Abstract: Research preparation process of edible films of Loquat core starch, Yuhang County, Zhejiang Province Tangxi loquat cores as raw materials; On the single-factor test of starch, sodium alginate, glycerol and carrageenan, through the central composite experimental design and the response surface Methodology (RSM) analysis and optimization for preparation process. Glycerol and starch have a significant impact on the elongation at break, tensile strength and oil permeability of the film, carrageenan has a significant influence on elongation at break of the film , sodium alginate have a significant impact on oil permeability of the film. The optimum preparation process was determined as: starch 68 g·L-1, sodium alginate 7 g·L-1, glycerol 11.25 mL·L-1 and carrageenan 1.25 g·L-1.In this study, the preparation process can ensure the good mechanical properties of edible films of loquat core starch,and easy to scale-up. Edible starch in this experiment, membrane material selection, process conditions and the application of film studies. The results showed that: The loquat core starch as the main film, with glycerol (plasticizer) and sodium alginate and carrageenan, could be ideal edible starch film.
Key words: loquat core; starch; response surface methodology; Edible.