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- Title
Investigation of the Maturity Evaluation Indicator of Honey in Natural Ripening Process: The Case of Rape Honey.
- Authors
Zhang, Guo-Zhi; Tian, Jing; Zhang, Yan-Zheng; Li, Shan-Shan; Zheng, Huo-Qing; Hu, Fu-Liang
- Abstract
Honey maturity, a critical factor for quality evaluation, is difficult to detect in the current industry research. The objective of this study was to explore the changes in the composition and find potential maturity indicators of rape honey at different maturity stages through evaluating physicochemical parameters (moisture, sugars, pH, electrical conductivity, total protein, total phenols, total flavonoids, proline, and enzyme activity), the antioxidant capacity, and volatile components. The relevant results are as follows: 1. As the maturity increased, the moisture, sucrose, and maltose content of rape honey gradually decreased, while the glucose, fructose, and total protein content gradually increased. The activities of diastase, invertase, and β-glucosidase showed a significant increase with the elevation of ripening days, and the activity of glucose oxidase reached the highest before completely capping. 2. The antioxidant capacity of honey increased with the increase in honey maturity. There is a significant and strong correlation between the bioactive components of rape honey and antioxidant capacity (p < 0.01, |r| > 0.857). 3. Thirty-five volatile components have been identified. Nonanal, benzaldehyde monomer, and benzaldehyde dimer can be used as potential indicators for the identification of honey maturity stages. Principal component analysis (PCA) based on antioxidant parameters and volatile components can identify the maturity of honey.
- Subjects
HONEY; SUCROSE; BIOACTIVE compounds; FRUCTOSE; GLUCOSE oxidase; PRINCIPAL components analysis; OXIDANT status; OLIVE oil
- Publication
Foods, 2021, Vol 10, Issue 11, p2882
- ISSN
2304-8158
- Publication type
Article
- DOI
10.3390/foods10112882