Technology on extracting natural edible coloring matter form torch pine seed pinus taeda 火炬树果实提取天然食用色素技术研究
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< uk > there was a 2 - fold difference in rate of uptake among 26 full - sid families of pinus taeda . < / uk > < uk >大炬松的26个全同胞家系中，吸收速率的差异可高达两倍。 < / uk >
