protein. Noticeably, obtained rice bran protein possessed excellent physicochemical properties, such as oil absorption capacity, protein solubility and foaming property. More hydrophobic groups were exposed in the process of ultrasound-assisted extraction, which led to the increase of surface hydrophobicity. More importantly, the ultrasound-assisted extraction could improve emulsifying properties of rice bran protein, and the emulsions prepared using protein samples exhibited the great stability. Besides, it was also found that emulsifying properties of protein samples presented a decrease trend with increasing ultrasound power and time. All in all, ultrasound-assisted extraction is a suitable alternative process for preparing rice bran protein.

scholarly journals Optimization of Ultrasound-Assisted Extraction of Flavonoids from Olive (Olea europaea) Leaves, and Evaluation of Their Antioxidant and Anticancer Activities

Molecules ◽  
2018 ◽  
Vol 23 (10) ◽  
pp. 2513 ◽  
Author(s):  
Bixia Wang ◽  
Jipeng Qu ◽  
Siyuan Luo ◽  
Shiling Feng ◽  
Tian Li ◽  
...  
Keyword(s):  
Olea Europaea ◽  
Maximum Yield ◽  
Flavonoid Compound ◽  
Anticancer Activities ◽  
Olive Leaves ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Significant Difference ◽  
Ultrasound Assisted ◽  
Olea Europaéa

Olea europaea leaves are the major byproduct of olive farming. In this study, ultrasound-assisted extraction of flavonoids from olive leaves was optimized using response surface methodology, and the flavonoid compounds and their antioxidant and anticancer activities were investigated by high performance liquid chromatography. The results showed that the optimized conditions for achieving the maximum yield of flavonoids (74.95 mg RE/g dm) were 50 °C temperature, 270 W power, 50 min time, and 41 mL/g liquid-solid ratio. There was a significant difference in the total flavonoid content between the aged and young leaves harvested in April and July, and six main components were quantified. Among them, luteolin-4’-O-glucoside was the most predominant flavonoid compound, followed by apigenin-7-O-glucoside and rutin. Olive leaves also contained small amounts of luteolin, apigenin, and quercetin. Additionally, excellent antioxidant activity was exhibited when tested with the DPPH assay; superoxide radical-scavenging ability and reducing power was also tested. The anticancer activity of the flavonoids was assessed using HeLa cervical cancer cells, and it was observed that increasing concentrations of olive leaf flavonoids resulted in decreased cancer cell viability. These results suggest that the flavonoids from olive leaves could be used as a potential source of natural antioxidants for the pharmaceutical and food industries.

scholarly journals Technology and Process Design for Phenols Recovery from Industrial Chicory (Chicorium intybus) Leftovers

Molecules ◽  
2019 ◽  
Vol 24 (15) ◽  
pp. 2681 ◽  
Author(s):  
Camilla Maria Cova ◽  
Luisa Boffa ◽  
Marco Pistocchi ◽  
Silver Giorgini ◽  
Rafael Luque ◽  
...  
Keyword(s):  
Extraction Process ◽  
Ethanol Solution ◽  
Ultrasound Assisted Extraction ◽  
Mineral Salts ◽  
Primary And Secondary Metabolites ◽  
Assisted Extraction ◽  
Honestly Significant Difference ◽  
Significant Difference ◽  
Tukey Honestly Significant Difference ◽  
Post Hoc

Vegetal leftovers from the agro–food industry represent a huge source of primary and secondary metabolites, vitamin, mineral salts and soluble as well as insoluble fibers. Economic reports on the growth in the polyphenol market have driven us to focus our investigation on chicory (Chicorium intybus L.), which is one of the most popular horticultural plants in the world and a rich source of phenolic compounds. Ultrasound-assisted extraction (UAE), microwave-assisted extraction (MAE) and their simultaneous combination, using either ethanol/water or water alone (also sub-critical), have been investigated with the aim of designing a green and efficient extraction process. Higher total-polyphenol yields as well as dramatic reductions in extraction times and solvent consumption have been obtained under these conditions. ANOVA test for analyses of variance followed by the Tukey honestly significant difference (HSD) post-hoc test of multiple comparisons was used in the statistical analysis. MAE experiments performed with sub-critical water, and MW/US experiments with an ethanol solution have shown polyphenol recovery values of up to ~3 g of gallic acid equivalents (GAE) per kg of fresh material in only 15 min, while conventional extraction required 240 min to obtain the same result.

scholarly journals Polyphenol Characterization in Red Beverages of Carapa procera (D.C.) Leaf Extracts

Beverages ◽  
2019 ◽  
Vol 5 (4) ◽  
pp. 68 ◽  
Author(s):  
Félix A. Adjé ◽  
Emmanuel N. Koffi ◽  
Kisselmina Y. Koné ◽  
Emmanuelle Meudec ◽  
Augustin A. Adima ◽  
...  
Keyword(s):  
Phenolic Acids ◽  
Cross Flow ◽  
Ultrasound Assisted Extraction ◽  
Leaf Extracts ◽  
Chromatographic Techniques ◽  
Assisted Extraction ◽  
Multistep Process ◽  
Quercetin Aglycone ◽  
Carapa Procera ◽  
First Time

The red aqueous beverages of Carapa procera (D.C.) leaf extracts were investigated for their polyphenol contents using HPLC-DAD, HPLC-ESI-MS, and semipreparative HPLC. Polyphenols were extracted, clarified, and concentrated using a multistep process including ultrasound-assisted extraction (UAE), cross-flow microfiltration (CFM), and reverse osmosis (RO). On the basis of analytical and semipreparative chromatographic techniques, 12 phenolic compounds were identified and quantified for the first time: 2 anthocyanins (cyanidin 3-O-glucoside and cyanidin 3-O-rutinoside), 5 phenolic acids (protocatechuic, the three caffeoylquinic isomers, and coumaroylquinic acid), and 5 flavonols (quercetin 3-O-rutinoside, quercetin 3-O-galactoside, quercetin 3-O-glucoside, quercetin aglycone, and kaempferol 3-O-rutinoside). From the concentrated extract, it was possible to recover for anthocyanins (28.4 ± 0.3 µmol L−1 cyanidin equivalents) the two glycosides of cyanidin, for flavonols (1587 ± 3 µmol L−1 quercetin equivalents) the two glycosides of quercetin and kaempferol, and for phenolic acids (3650 ± 10 µmol L−1 gallic acid equivalents) chlorogenic and protocatechuic acids.

scholarly journals Multivariate optimization of an ultrasound-assisted extraction procedure for Cu, Mn, Ni and Zn determination in ration to chickens

2013 ◽  
Vol 85 (3) ◽  
pp. 891-902 ◽  
Author(s):  
JOELIA M. BARROS ◽  
MARCOS A. BEZERRA ◽  
GISSELI S. VALASQUES ◽  
BARAQUIZIO B. DO NASCIMENTO JUNIOR ◽  
ANDERSON S. SOUZA ◽  
...  
Keyword(s):  
Optimization Techniques ◽  
Multivariate Optimization ◽  
Ultrasound Assisted Extraction ◽  
Flame Atomic Absorption ◽  
Assisted Extraction ◽  
Relative Standard ◽  
Significant Difference ◽  
Copper Manganese ◽  
Ultrasound Assisted ◽  
Zinc Determination

In this work, multivariate optimization techniques were used to develop a method based on the ultrasound-assisted extraction for copper, manganese, nickel and zinc determination from rations for chicken nutrition using flame atomic absorption spectrometry. The proportions of extracting components (2.0 mol.L–1 nitric, hydrochloric and acetic acid solutions) were optimized using centroid-simplex mixture design. The optimum proportions of this mixture taken as percentage of each component were respectively 20%, 37% and 43%. Variables of method (sample mass, sonication time and final acid concentration) were optimized using Doehlert design. The optimum values found for these variables were respectively 0.24 g, 18s and 3.6 mol.L–1. The developed method allows copper, manganese, nickel and zinc determination with quantification limits of 2.82; 4.52; 10.7; e 9.69 µg.g–1, and precision expressed as relative standard deviation (%RSD, 25 µg.g–1, N = 5) of 5.30; 2.13; 0.88; and 0.83%, respectively. This method was applied in the analytes determination from chicken rations collected from specialized commerce in Jequié city (Bahia State/Brazil). Application of paired t-test at the obtained results, in a confidence level of 95%, does not show significant difference between the proposed method and the microwave-assisted digestion.

Multi-residue determination of micropollutants in Nigerian fish from Lagos lagoon using ultrasound assisted extraction, solid phase extraction and ultra-high-performance liquid chromatography tandem mass spectrometry

2020 ◽  
Vol 12 (16) ◽  
pp. 2114-2122
Author(s):  
Idera Fabunmi ◽  
Natalie Sims ◽  
Kathryn Proctor ◽  
Aderonke Oyeyiola ◽  
Temilola Oluseyi ◽  
...  
Keyword(s):  
High Performance ◽  
Solid Phase ◽  
Ultrasound Assisted Extraction ◽  
Residue Determination ◽  
Chromatography Tandem Mass Spectrometry ◽  
Assisted Extraction ◽  
Liquid Chromatography Tandem Mass ◽  
Lagos Lagoon ◽  
First Time

This reports for the first time a simple and robust approach in determining pharmaceuticals in different fish species in Nigeria.

scholarly journals Impact of Extraction Process in Non-Compliant ‘Bravo de Esmolfe’ Apples towards the Development of Natural Antioxidant Extracts

2021 ◽  
Vol 11 (13) ◽  
pp. 5916
Author(s):  
Ana A. Vilas-Boas ◽  
Ana Oliveira ◽  
Tânia B. Ribeiro ◽  
Sónia Ribeiro ◽  
Catarina Nunes ◽  
...  
Keyword(s):  
Value Added ◽  
Market Value ◽  
Extraction Process ◽  
Natural Antioxidant ◽  
Ultrasound Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Traditional Cultivars ◽  
Ultrasound Assisted ◽  
First Time

The ‘Bravo de Esmolfe’ apple (BE) is rich in antioxidants and represents one of the most important traditional cultivars in Portugal. A large amount of non-compliant BE, with no market value, it is generated every year. Thus, an effort to find value-added solutions is of utmost importance. For the first time, green extraction (microwave-assisted-extraction (MAE) and ultrasound-assisted-extraction (UAE)) were compared against conventional extraction (with (CET) and without temperature (CE)) to select the most efficient process to produce a natural antioxidant extract from non-compliant BE. The results showed that MAE and CET are good methodologies for developing a BE antioxidant extract. However, MAE is more sustainable than CET, requiring less time to reach high temperatures. The MAE-extract showed great antioxidant activity (14.80 ± 0.70 mg TE/g DE by ORAC, 3.92 ± 0.25 mg AAE/g DE by ABTS, and 5.11 ± 0.13 mg TE/g DE by DPPH). This extract revealed high amount of chlorogenic acid (0.48 ± 0.07 mg/g DE), (-)-epicatechin (0.30 ± 0.02 mg/g DE) and phloridzin (0.13 ± 0.01 mg/g DE). This study shows that non-compliant BE is a useful source of antioxidants, being a sustainable way for the recovery of value-added compounds from the rejected fruit in line with sustainable and circular bioeconomy principles.

scholarly journals Effect of temperature and time treatment of Ultrasound-assisted extraction on the properties of bengkoang water-soluble polysaccharides

2021 ◽  
Vol 332 ◽  
pp. 08004
Author(s):  
Adrian Hilman ◽  
Ismed Suhaidi ◽  
Azhari ◽  
Kridsada Keawyok
Keyword(s):  
Absorption Capacity ◽  
Water Soluble ◽  
Effect Of Temperature ◽  
Morphological Observation ◽  
Ultrasound Assisted Extraction ◽  
Time Treatment ◽  
Assisted Extraction ◽  
Soluble Polysaccharide ◽  
Ultrasound Assisted ◽  
Zero Hunger

Zero Hunger as the SDG program aims to prevent global need with innovation to exploit and promote local food uses of all available underutilized food crops. A water-soluble polysaccharide is included in bengkoang (Pachyrhizus erosus) soluble fibres. Previous studies reported that ultrasound-assisted extraction impacts starch depending on several factors such as temperatures and times. The research aims to obtain bengkoang oligosaccharide compounds by ultrasound-assisted extraction with different treatment of temperatures and times. The results of the moisture degree were decreasing the moisture degree might be attributed to the increasing temperature and time treatment of ultrasound-assisted extraction. It increases the water absorption capacity of the modified starch by sonication and is also related to the size of the starch granules. The results of the FTIR graph test show that some of the granules have cracks and small depressions on the surface that are visible in the middle and corners after being treated with sonication. The results of the morphological observation show that after treatment of sonication in water appear minor cracks and scratches. Some water-soluble polysaccharide granules are transformed into gelatinization form that makes granule shape irregular and has small visible cracks in the central part.

scholarly journals New Insights into the Exploitation of Vitis vinifera L. cv. Aglianico Leaf Extracts for Nutraceutical Purposes

Antioxidants ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 708 ◽  
Author(s):  
Fabiana Labanca ◽  
Immacolata Faraone ◽  
Maria Rosaria Nolè ◽  
Ruth Hornedo-Ortega ◽  
Daniela Russo ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Vitis Vinifera ◽  
Inhibitory Activity ◽  
Vitis Vinifera L ◽  
Ultrasound Assisted Extraction ◽  
Leaf Extracts ◽  
Assisted Extraction ◽  
Long Time ◽  
Bioactive Potential ◽  
First Time

The leaves of Vitis vinifera L. have been used for a long time in traditional medicine for the treatment of many ailments. Grape polyphenols, indeed, have been demonstrated to be able to defend against oxidative stress, responsible for various disorders such as cancer, diabetes and neurodegenerative diseases. The effects of different extraction techniques, Soxhlet (SOX), Accelerated Solvent (ASE 40, ASE 50) and Ultrasound Assisted Extraction (UAE) were studied in this work to evaluate their impact on the chemical profile and bioactive potential of Vitis vinifera L. (cv. Aglianico) leaf extracts. The phytochemical profile was investigated by HPLC-DAD and 9 phenolic compounds were identified and quantified in the extract. Moreover, the antioxidant, anticholinesterase and antityrosinase activities were evaluated. In detail, the total polyphenol content and antioxidant activity (2,2-diphenyl-1-picrylhydrazyl, Oxygen Radical Absorbance Capacities and β-Carotene Bleaching assays) were evaluated and compared to assess the Relative Antioxidant Capacity Index (RACI). To test the inhibitory activity of extracts towards cholinesterases, acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibition assays were performed. SOX and ASE 50 have shown the highest value of RACI, 0.76 and 0.65, respectively. Regarding enzymatic inhibitory activity, ASE 50 (IC50 = 107.16 ± 8.12 μg/mL) and SOX (IC50 = 171.34 ± 12.12 μg/mL) extracts exhibited the highest AChE and BChE inhibitory activity, respectively, while UAE (IC50 = 293.2 ± 25.6 μg/mL, followed by SOX (IC50 = 302.5 ± 38.3 μg/mL) showed the highest tyrosinase inhibition value. Our results demonstrated for the first time that Aglianico leaves are important sources of phenols that could be used to prevent oxidative stress and be potentially helpful in diseases treatable with tyrosinase and cholinesterase inhibitors, like myasthenia gravis or Alzheimer’s.

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