Abstract

The volatile compounds from brown millet (BM), milled millet (MM) and millet bran (MB) were extracted using simultaneous distillation/extraction with a Likens-Nickerson apparatus. The extracts were analysed using gas chromatography coupled with mass spectrometry (GC-MS). A total of 65 volatile compounds were identified in all of the samples. Among these compounds, 51, 51 and 49 belonged to BM, MM and MB, respectively. Aldehydes and benzene derivatives were the most numerous among all of the compounds. Three compounds (hexanal, hexadecanoic acid and 2-methylnaphthalene) were dominant in the BM and MM materials. Eight compounds (hexanal, nonanal, (E)-2-nonenal, naphthalene, 2-methylnaphthalene, 1-methylnaphthalene, hexadecanoic acid and 2-pentylfuran) were dominant in the MB materials. Apart from the aromatic molecules, which were present in all fractions, compounds present only in BM, MM or MB were also identified.

Highlights

  • Foxtail millet (Setaria italica Beauv) is one of the oldest cultivated cereals, which has its origins inChina and subsequently was extended into India and over most of Africa and parts of the southernUnited States [1]

  • Foxtail millet plays a very important role in the agriculture and food industry of many developing countries because of its capacity to grow under adverse heat and limited rainfall conditions

  • This work presents the first study on the volatile compound contents of brown millet (BM), milled millet (MM) and millet bran (MB)

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Summary

Introduction

Foxtail millet (Setaria italica Beauv) is one of the oldest cultivated cereals, which has its origins inChina and subsequently was extended into India and over most of Africa and parts of the southernUnited States [1]. Foxtail millet plays a very important role in the agriculture and food industry of many developing countries because of its capacity to grow under adverse heat and limited rainfall conditions. This millet is rich in carbohydrates [2,3,4] and protein [5,6] and contains oils [7,8] and vitamins [9]. It has been recorded that foxtail millet has many nutritional and medical functions It has been used in China as a Traditional Medicine to invigorate the stomach, strengthen the spleen, quench thirst and promote urination. This millet can be used in the treatment of diabetes and cardiovascular diseases [10]

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