Method for preparing purple bamboo salt

Abstract

The invention provides a preparation method of purple bamboo salt. The preparation method comprises the following steps: 1, adding 4-7% of sodium tartrate, 2-6% of Tween 80, 0.5-1% of natural mentholand 20-30% of tea water into ethanol to form a mixed solution; 2, cutting moso bamboos into moso bamboo sections, pouring the mixed solution into the moso bamboo sections, and blocking two ends of each moso bamboo section to carry out repeated oscillation for more than 1 hour; 3, putting a saturated aqueous solution prepared from sea salt into the bamboo sections treated in the above steps, sealing them with yellow mud, firing them, and naturally cooling them, wherein the heating temperature is 1000-1400 DEG C and is kept for 4-9 hours; 4, putting a white solid salt column obtained after firing into new moso bamboo sections, and firing them again by the method in the step 3; 5, repeating the step 4 for 7-9 times, carrying out cooling to obtain the purple bamboo salt. The purple bamboo saltprepared by the preparation method is rich in nutrition and trace element content, does not contain any harmful heavy metal ingredient, is environmentally friendly, and is worthy of wide popularization and application.

Description

technical field [0001] The invention relates to the field of processing purple bamboo salt, in particular to a preparation method of purple bamboo salt. Background technique [0002] Bamboo salt is a treasure house of pure natural trace elements, containing a large amount of rich minerals and trace elements sodium, calcium, silicon, potassium, magnesium, copper, iron, zinc, selenium and so on. Bamboo salt is divided into first-roasted, third-roasted, and nine-roasted according to grades. The quality of the nine-roasted bamboo salt is the best, and the top bamboo salt among the nine-roasted bamboo salt is "Purple Bamboo Salt". [0003] The production process of bamboo salt has a history of more than 1300 years. Bamboo salt was originally a folk remedy created by monks in the temple, and then spread to the people. The way of preparing bamboo salt is very unique and elegant. It is required to put natural sea salt rich in minerals into a bamboo tube with a diameter of 7 cm th...

AI Technical Summary

Problems solved by technology

[0004] Because sea salt is generally used as raw material in the process of preparing purple bamboo salt, but sea salt contains not only a large amount of mineral elements, but also a certain amount of heavy metal elements, if only relying on traditional firing methods cannot completely remove the contained heavy metals Elements, in the prior art, there is a method of using electrolysis to remove heavy metal elements contained in salt, but this method itself requires ultra-high electrolysis temperature and ultra-high voltage, the safety factor is relatively low, and the operation process is relatively complicated , does not meet the requirements of low-energy, low-carbon and environmental protection

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