Vacuum freeze-dried golden-silk jujube pure powder
A technology of vacuum freeze-drying and golden jujube, applied in the field of food processing, can solve the problems such as the inability to obtain pure powder, the inability to make powder, the color and aroma, the content of golden jujube being unable to meet the needs of consumers for pure jujube powder, etc.
Active Publication Date: 2010-12-15
山东鼎力枣业食品集团有限公司
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Problems solved by technology
[0002] Due to the high sugar content of golden jujube, the sugar content of pure dry powder (moisture less than 5%) is about 90%, and ordinary drying methods cannot obtain pure powder. As long as the drying temperature is higher than 50°C, the powder will stick to the wall, Sticky, agglomerated and not powdery
[0003] At present, the pure powder of golden jujube is mostly made of golden jujube rehydrated, beaten, peeled and cored, and then added with a certain proportion of carriers (mostly starch, maltodextrin, etc.), the amount is about 25-35%, and then spray-dried Or drum drying to obtain the pure powder of golden jujube with a moisture content below 5%, because a large amount of carrier is added, the product obtained by this method cannot satisfy consumers from the content of color, fragrance and golden jujube Demand for Pure Date Powder
Method used
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Experimental program
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Effect test
Embodiment Construction
[0018] Below in conjunction with embodiment the present invention is described in more detail.
[0019] The technical process of the present invention to produce the pure powder of golden shredded jujube comprises:
[0020] Golden silk jujube→water flow conveying→lifting→jujube picking→drum cleaning→drug solution immersion cleaning→bubble cleaning→lifting→storage→screw conveying→rehydration→pitting→pulping→fine beating→homogenizing→ultra-high temperature instant sterilization →Aseptic filling.
[0021] Among them: Jinsixiaozao is selected, removed rotten dates and impurities, then cleaned, disinfected by removing pesticide residues (100ppm chlorine dioxide), rinsed with pure water, and put into the rehydration tank, according to the ratio of Jinsixiaozao: pure water 1: 3.5 Rehydrate at 60°C for 2 hours, remove the small golden jujube pits (screen diameter 0.8mm) through a pitting machine, homogenize under a pressure of 30mpa, and sterilize instantaneously at 135°C for 15s, an...
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The invention discloses vacuum freeze-dried golden-silk jujube pure powder, which is manufactured by the following processes of: performing low-temperature moisturizing, namely moisturizing golden-silk jujube for 2 hours at the temperature of 60 DEG C by adding purified water in an amount which is 3.5 times the volume of the golden-silk jujube; removing golden-silk jujube pits by using a pitter with a screen mesh diameter of 0.8 millimeter, and homogenizing the golden-silk jujube under the pressure of 30MPa; performing instantaneous sterilization for 15 seconds at the temperature of 135 DEG C, and then storing the jujube pulp into a sterile tank; filling the jujube pulp into a thousand-level purification room; feeding the jujube pulp to a quick freezing room to perform quick freezing at the temperature of 40 DEG C below zero; freeze-drying the quick-frozen jujube pulp in a vacuum freeze-drying room; crushing the freeze-dried jujube powder at the temperature of 18 DEG C under the humidity of 10 percent in a thousand-level purification state by using airflow; screening the freeze-dried jujube powder with 80 to 100 meshes; and packing the freeze-dried jujube powder to obtain a product. The golden-silk jujube pure powder is produced by using a unique process, and the process can produce the golden-silk jujube pure powder of which color, fragrance and golden-silk jujube content can meet the requirement.
Description
technical field [0001] The invention relates to food processing technology, in particular to the deep processing technology of jujube. Background technique [0002] Due to the high sugar content of golden jujube, the sugar content of pure dry powder (moisture less than 5%) is about 90%, and ordinary drying methods cannot obtain pure powder. As long as the drying temperature is higher than 50°C, the powder will stick to the wall, Sticky, agglomerated and not powdery. [0003] At present, the pure powder of golden jujube is mostly made of golden jujube rehydrated, beaten, peeled and cored, and then added with a certain proportion of carriers (mostly starch, maltodextrin, etc.), the amount is about 25-35%, and then spray-dried Or drum drying to obtain the pure powder of golden jujube with a moisture content below 5%, because a large amount of carrier is added, the product obtained by this method cannot satisfy consumers from the content of color, fragrance and golden jujube D...
Claims
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Inventor 刘玉林孙曙光王中山
Owner 山东鼎力枣业食品集团有限公司