Lotus seed and lily dew beverage and preparation method thereof

Abstract

The invention relates to a lotus seed and lily dew beverage and a preparation method thereof. The preparation method comprises the following steps: by virtue of reasonable raw material treatment and a scientific process flow, taking 40g / L of lotus seeds, 20g / L of coix seeds and 10g / L of lily as base materials, and matching sweetening agents such as erythritol and antioxidants. The innovative process comprises the following steps: pretreating the raw materials, extracting for 60-90 minutes at the temperature of 80-90 DEG C, performing rough filtration, fine filtration and 0.18 mu m fine filtration, preserving heat for 30 minutes at the temperature of 98-100 DEG C, performing instantaneous sterilization at the temperature of 125 DEG C, and performing sterile filling. Wherein the vitamin C and the D-sodium erythorbate are added to inhibit oxidation, and the purity is guaranteed through multi-stage filtration. Stability tests prove that after 3 months of accelerated preservation at 37 DEG C, sensory and physicochemical indexes meet the GB / T31326-2014 standard, and the product has the health-care effects of nourishing yin, moistening lung, soothing nerves and the like, and is scientific in process and high in product stability. The nutritional ingredients of the lotus seeds, the lilies and the coix seeds are reserved to the maximum extent, and meanwhile the taste and quality of the beverage are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of food and beverages, and particularly to a lotus seed and lily dew drink with health care functions and a preparation method thereof. Through scientific proportioning and process treatment, this drink has functions such as nourishing yin and moistening the lungs, clearing the heart and calming the mind, improving sleep, and enhancing immunity. At the same time, it has a fresh and pleasant taste and high nutritional value. Background Art

[0002] Lotus seeds and lilies have been precious ingredients that can be used both as traditional Chinese medicine and food since ancient times. "Shennong Ben Cao Jing" records that lotus seeds have the effects of "tonifying the middle, nourishing the spirit, and strengthening qi and strength". "Compendium of Materia Medica" even highly appraises the effect of lotus seeds in clearing the heart and calming the mind. Lily is also listed as a good medicine for nourishing yin and moistening the lungs, and calming the nerves in "Compendium of Materia Medica". Historically, lotus seeds and lilies have often been used in court diet therapy to help the royal family members regulate their bodies and minds and maintain health.

[0003] Job's tears (i.e., Coix lacryma-jobi L.) is also widely used in traditional Chinese medicine. It is recorded in "Compendium of Materia Medica" that it has the effects of "promoting diuresis to alleviate edema and strengthening the spleen to stop diarrhea". Modern research shows that Job's tears are rich in various nutrients such as protein, dietary fiber, and vitamin B group, which can effectively regulate the body's water metabolism, enhance immune function, improve the digestive and absorption function of the spleen and stomach, and have a certain anti-inflammatory effect. Its addition can further enhance the health care effect of the drink and play a positive role in maintaining the body's water balance and promoting metabolism. However, in modern society, these traditional applications of lotus seeds, lilies, and Job's tears are often ignored, and there is a lack of products that combine scientific proportioning and modern technology in the market, which cannot effectively retain their nutritional components. The present invention provides a lotus seed and lily dew drink, which combines modern scientific and technological means to maximize the retention of the traditional effects of lotus seeds, lilies, and Job's tears, and improves the taste and quality to meet the needs of modern consumers. Summary of the Invention

[0004] The present invention provides a lotus seed and lily dew drink with a scientific and reasonable formula and strict control of the preparation process steps, ensuring that the active ingredients of raw materials such as lotus seeds and lilies are retained to the greatest extent. This drink not only has the health care effects of traditional Chinese medicine but also improves the taste and quality of the product through modern technology. Formula: Lotus seeds: 40 g / L Job's tears: 20 g / L Erythritol: 25 g / L Lilies: 10 g / L Vitamin C: 0.8 g / L D-sodium erythorbate: 0.6 g / L Sucralose: 0.02 g / L Stevioside: 0.01 g / L Preparation process flow:

[0005] Raw material preparation: (1) Lotus seed treatment: Wash the lotus seeds, remove impurities, and then soak them moderately to make them soft. After soaking, remove the cores of the lotus seeds to reduce bitterness and improve the taste. Lily treatment: Wash the lilies, remove the soil and impurities on the surface, and retain their nutritional components. Job's tears treatment: Wash the Job's tears, remove impurities, and then soak them to ensure sufficient swelling and uniform cooking in subsequent processing. (2) Heating extraction: Mix the treated lotus seeds, lilies, and Job's tears according to the formula ratio, add an appropriate amount of water, and carry out heating extraction at a temperature of 80°C - 90°C for 60 - 90 minutes. During the extraction process, add vitamin C and D-sodium erythorbate to prevent component oxidation and maintain the color and nutritional components of the drink. (3) Gradual filtration: The extract is filtered through coarse filtration and fine filtration to gradually remove large particles and impurities, ensuring the purity of the liquid. The filtered extract should reach the required clarity. (4) Blending: Add erythritol, sucralose, and steviol glycoside to the filtered extract for blending to adjust the sweetness and flavor of the drink. During blending, stir well to ensure uniform distribution of each component. (5) Fine filtration (0.18μm): The blended drink is filtered again through fine filtration, using a filter membrane with a pore size of 0.18μm to remove microorganisms and other fine particles, ensuring the safety and quality of the drink. (6) Heat preservation (98 - 100°C, 30 minutes): Keep the filtered liquid at a temperature of 98°C - 100°C for 30 minutes to maintain the uniformity of the drink and improve its stability. (7) Sterilization (125°C, 30 seconds): Ensure the sterility of the drink through instantaneous high-temperature sterilization at 125°C, prevent bacterial growth, and extend the shelf life of the product. (8) Aseptic filling: Fill the processed lotus seed and lily dew under aseptic conditions, using aseptic filling technology to prevent secondary contamination and ensure the final quality of the product. Description of the drawings Figure 1 is the process flow chart of the preparation process. Specific implementation mode

[0006] The embodiments of the present invention include a production method of lotus seed and lily dew beverage. First, raw materials such as lotus seeds, coix seeds, and lilies are weighed according to the proportions in the formula table. After being processed and pre-processed respectively, they are heated for extraction and filtered step by step. Subsequently, erythritol, sucralose, and steviol glycoside are added for blending. After fine filtration, it is kept warm and sterilized, and finally filled under aseptic conditions to form the final product. Stability test

[0007] To ensure the stability of the product during actual storage and transportation, the present invention conducted a stability test on the lily and lotus seed dew by accelerating the preservation at 37°C for 3 months, and examined the changes in the sensory, physical and chemical, and microbial indicators of the pilot-scale samples. In the experiment, the samples stored under refrigeration at 4°C and accelerated conditions at 37°C were compared. The test results showed that under the accelerated conditions, the color of the lily and lotus seed beverage deepened, especially for the original flavor lily and lotus seed beverage, due to the relatively low addition amounts of vitamin C and D-isoascorbic acid sodium, the color deepened more significantly. However, despite the color change, all the sensory and physical and chemical indicators were still within the acceptable range. Test results

[0008] According to the requirements of the GB / T31326-2014 "Plant Beverage" standard, all the indicators of the lily, lotus seed, and coix seed beverage after accelerating the preservation at 37°C for 3 months meet the standard requirements. This indicates that the quality of the lotus seed and lily dew beverage of the present invention still meets the national standards after accelerated aging, and has good stability and safety.

Claims

1. A lotus seed and lily drink, characterized in that: The invention comprises the following raw materials in weight ratio: 40 g / L lotus seeds, 20 g / L coix seeds, 25 g / L erythritol, 10 g / L lily, 0.8 g / L vitamin C, 0.6 g / L sodium D-isoascorbate, 0.02 g / L sucralose and 0.01 g / L stevioside.

2. The lotus seed and lily dew beverage according to claim 1, wherein the preparation method comprises the following steps: Step 1, raw material preparation; the raw materials are 40g / L lotus seeds, 20g / L coix seeds, 25g / L erythritol, 10g / L lily, 0.8g / L vitamin C, 0.6g / L sodium D-isoascorbate, 0.02g / L sucralose, and 0.01g / L stevioside; Step 2: Lotus seed processing: Wash the lotus seeds, remove impurities, and soak them appropriately to soften them. Remove the core of the lotus seeds after soaking. To reduce bitterness and improve taste. Step 3: Lily processing: Wash the lilies to remove dirt and impurities on the surface and retain their nutrients. Step 4: Processing the coix seeds: Wash the coix seeds, remove impurities and then soak them to ensure that they are fully expanded and evenly cooked in subsequent processing. Step 5, heating extraction: Mix the processed lotus seeds, lilies and coix seeds according to the formula ratio, add appropriate amount of water, and heat extraction at 80℃-90℃ for 60-90 minutes. During the extraction process, vitamin C and sodium D-isoascorbate are added to prevent oxidation of the ingredients and maintain the color and nutritional content of the drink. Step 6, filtration step by step: The extract is filtered through coarse and fine filtration to remove large particles and impurities step by step to ensure the purity of the liquid. The extracted liquid after filtration should reach the required clarity. Step 7, blending: Add erythritol, sucralose and steviol glycosides to the filtered extract to adjust the sweetness and flavor of the drink. Stir thoroughly during blending to ensure that all ingredients are evenly distributed. Step 8, fine filtration (0.18μm); the prepared beverage is finely filtered again, using a filter membrane with a pore size of 0.18μm to remove microorganisms and other tiny particles to ensure the safety and quality of the beverage. Step nine, keep warm (98°C-100°C, 30 minutes); keep the filtered liquid warm at 98°C-100°C for 30 minutes to maintain the uniformity of the drink and improve its stability. Step 10: Sterilization (125°C, 30 seconds); through instantaneous high temperature sterilization at 125°C, the sterility of the beverage is ensured, bacterial growth is prevented, and the shelf life of the product is extended. Step 11, aseptic filling: Fill the processed lotus seed and lily juice under aseptic conditions, using aseptic filling technology to prevent secondary contamination and ensure the final quality of the product.

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