CN-121128749-B - Method for promoting orange color conversion and sweetness

Abstract

The invention discloses a method for promoting color conversion and sweetness of citrus, and belongs to the field of physiological regulation and control of citrus cultivation. The invention provides an application of spearmint oil in the field of orange color conversion and sweetness promotion. Aiming at the problems of slow color transfer and insufficient accumulation of sugar in citrus fruits, the invention provides a method for improving citrus quality based on plant secondary metabolites. The plant source preparation containing the spearmint oil, which is designed by the invention, is applied to citrus, so that the effects of promoting color conversion and sweetening are achieved, the quality of fruits is improved, and the commodity value is improved. The invention adopts pure plant source medicinal components as medicinal components for promoting the color change and the sweetness of citrus, and can meet the production standard of green food while improving the commodity value.

Inventors

• LI XIAOGANG
• YANG XINPENG
• YAN ZHIHAO
• LIU YIPING
• ZHOU JIANXIN

Assignees

• 果无恙(湖南)生物科技有限公司

Dates

Publication Date

20260512

Application Date

20250908

Claims (4)

1. 1. An application of spearmint oil in the field of orange color conversion and sweetness promotion.
2. 2. A method for preparing a botanical preparation for promoting orange color conversion and sweetness, which is characterized by comprising the following steps: Mixing spearmint oil and raw materials for preparing wall materials in an organic solvent to obtain an oil phase containing medicinal components and a carrier; dissolving an emulsifying dispersant in water to obtain a water phase; adding the oil phase containing the drug ingredients and the carrier into the water phase, shearing to obtain microemulsion, removing the organic solvent, and then carrying out solid-liquid separation to obtain drug-loaded microcapsules; The plant source preparation comprises a core material and a wall material, wherein the core material comprises the spearmint oil; the mass ratio of the core material to the wall material is 1:5-5:1; the wall material consists of polybutylene succinate and polyhydroxybutyrate in a mass ratio of 1:4-4:1.
3. 3. A method of promoting color-changing and sweetness of citrus, characterized in that a botanical preparation produced by the production method of claim 2 is applied.
4. 4. A method as in claim 3, wherein the botanical preparation is applied during a swelling period and/or a color shifting period of the citrus tree.

Description

Method for promoting orange color conversion and sweetness Technical Field The invention relates to the field of physiological regulation of citrus cultivation, in particular to a method for promoting color conversion and sweetness of citrus. Background Citrus is one of the most important commercial crops worldwide, the first major fruit class in the world. In recent years, the planting area and yield of citrus in the world are steadily increased, and the total yield of the industry is greatly improved, but the actual profit of the citrus industry is not effectively improved due to the influence of multiple factors. The citrus industry has the problems of excessive seasonality, large market competition pressure, rising production cost, uneven fruit quality and the like, and the phenomenon of 'increasing production and efficiency and increasing yield and income' is presented. If the citrus has the problems of lower average sugar degree, uneven fruit surface color, and the like, which affect the quality, the commodity value of the citrus is seriously affected, and the market competitiveness is reduced. Therefore, how to better solve the problems of slow color transfer and insufficient sugar accumulation of citrus fruits is an important research point of the person skilled in the art. Among the determinants of citrus quality, carotenoids are the main pigments of citrus fruits at the time of ripening, and the composition and content of carotenoids are directly related to the appearance and color of the citrus fruits, and are important indexes of the quality of the citrus fruits inside and outside. The ethephon chemical ripening agent used in the traditional production plays a role in promoting the synthesis mechanism of anthocyanidin and carotenoid based on ethylene to promote the color transfer of fruits, but when the ethephon chemical ripening agent is used in production, if the concentration is too high or the use is improper, a large number of fruits are easy to drop, the fruits are too fast softened after the use, the sugar-acid ratio is low, the fresh-keeping period is shortened, the commodity value is greatly reduced, and the use effect is extremely unstable. In addition, as for the commonly used medicines such as gibberellin, cytokinin and the like, chlorophyll disappearance of fruits can be delayed, accumulation of other pigments can be inhibited, the tree hanging time of the fruits is prolonged, and the fruits are prevented from being on the market, but the duration is short, the dosage is required to be carefully controlled, and excessive use leads to continuous greenish fruits, and sugar accumulation is inhibited, flavor is lightened, and taste is affected. Although the exogenous plant growth regulator has the effect of promoting the color transfer of fruits, sugar degree accumulation and flavor improvement cannot be realized synchronously, the practical use is limited by various factors, and the phenomena of citrus fruit drop and flavor deterioration exist after the exogenous plant growth regulator is used. Chinese patent application CN116621641A discloses an amino acid calcium magnesium liquid fertilizer for promoting color conversion of tomatoes and a preparation method thereof. The invention solves the problem of low color conversion rate of tomatoes in the prior art to a certain extent by adding the compound amino acid. However, the technology has obvious limitations that firstly, high-concentration use is needed to effect, the application cost is increased, secondly, the lasting period is shorter, the effect is unstable due to the fact that the technology is easy to wash by rain, thirdly, the color transfer mechanism is single, only an ethylene signal channel can be activated, and the color transfer imbalance of tomatoes is easy to cause. Chinese patent application CN114793734B discloses a method for increasing the soluble solids content and the color of citrus fruits. When citrus fruits begin to turn color, the mixed aqueous solution of sodium silicomolybdate, soy protein polypeptide and Mg with certain mass concentration is used as synergistic mixed solution to spray the whole citrus tree. The method can effectively promote the increase of the content of soluble solids and the increase of the coloring degree of citrus fruits, but has the problems of poor stability, high cost and the like. Chinese patent application CN105859444A discloses a method for preparing coloring sugar-increasing fertilizer containing polypeptide amino acid, glycosidase and compound phosphorus potassium. The problems of crop nutrition absorption, coloring, sugar increasing and the like are effectively solved by preparing polypeptide amino acid with specific mass concentration, glycosidase and compound phosphorus potassium, so that the fruit quality is improved. However, the technology has obvious limitations that firstly, the stability of the polypeptide is poor, the polypeptide is easy to inactivate in the envir