Aroma characterization of five microalgae species using solid-phase microextraction and gas chromatography-mass spectrometry/olfactometry
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Tarih
2018
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Sci Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, aroma compounds produced by three marine microalgae species (Crypthecodinium cohnii, Schizochytrium limacinum and Tetraselmis chuii) and two fresh water microalgae (Chlorella vulgaris and Chlorella protothecoides) important for nutritional applications were identified by means of solid-phase microextraction followed by gas chromatography-mass spectrometry (GC-MS), GC-olfactometry (GCO) and a sensory panel. Principal components analysis (PCA) was applied to the instrumental and sensory analysis data to visualize differences between the samples in terms of descriptive attributes and volatile compounds. Accordingly, C. cohnii was characterised by a high level of sulfur compounds (dimethyl sulfide, ethanethiol), and ester and alcohol compounds associated with distinct 'sulfur-cabbage', 'fruity', 'rosy', and 'boiled potato' aroma notes. While S. limacinum was characterised more by aldehydes and alcohol compounds associated with 'mushroom', 'cucumber', and 'fatty-grassy' aroma characteristics, the other three samples showed relatively higher levels of ketone and terpene compounds with 'woody' and 'cereal-like' sensory characteristics.
Açıklama
Anahtar Kelimeler
Microalgae, Aroma active compounds, Sensory evaluation, Gas chromatography-olfactometry, Gas chromatography-mass spectrometry
Kaynak
Food Chemistry
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
240
