CN101073338A - Long-distance red-dates antistaling technology - Google Patents

Abstract

The invention is concerned with jujube long time fresh keeping technology to solve the rot, big wastage of nutritional components, such as vitamin C and short shelf life to jujube during the machining, store and sell processes. Braise the fresh jujube to kill pathogenic bacterium and active enzyme of jujube to avoid the waste of biology factors to jujube nutrient. Put jujube into compound polymer film bag to seal up for keeping and it avoids the oxygenation of oxygen to nutritional components, such as VC in jujube and restrain the harm of pathogenic bacterium to jujube. Mix jujube with some purifies water and put into the frost state at 0 degree to restrain the movement of pathogenic bacterium. This method can keep the 100 percent of nutritional components to jujube and the store time and shelf life can be over anniversary to afford fully nutritional jujube for years to consumers.

Description

Long-distance red-dates antistaling technology

The bright jujube of technical background is not at room temperature taked any fresh-keeping measure, promptly loses commodity value in 2～5 days; The bright jujube freshness date of preserving in freezer can reach 90～100 days; The storage of fresh jujube technology (200410037853.9) of my invention but still can not satisfy the demand of market to bright jujube though realized that the bright jujube anniversary is fresh-keeping.Can contain hundreds of milligrams by the every hectogram of bright jujube with the vitamin C of conventional approach dry-making red date and reduce to 10～12 milligrams.The red date technique for preparing dry of my invention, though avoided a large amount of losses of nutriments such as vitamin C in the red date, but still can't satisfy the requirement of production and consumption person to red date.The winter jujube quick-frozen long-period freshness preserving technology of the Deng Ximin (patent No.: 98102227.8), after its fresh-keeping bright jujube breaks away from freezing storage environment, still can't break away from the time limit of " bright jujube shelf life 2～5 days ", so fail application on market always.Press for a kind of being convenient to red date processing in the current production, the Long-term Storage that can straddle over year is convenient to whole world transportation, can guarantee bright jujube nutritional labeling 100% technology that does not run off before consumption.This patent is to solve the not smooth key technology of red date circulation, and it has filled up domestic and international red date is the technological gap of unit long-period freshness preserving with the year.

The high-quality cleaning up red dates that summary of the invention will newly be plucked, cook, in the composite plastic film bag of packing into, add appropriate amount of purified water, after the vacuum packing machine encapsulation, place environment cold storage below 0 ℃.Bright jujube has been avoided the consumption of jujube fruit self respiration to nutrient through cooking process, has played the effect of killing pathogen again.Jujube fruit and pure water can become frozen state in environment below 0 ℃, can further suppress the harm of pathogen to pulp; With the composite plastic film bag to jujube if really sky is sealed up for safekeeping, can not only play the effect that further inhibition pathogen really endangers jujube, and can avoid oxygen to make nutriment generation oxidations such as vitamin C in the jujube fruit.Go through more than the anniversary with the red date of present technique storage and to preserve, can 100% keep the nutritional labeling of bright jujube, and environmental protection, pollution-free.Present technique has solved the difficult problem of other bright jujube preservation technique shelf lifes short (3～5 days), for long-time long distance marketing red date provides technical guarantee.The birth of present technique has avoided red date in fresh-keeping, drying, storage, nutrition leak takes place, the generation of the denaturalization phenomenon that goes rotten.In addition, present technique is applicable to eats the marketing of jujube kind raw, also is applicable to the marketing of xerophagia jujube kind, can the great facilitation of generation to the storing consumption of red date.Especially has important function to removing " eating the great crises that the jujube industry faces raw ".

The specific embodiment at first cleans up complete red bright jujube.Earlier with the clear water flushing, further clean impurity such as residues of pesticides on the jujube fruit with edible alcohol again.Secondly, jujube is really cooked.The 3rd, the red date that cooks is packed in the composite plastic film bag, add pure water red date is flooded in the water.The 4th, seal it up for safekeeping with vacuum packing machine.The 5th, the red date of sealing up for safekeeping placed environment stores and transports below 0 ℃.The mode of this patent product available cold chain transportation in season more than 0 ℃ is marketed; In the season below 0 ℃, long-distance traffic preferably.Certainly, do not add pure water, preserve under the room temperature, only also can make the red date fresh-keeping several months long, but too late red date fresh-keeping effect under freezing state is better, freshness date is longer with this patent part technology.Just because of this, if red date in processing, storage and process of consumption, the cold chain phenomenon of rupture takes place over a period to come, still there is not the sorrow that rots.

Adopt the art of this patent marketing red date, can prolong red date picking time, make the jujube farming can really accomplish " Every grain should be sent to the granary ".Red date processing, storage sale enterprise again need not be worried for the good jujube rate problem that occurs in the marketing process, because of the good jujube rate of this patent product is 100% forever, do not have worm-eaten, mildew and rot sorrow at all.The consumer buys in the dealing refrigerator one back home puts, and can enjoy the highest food of micronutrient cellulose content---red date in the world throughout the year everyday.

Claims (1)

1, a kind of preservation method of red date is characterized in that: after the high-quality red date of being plucked is cooked, in the composite plastic film bag of packing into, add appropriate amount of purified water, after the vacuum seal, place environment below 0 ℃ to preserve.