摘要
为探究不同干燥方式、不同存储温度和存储时间对羊栖菜中岩藻黄素稳定性的影响,本研究考察了三种不同干燥方式,包括自然阴干、低温烘干和冷冻干燥,对羊栖菜中岩藻黄素稳定性的影响。结果表明采用冷冻干燥所得羊栖菜,含水量低,岩藻黄素含量高,达到699.2μg/g,岩藻黄素保留率为94.7%,远高于自然阴干及低温烘干。因此,冷冻干燥是最佳干燥方法。考察了四个不同温度(-20、4、25、30℃)存储对冻干羊栖菜中岩藻黄素稳定性的影响,结果表明随着存储温度的升高,岩藻黄素的降解率明显增高,因此,-20℃为最佳储存温度。
This study investigated the effects of different drying methods,storage temperatures and stored time on the stability of fucoxanthin from Sargassum fusiforme.Effects of three different drying methods(air-dried in the shade at room temperature,low-temperature drying method and vacuum freeze drying method) on the stability of fucoxanthin from S.fusiforme were discussed.The results showed that compared with low-temperature drying method and air-dried in the shade at room temperature,vacuum freeze drying method was the best drying method due to S.fusiforme treated with this method had lower moisture content,higher content of fucoxanthin(699.2 μg/g) and higher retention of fucoxanthin(94.7%).In exploring the effects of different temperatures(-20,4,25,30 ℃) on fucoxanthin from S.fusiforme,the results showed that the degradation rate of fucoxanthin was obviously increased with the increase of storage temperatures.Therefore,-20 ℃ was the best storage temperature for S.fusiforme.
引文
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