Effect of hot air drying on volatile compounds of Flammulina velutipes detected by HS-SPME-GC-MS and electronic nose.

Volatile compounds are important factors that affect the flavor quality of Flammulina velutipes, but the changes occurring during hot air drying is still unclear. To clarify the dynamic changes of flavor components during hot air drying, comprehensive flavor characterization and volatile compounds of F. velutipes were evaluated using electronic nose technology and headspace solid phase micro-extraction combined with gas chromatography-mass spectrometry (HS-SPME-GC-MS), respectively. Results showed that volatile components in F. velutipes significantly changed during hot air drying according to the principal component analysis and radar fingerprint chart of electronic nose. Volatile compounds of fresh F. velutipes consisted mainly of ketones, aldehydes and alcohols, and 3-octanone was the dominant compound. Drying process could significantly decrease the relative content of ketones and promoted the generation of alcohols, acids, and esters, which became the main volatile compounds of dried F. velutipes. These may provide a theoretical basis for the formation mechanism of flavor substances in dried F. velutipes.

[1]  Q. Hu,et al.  Changes in non-volatile taste components of button mushroom (Agaricus bisporus) during different stages of freeze drying and freeze drying combined with microwave vacuum drying. , 2014, Food chemistry.

[2]  Young-S. Kim,et al.  Characterization of aroma-active compounds in raw and cooked pine-mushrooms (Tricholoma matsutake Sing.). , 2006, Journal of agricultural and food chemistry.

[3]  Yonghong Yan,et al.  Rapid discrimination of Apiaceae plants by electronic nose coupled with multivariate statistical analyses. , 2013, Journal of pharmaceutical and biomedical analysis.

[4]  T. Misharina,et al.  Formation of flavor of dry champignons (Agaricus bisporus L.) , 2010, Applied Biochemistry and Microbiology.

[5]  F. Mencarelli,et al.  Influence of postharvest water stress on lipoxygenase and alcohol dehydrogenase activities, and on the composition of some volatile compounds of Gewürztraminer grapes dehydrated under controlled and uncontrolled thermohygrometric conditions , 2007 .

[6]  Jun Wang,et al.  Electronic Tongue Coupled with Physicochemical Analysis for the Recognition of Orange Beverages , 2012 .

[7]  Royston Goodacre,et al.  Taking your breath away: metabolomics breathes life in to personalized medicine. , 2014, Trends in biotechnology.

[8]  J. Simal-Gándara,et al.  Evolution of the aromatic profile in Garnacha Tintorera grapes during raisining and comparison with that of the naturally sweet wine obtained. , 2013, Food chemistry.

[9]  George-John E. Nychas,et al.  Sensory and microbiological quality assessment of beef fillets using a portable electronic nose in tandem with support vector machine analysis , 2013 .

[10]  Kejing An,et al.  Effect of drying methods on volatiles of Chinese ginger (Zingiber officinale Roscoe) , 2012 .

[11]  Kenji Yamamoto,et al.  Discrimination Method of the Volatiles from Fresh Mushrooms by an Electronic Nose Using a Trapping System and Statistical Standardization to Reduce Sensor Value Variation , 2013, Sensors.

[12]  C. Natarajan,et al.  Rediscovering cyanobacteria as valuable sources of bioactive compounds (Review) , 2010, Applied Biochemistry and Microbiology.

[13]  M. Dueñas,et al.  Formation of vitisins and anthocyanin-flavanol adducts during red grape drying. , 2012, Journal of agricultural and food chemistry.

[14]  G. Srzednicki,et al.  Volatile compounds in fresh, cooked fresh, dried and cooked dried Agaricus bisporus using ambient temperature vacuum distillation. , 2014 .

[15]  P. Kalač.  A review of chemical composition and nutritional value of wild-growing and cultivated mushrooms. , 2013, Journal of the science of food and agriculture.

[16]  Wei Peng,et al.  Effect of different cooking methods on the flavour constituents of mushroom (Agaricus bisporus (Lange) Sing) soup , 2011 .

[17]  Yanfang Liu,et al.  Effects of drying methods on the tasty compounds of Pleurotus eryngii. , 2015, Food chemistry.

[18]  S. Ebeler,et al.  HS-SPME GC/MS characterization of volatiles in raw and dry-roasted almonds (Prunus dulcis). , 2014, Food chemistry.

[19]  Jiaoyan Ren,et al.  Characterization of antioxidant activity and volatile compounds of Maillard reaction products derived from different peptide fractions of peanut hydrolysate , 2011 .

[20]  J. Ko,et al.  Interruption of lung cancer cell migration and proliferation by fungal immunomodulatory protein FIP-fve from Flammulina velutipes. , 2013, Journal of agricultural and food chemistry.

[21]  M. Malinconico,et al.  De-hydration of apples by innovative bio-films drying. , 2010 .

[22]  P. Jing,et al.  Multiple-fingerprint analysis for investigating quality control of Flammulina velutipes fruiting body polysaccharides. , 2014, Journal of agricultural and food chemistry.

[23]  A. Andrés,et al.  Volatile profile of dehydrated cherry tomato: Influences of osmotic pre-treatment and microwave power , 2012 .

[24]  D. Barrett,et al.  Thermal, High Pressure, and Electric Field Processing Effects on Plant Cell Membrane Integrity and Relevance to Fruit and Vegetable Quality , 2010, Journal of food science.

[25]  Yan Ping Cao,et al.  Effect of modified atmosphere packaging (MAP) with low and superatmospheric oxygen on the quality and antioxidant enzyme system of golden needle mushrooms (Flammulina velutipes) during postharvest storage , 2011 .

[26]  Yanyun Zhao,et al.  Effect of different drying methods on the myosin structure, amino acid composition, protein digestibility and volatile profile of squid fillets. , 2015, Food chemistry.

[27]  P. Baptista,et al.  Effects of conservation treatment and cooking on the chemical composition and antioxidant activity of Portuguese wild edible mushrooms. , 2007, Journal of agricultural and food chemistry.

[28]  Jun Wang,et al.  Qualitative and quantitative analysis on aroma characteristics of ginseng at different ages using E-nose and GC-MS combined with chemometrics. , 2015, Journal of pharmaceutical and biomedical analysis.

[29]  Ganesh Kumar Mani,et al.  Electronic noses for food quality : a review , 2015 .

[30]  Elizabeth A. Baldwin,et al.  Electronic Noses and Tongues: Applications for the Food and Pharmaceutical Industries , 2011, Sensors.

[31]  Chung-May Wu,et al.  Volatile Compounds in Fresh and Processed Shiitake Mushrooms (Lentinus edodes Sing.) , 2000 .

[32]  Amalia Berna,et al.  Metal Oxide Sensors for Electronic Noses and Their Application to Food Analysis , 2010, Sensors.