Effects of Deoxidizing Desiccant and Packaging Method on the Storage Quality of Dried Osmanthus Flowers

In order to improve the storage stability of dried Osmanthus fragrans flowers, explore a safe and green compound deoxidizer suitable for dried Osmanthus fragrans flowers storage, and determine the effective packaging method of dried Osmanthus fragrans flowers. In this study, the color saturation value (Cab value) and the total number of colonies of dried Osmanthus fragrans flowers were used as indexes, combined with naked eye observation, to explore the effects of different packaging methods such as composite deoxidizing desiccant, polyethylene plastic material and opaque aluminum coating on the storage quality of dried Osmanthus fragrans flowers. The results showed that the package was packed in a single layer of opaque aluminum coated bag, supplemented with an ideal composite deoxidizing desiccant (fiber desiccant:glucose oxidase=10:1), the dried Osmanthus flowers could be preserved for 12 months that under the drying condition, its color still be golden yellow, its Cab value was 98.20±0.14 and the colonies number was 3.16×10³ CFU/g, the sensory quality and hygienic index of the product would maintain at an desired level. Therefore, the deoxidation desiccant composed of fiber desiccant and glucose oxidase at a ratio of 10:1 and single-layer opaque aluminized bag packaging could significantly improve the storage quality of dried Osmanthus fragrans flowers.