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J Agric Food Chem

Title:		Evaluation of the volatile composition and sensory properties of five species of microalgae
Author(s):		Van Durme J; Goiris K; De Winne A; De Cooman L; Muylaert K;
Address:		"Research Group Molecular Odor Chemistry, Department of Microbial and Molecular Systems (M2S), Research Cluster Food and Biotechnology, KU Leuven Campus Ghent , Technology Campus, Gebroeders De Smetstraat 1, B-9000 Ghent, Belgium"
Journal Title:		J Agric Food Chem
Year:		2013
Volume:		20131105
Issue:		46
Page Number:		10881 - 10890
DOI:		10.1021/jf403112k
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"Due to their high content of polyunsaturated fatty acids, antioxidants, and proteins, microalgae hold a lot of potential for nutritional applications. When microalgae are integrated into foodstuffs, the aroma is an important aspect to consider. In this study the aroma properties of microalgae were studied by correlating data on the volatile composition with sensory evaluations. Four species of marine microalgae ( Botryococcus braunii, , Rhodomonas , Tetraselmis species, and Nannochloropsis oculata ) and one fresh water microalga ( Chlorella vulgaris ) were investigated. Multivariate data processing revealed that microalgal samples having a seafood-like odor character contain high levels of sulfuric compounds (dimethyl disulfide, dimethyl trisulfide, and methional), diketones, alpha-ionone, and beta-ionone. Fresh green, fruity flavors were linked with typical aldehydes such as 2,4-alkadienals and 2,4,6-alkatrienals. The presence of these compounds in fresh microalga pastes is explained by aroma formation mechanisms such as enzymatic lipid oxidation, enzymatic and chemical degradation of dimethylsulfoniopropionate (generating dimethyl sulfide), phenylalanine (generating benzaldehyde), and carotenoids (generating ionones)"
Keywords:		Adult Chlorophyta/*chemistry/classification Female Humans Male Microalgae/*chemistry/classification *Taste Volatile Organic Compounds/*analysis Young Adult;
Notes:		"MedlineVan Durme, Jim Goiris, Koen De Winne, Ann De Cooman, Luc Muylaert, Koenraad eng 2013/10/22 J Agric Food Chem. 2013 Nov 20; 61(46):10881-90. doi: 10.1021/jf403112k. Epub 2013 Nov 5"