dc.contributor.author |
Feng, Tao |
|
dc.contributor.author |
Sun, Jiaqing |
|
dc.contributor.author |
Wang, Kai |
|
dc.contributor.author |
Song, Shiqing |
|
dc.contributor.author |
Chen, Da |
|
dc.contributor.author |
Zhuang, Haining |
|
dc.contributor.author |
Lu, Jun |
|
dc.contributor.author |
Li, Dejun |
|
dc.contributor.author |
Meng, Xianle |
|
dc.contributor.author |
Shi, Mingliang |
|
dc.contributor.author |
Yao, Lingyun |
|
dc.contributor.author |
Ho, Chi-Tang |
|
dc.coverage.spatial |
United States |
|
dc.date.accessioned |
2024-04-03T00:09:30Z |
|
dc.date.available |
2024-04-03T00:09:30Z |
|
dc.date.issued |
2022-10 |
|
dc.identifier.citation |
(2022). Journal of Agricultural and Food Chemistry, 70(42), 13741-13753. |
|
dc.identifier.issn |
0021-8561 |
|
dc.identifier.uri |
https://hdl.handle.net/2292/67883 |
|
dc.description.abstract |
Steeping process is an important factor for aroma release of tea, which has rarely been investigated for the aroma changes of raw Pu-erh tea (RAPT). In addition, the comprehensive aroma characteristics identification of RAPT infusion is necessary. In this study, GC-IMS coupled with principal component analysis (PCA) was used to clarify the difference of volatile profiles during the steeping process of RAPT. Furthermore, the volatiles contained in the RAPT infusion were extracted by three pretreatment methods (HS-SPME, SBSE, and SAFE) and identified using GC-O-MS. According to the odor activity value, 28 of 66 compounds were categorized as aroma-active compounds. Aroma recombination and omission experiments showed that "fatty", "green", "fruity", and "floral" are considered to be the main aroma attributes of RAPT infusion with a strong relationship with 1-octen-3-one, 1-octen-3-ol, (<i>E</i>)-2-octenal, β-ionone, linalool, etc. This study will contribute a better understanding of the mechanism of the RAPT steeping process and volatile generation. |
|
dc.format.medium |
Print-Electronic |
|
dc.language |
eng |
|
dc.publisher |
American Chemical Society (ACS) |
|
dc.relation.ispartofseries |
Journal of agricultural and food chemistry |
|
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. |
|
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
|
dc.subject |
Tea |
|
dc.subject |
Gas Chromatography-Mass Spectrometry |
|
dc.subject |
Volatile Organic Compounds |
|
dc.subject |
Olfactometry |
|
dc.subject |
Odorants |
|
dc.subject |
Ion Mobility Spectrometry |
|
dc.subject |
aroma recombination and omission |
|
dc.subject |
odor activity value |
|
dc.subject |
pretreatment methods |
|
dc.subject |
raw Pu-erh tea |
|
dc.subject |
steeping process |
|
dc.subject |
volatile compounds |
|
dc.subject |
3401 Analytical Chemistry |
|
dc.subject |
30 Agricultural, Veterinary and Food Sciences |
|
dc.subject |
3006 Food Sciences |
|
dc.subject |
34 Chemical Sciences |
|
dc.subject |
Science & Technology |
|
dc.subject |
Life Sciences & Biomedicine |
|
dc.subject |
Physical Sciences |
|
dc.subject |
Agriculture, Multidisciplinary |
|
dc.subject |
Chemistry, Applied |
|
dc.subject |
Food Science & Technology |
|
dc.subject |
Agriculture |
|
dc.subject |
Chemistry |
|
dc.subject |
EXTRACTION |
|
dc.subject |
03 Chemical Sciences |
|
dc.subject |
07 Agricultural and Veterinary Sciences |
|
dc.subject |
09 Engineering |
|
dc.subject |
40 Engineering |
|
dc.title |
Variation in Volatile Compounds of Raw Pu-Erh Tea upon Steeping Process by Gas Chromatography-Ion Mobility Spectrometry and Characterization of the Aroma-Active Compounds in Tea Infusion Using Gas Chromatography-Olfactometry-Mass Spectrometry |
|
dc.type |
Journal Article |
|
dc.identifier.doi |
10.1021/acs.jafc.2c04342 |
|
pubs.issue |
42 |
|
pubs.begin-page |
13741 |
|
pubs.volume |
70 |
|
dc.date.updated |
2024-03-14T14:48:27Z |
|
dc.rights.holder |
Copyright: American Chemical Society |
en |
dc.identifier.pmid |
36225119 (pubmed) |
|
pubs.author-url |
https://pubs.acs.org/doi/10.1021/acs.jafc.2c04342 |
|
pubs.end-page |
13753 |
|
pubs.publication-status |
Published |
|
dc.rights.accessrights |
http://purl.org/eprint/accessRights/RetrictedAccess |
en |
pubs.subtype |
Journal Article |
|
pubs.elements-id |
926035 |
|
pubs.org-id |
Bioengineering Institute |
|
dc.identifier.eissn |
1520-5118 |
|
pubs.record-created-at-source-date |
2024-03-15 |
|
pubs.online-publication-date |
2022-10-12 |
|