Study of volatile flavor derived from lipids degeneration in yak milk based on semiquantitative lipidomics
Milk lipids greatly affect the volatile flavor of milk, and the relationship between lipids and volatile flavor in yak milk was explored in this study. The volatile flavor compounds (VFCs), lipids profile, fatty acids in yak ordinary milk and colostrum were detected with HP/SPME-GC-MS, the semiquantitative lipidomics based on LC-MS/MS, GC-MS, respectively. The VFCs differences in yak milk were closely related to 1-((1 s,3ar,4r,7 s,7as)-4-hydroxy-7-isopropyl-4-methyloctahloctahydro-1h-inden-1-Yl)-ethanone,2,6,6-trimethyl-2,4-cycloheptadien-1-one, pentanal, 2-phenylethyl propionate, octanoic acid methyl ester, diphosphoric acid diisooctyl ester, (Z)-3,4,4-trimethyl-5-oxo-2-hexenoic acid and acetic acid. The volatile flavor in yak milk was well correlated with milk lipids, and TG(4:0_12:3_18:1), TG(6:0_8:0_18:1), TG(4:0_12:3_18:1), TG(12:0_18:2_18:3) and TG(16:0e_18:1_22:5) were the crucial lipid molecules affecting volatile flavor. The degeneration of above lipids by hydrolysis produced some fatty acids and alcohol, then these compounds were further derived into other VFCs especially above crucial 8 molecules. This study provided a theoretical basis for improving the volatile flavor by controlling lipids in yak milk.
Authors
- Xiaoyun Wu
- Lin Xiong (ORCID: https://orcid.org/0000-0001-7960-2423)
- Shaoke Guo (ORCID: https://orcid.org/0000-0002-7162-6989)
- Yandong Kang (ORCID: https://orcid.org/0000-0001-8844-3321)
- Xian Guo (ORCID: https://orcid.org/0000-0003-2390-4777)
- Jie Pei (ORCID: https://orcid.org/0000-0001-7726-3077)
- Xingdong Wang (ORCID: https://orcid.org/0000-0002-6008-4731)
- Pengjia Bao (ORCID: https://orcid.org/0000-0001-7671-1050)
- Mengli Cao (ORCID: https://orcid.org/0000-0001-5755-6673)
- Min Chu (ORCID: https://orcid.org/0000-0002-7542-6204)
- Zhiqiang Ding
- Qianyun Ge
Institutions
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences (CN)
- Chinese Academy of Agricultural Sciences (CN)
- Ministry of Agriculture and Rural Affairs (CN)
Publication Details
- Journal
- Food Chemistry X
- Published
- 2024-08-05
- DOI
- https://doi.org/10.1016/j.fochx.2024.101715
- Citations
- 9
- Primary Topic
- Meat and Animal Product Quality
- Type
- article
- Field-Weighted Citation Impact
- 3.07
Funders
- Marathon
- MOFET Institute
- Ministry of Science and Technology of the People's Republic of China
- Zhejiang Academy of Agricultural Sciences
- Shanghai Municipal Commission of Agriculture and Rural Affairs
- Ministry of Agriculture and Rural Affairs of the People's Republic of China
- Ministry of Ecology and Environment, The People’s Republic of China
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding
- Hubei Provincial Central Guidance Local Science and Technology Development Project