牛樟芝為食用藥菇中的一種，食用藥菇最吸引人的地方在其抗癌、抗腫瘤的效果，而牛樟芝所含有的特殊三萜類及胞外多醣，為其它植物所沒有，其最主要的功能為:抑制組織胺釋放、防止過敏、促進肝功能、促進血小板凝集、以及降血脂，防止中老年人發生心血管疾病，因此具有相當潛力被開發為未來醫療用藥品，或做為國人近年來最熱門的保健食品。 為了研究有效增加牛樟芝菌之三萜類及胞外多醣的產量，並提升生產效率，本研究將探討光照對液態發酵的影響其結果如下： (1)對菌體而言，紅光和藍光皆有助牛樟芝的生長，而言紅光400 lux下，單位基質對菌重的轉化更可達到0.854 g/g。 (2)對胞外多醣而言，藍光有助於牛樟芝生產胞外多醣，在藍光400 lux下，單位基質對產物的轉化率達到轉化率0.033 g/g，較避光組提升了27%。但因發酵時間較避光來得久，所以產率與避光大致相同。對胞外多醣的分子量而言，經由紅光照射後平均分子量由避光的868 kDa略為降低至約779 kDa，而藍光則造成分子量上升至1400 kDa。 (3)對胞內三萜類的產生，則隨紅光照度增加而增加有正面的幫助，藍光的照射對三萜類產量並沒有造成影響。 In order to study effectively increase the triterpenoids of Antrodia fungi type and amount of extracellular polysaccharide production and increase production efficiency, this study will explore the influence of light on liquid fermentation results were as follows: (1) of the cell, the red and blue light are conducive to the growth of Antrodia cinnamomea, in terms of red light 400 lux,Yx/s can reach 0.854 g / g. (2) of the extracellular polysaccharide, the Blue light will help the production of extracellular polysaccharide of Antrodia cinnamomea in the blue light 400 lux, Yp/s is 0.033 g / g, than the dark group to enhance 27%. But the fermentation time is more than the dark, so roughly the same yield and dark. On the molecular weight of exopolysaccharide, the irradiation by red light from the dark of the 868 kDa molecular weight decreased slightly to about 779 kDa, while the Blue light is the molecular weight up to 1400 kDa. (3) intracellular production of triterpenoids, the red light illumination increases with positive assistance, Blu-ray irradiation on the triterpenoids, and no impact on production.
