Preparation and producing method for promoting the Nanguo pear coloring

Abstract

The invention relates to an agent for promoting fruit coloration of Nanguo pear. The agent is aqueous and dedicated for Nanguo pear, and can increase the 'red fruit' rate by regulating and controlling the synthesis and metabolism of anthocyanidin in Nanguo pear. The agent contains the following components: uniconazole 0.1g / L, sucrose 1g / L, potassium sulfate 1g / L, calcium chloride 3g / L, levulinic acid 0.1g / L, glutamic acid 1.0g / L, tyrosine 0.3g / L, phenylalanine 0.3g / L, boric acid 0.3g / L, Tween 100 1ml / L, and water in balance. The agent is prepared by the following steps: (1) respectively weighting uniconazole, sucrose, potassium sulfate, calcium chloride, levulinic acid, glutamic acid, tyrosine, phenylalanine, boric acid and Tween 100 at the given ratio; (2) respectively dissolving the materials in water, wherein uniconazole is dissolved with methanol; glutamic acid, tyrosine and phenylalanine are dissolves with distilled water at 100 DEG C; and potassium sulfate and calcium chloride are dissolved with distilled water at 50-70 DEG C; mixing after dilution; adding water until the desired concentration; and stirring thoroughly to obtain the final product. The agent can increase the 'red fruit' rate of Nanguo pear by 14%, and is convenient to use and harmless and innoxious to human body and environment.

Description

Nanguoli fruit coloring agent and its preparation method 1. Technical field The invention relates to a preparation for improving the fruit coloring of Nanguo pear and its preparation method, which is specially used for promoting the coloring of the fruit of Nanguo pear. 2. Background technology Nanguo pear is a special pear fruit in Liaoning Province. Its fruit is bright in color, delicate in flesh, refreshing and juicy, and has a strong flavor and is well-known at home and abroad. Its promotion project of "industrial development of high-quality Nanguo pear and high-yield and high-efficiency cultivation model of Nanguo pear" has been included in the 2004 National Spark Plan. The cultivation area of ​​Nanguo pear in Liaoning Province is 800,000 mu, with an annual output of 300,000 tons, an annual output value of more than 150 million yuan, and an annual export revenue of 30 million yuan. However, there are few high-quality Nanguo pears, especially the red fruit rate is lo...

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Problems solved by technology

The purpose of the preparation is to solve the problem of Nanguo pear coloring at maturity, unstable coloring before harvesting, and 100% discoloration of Nanguo pears caused by rain before harvesting, resulting in a sharp decline in the nutritional value and economic value of Nanguo pears. The substances used are pollution-free and non-toxic It remains in the environment, and can significantly promote the synthesis of anthocyanins, significantly increase the rate of red fruit, and significantly improve the effect of fading after rain in the ripening stage and then recoloring. Its effect is more efficient and safer than the existing technology

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