Characterization of potent odorants in male giant water bug (Lethocerus indicus Lep. and Serv.), an important edible insect of Southeast Asia
In: Food chemistry, Jg. 168 (2015), S. 639-647
academicJournal
- print, 3/4 p
Zugriff:
Potent odorants in frozen fresh (FFB) and salted boiled (SBB) male giant water bugs (Lethocerus indicus), or 'Maengdana' in Thai, were characterized by application of direct solvent extraction/solvent-assisted flavour evaporation (SAFE), gas chromatography-mass spectrometry (GC-MS), gas chromatography-olfactometry (GC-O), aroma extract dilution analysis (AEDA) and stable isotope dilution assays (SIDA). Twenty and 27 potent odorants were detected in FFB and SBB, respectively. Most odorants were lipid-derived compounds, including the two most abundant volatile components (E)-2-hexenyl acetate and (E)-2-hexenyl butanoate, which contributed banana-like odours. 2-Acetyl-1-pyrroline and 2-acetyl-2-thiazoline, responsible for popcorn-like odours, were detected in SBB only. An aroma reconstitution model of SBB was constructed in an oil-in-water emulsion matrix using 12 selected potent odorants based on the results of AEDA, accurate compound quantification and the calculated odour-activity values (OAV). Omission studies were carried out to verify the significance of esters, particularly (E)-2-hexenyl acetate was determined to be an important character-impact odorant in male giant water bug aroma.
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Characterization of potent odorants in male giant water bug (Lethocerus indicus Lep. and Serv.), an important edible insect of Southeast Asia
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Autor/in / Beteiligte Person: | KIATBENJAKUL, Patthamawadi ; INTARAPICHET, Kanok-Orn ; CADWALLADER, Keith R |
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Zeitschrift: | Food chemistry, Jg. 168 (2015), S. 639-647 |
Veröffentlichung: | Kidlington: Elsevier, 2015 |
Medientyp: | academicJournal |
Umfang: | print, 3/4 p |
ISSN: | 0308-8146 (print) |
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