【摘要】 为研究不同干燥方式对桑黄菌品质的影响，以桑黄菌子实体为原料，经5种不同干燥方式处理后，测定其基本理化成分、色值、体外抗氧化活性和挥发性成分，并采用相关性分析和主成分分析法进行综合评价，探讨不同干燥方式对桑黄子实体品质的影响。结果表明，不同干燥方式对桑黄菌品质的影响存在差异，其中总黄酮含量、总还原力和色差均差异显著。微波干燥处理的桑黄菌子实体的总多酚、总黄酮和总还原力最高；热风干燥处理的桑黄菌子实体的DPPH自由基清除率最高；冷冻干燥处理的桑黄菌子实体的总多糖含量和己醛的相对含量最高，色值最佳；相关性分析表明,总多酚、总黄酮、总还原力之间呈极显著正相关，总多糖含量、色值和挥发性物质之间呈极显著相关。主成分分析表明，冷冻干燥处理的子实体提取物综合得分最高，适用于桑黄菌的干制，为桑黄菌干制和产业化发展提供一定理论支撑。更多还原

【Abstract】 Effects of drying methods on the quality of Inonotus hispidus were studied. The fruit bodies of I. hispidus were treated by five different drying methods. The basic physicochemical components, color value,antioxidant activity and volatile components of I. hispidus were determined. Correlation analysis and principal component analysis were used to comprehensive evaluate the effects of different drying methods on fruiting body quality. The results showed that different drying methods had different effects on the quality of I.hispidus, among which the total flavonoid content, total reducing power and color difference all showed significant differences. The total polyphenols, total flavonoids and total reducing power were the highest in the fruiting bodies treated by microwave drying. The scavenging rate of DPPH free radical was the highest in the fruiting bodies treated with hot air drying. The total polysaccharide content and the relative content of hexyl alcohol were the highest and the color value was the best in the fruiting bodies treated by freeze drying.Different drying methods had significant differences in physicochemical indexes of the fruiting bodies, among which the total flavonoid content, total reducing power and color difference were significantly different.Correlation analysis showed that there was a certain correlation among the physicochemical indexes, among which the total polyphenols, total flavonoids and total reducing power showed a very significant positive correlation, and the total polysaccharide content, color value and volatile substances showed a very significant positive correlation. Principal component analysis showed that the comprehensive score of freeze-drying was the highest and was suitable for the drying of I. hispidus. This experiment provided certain theoretical support for the drying and industrial development of polyporus umbellatus.更多还原