Supercritical carbon dioxide extraction of antioxidant rich fraction from Phormidium valderianum: Optimization of experimental process parameters

被引：28

作者：

Chatterjee, Dipan ^{[1
]}

Bhattacharjee, Paramita ^{[1
]}

机构：

[1] Jadavpur Univ, Dept Food Technol & Biochem Engn, Kolkata 700032, India

来源：

ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS | 2014年 / 3卷

关键词：

Phormidium valderianum; Supercritical carbon dioxide extraction; Antioxidant-rich fraction; Minimum Anatoxin-a content; FATTY-ACID-COMPOSITION; FLUID EXTRACTION; C-PHYCOCYANIN; ANATOXIN-A; SPIRULINA; OIL;

D O I：

10.1016/j.algal.2013.11.014

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Extraction of antioxidant-rich fractions from lyophilized algal biomass of Phormidium valderianum was carried out by green technology of supercritical carbon dioxide (SC-CO2) extraction. Optimization of extraction parameters (temperature and pressure) was carried out to obtain an extract that has the best combination of phytochemical properties (phenolic content, carotenoid content, reducing power and antioxidant activity) with minimum toxin content (Anatoxin-a). The algal extract obtained by SC-CO2 from 10 g biomass at 50 degrees C, 500 bar after 1.5 h extracting time at a flow rate of 2 l min(-1) of gaseous CO2 had maximum phytochemical properties with similar to 93% reduction of Anatoxin-a content. This investigation provides an alternative method for obtaining natural antioxidants from algae for food and pharmaceutical applications. (C) 2013 Elsevier B. V. All rights reserved.

引用

页码：49 / 54

页数：6

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