![]() ![]() Instruments and EquipmentĮlectronic nose (SuperNose-14) was purchased from ISENSO corporation (NYC, USA) and gas chromatography-mass spectrometry (GCMS-QP2010UL) was from Shimadzu corporation (Kyoto, Japan). The sequence of batches in relation to locations is as follows: Hei 1-Hei 15, Ji 16-Ji 30, Chuan 31-Chuan 36, and Hu 37-Hu 44, respectively. auricula were collected from Heilongjiang, Jilin, Sichuan, and Shanghai Province in China. auricula from four different origins from the macro and micro perspectives, and the types, contents, and ROAV of different volatile components from the different origins are compared. In this paper, electronic nose and GC-MS are combined to detect and analyze volatile components of A. about the comparative study on the basswood and bagging A. auricula polysaccharides and melanin, but rarely on its volatile components and sensory quality, except a few researches such as that conducted by Li et al. To date, the literature mainly focuses on the medicinal efficacy of A. Furthermore, the contribution of the characteristic compounds can be determined by calculating relative odor activity value (ROAV). ![]() At present, electronic nose combined with GC-MS technology has become an effective method for fast and accurate analysis of the overall odor as well as the detailed volatile components and their contents. The analysis results of GC-MS can complement the results of electronic nose, so the combination of the two technologies can analyze the sample odor from the macro and micro level. GC-MS can analyze the types and contents of volatile components in the measured samples but cannot study the contribution of these volatile components to the overall odor as a whole. But it has limitations in relation to its inability to perform qualitative and quantitative analysis on some special volatile components. The electronic nose uses a series of built-in gas sensors to get different response signal maps for different odors to identify these odors, which can detect and analyze the characteristics of volatile components in the tested samples conveniently and accurately. used this technology to study the quality of perfume. combined electronic nose, odor threshold, gas chromatography, and olfactory measurement methods for analysis of apple juice ester compounds. used this technology to distinguish the Kiwifruit from different origins in China. used electronic nose to diagnose the helminth infectious diseases based on the patience’s exhalations. It is necessary and important to establish a fast and accurate analysis method.Īs a new odor scanner developed in recent years, electronic nose had been widely used in medicine, food, beverage, cosmetics, and other fields. However, so far, the sensory indices, such as color or shape, instead of these critical components are used to evaluate the quality of A. auricula polysaccharide has the function of improving human immunity as well as the effects of antitumor, antioxidant, hypoglycemic, and hemostatic. auricula has many active compositions including cellulose, polysaccharides, melanin, calcium, iron, and phosphorus. auricula’s function of promoting blood circulation and invigorating the lung was recorded in Shennong Herbal Classic which is the earliest book about Traditional Chinese Medicine. It has been used as food and medicine for thousands of years. IntroductionĪuricularia auricula, a kind of gum fungus with edible and medicinal value, belongs to family Auriculariaceae. According to the relative odor activity value (ROAV), it was found that the key compounds that caused the aroma difference between different origins were 1-octene-3-ol, cis-3-nonene-1-ol, ( E)-2-octenal, ( E)-2-nonenal, ( E, E)-2,4-nonadienal, and 3-methyl butanal. auricula from the four origins was relatively high. The relative content of acetic acid and diethyl azodicarboxylate in A. ![]() The results showed that 98 volatile components were detected and 23 of them were common components, including alcohols, aldehydes, acids, esters, hydrocarbons, and other volatile components. ![]() auricula qualitatively and quantitatively. GC-MS was used to further analyze the volatile compounds in A. The results showed that the electronic nose could obviously distinguish the samples from Jilin and Shanghai with a high degree of discrimination, while it was inappropriate to distinguish the samples from Heilongjiang and Sichuan Province. auricula in Heilongjiang, Jilin, Shanghai, and Sichuan provinces to investigate the differences and characteristics of A. Auricularia auricula is a kind of nutrient-rich edible fungus, which has the reputation of “king of vegetarians.” In this paper, the electronic nose combined with GC-MS technology was used to analyze the volatile components of A. ![]()
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