Supercritical Carbon Dioxide and Microwave-Assisted Extraction of Functional Lipophilic Compounds from Arthrospira platensis
نویسندگان
چکیده
Arthrospira platensis biomass was used in order to obtain functional lipophilic compounds through green extraction technologies such as supercritical carbon dioxide fluid extraction (SFE) and microwave-assisted extraction (MAE). The temperature (T) factor was evaluated for MAE, while for SFE, pressure (P), temperature (T), and co-solvent (ethanol) (CS) were evaluated. The maximum extraction yield of the obtained oleoresin was (4.07% ± 0.14%) and (4.27% ± 0.10%) for SFE and MAE, respectively. Extracts were characterized by gas chromatography mass spectrometry (GC-MS) and gas chromatography flame ionization detector (GC-FID). The maximum contents of functional lipophilic compounds in the SFE and MAE extracts were: for carotenoids 283 ± 0.10 μg/g and 629 ± 0.13 μg/g, respectively; for tocopherols 5.01 ± 0.05 μg/g and 2.46 ± 0.09 μg/g, respectively; and for fatty acids 34.76 ± 0.08 mg/g and 15.88 ± 0.06 mg/g, respectively. In conclusion, the SFE process at P 450 bar, T 60 °C and CS 53.33% of CO₂ produced the highest yield of tocopherols, carotenoids and fatty acids. The MAE process at 400 W and 50 °C gives the best extracts in terms of tocopherols and carotenoids. For yield and fatty acids, the MAE process at 400 W and 70 °C produced the highest values. Both SFE and MAE showed to be suitable green extraction technologies for obtaining functional lipophilic compounds from Arthrospira platensis.
منابع مشابه
Effect of Supercritical Carbon Dioxide Extraction Parameters on the Biological Activities and Metabolites Present in Extracts from Arthrospira platensis
Arthrospira platensis was used to obtain functional extracts through supercritical carbon dioxide extraction (SFE-CO₂). Pressure (P), temperature (T), co-solvent (CX), static extraction (SX), dispersant (Di) and dynamic extraction (DX) were evaluated as process parameters through a Plackett-Burman design. The maximum extract yield obtained was 7.48 ± 0.15% w/w. The maximum contents of bioactive...
متن کاملSupercritical Carbon Dioxide Extraction of Bioactive Compounds from Feijoa (Feijoa sellowiana) Leaves
Background and Objectives: Supercritical fluid extraction (SFE) technique has been studied for extraction of bioactive compounds from Feijoa sellowiana leaves. Results were compared with those obtained from conventional ethanolic extraction (CE). Materials and Methods: Results: The best supercritical carbon dioxide (SC-CO2) extraction conditions was determined as 250 bar of pressure, 50 °...
متن کاملExpanded ethanol with CO 2 and pressurized ethyl 2 lactate : ethanol to obtain fractions enriched in γ - Linolenic Acid 3 from Arthrospira platensis (
28 In the present work, two extraction techniques and two green solvents have 29 been tested to obtain γ-linolenic acid (GLnA)-enriched fractions from Arthrospira 30 platensis (Spirulina). Expanded ethanol with supercritical CO2 (Gas Expanded 31 Liquid Extraction, GXL) and Pressurized liquid extraction (PLE) using mixtures 32 of ethanol:ethyl lactate were tested and optimized chemometrically. R...
متن کاملCoupling Microwave-Assisted Drying and Supercritical Carbon Dioxide Extraction for Coconut Oil Processing
Supercritical carbon dioxide extraction was applied to the processing of virgin coconut oil (VCNO), which has been known to possess several functions such as antimicrobial properties as proven by many medical doctors and clinical researchers. Prior to extraction, the sample was dried using microwave-assisted low-temperature air drying method. Using these techniques, an oil recovery of 95% was o...
متن کامل