Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 166, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.lwt.2022.113754
Keywords
Oudemansiella raphanipes; Cutting root; Low temperature storage; Non-volatile; Volatile compounds
Categories
Funding
- Edible mushroom resources exploitation and the key technology development in efficient processing [2018YFD0400200]
- Liaoning Province Science and Technology Planning Project [2020JH2/10200013]
- Central Guidance on Local Science and Technology Development Project of Liaoning Province [2021JH6/10500133]
- Shenyang Agricultural University, high-end talent introduction fund [SYAU20160003]
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This study investigated the effects of different harvesting methods and storage temperatures on the compound characteristics of fresh O. raphanipes. The results showed that cutting root treatment effectively increased phenolic and flavonoid contents, maintained sensory scores and umami value, and increased volatile compounds, while inhibiting off-flavor acids production.
Oudemansiella raphanipes (O. raphanipes) has recently been gaining popularity due to its active and flavor compounds. In this study, the profiles of phenolics, flavonoids, non-volatile and volatile compounds of fresh O. raphanipes were subjected to cutting root (CR) and pulling root (PR) harvesting methods during different storage temperatures (5 C and 20 C) were investigated. The results showed that CR treatment effectively increased phenolic and flavonoid contents, maintained the sensory scores and the umami value based on e -tongue, increased more C8 volatile contents, and inhibited off-flavor acids production during 5 C storage. The EUC values of the fresh O. raphanipes ranged from 4.72 to 23.66 g monosodium glutamate (MSG) 100 g-1, which TAVs were at a relatively high level in CR treatment than in PR treatment. A two-way analysis of variance (ANOVA) and principal component analysis (PCA) revealed statistically significant differences in different har-vesting methods that affected the mushroom flavor. Eleven components were screened as taste characteristics contributors by partial least squares regression model (PLS-R) analysis, including Glu, umami nucleotides, and 1-octene-3-ol and 3-octanone. Thus, the cutting root treatment is a promising method for obtaining the high flavor quality of fresh O. raphanipes during cooling storage.
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