Specific Energy: A New Approach to Ultrasound-assisted Extraction of Natural Colorants

Strieder, Monique Martins; Silva, Eric Keven; Meireles, M. Angela A.

doi:10.5923/j.fph.20190902.02

Cited by 23 publications

(9 citation statements)

References 56 publications

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“…First, 80 mg of each sample was weighed accurately into a 2 mL centrifuge tube, then 1.6 mL of 70% methanol solution was added precisely [33], and sealed with parafilm. Second, samples were extracted by ultrasonication for 60 min (40 kHz) at 25°C and centrifuged at 13,000 rpm/min for 15 min (4°C) [34]. Third, the supernatants were stored at 4°C, and filtered with a 0.22 μm microporous membrane filter before injection.…”

Section: Methodsmentioning

confidence: 99%

Study on changes in pigment composition during the blooming period of safflower based on plant metabolomics and semi‐quantitative analysis

Zhang

Tang

et al. 2021

J of Separation Science

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Red and yellow pigments are the major ingredients of safflower, often used to color food and cosmetics. Carthamin was the main component of red pigment and hydroxysafflor yellow A and anhydrosafflower yellow B were representative components of yellow pigment. Plant metabolomics and semi‐quantitative analysis were used to analyze the changes of pigment composition during the blooming period, especially these characteristic components. Carthamin, hydroxysafflor yellow A, anhydrosafflower yellow B, and other components were screened out as differential metabolites based on plant metabolomics. Then semi‐quantitative analysis was used to quantify these three representative components of pigments. Experimental results showed that the content of pigments has dynamic changes along with flowering, in the early blooming period, yellow pigment accumulated much and red pigment was low in content. In the middle period, the accumulation rate of the yellow pigment slowed down and content was stabilized. In the next step, the content of yellow pigments gradually decreased, and the content of red pigments gradually increased. Later, the level of yellow pigment decreased significantly, and the accumulation rate of red pigment increased significantly. Last, the appearance color of safflower was red, with yellow parts barely visible, and accumulation of red pigment was the highest and of the yellow pigment was the lowest in content.

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Section: Methodsmentioning

confidence: 99%

Study on changes in pigment composition during the blooming period of safflower based on plant metabolomics and semi‐quantitative analysis

Zhang

Tang

et al. 2021

J of Separation Science

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“…When it comes to the synthesis procedures, ultrasoundassisted polymerization was found to be rapid compared to magnetic stirring. [23] In most cases, due to the rapid rate of [22] Copyright 2019, Scientific & Academic Publishing. polymerization provided, it takes about 10 min to polymerize the monomer after its addition to the reaction mixture.…”

Section: Ultrasound Bath and Ultrasound Probementioning

confidence: 99%

mentioning

confidence: 99%

Recent Progress in Intensifying Synthesis of Acrylic Microspheres for Catalysis

Gaddale

Kale

Srinivasan

et al. 2023

Adv Materials Inter

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Over the past decades, there has been an escalating rise in the need for chemicals and catalytic materials to keep up with global demands. Addressing those issues by conventional methods often becomes inefficient, with myriad operational risks. Process intensification methods through procedural and equipment‐based modifications have been considered greener, have higher heat and mass transfer rates, and operate with lower costs. In this review, research using ultrasonic reactors and microreactors, along with developments through an integrated external energy source, for synthesizing acrylic microspheres is covered extensively. Acrylic microspheres have garnered much interest for their biocompatibility, affinity toward functionalization, and wide range of applications. Core–shell, composite, functional‐group modified, and porous acrylic microspheres are used for enzyme immobilization and as catalyst carriers. The use of acrylic support has provided huge improvements in catalytic activity, reusability, recyclability, and overall stability. Finally, various other process intensification methods and alternate support materials are covered to help enhance future developments in the field of catalysis.

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“…Firstly, 1 g of each sample was weighed accurately into a 50-ml conical flask with a stopper, and then 25 ml of 80% methanol solution added precisely and sealed with parafilm (Perez de Souza et al, 2019). Secondly, all the samples were extracted by ultrasonication for 40 min (40 kHz) at 30°C and then centrifuged at 13,000 rpm/min for 15 min (4°C; Martins Strieder et al, 2019). Thirdly, the supernatants were stored at 4°C and filtered with a 0.22-μm microporous membrane filter before injection.…”

Section: Samples Preparationmentioning

confidence: 99%

Research on Biomarkers of Different Growth Periods and Different Drying Processes of Citrus wilsonii Tanaka Based on Plant Metabolomics

Yan

Zhang

et al. 2021

Front. Plant Sci.

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Fruit of Citrus wilsonii Tanaka called as “Xiang yuan” in Chinese, which means fragrant and round. It was widely used in the pharmaceutical and food industries. This fruit has well-known health benefits such as antioxidant, radical scavenging, and anti-inflammatory. Naringin, deacetylnomilin, citric acid, limonin, and nomilin were the characteristic components of Citrus wilsonii Tanaka. Although the fruit of Citrus wilsonii Tanaka possessed many applications, there was a lack of research on the growth period and drying process. In this study, plant metabolomics was used to analyze the biomarkers of the growth period, and appearance indicators and metabolites abundance were combined for the analysis of change regularities of the growth period. The representative differential metabolites of naringin, citric acid, and limonin were screened out, and the abundance of these components was relatively highest in the middle of the growth period. Therefore, the fruit of Citrus wilsonii Tanaka should be harvested before it turned yellow completely, which could effectively ensure the content of potential active ingredients. In the comparison of different drying methods, citric acid and naringin were considered to be representative differential components, but limonoids were relatively stable and not easily affected by drying methods. Naringin was an index component that could not only be reflected the maturity but also related to different drying methods. Considering its physical and chemical properties and its position, naringin had the potential to be a biomarker of Citrus wilsonii Tanaka.

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Specific Energy: A New Approach to Ultrasound-assisted Extraction of Natural Colorants

Cited by 23 publications

References 56 publications

Study on changes in pigment composition during the blooming period of safflower based on plant metabolomics and semi‐quantitative analysis

Study on changes in pigment composition during the blooming period of safflower based on plant metabolomics and semi‐quantitative analysis

Recent Progress in Intensifying Synthesis of Acrylic Microspheres for Catalysis

Research on Biomarkers of Different Growth Periods and Different Drying Processes of Citrus wilsonii Tanaka Based on Plant Metabolomics

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