Composite antistaling agent for storing wild rice stem and method of preparing the same

Abstract

A compound antistaling agent for preserving the zizania aquatica is provided with the formula components by mass percent as follows: nanon calcium carbonate 0.05%-0.15 %, sodium stearate 0.01%-0.03%, sodium carboxymethylcellulose 1%-2%, sodium D-isoascorbate 0.5%-1.5% and water for the rest. The method for preparing the compound antistaling agent measuring in every 10 liters includes the steps: adding 5-15g nanon calcium carbonate to the water at the temperature of 70-90 DEG C, stirring evenly and insulating, adding 1-3g sodium stearate, producing one liter, insulating for 30-60 min in water bath and modifying; heating and dissolving 100-200g sodium carboxymethylcellulose in the water, cooling, adding 50-150g sodium D-isoascorbate, producing 9 liters; evenly mixing the two solutions and obtaining the compound antistaling agent for preserving the zizania aquatica. The method includes soaking the shelled zizania aquatica in the compound antistaling agent for 3-5 min, dragging out of the antistaling agent, drying and preserving. The method can effectively prevent the zizania aquatica from browning and losing water, maintain the eating quality and the commodity value and extend the storage period.

Description

technical field

[0001] The invention belongs to the technical field of applied chemistry and relates to a fresh-keeping technology for agricultural products, in particular to a composite preservative for storing dehulled wild rice stems and a preparation method thereof. Background technique

[0002] Zizania is a special aquatic vegetable in my country, which is loved by people for its crisp and tender texture, delicious taste and rich nutrition. In particular, its rich dietary fiber has a significant preventive effect on modern civilization diseases such as obesity and hyperlipidemia. At present, Zizania is mainly sold in the form of shells, because Zizania husks account for about 30% of the weight of Zizania, and cleaning and shelling are quite cumbersome, which affects urban sanitation. Compared with wild rice stems without shells, shelled wild rice stems are favored by consumers for their convenience, cleanliness and high edible rate. We refer to this kind of fresh frui...