保鲜膜确有保鲜作用 将在冰箱中放置6小时的加盖和不加盖保鲜膜的蔬菜进行比较,发现加盖保鲜膜确实起到了保护维生素C的作用:100g不盖膜西红柿,其维生素C的含量为19mg,而加盖的为22mg;冬瓜加盖保鲜膜后维生素C损失量也相应减少;保鲜膜对青椒的保鲜作用更大,每100g青椒不盖膜与盖膜的维生素C含量分别为59mg和66mg。 Plastic wrap does have a preserving effect will be placed in the refrigerator for 6 hours with and without plastic wrap vegetable comparison and found that the plastic wrap does play a protective role of vitamin C: 100g film without tomatoes, the vitamin C Of the content of 19mg, while stamped for 22mg; melon stamped with plastic wrap loss of vitamin C is also reduced accordingly; plastic wrap on green pepper greater protective effect, per 100g green pepper capsulosa membrane and cover the vitamin C content 59 mg and 66 mg.