Maize bamboo shoot juice processing

The corn shoots are the young ear before the corn silking and pollination, and they are fine and thick and shaped like bamboo shoots. Its rich nutrition, crisp and delicious, unique flavor, is a high-grade vegetable. The bamboo shoot juice is one of the products processed from the raw material of canned bamboo shoots. The processing points are described below.
First, the process flow: raw materials → cleaning → precooking → cooling → crushing → juice extraction → clarification → deployment → canning → sterilization → cooling.
Second, the processing points
1, raw material cleaning. Use pick-ups of substandard corn shoots that do not exceed 24 hours. Remove impurities and inedible parts. Rinse dirt with flowing water to remove the surface of flowers.
2, precooked. According to the ratio of 1:2, add 0.10-0.15% citric acid aqueous solution, precooked in the sandwich pot, open the pot after the water is opened, and keep at the temperature of 95-100 °C for 5 minutes.
3, cooling, broken. The pre-cooked raw materials are fully cooled with flowing water and require drinking water of a hygienic standard. The cooled corn shoots are crushed by a crusher and are required to have a certain particle size.
4, juice. Broken corn shoots, using a juicer or artificial juice, require a juice extraction rate of 60% or more.
5. Clarify. Before clarification, 80 mesh sieves are used. Honey chilling clarification method is used. The amount of honey is 1% of the amount of juice. It is frozen at −4° C. for 4 hours, and it is naturally left to clarify after thawing.
6, deployment. The thickener xanthan gum is adjusted to a thin paste, added to a prepared sugar liquid with a concentration of 64%, then honey and sweetener are added according to the ratio, 80 mesh sieve is passed, and then the clarified raw juice is added according to the ratio and Other ingredients make the finished product pH 3.70-4.30.
7, canning, sealing, sterilization. With good sap and fashion tanks, the quantity of cans must be quantified and the temperature should be controlled above 50°C. Immediately after canning, sealers are sealed with a can-sealing machine and promptly sent to a retort for sterilization. The sterilization formula is 10-30 10/100°C.
Third, product quality requirements
1, sensory indicators. The product has the milky yellow color that the bamboo shoots should have. It is transparent and has the unique fragrance of the corn. It has a harmonious and sweet taste, sweet and sour taste, and no odor. It is allowed to have a slight turbidity and no impurities.
2, physical and chemical indicators. Total sugar content ≥ 8 g/100 ml, soluble solids content ≥ 10 g/100 ml, Cu ≤ 5 mg/kg, As ≤ 0.50 mg/kg, Pb ≤ 1 mg/kg.
3, microbiological indicators. The total number of bacteria is less than or equal to 100 cells/ml, and the content of E. coli is ≤6 cells/100 ml. No pathogenic bacteria can be detected.

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