Detection of Sulfite Content in Agricultural Products Logistics Technology Research

In today’s real life, from the perspective of the logistics quality of agricultural products, there are many problems are paid attention by social people, such as mushroom. Mushroom products in China’s exports have repeatedly been reported because of containing more sulfur dioxide in recent years. Also the dried mushroom exports were notified by nine times. Mushroom in the life is one of the people’s favorite foods, so food healthy problem is to let the consumer concern it. This article explores a new method by pararosaniline hydrochloric spectrophotometry for determination of sulfur dioxide in mushroom, in the instrument detection and method research. This experiment uses the colorimetric method that is in charge of the UV spectrophotometer instrument. Finally this article puts forward the feasibility of this method. In the determination of mushrooms, laboratory reagents are used with non-toxic mercury. It reaches the national standard and it has practical feasibility.