关键词: 非洲菊, 保色, 干燥, RGB定色, 色差

Abstract:

Using red Gerbera jamesonii as experimental material， different kinds and concentrations of color retention agents were used to treat Gerbera jamesonii for color retention at different times， and two methods of natural drying and sodium chloride embedding were used to dry Gerbera jamesonii， so as to select the appropriate dry color retention method. Results： The sensory score of 5% sucrose +10% tartaric acid solution in the two drying methods was the highest after 11 h treatment. The softening degree was 10% tin chloride solution > 5% sucrose +10% tartaric acid solution > 10% citric acid solution. The color of petals of Gerbera jamesonii treated with 5% sucrose +10% tartaric acid solution for 11 h under two drying methods was the closest to that of fresh flowers. Under natural drying， the color difference of 5% sucrose +10% tartaric acid solution for 11 h was the smallest， and that of 10% tin chloride solution for 11 h was the largest. Under the condition of sodium chloride embedding and drying， the color difference of 5% sucrose +10% tartaric acid solution for 11 h was the smallest， and that of 10% citric acid solution for 14 h was the largest. The results showed that the best formula for color retention of Gerbera jamesonii was soaking in 5% sucrose +10% tartaric acid solution for 11 h， and embedding drying can achieve good anti-wrinkle effect.

Key words:  , Gerbera jamesonii； color retention； drying； RGB color fixing； color difference