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首页> 外文期刊>African Journal of Biotechnology >Ultrasonic extraction of flavonoids and phenolics from loquat (Eriobotrya japonica Lindl.) flowers
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Ultrasonic extraction of flavonoids and phenolics from loquat (Eriobotrya japonica Lindl.) flowers

机译：超声波提取lo花中的类黄酮和酚类物质

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摘要

Ethanol was used to extract flavonoids and phenolics from loquat?(Eriobotrya japonica?Lindl. cv. Ruantiaobaisha) flowers with ultrasonic pharmaceutical managing machine. Single-factor and orthogonal experiment were used to investigate the optimum extraction condition. The results showed that, the combination of 30°C, 80 min, 60% ethanol and 1:40 material ratio was optimum extraction condition with the highest yields of flavonoids and phenolics at 47 kHz/500 W. Under the optimum extraction condition, two consecutive extractions was enough, the extraction rates of flavonoids and phenolics were all more than 90%, with the contents of 10.59 and 102.02 mg/g dry weight, respectively.
机译：利用超声波药物管理机，用乙醇从lo花中提取黄酮类和酚类物质。采用单因素正交试验研究了最佳提取条件。结果表明，30°C，80 min，60％乙醇和1:40物料比的组合是最佳提取条件，在47 kHz / 500 W下黄酮类化合物和酚类的收率最高。连续提取就足够了，类黄酮和酚类的提取率均超过90％，干重分别为10.59和102.02 mg / g。

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