Analysis of volatile compounds in L. edodes blanched by hot water and microwave |
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| Authors: | Biao Li Benard Muinde Kimatu Chengjie Li Fei Pei Qiuhui Hu Liyan Zhao |
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| Affiliation: | 1. College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China;2. Department of Dairy and Food Science and Technology, Egerton University, Egerton, Kenya;3. College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China |
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| Abstract: | The comprehensive flavour characterisation and volatile compounds of raw L. edodes, hot water blanching (HB) sample and microwave blanching (MB) sample were comparatively analysed by electronic nose technology and headspace solid‐phase micro‐extraction combined with gas chromatography‐mass spectrometry (HS‐SPME‐GC‐MS). Results indicated that volatile components in L. edodes markedly changed after HB and MB. Volatile compounds of raw L. edodes consisted mainly ketones, sulphide and alcohols, and 3‐octanone, as well as 1‐octen‐3‐one, were the major compounds. The content of ketones and sulphides in blanched samples markedly decreased, while the relative content of aldehydes, hydrocarbons and esters increased, which became the major volatile compounds of treatment samples. In addition, the percentage contents of esters, alcohols and sulphides in MB samples were significantly (P < 0.05) higher than that in HB samples, especially 1‐octen‐3‐ol, which contributes more to mushroom flavour. Therefore, MB is a better pretreatment method of L. edodes processing and cooking according to the results of experiment. |
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| Keywords: | Blanching electronic nose HS‐SPME‐GC‐MS
Lentinula edodes
volatile compounds |
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