Plant Regeneration from Allotriploid (O.sativa×O.minuta) Hybrid Protoplast Studies on Protoplast Culture of Upland Rice and Plant Regeneration Transformation of rare ginsenoside Compound K from ginsenoside Rb1 catalyzed by snailase immobilization onto microspheres Preparation and characterization of sustained release microcapsules of grape polyphenols with porous cornstarch, alginate sodium, and chitosan Biochemical process engineerinmg and modernization of Chinese materia medica (Ⅰ) Immobilization of microbial fertilizer in small spherical particles by embedding