Characterization of volatile aroma compounds after in-vial cooking of foxtail millet porridge with gas chromatography-mass spectrometry

Foxtail millet has become popular over recent years for its nutritional value and ecological functions. The aroma of foxtail millet is not well characterized, which is critical for its eating quality and understanding the biochemistry and genetics of aroma is important for molecular breeding of mill...

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Main Authors: Zhang, Yiru, Yang, Ni, Fray, Rupert G., Fisk, Ian, Liu, Chujiao, Li, Hongying, Han, Yuanhuai
Format: Article
Published: Elsevier 2018
Subjects:
Online Access:https://eprints.nottingham.ac.uk/52009/
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author Zhang, Yiru
Yang, Ni
Fray, Rupert G.
Fisk, Ian
Liu, Chujiao
Li, Hongying
Han, Yuanhuai
author_facet Zhang, Yiru
Yang, Ni
Fray, Rupert G.
Fisk, Ian
Liu, Chujiao
Li, Hongying
Han, Yuanhuai
author_sort Zhang, Yiru
building Nottingham Research Data Repository
collection Online Access
description Foxtail millet has become popular over recent years for its nutritional value and ecological functions. The aroma of foxtail millet is not well characterized, which is critical for its eating quality and understanding the biochemistry and genetics of aroma is important for molecular breeding of millets rich in aroma. In this study, the volatile aroma compounds of the elite millet variety Jingu 21 were investigated at different cooking times, pH, processing methods, and compared with 3 other varieties. An in-vial cooking method was developed which combined solid phase micro-extraction and gas chromatography-mass spectrometry for the detection and identification of volatile compounds. The main findings were: a) Twelve aroma compounds were identified during cooking, which were hexanal, heptanal, octanal, (E)-2-heptenal, nonanal, trans-2-octenal, trans-2-nonenal, 2,4-nonadienal, (E,E)-2,4-decadienal, 1-octen-3-ol, 2-pentylfuran and 6-methyl-5- hepten-2-one. b) Longer cooking times produced higher concentrations of aroma compounds. c) Variations in cooking pH (from 6 to 8) had no obvious impact on the aroma of the millet porridge. d) More volatile compounds were released from millet flour compared to millet grain. e) There were significant differences among varieties and Jingu 21 millet showed the highest abundance of most aroma compounds, explaining partly why it is strongly favored by consumers for decades.
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spelling nottingham-520092020-05-04T19:36:06Z https://eprints.nottingham.ac.uk/52009/ Characterization of volatile aroma compounds after in-vial cooking of foxtail millet porridge with gas chromatography-mass spectrometry Zhang, Yiru Yang, Ni Fray, Rupert G. Fisk, Ian Liu, Chujiao Li, Hongying Han, Yuanhuai Foxtail millet has become popular over recent years for its nutritional value and ecological functions. The aroma of foxtail millet is not well characterized, which is critical for its eating quality and understanding the biochemistry and genetics of aroma is important for molecular breeding of millets rich in aroma. In this study, the volatile aroma compounds of the elite millet variety Jingu 21 were investigated at different cooking times, pH, processing methods, and compared with 3 other varieties. An in-vial cooking method was developed which combined solid phase micro-extraction and gas chromatography-mass spectrometry for the detection and identification of volatile compounds. The main findings were: a) Twelve aroma compounds were identified during cooking, which were hexanal, heptanal, octanal, (E)-2-heptenal, nonanal, trans-2-octenal, trans-2-nonenal, 2,4-nonadienal, (E,E)-2,4-decadienal, 1-octen-3-ol, 2-pentylfuran and 6-methyl-5- hepten-2-one. b) Longer cooking times produced higher concentrations of aroma compounds. c) Variations in cooking pH (from 6 to 8) had no obvious impact on the aroma of the millet porridge. d) More volatile compounds were released from millet flour compared to millet grain. e) There were significant differences among varieties and Jingu 21 millet showed the highest abundance of most aroma compounds, explaining partly why it is strongly favored by consumers for decades. Elsevier 2018-05-09 Article PeerReviewed Zhang, Yiru, Yang, Ni, Fray, Rupert G., Fisk, Ian, Liu, Chujiao, Li, Hongying and Han, Yuanhuai (2018) Characterization of volatile aroma compounds after in-vial cooking of foxtail millet porridge with gas chromatography-mass spectrometry. Journal of Cereal Science, 82 . pp. 8-15. ISSN 0733-5210 Foxtail millet; Volatile aroma compounds; In-vial cooking; Gas chromatography-mass spectrometry https://www.sciencedirect.com/science/article/pii/S0733521017308871?via%3Dihub doi:10.1016/j.jcs.2018.05.003 doi:10.1016/j.jcs.2018.05.003
spellingShingle Foxtail millet; Volatile aroma compounds; In-vial cooking; Gas chromatography-mass spectrometry
Zhang, Yiru
Yang, Ni
Fray, Rupert G.
Fisk, Ian
Liu, Chujiao
Li, Hongying
Han, Yuanhuai
Characterization of volatile aroma compounds after in-vial cooking of foxtail millet porridge with gas chromatography-mass spectrometry
title Characterization of volatile aroma compounds after in-vial cooking of foxtail millet porridge with gas chromatography-mass spectrometry
title_full Characterization of volatile aroma compounds after in-vial cooking of foxtail millet porridge with gas chromatography-mass spectrometry
title_fullStr Characterization of volatile aroma compounds after in-vial cooking of foxtail millet porridge with gas chromatography-mass spectrometry
title_full_unstemmed Characterization of volatile aroma compounds after in-vial cooking of foxtail millet porridge with gas chromatography-mass spectrometry
title_short Characterization of volatile aroma compounds after in-vial cooking of foxtail millet porridge with gas chromatography-mass spectrometry
title_sort characterization of volatile aroma compounds after in-vial cooking of foxtail millet porridge with gas chromatography-mass spectrometry
topic Foxtail millet; Volatile aroma compounds; In-vial cooking; Gas chromatography-mass spectrometry
url https://eprints.nottingham.ac.uk/52009/
https://eprints.nottingham.ac.uk/52009/
https://eprints.nottingham.ac.uk/52009/