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author:

An, Tingting (An, Tingting.) [1] | Shen, Shanshan (Shen, Shanshan.) [2] | Zu, Zhongqi (Zu, Zhongqi.) [3] | Chen, Mengxue (Chen, Mengxue.) [4] | Wen, Yu (Wen, Yu.) [5] | Chen, Xu (Chen, Xu.) [6] (Scholars:陈旭) | Chen, Qi (Chen, Qi.) [7] | Wang, Yu (Wang, Yu.) [8] | Wang, Shaoyun (Wang, Shaoyun.) [9] | Gao, Xueling (Gao, Xueling.) [10]

Indexed by:

EI Scopus SCIE

Abstract:

Instant dark tea (IDT) was prepared by liquid-state fermentation inoculating Eurotium cristatum. The changes in the volatile compounds and characteristic aroma of IDT during fermentation were analyzed using gas chromatography-mass spectrometry by collecting fermented samples after 0, 1, 3, 5, 7, and 9 days of fermentation. Components with high odor activity (log(2)(FD) >= 5) were verified by gas chromatography-olfactometry. A total of 107 compounds showed dynamic changes during fermentation over 9 days, including 17 alcohols, 7 acids, 10 ketones, 11 esters, 8 aldehydes, 37 hydrocarbons, 4 phenols, and 13 other compounds. The variety of flavor compounds increased gradually with time within the early stage and achieved a maximum of 79 compounds on day 7 of fermentation. beta-Damascenone showed the highest odor activity (log(2)(FD) = 9) in the day 7 sample, followed by linalool and geraniol. These results indicate that fungal fermentation is critical to the formation of these aromas of IDT.

Keyword:

Fungal fermentation Gaschromatography-olfactometry Instant dark tea Odor-active compounds Volatile compounds

Community:

  • [ 1 ] [An, Tingting]Anhui Agr Univ, Minist Educ,Minist Agr & Rural Affairs, State Key Lab Tea Plant Biol & Utilizat,Anhui Prov, Key Lab Tea Biol & Tea Proc,Int Joint Res Lab Tea, Hefei 230036, Peoples R China
  • [ 2 ] [Shen, Shanshan]Anhui Agr Univ, Minist Educ,Minist Agr & Rural Affairs, State Key Lab Tea Plant Biol & Utilizat,Anhui Prov, Key Lab Tea Biol & Tea Proc,Int Joint Res Lab Tea, Hefei 230036, Peoples R China
  • [ 3 ] [Zu, Zhongqi]Anhui Agr Univ, Minist Educ,Minist Agr & Rural Affairs, State Key Lab Tea Plant Biol & Utilizat,Anhui Prov, Key Lab Tea Biol & Tea Proc,Int Joint Res Lab Tea, Hefei 230036, Peoples R China
  • [ 4 ] [Chen, Mengxue]Anhui Agr Univ, Minist Educ,Minist Agr & Rural Affairs, State Key Lab Tea Plant Biol & Utilizat,Anhui Prov, Key Lab Tea Biol & Tea Proc,Int Joint Res Lab Tea, Hefei 230036, Peoples R China
  • [ 5 ] [Wen, Yu]Anhui Agr Univ, Minist Educ,Minist Agr & Rural Affairs, State Key Lab Tea Plant Biol & Utilizat,Anhui Prov, Key Lab Tea Biol & Tea Proc,Int Joint Res Lab Tea, Hefei 230036, Peoples R China
  • [ 6 ] [Chen, Qi]Anhui Agr Univ, Minist Educ,Minist Agr & Rural Affairs, State Key Lab Tea Plant Biol & Utilizat,Anhui Prov, Key Lab Tea Biol & Tea Proc,Int Joint Res Lab Tea, Hefei 230036, Peoples R China
  • [ 7 ] [Wang, Yu]Anhui Agr Univ, Minist Educ,Minist Agr & Rural Affairs, State Key Lab Tea Plant Biol & Utilizat,Anhui Prov, Key Lab Tea Biol & Tea Proc,Int Joint Res Lab Tea, Hefei 230036, Peoples R China
  • [ 8 ] [Gao, Xueling]Anhui Agr Univ, Minist Educ,Minist Agr & Rural Affairs, State Key Lab Tea Plant Biol & Utilizat,Anhui Prov, Key Lab Tea Biol & Tea Proc,Int Joint Res Lab Tea, Hefei 230036, Peoples R China
  • [ 9 ] [Chen, Xu]Fuzhou Univ, Coll Biol Sci & Engn, Fuzhou 350108, Peoples R China
  • [ 10 ] [Wang, Shaoyun]Fuzhou Univ, Coll Biol Sci & Engn, Fuzhou 350108, Peoples R China

Reprint 's Address:

  • [Gao, Xueling]Anhui Agr Univ, Minist Educ,Minist Agr & Rural Affairs, State Key Lab Tea Plant Biol & Utilizat,Anhui Prov, Key Lab Tea Biol & Tea Proc,Int Joint Res Lab Tea, Hefei 230036, Peoples R China;;

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Source :

FOOD CHEMISTRY

ISSN: 0308-8146

Year: 2023

Volume: 410

8 . 5

JCR@2023

8 . 5 0 0

JCR@2023

ESI Discipline: AGRICULTURAL SCIENCES;

ESI HC Threshold:24

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 15

SCOPUS Cited Count: 20

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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