CN105104519A - Preparation method of tomato preservation film mulching agent - Google Patents

Abstract

The invention provides a preparation method of a tomato preservation film mulching agent. The method comprises the steps that 1, acrylic resin is added into 900 parts of water, the pH is adjusted to 3.0, and then 0.1-0.5 part of lactocidin and 100 parts of guaiac gum powder are mixed with the mixture for standby; 2, water is added to lignin, chitosan oligosaccharide and fulvic acid to be completely dissolved, the obtained solution is added into the mixture in the first step, enzyme digestion action is conducted at about 40 DEG C for 24 hours, then heating is conducted at 90 DEG C for about 10 minutes to make enzymes lose activity, decompress concentration is conducted, and a pure and transparent solution obtained by filtering, separating and removing impure substances is 330 parts of tomato preservation film mulching solution, wherein for the obtained tomato preservation film mulching solution, fixed components account for 20 percent, the water-soluble dietary fiber content in the fixed components of the solution is measured to be 90 percent by adopting an enzyme weight method, and the viscosity of 5% aqueous solution is 27 GPS. The preparation method of the tomato preservation film mulching agent is easy to match, convenient to use and good in effects of water retention and moisture retention.

Description

A kind of manufacture method of tomato pr eservation filming agent

Technical field:

The present invention relates to agricultural product to guarantee the quality technical field, particularly a kind of manufacture method of tomato pr eservation filming agent.

Background technology:

Under normal circumstances, veterinary antibiotics also has a maturation after harvesting, often namely produces ruckbildung at short notice, reduces local flavor, and the phenomenon that rots.Therefore, a lot of vegetables and fruit its be still not mature in plucked, accelerate the ripening at sprinkling ether or ethene, result in the problem that quality of vegetable is bad.On the other hand, after vegetables or fruits and vegetables are plucked, also need to carry out fresh-keeping operation, to keep its freshness, usually spray aqueous water or film forming liquid, in fruit and vegetable surfaces film forming, with water-holding fresh-keeping.Due to the effect of film, even if preserve for a long time, in-house moisture also can not distribute loss, so effectively can prevent variable color, rotten.Water-soluble dietary fiber used is colourless, tasteless, transparent, low-viscosity, soluble in the material of water, thus coating after the original quality of veterinary antibiotics at all unaffected.The food fiber of veterinary antibiotics is nearly all non-water-soluble dietary fiber, but because antistaling agent uses water-soluble dietary fiber, therefore can give vegetables, fruit has the function of water-soluble dietary fiber.Conventional locust bean gum etc., it is scattered in water, forms solution.But this antistaling agent is also unstable, and film forming is by ratio and temperature, and humidity restriction is more, under humidity or scorching weather, effect is bad, therefore, need to occur that a kind of proportioning is simple, easy to use, the manufacture method of a kind of tomato pr eservation filming agent of water conservation, good refreshing effect.

Summary of the invention:

For solving the defect existed in prior art, the invention provides and be intended to a kind of proportioning simply, easy to use, a kind of tomato pr eservation filming agent of water conservation, good refreshing effect.

In order to realize the object of the invention, the invention discloses a kind of manufacture method of tomato pr eservation filming agent, wherein, operating as follows:

A, in the water of 900 parts, add acrylic resin, pH is transferred to 3.0; The lactic acid of 0.1 ~ 0.5 point element and 100 points being healed, sore rubber powder is last to be mixed with this mixture again, for subsequent use;

B, lignin and chitosan oligosaccharide, fulvic acid added water to and dissolves completely, then gained solution is joined in steps A, under about 40 DEG C, carry out 24 hours enzymes turn use into; Afterwards, within about 10 minutes, enzyme deactivation is made with 90 DEG C of heating; Then reduced pressure concentration; The pure clear solution obtained after removing foreign body by isolated by filtration is 330 parts of tomato pr eservation filming agent solution,

Gained tomato pr eservation filming agent solution, wherein frozen composition accounts for 20%, the water-soluble dietary fiber amount in this solution solids composition, and the viscosity adopting ferment gravimetric method to survey to be 90%, 5% aqueous solution is 27CPS.

Advantage of the present invention is, proportioning is simple, easy to use, water conservation, good refreshing effect.Be specially: the ripe degree of the fruits and vegetables using the present invention fresh-keeping is unchanged, fragrant odour, taste is good, and weight reduces few, is only 2.8%; Water-retaining property humidity-preserving type is effective.

Detailed description of the invention:

The manufacture method of tomato pr eservation filming agent, wherein, operates as follows:

A, in the water of 900 parts, add acrylic resin, pH is transferred to 3.0; The lactic acid of 0.1 ~ 0.5 point element and 100 points being healed, sore rubber powder is last to be mixed with this mixture again, for subsequent use;

B, lignin and chitosan oligosaccharide, fulvic acid added water to and dissolves completely, then gained solution is joined in steps A, under about 40 DEG C, carry out 24 hours enzymes turn use into; Afterwards, within about 10 minutes, enzyme deactivation is made with 90 DEG C of heating; Then reduced pressure concentration; The pure clear solution obtained after removing foreign body by isolated by filtration is 330 parts of tomato pr eservation filming agent solution,

Gained tomato pr eservation filming agent solution, wherein frozen composition accounts for 20%, the water-soluble dietary fiber amount in this solution solids composition, and the viscosity adopting ferment gravimetric method to survey to be 90%, 5% aqueous solution is 27CPS.

With example, this antistaling agent is explained.% in example is outward percentage by weight apart from specified otherwise, and viscosity is 5% aqueous solution Type B viscosimeter 25 DEG C, measured value under 30rpm condition.

Result of use is tested, and by solution of the present invention, is brushed on the tomato just taken off with hairbrush, dry at normal temperatures.Undressed tomato is routine in contrast, at 25 DEG C, place under relative humidity 70% environment after 6 days, one is done to quality and compares.The tomato using antistaling agent process does not almost send out degree of raw and cooked change, fragrant odour, and taste is good, and weight reduces few, is only 2.8%; And the tomato of reference examples presents overdone state, taste is obviously deteriorated, and weight minimizing reaches 7.4%.

Claims (1)

1. a manufacture method for tomato pr eservation filming agent, is characterized in that, operates as follows:

A, in the water of 900 parts, add acrylic resin, pH is transferred to 3.0; The lactic acid of 0.1 ~ 0.5 point element and 100 points being healed, sore rubber powder is last to be mixed with this mixture again, for subsequent use;

B, lignin and chitosan oligosaccharide, fulvic acid added water to and dissolves completely, then gained solution is joined in steps A, under about 40 DEG C, carry out 24 hours enzymes turn use into; Afterwards, within about 10 minutes, enzyme deactivation is made with 90 DEG C of heating; Then reduced pressure concentration; The pure clear solution obtained after removing foreign body by isolated by filtration is 330 parts of tomato pr eservation filming agent solution,

Gained tomato pr eservation filming agent solution, wherein frozen composition accounts for 20%, the water-soluble dietary fiber amount in this solution solids composition, and the viscosity adopting ferment gravimetric method to survey to be 90%, 5% aqueous solution is 27CPS.