نتایج جستجو برای: ultrasound assisted extraction

تعداد نتایج: 394391  

Journal: :Energies 2023

The aim of the study was to analyze influence dimensions extraction cells on energy aspects and efficiency flavonoids from rowanberry fruits (S. aucuparia L.). total flavonoid content determined using spectrophotometric method. Response surface methodology (RSM) used optimize variables under investigation. in obtained extracts ranged 0.17 0.66 mg QE/g dry matter for with a diameter 3.5 cm, 0.19...

2017
Stephen Bleakley Maria Hayes

Population growth combined with increasingly limited resources of arable land and fresh water has resulted in a need for alternative protein sources. Macroalgae (seaweed) and microalgae are examples of under-exploited "crops". Algae do not compete with traditional food crops for space and resources. This review details the characteristics of commonly consumed algae, as well as their potential f...

2015
Jana Šic Žlabur Sandra Voća Nadica Dobričević Mladen Brnčić Filip Dujmić Suzana Rimac Brnčić

*Corresponding author e-mail: [email protected] A b s t r a c t. The aim of the present study was to reveal an effective extraction procedure for maximization of the yield of steviol glycosides and total phenolic compounds as well as antioxidant activity in stevia extracts. Ultrasound assisted extraction was compared with conventional solvent extraction. The examined solvents were water (100oC/24 ...

2013
Lourdes Casas Cardoso Casimiro Mantell Serrano Miguel Rodríguez Rodríguez Enrique J. Martínez de la Ossa Luis M. Lubián

The work described here is based on a comparative study of carotenoids and fatty acids extracted from Synechococcus sp. with 1) pure supercritical CO2; 2) CO2 with 5% (v/v) ethanol as cosolvent; and 3) ultrasound-assisted extraction using N, N-dimethylformamide (DMF). The effects of extraction conditions on supercritical CO2 extraction with and within cosolvent were analyzed at different temper...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2012
mojtaba haydari-majd sayed ali mortazavi javad asili shadi bolorian mohammad armin

background & aim: restrictions on the use of synthetic antioxidant such as butylated hydroxyanisole (bha) and butylated hydroxytoluene (bht) are being imposed because of their carcinogecity . experimental: in this investigation, optimization of phenolic extraction process from methanolic (80%) extract (v/v) of  flomideschema parviflorum through response surface methodology by fulin cio-calt...

Journal: :journal of agricultural science and technology 2010
a. rajaei m. barzegar m. a. sahari

tea and sesame seed oils extracted by different methods (including supercritical fluid extraction (sfe), at a pressure of 350 atm, a temperature of 60oc, a static extraction time of 20 minutes, a dynamic extraction time of 30 minutes and 150 g kg-1 of ethanol as a modifier). solvent (se) and ultrasound-assisted solvent extraction (ue)), as natural anti-oxidants, were evaluated during 15 days st...

2016
Dong-Ping Xu Jie Zheng Yue Zhou Ya Li Sha Li Hua-Bin Li

The Thelephora ganbajun mushroom has been found to be a potential rich source of natural antioxidants. In this study, an ultrasound-assisted extraction (UAE) technique together with GRAS (generally recognized as safe) solvents (ethanol and water) was used to maximize the extraction of antioxidants from Thelephora ganbajun. Five extraction parameters (ethanol concentration, solvent to solid rati...

Journal: :Acta scientiarum polonorum. Technologia alimentaria 2014
Wei Liu Chun-Li Zhou Jing Zhao Dong Chen Quan-Hong Li

BACKGROUND 6-Gingerol is one of the most pharmacologically active and abundant components in ginger, which has a wide array of biochemical and pharmacologic activities. In recent years, the application of microwave-assisted extraction (MAE) for obtaining bioactive compounds from plant materials has shown tremendous research interest and potential. In this study, an efficient microwave-assisted ...

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