Effects of Ultrasonic Treatment on the Flavonoids Content of Peanut Seeds During Germination
To promote the enrichment of flavonoids in peanut sprouts,the seeds of'Luhua 1'peanut were used as raw materials and treated with ultrasonic waves.The effects of ultrasonic power,ultrasonic temperature,and ultrasonic time on the enrichment of flavonoids in peanut sprouts were studied.The results showed that when the ultrasonic power was less than 200 W,there was no significant effect on peanut seed germination and peanut seedling flavonoid enrichment(P>0.05);when peanut seeds were treated with an ultrasound power of 300 W,the germination of peanut seeds and the enrichment of flavonoids in peanut sprouts increased signifi-cantly(P<0.05),but the flavonoid content in peanut sprouts gradually decreased with the further increase of ultrasound power.After being sterilized in 0.5% KMnO4 solution,the peanut seeds were treated with 300 W power ultrasonic for 15 min at 30℃,and then soaked in water for 6 h.The treated peanut seeds were cultured in the dark for 7 days at 27℃ and(85±5)% relative humidity,the flavonoid content in peanut sprouts was 5.883 mg/g higher significantly than that of the control group(P<0.05).Thus,suitable temperature,short time and low power ultrasonic treatment could promote peanut seed germination and the enrichment of fla-vonoids in peanut sprouts.
flavonoids'Luhua 1'peanut sprouts and seedlingsultrasoundenrichment effect