Influence of different packaging materials on storage property of sunflower seed under normal temperature

In order to study the influence of packaging materials on storage sunflower seed at normal temperature, the effect of commonly- used 4 types of packaging materials on sunflower seed 's color, odor, moisture content, germination rate, relative conductivity and catalase activity was investigated.The results showed that the packaging materials had notable influences on sunflower seed 's storage quality index. The change rate of sunflower'color and odor in plastic bags and Kraft paper sacks was faster than that in woven bag and sack.The range of moisture content variation of sunflower in plastic bags and Kraft paper sacks was smaller than that in woven bag and sack.The germination rate of sunflower in plastic bags and Kraft paper sacks was lower than that in woven bag and sack.The relative conductivity of sunflower in plastic bags and Kraft paper sacks was higher than that in woven bag and sack.The catalase activity of sunflower in 4 types of packaging materials was decreased. In a conclusion, the change of sunflower seed quality was a dynamic and complex process, which required to comprehensively considering the sunflower seed's physiological characteristics and storage environment before choosing a proper packaging material.The research can provide a reference for sunflower seed storage at normal temperature.