Using young orange fruits as raw materials,the extraction and crystallization processes of hesperidin were optimized.Through single factor experiments and response surface analysis,the optimal extraction process conditions were determined to be a solid-liquid ratio of 1∶6(g/mL),extraction time of 100 min,alkaline concentration of 0.4%,and extraction temperature of 25 ℃;The optimal crystallization process conditions were pH 8,holding temperature of 50 ℃,holding time of 130 min,and standing time of 12.5 h.Under this condition,the yield of hesperidin products reached 96.48%,and the content reached 98.16%.The study provided theoretical and technical support for extracting hesperidin from young orange fruits.
young orange fruitshesperidinextractextraction ratecrystallization