Effect of Drying Process on the Resveratrol and Piceid Content of Mulberry (Morus atropurpurea) Fruits
Date Issued
2009
Date
2009
Author(s)
Leu, Shao-Yi
Abstract
Resveratrol(Resveratrol,trans-3,4'',5-trihydroxystilebene), for the natural plant stilbene type (stilbene) secondary metabolites, mainly due to fungal diseases of plants or the response to infection or stress derived. Plant tissue in normal conditions only a very small amount of resveratrol synthesis, the synthesis of a large-scale needs external factors to induce the oppressed by biological and physical, such as pathogen inoculation, or minor adversity, including drying, short-wave violet light (UV-C) irradiated. Products will be set up due to sunlight or drying directly affected by differences in the method of formation of resveratrol content. The purpose of this study to explore a different light irradiation of mulberry fruit processing, analysis of resveratrol generated content, and take advantage of the sun and hot air drying of mulberry fruit dehydration to deal with, to explore the fruits of mulberry dehydration process Veratryl resveratrol and white changes in the content of glycosides. The results showed that the use of mulberry fruit dry air source heat exposure can significantly enhance the effect of resveratrol content in stem (Blue light+hot air drying 2day: 8.86±0.17mg/g). Mulberry fruit will dry storage tests carried out seven weeks after the resveratrol found still maintain a certain content (1.49±0.04mg/g), dry fruit Mulberry free radical scavenging ability decreased with the storage time in the first 3 weeks after slow rate of decline (from 2.2 to 37.53%).
Subjects
Mulberry
ResveratrolPiceid
Drying
Type
thesis
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