Journal
MOLECULES
Volume 26, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/molecules26092778
Keywords
Chinese honey; antimicrobial activity; Fennel honey; Agastache honey; Pomegranate honey; volatile profile
Funding
- Ministry of Agriculture of China [CARS-44]
Ask authors/readers for more resources
Different Chinese monofloral honeys exhibit varying antimicrobial and antioxidant activities. Some honeys show excellent antimicrobial and antioxidant properties, with a significant positive correlation between total antioxidant capacity and total phenol content. The volatile components and unique compounds present in different honey varieties can be successfully detected and analyzed using HS-GC-IMS technology.
Honey has good antimicrobial properties and can be used for medical treatment. The antimicrobial properties of unifloral honey varieties are different. In this study, we evaluated the antimicrobial and antioxidant activities of nine kinds of Chinese monofloral honeys. In addition, headspace gas chromatography-ion mobility spectrometry (HS-GC-IMS) technology was used to detect their volatile components. The relevant results are as follows: 1. The agar diffusion test showed that the diameter of inhibition zone against Staphylococcus aureus of Fennel honey (21.50 +/- 0.41 mm), Agastache honey (20.74 +/- 0.37 mm), and Pomegranate honey (18.16 +/- 0.11 mm) was larger than that of Manuka 12+ honey (14.27 +/- 0.10 mm) and Manuka 20+ honey (16.52 +/- 0.12 mm). The antimicrobial activity of Chinese honey depends on hydrogen peroxide. 2. The total antioxidant capacity of Fennel honey, Agastache honey, and Pomegranate honey was higher than that of other Chinese honeys. There was a significant positive correlation between the total antioxidant capacity and the total phenol content of Chinese honey (r = 0.958). The correlation coefficient between the chroma value of Chinese honey and the total antioxidant and the diameter of inhibition zone was 0.940 and 0.746, respectively. The analyzed dark honeys had better antimicrobial and antioxidant activities. 3. There were significant differences in volatile components among Fennel honey, Agastache honey, Pomegranate honey, and Manuka honey. Hexanal-D and Heptanol were the characteristic components of Fennel honey and Pomegranate honey, respectively. Ethyl 2-methylbutyrate and 3-methylpentanoic acids were the unique compounds of Agastache honey. The flavor fingerprints of the honey samples from different plants can be successfully built using HS-GC-IMS and principal component analysis (PCA) based on their volatile compounds. Fennel honey, Agastache honey, and Pomegranate honey are Chinese honey varieties with excellent antimicrobial properties, and have the potential to be developed into medical grade honey.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available