近红外光源对光合细菌生长的影响  

Influence of near-infrared on growth of photosynthetic bacteria

作　　者：李家洲[1] 张冬青[1] 黄荣林[1] 赵鑫[1] 肖玉平[1] 

机构地区：[1]广东轻工职业技术学院食品与生物工程系,广东广州510300

出　　处：《中国酿造》2012年第5期114-117,共4页China Brewing

摘　　要：光合细菌的光合色素能吸收近红外光进行光合作用。利用加可见光滤光镜的卤钨灯作为近红外光源,照射光合细菌,探讨其对光合细菌生长的影响。结果表明,相对于可见光,近红外光对光合细菌的生长有明显促进作用,可使最大菌体浓度提高45%以上。近红外光照强度饱和区为20W^35W之间,低于20W时,光合细菌的生长速率随光照强度升高而升高;超过50W后,近红外光对光合细菌产生抑制作用。温度和pH值2个培养参数对近红外光的光照效果没有明显的影响。The photosynthetic pigments can absorb near-infrared lights for photosynthesis.Halogen tungsten lamp filtered with visible-light filter lens as light source,influence of photosynthetic bacteria growth was researched.The results were as follows： compared with visible-light,near-infrared lights can promote photosynthetic bacteria growth markedly and can increase the max cell concentration about 45%;the region of near-infrared light saturation was between 20W to 35W;when lower than 20W,growth rate of photosynthetic bacteria increased with light intensity increasing;when higher than 50W,near-infrared light could inhibit photosynthetic bacteria growth.The temperature and pH value had no influence on the near-infrared light effect.

关 键 词：光合细菌 近红外光 生长 

分 类 号：Q935[生物学—微生物学]