(a) The department shall sell, to the best advantage, all surplus products of the Central State Hospital or other institutions under the control and supervision of the department and shall apply the proceeds thereof to the maintenance of the institution from which such surplus products are received. Should any surplus funds arise from this source, they shall be paid into the state treasury annually; and the department shall, at the end of each quarter, make a detailed report of all such transactions to the Governor.

(b) It is not the intention of this Code section to encourage competition in any way by the state, its institutions, agencies, departments or branches, or other subdivisions with the individual, private farmers of this state, or others, in the production and sale of agricultural or industrial commodities or products in due course of commerce.