Objective To optimize the processing technology for preserved fruit made from red pitaya peel. Methods The 3 primary factors sodium citrate concentration, sugar solution concentration, and baking time were selected based on single factor experiments. Sensory scores of the preserved red pitaya peel fruit were used as response variables, and the optimal processing conditions were determined using response surface methodology. Results The optimal processing conditions for the peel and preserved fruit of red-fleshed pitaya was determined: 0.75% sodium citrate (for color retention), 40% sugar solution concentration and a baking time of 3.0 hours. The resulting product exhibited a vibrant color and distinctive taste. Conclusion This study proposes a novel method for producing preserved fruit using red pitaya peel, thereby effectively utilizing by-products from pitaya processing.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |