Nutrient value of Salicornia ramosissima—A green extraction process for mineral analysis

2021 ◽  
Vol 104 ◽  
pp. 104135
Author(s):  
Maria Lopes ◽  
Mário João Roque ◽  
Carlos Cavaleiro ◽  
Fernando Ramos
Author(s):  
Mustafa Kamal Abdul Aziz ◽  
Takayuki Okayama ◽  
Ryota Kose ◽  
Noor Azian Morad ◽  
Noor Baini Nabila Muhamad ◽  
...  

Marine Drugs ◽  
2020 ◽  
Vol 18 (7) ◽  
pp. 336
Author(s):  
Noelia Flórez-Fernández ◽  
Milena Álvarez-Viñas ◽  
Filipa Guerreiro ◽  
María Dolores Torres ◽  
Ana Grenha ◽  
...  

A green extraction process using only water was proposed for the simultaneous extraction of alginate and bioactive compounds from Laminaria ochroleuca. Operation was carried out during non-isothermal heating up to maximal temperatures over the range of 70 °C to 100 °C. Once separated, the alginate and the crude extract were characterised and the biological activities and cytotoxicity of the extracts was studied, the latter in intestinal epithelial cells. Those alginates obtained at 90 °C exhibited the highest extraction yields and viscoelastic features of the corresponding hydrogels. The obtained results show that the extracts obtained by non-isothermal extraction were suitable to formulate nanoparticles, which showed the smallest size (≈250–350 nm) when the higher content of fucoidan extract was present. Given the evidenced properties, the extracts may find an application in the formulation of nanoparticulate carriers for drug delivery.


2018 ◽  
Vol 67 ◽  
pp. 03002
Author(s):  
Angelina ◽  
Mauhibah Yumna ◽  
Abdullah ◽  
Rita Arbianti ◽  
Tania Surya Utami ◽  
...  

Green extraction process is a method which is used to obtain various plant extracts with minimum impact on the environment. Green extraction will reduce energy consumption, allow use of alternative solvents and renewable natural products, and ensure a safe and high quality extract. Ultrasound-assisted enzymatic extraction (UAEE) is one of green extraction method. UAEE is a mild, efficient and environmental friendly extraction method and it has been adopted for extracting various kinds of compounds. The use of enzyme will catalyze hydrolysis of the cytoderm and glycoproteins, therefore enhancing the release of bioactive substances by disrupting plant cells. The optimum extraction conditions with a maximum yield extract of 48.63% are as follows: the concentration of ethanol is 50% and the amount of added enzyme is 70 mg/g. Crude extract from keji beling leaves is tested using Gas Chromatography and Mass Spectrometry (GC-MS) to identify components that have anti-hypercholesterolemic activity, which are hexadecanoic acid, octadecanoic acid and demethyl squalene.


Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
A Mandeau ◽  
V Teysseyre ◽  
E Pagan ◽  
C Talon ◽  
V Douay ◽  
...  

2020 ◽  
Vol 7 (10) ◽  
pp. 201116
Author(s):  
Nina Dewi Oktaviyanti ◽  
Kartini Kartini ◽  
Mochammad Arbi Hadiyat ◽  
Ellen Rachmawati ◽  
Andre Chandra Wijaya ◽  
...  

In this study, an environmentally friendly extraction method for flavonoid compound from Ixora javanica , as a new raw material candidate for herbal medicine and cosmetics, was developed. The objectives of the present work were to provide recommendations for the optimal extraction conditions and to investigate the effects of any extraction parameters on flavonoid yields from the I. javanica flower. The extraction process was performed using deep eutectic solvent (DES) (choline chloride and propylene glycol at molar ratio of 1 : 1) and the ultrasound-assisted extraction method. Both single-factor and response surface analyses using three-level and three-factor Box Behnken designs were conducted to obtain the optimum flavonoid concentrations. The results showed that the optimum extraction conditions for total flavonoids featured an extraction time of 40 min, 25% water content in DES and a solid-to-liquid ratio of 1 : 25 g ml −1 . An extract obtained under optimum extraction conditions showed higher total flavonoid yields than an ethanolic extract which was used for comparison. Scanning electron microscope images demonstrated that both of the solvents also showed different effects on the outer surface of the I. javanica flower during the extraction process. In summary, our work succeeded in determining the optimum conditions for total flavonoids in the I. javanica flower using a green extraction method.


Recycling ◽  
2018 ◽  
Vol 3 (2) ◽  
pp. 15 ◽  
Author(s):  
Ioannis Mourtzinos ◽  
Nikolaos Menexis ◽  
Dimitrios Iakovidis ◽  
Dimitris Makris ◽  
Athanasia Goula

2021 ◽  
Author(s):  
Anxo Carreira-Casais ◽  
Catarina Lourenço-Lopes ◽  
Paz Otero ◽  
María Carpena ◽  
Antia Gonzalez Pereira ◽  
...  

During the last decades, consumers have increased the demand for healthier natural foods with lower presence of chemical additives. One reason of this choice is the controversy about chemical additives possible adverse effects. To fulfill market needs, different techniques have been developed to extract compounds from various raw materials to produce natural additives with different properties (preservatives, emulsifiers, or colorants) and bioactivities. In addition, the growing concern about the effects of climate change has led the development of more sustainable techniques to carry out the extraction. The use of new alternative nonconventional, emerging, or green extraction methodologies has gained considerable attention during the last decade. These novel techniques have been applied to minimize any negative changes in the nutritional, physicochemical or sensory properties of the natural source, while at the same time reducing the environmental impact of the process and gaining competitiveness of the world market. For this purpose, new green extraction methods have been proposed and optimized for the reduction of the consumption of raw materials, solvents, and energy. In this chapter, a revision of different types of green extraction techniques is compiled together with the main factor that can affect extraction-process feasibility and the main challenges and future trends for their development.


2018 ◽  
Vol 54 (7) ◽  
pp. 1174-1181 ◽  
Author(s):  
Senka Vidović ◽  
Nataša Nastić ◽  
Aleksandra Gavarić ◽  
Marina Cindrić ◽  
Jelena Vladić

Marine Drugs ◽  
2021 ◽  
Vol 19 (4) ◽  
pp. 216
Author(s):  
Concetta Maria Messina ◽  
Simona Manuguerra ◽  
Rosaria Arena ◽  
Giuseppe Renda ◽  
Giovanna Ficano ◽  
...  

Non-edible parts of crustaceans could be a rich source of valuable bioactive compounds such as the carotenoid astaxanthin and peptides, which have well-recognized beneficial effects. These compounds are widely used in nutraceuticals and pharmaceuticals, and their market is rapidly growing, suggesting the need to find alternative sources. The aim of this work was to set up a pilot-scale protocol for the reutilization of by-products of processed shrimp, in order to address the utilization of this valuable biomass for nutraceutical and pharmaceuticals application, through the extraction of astaxanthin-enriched oil and antioxidant-rich protein hydrolysates. Astaxanthin (AST) was obtained using “green extraction methods,” such as using fish oil and different fatty acid ethyl esters as solvents and through supercritical fluid extraction (SFE), whereas bioactive peptides were obtained by protease hydrolysis. Both astaxanthin and bioactive peptides exhibited bioactive properties in vitro in cellular model systems, such as antioxidant and angiotensin I converting enzyme (ACE) inhibitory activities (IA). The results show higher astaxanthin yields in ethyl esters fatty acids (TFA) extraction and significant enrichment by short-path distillation (SPD) up to 114.80 ± 1.23 µg/mL. Peptide fractions of <3 kDa and 3–5 kDa exhibited greater antioxidant activity while the fraction 5–10 kDa exhibited a better ACE-IA. Lower-molecular-weight bioactive peptides and astaxanthin extracted using supercritical fluids showed protective effects against oxidative damage in 142BR and in 3T3 cell lines. These results suggest that “green” extraction methods allow us to obtain high-quality bioactive compounds from large volumes of shrimp waste for nutraceutical and pharmaceutical applications.


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