Acting as “the seventh nutrient”, dietary fiber owns excellent biological function and activity, among which SDF shows better performance than IDF. However, the content of SDF in most plant DF is low, which limites the development and application of functional DF products. Therefore, it is imperative to modify DF to increase the SDF content for improving of the physicochemical application properties of DF. Based on the relationship between DF types and its functionality, the necessity of DF modification is clarified first in this paper. By comparing different methods of modifying DF, the feasibility of modifying DF by fermentation technology is confirmed. And then application of fermentation technology in DF modification is introduced in particular from several aspects, i.e. the advantages, modification mechanism, influencing factors of modification of DF by fermentation technology, as well as the applied range of modified DF. Lastly, the development trend of DF modification by fermentation technology is prospected, providing some theoretical references for the future modification and application research of DF.

为探究淫羊藿药渣栽培平菇生长情况和改善贵州淫羊藿废弃药渣资源的再利用问题,采用重点实验室培养的平菇菌株,将不同比例的淫羊藿药渣添加到栽培料中,并与玉米杆栽培料进行对比,比较各处理条件下平菇菌丝性状、发育性状和产量性状等差异.结果表明:以淫羊藿药渣为主基质,配方为淫羊霍54％ 、玉米面3％ 、普钙10％ 、石灰3％ 、玉米芯15％ 、麸皮15％ 的T3处理栽培平菇其产量指标表现较好,生物学转化率较高.

对于作物叶面吸收而言,环境因素复杂多变.不同的喷施时间,温度、湿度、光照、土壤养分条件等环境条件有很大差异,将对叶面养分吸收产生不同的影响.一方面,环境条件可以影响作物生长,改变叶片蜡质层与角质层的组成结构,从而影响养分叶面吸收;另一方面,各种环境条件影响喷施液在叶表的浸润时间以致影响养分叶面吸收效果.