阅读说明：本技术 山苍子提取物作为青贮玉米防霉菌添加剂的应用 (Application of litsea cubeba extract as silage corn anti-mildew additive ) 是由 张福金 张欣昕 杨永青 刘广华 张尧 栗艳芳 连海飞 于 2020-05-09 设计创作，主要内容包括：本发明公开了山苍子提取物作为青贮玉米防霉菌添加剂的应用,所述山苍子提取物是采用索氏提取法从山苍子果中得到的提取物,所述山苍子提取物直接与青贮玉米混合。本发明通过在青贮玉米中添加山苍子提取物,能有效地抑制镰刀菌属、黄曲霉属、青霉属、根霉属这4个霉菌属类的霉菌,从而有效控制青贮玉米中霉菌的发生；山苍子提取物还能显著提高青贮玉米中蛋白含量、氨基酸总量和脂肪酸总量,提高青贮玉米营养品质,具有良好的应用前景。(The invention discloses application of a litsea cubeba extract as an anti-mold additive of silage corns. According to the invention, the litsea cubeba extract is added into the silage corn, so that 4 mildew species of fusarium, aspergillus flavus, penicillium and rhizopus can be effectively inhibited, and the generation of the mildew in the silage corn can be effectively controlled; the litsea cubeba extract can also obviously improve the protein content, the total amino acid content and the total fatty acid content in the silage corn, improves the nutritional quality of the silage corn and has good application prospect.)

1. The application of the litsea cubeba extract as the mould-proof additive of silage corn is characterized in that the litsea cubeba extract is obtained from litsea cubeba by a Soxhlet extraction method.

2. The use of the litsea cubeba extract as an antimycotic additive for silage corn as claimed in claim 1, wherein the litsea cubeba extract contains citral, geraniol, linalool.

3. The use of the litsea cubeba extract as an antimycotic additive for silage corn as claimed in claim 1, wherein the extraction temperature of the litsea cubeba extract is 105 ℃.

4. The use of the litsea cubeba extract as an antimycotic additive for silage corn as claimed in claim 1, characterised in that the litsea cubeba extract is mixed directly with silage corn.

5. The use of the litsea cubeba extract as an antimycotic additive for silage corn as claimed in claim 4, wherein the volume fraction of the litsea cubeba extract in the silage corn is not less than 0.3%.

Technical Field

The invention relates to the technical field of mildew-proof additives, in particular to application of litsea cubeba extract as a silage corn mildew-proof additive.

Background

The silage corns are important forage grass products, in recent years, potential safety hazards still exist in production, processing, use and other links of the silage corns, and particularly the problem of mould is the most prominent. The harm of mold contamination has two main aspects: firstly, the nutritional value of the feed is destroyed, and the physical property and the chemical property of the feed are changed, such as discoloration, taste change and caking, so that the palatability is reduced; secondly, the toxigenic mould can produce mycotoxin and affect human health through food chain milk, eggs and meat. Mycotoxins are primarily toxic metabolites produced by molds in food products contaminated therewith. Therefore, the method can prevent and control the mildew of the silage corn, and is a main way for reducing mycotoxin pollution and harm.

At present, silage mold inhibitors in China mainly take chemical and microbial products as main materials, chemical mildewcides mainly comprise organic acids (propionic acid, sorbic acid, benzoic acid and the like), organic acid salts (calcium propionate, potassium sorbate and the like) and organic acid esters (dimethyl fumarate and p-hydroxybenzoate), the effects of the chemical agents on inhibiting molds are different, but the common problems exist in that the products are high in irritation, strong in corrosivity, bad in smell, difficult to solve in residue, unreliable in product safety performance and possibly toxic effects on animals and human bodies to a certain degree. The microbial products mainly comprise lactic acid bacteria, propionic acid bacteria and the like, which have important significance in improving the quality of silage, but in the aspect of inhibiting mould, the microbial agent has strict storage and use conditions, relatively unstable effect, higher requirement on the operation level of a user and relatively weaker applicability in production.

Disclosure of Invention

In view of the above technical problems in the related art, the present invention provides an application of litsea cubeba extract as an additive for preventing mold in silage corn, which can overcome the above disadvantages of the prior art.

In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:

the application of the litsea cubeba extract as the anti-mold additive of the silage corn is that the litsea cubeba extract is obtained from litsea cubeba by a Soxhlet extraction method.

Further, the litsea cubeba extract contains citral, geraniol and linalool.

Further, the extraction temperature of the litsea cubeba extract is 105 ℃.

Further, the litsea cubeba extract is directly mixed with the silage corn.

Further, the volume fraction of the litsea cubeba extract in the silage corn is more than or equal to 0.3%.

The litsea cubeba, also known as litsea cubeba, alpinia japonica, momordica cochinchinensis and momordica litsea are deciduous shrubs or small trees of Lauraceae and litsea, are pungent in nature, slightly bitter in taste, fragrant and nontoxic, and are one of the special spice plant resources of China. The litsea cubeba is light or slightly shade-tolerant, has shallow root property, and is usually grown in barren mountains, wastelands, shrubbery or sparse forests, forest margins and roadside. Strong germination property, and can be propagated by using seeds. Mainly distributed in the provinces of the south of the Yangtze river of China to Tibet. The flowers, leaves and pulp of the litsea cubeba can be steamed to extract litsea cubeba oil, wherein the oil in the litsea cubeba has the highest content, the oil contains about 70 percent of citral, and the litsea cubeba oil can be synthesized into high-grade spice.

The invention has the beneficial effects that:

according to the invention, the litsea cubeba extract is added into the silage corn, so that 4 mildew species of fusarium, aspergillus flavus, penicillium and rhizopus can be effectively inhibited, and the generation of the mildew in the silage corn can be effectively controlled; the litsea cubeba extract can also obviously improve the protein content, the total amino acid content and the total fatty acid content in the silage corn, improves the nutritional quality of the silage corn and has good application prospect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a graph comparing the inhibitory effect of Litsea cubeba extract on Fusarium at different concentrations according to the examples of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.