| 摘要: |
| 目的：比较野生型、湘靖28、辐射一号3种不同茯苓品种加工性能及多糖含量，筛选品性最优良品种。方法：采用恒温烘干至恒重法，分别测定3种不同茯苓品种的折干率、出品率、皮肉比率等加工性能，采用碱浸法提取多糖并利用紫外分光光度法测定其茯苓多糖含量。结果：在折干率、出品率、皮肉比3个加工性能上，辐射一号相比野生型、湘靖28具有明显优势；在多糖含量方面，辐射一号与湘靖28无显著差异，但高于野生型10%。结论：辐射一号是一个相对较优的品种，主要的经济价值指标尤其明显，可以作为新的品种进行推广。 |
| 关键词: 茯苓 加工性能 多糖含量 实验研究 |
| DOI： |
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| Processing properties and polysaccharide content of three types of Poria cocos |
| YANG Huan-zhi，,YUAN Tao，,TANG Juan |
| (College of Bioscience and Biotechnology，Hunan Agricultural University，Changsha 410128，Hunan，China;Hunan Bestcome Traditional Chinese Medicine Co.，Ltd.，Huaihua 418000，Hunan，China;Hunan Engineering Laboratory for Good Agricultural Practice and Comprehensive Utilization of Famous-Region Medicinal Plants，Changsha 410128，Hunan，China) |
| Abstract: |
| Objective：To investigate the processing properties and polysaccharide content of three types of Poria cocos，i.e.，wild-type Poria cocos，Xiangjing 28，and Radiation I，and to screen out the type with the best properties.Methods：The three types of Poria cocos were dried to a constant weight at a constant temperature，and processing properties including drying rate，yield，and peel/pulp ratio were measured.The alkaline leaching method was used to extract polysaccharides，and ultraviolet spectrophotometry was used to measure the content of polysaccharides.Results：Compared with wild-type Poria cocos and Xiangjing 28，Radiation I had significantly better drying rate，yield，and peel/pulp ratio.As for the content of polysaccharides，there was no significant difference between Radiation I and Xiangjing 28，while the content of polysaccharides in Radiation I was 10% higher than that in wild-type Poria cocos.Conclusion：Radiation I is a better type of Poria cocos than wild-type Poria cocos and Xiangjing 28 and has a good economic value，and therefore，it can be promoted as a new type. |
| Key words: Poria cocos processing property polysaccharide content experimental study |
