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Hop bitter acids: resources, biosynthesis, and applications
Guoqing Zhang1, Nan Zhang1, Anran Yang1
1State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.
Applied Microbiology and Biotechnology
|May 22, 2021
Summary
Hop bitter acids (α- and β-acids) from Humulus lupulus are reviewed for brewing, food, and medicinal uses. Challenges in their biosynthesis are discussed, alongside future trends in microbial production.
Area of Science:
- Biotechnology
- Food Science
- Medicinal Chemistry
Background:
- Hop bitter acids (α- and β-acids) are key compounds in Humulus lupulus.
- Traditionally used in brewing and food industries for flavor and as additives.
- Emerging applications in medicinal and pharmaceutical fields are driving demand.
Purpose of the Study:
- To review updated information on hop bitter acids.
- To summarize their applications in brewing, food, and medicine.
- To discuss challenges and future trends in microbial biosynthesis.
Main Methods:
- Literature review of hop bitter acid structures and applications.
- Analysis of current biosynthesis challenges.
- Exploration of microbial cell factory development.
Main Results:
- Hop bitter acids have diverse structures and applications.
- Biosynthesis of specific hop bitter acids is complex and challenging.
- Novel applications in medicine highlight the need for efficient production.
Conclusions:
- Hop bitter acids are valuable compounds with expanding applications.
- Microbial biosynthesis offers a promising route for production.
- Further development of robust microbial factories is crucial for meeting demand.
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