常見的亞硫酸鈉一般為白色、單斜晶體或粉末，對眼睛、皮膚、粘膜有刺激作用，可污染水源，受高熱分解產(chǎn)生有毒的硫化物煙氣，那你知道食品加工時使用亞硫酸鈉的注意事項具體內(nèi)容嗎？下面氫氧化鉀廠家為您解答。

The common sodium sulfite is generally white, monoclinic crystal or powder, which is irritating to eyes, skin and mucous membrane, can pollute water sources, and produces toxic sulfide smoke when decomposed by high heat. Do you know the specific contents of the precautions for using sodium sulfite in food processing? The potassium hydroxide manufacturer will answer the question for you.

在食品加工時，使用亞硫酸鈉應(yīng)注意以下幾點：

The following points should be noted when using sodium sulfite in food processing:

1）其溶液不穩(wěn)定易揮發(fā)，現(xiàn)配現(xiàn)用，以防亞硫酸鈉不穩(wěn)定而揮發(fā)。

1) Its solution is unstable and volatile, so it is ready for use to prevent sodium sulfite from volatilizing due to instability.

2）食品中存在金屬離子時，可將殘留的亞硫酸氧化；還能使還原的色素氧化變色，從而降低漂白劑的效力。

2) When metal ions exist in food, the residual sulfite can be oxidized; It can also make the reduced pigment oxidized and discolored, thereby reducing the effectiveness of bleach.

3）用亞硫酸鈉類漂白的物質(zhì)，由于二氧化硫消失而容易復(fù)色，所以通常在食品中殘留過量的二氧化硫，但殘留量不得超過標準。

3) Substances bleached with sodium sulfite are easy to recolor due to the disappearance of sulfur dioxide, so excess sulfur dioxide is usually left in food, but the residual amount shall not exceed the standard.

4）不能抑制果膠酶的活性，會有損于果膠的凝聚力。此外亞硫酸滲入水果組織后，加工時破碎水果，才能除盡二氧化硫的，所以用亞硫酸保藏的水果只適于制做果醬、干果、果酒、蜜餞等，不能作為罐頭的原料。

4) Failure to inhibit the activity of pectinase will damage the cohesion of pectin. In addition, sulfur dioxide can only be removed when sulfite infiltrates into the fruit tissue and breaks the fruit during processing. Therefore, the fruit preserved with sulfite is only suitable for making jam, dried fruit, fruit wine, preserves, etc., and cannot be used as the raw material of cans.

5）亞硫酸鈉能破壞硫胺素，故不易用于魚類食品。

5) Sodium sulfite can destroy thiamine, so it is not easy to be used in fish food.

亞硫酸鈉要儲存于陰涼、通風的庫房。遠離火種、熱源。應(yīng)與酸類等分開存放，切忌混儲。不宜久存。儲區(qū)應(yīng)備有合適的材料收容泄漏物。人員很關(guān)鍵，使用產(chǎn)品要注意，更多產(chǎn)品信息就來我們網(wǎng)站http://www.fahao168.com咨詢吧！

Sodium sulfite shall be safely stored in a cool and ventilated warehouse. Keep away from kindling and heat source. It shall be stored separately from acids, and mixed storage is strictly prohibited. It should not be kept for a long time. The storage area shall be equipped with appropriate materials to contain the leakage. Personnel safety is critical. Please pay attention to using the product. More product information can be found on our website http://www.fahao168.com Consult!