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Identification of Sulfoglycolipids Bioactivities and Characteristic Fatty acids of Marine Macroalgae.
MedLine Citation:
PMID:  22827609     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The fatty acid compositions of 21 species of marine macroalgae, including 5 species of Chlorophyta (green algae), 13 of Rhodophyta (red algae) and 3 of Heterokontophyta (brown algae) were collected from the Northeastern Taiwan to survey their functional lipids. The lipid contents of green algae ranged 15.36~20.15 mg / g dry basis (db) were characterized by high content of C18:2 and C18:3; red algae (18.57 ~28.34 mg / g db) were high in C20:4 and C20:5; while brown algae (13.11~19.56 mg / g db) were high in C18:4, C20:4, and C:20:5. All algal lipids contained fatty acids of odd-number carbon, C17:0, and C17:1. Red algae had relatively higher levels of polyunsaturated fatty acids (PUFAs)and richer in ecicosapentaenoic acid (EPA) than green and brown algae. Red alga, Porphyra crispata was extracted with ethanol and separated on hydrophobic column (Diaion HP-20 column) to obtain sulfoglycolipids (sulfoquinovosyldiacylglycerols, SQDGs). The main fatty acids in SQDGs were palmitic acid (C16:0, 33.3%), EPA (C20:5, 30.0 %), arachidonic acid (C20:4, 12.7%), oleic acid (C18:1, 7.52%) and stearic acid (C18:0, 6.83 %). The n-3/n-6 ratio was 1.9 while the authentic standard, spinach SQDG did not contain n-3 fatty acids. Sulfoglycolipids inhibited the growth of human hepatocellular carcinoma cell line (Hep G2). The IC50 was 126 μg /mL being lower than the spinach SQDG (255 μg / mL).
Authors:
Cheng-Jung Tsai; Bonnie Sun Pan
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-24
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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