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Purple yam tea and preparation method thereof

A technology for yam tea and purple yam, applied in the field of purple yam tea and its preparation, can solve the problems of destruction of nutrients, stickiness, oxidation of anthocyanin components, etc., and achieve the effect of expanding the scope of market application and enriching varieties.

Inactive Publication Date: 2019-03-22
麻栗坡县地力利农业科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the brewing process of purple yam powder will seriously damage the various nutrients contained in purple yam, especially the anthocyanin components will be severely oxidized, thus losing the medicinal value of purple yam
At the same time, the drink brewed with purple yam powder has a certain sticky taste, which is not acceptable to most people

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of purple yam tea, comprising the following steps:

[0025] S1. Pick fresh purple yam and perform pre-treatment.

[0026] The pretreatment in step S1 includes: cleaning treatment, sterilization treatment and peeling treatment. The cleaning method includes: cleaning the purple yam by spraying a cleaning solution. The sterilizing method includes: spraying the purple yam with disinfectant. The peeling treatment is as follows: after the outer skin of the purple yam is removed, the peeled purple yam is soaked in soaking solution for 45 minutes. On the one hand, the soaking treatment is to clean the peeled purple yam, and on the other hand, it can passivate the outermost layer of the peeled purple yam to protect the contents from oxidation.

[0027] S2. Cooking the pre-treated purple yam obtained in step S1 to obtain steamed purple yam.

[0028] The steaming treatment method in step S2 includes: placing the pretreated purple yam in a water-bath steame...

Embodiment 2

[0035] A preparation method of purple yam tea, comprising the following steps:

[0036] S1. Pick fresh purple yam and perform pre-treatment.

[0037] The pretreatment in step S1 includes: cleaning treatment, sterilization treatment and peeling treatment. The cleaning method includes: cleaning the purple yam by spraying a cleaning solution. The sterilizing method includes: spraying the purple yam with disinfectant. The peeling treatment is as follows: after the outer skin of the purple yam is removed, the peeled purple yam is soaked in soaking solution for 60 minutes.

[0038] S2. Cooking the pre-treated purple yam obtained in step S1 to obtain steamed purple yam.

[0039] The steaming treatment method in step S2 includes: placing the pretreated purple yam in a water-bath steamer or a steamer, and steaming for 40 minutes to complete the steaming operation.

[0040] S3. Roasting the steamed purple yam obtained in step S2 to obtain roasted purple yam.

[0041] The roasting m...

Embodiment 3

[0045] A preparation method of purple yam tea, comprising the following steps:

[0046] S1. Pick fresh purple yam and perform pre-treatment.

[0047] The pretreatment in step S1 includes: cleaning treatment, sterilization treatment and peeling treatment. The cleaning method includes: cleaning the purple yam by spraying a cleaning solution. The sterilizing method includes: spraying the purple yam with disinfectant. The peeling treatment is as follows: after the outer skin of the purple yam is removed, the peeled purple yam is soaked in soaking solution for 30 minutes.

[0048] S2. Cooking the pre-treated purple yam obtained in step S1 to obtain steamed purple yam.

[0049] The steaming treatment method in step S2 includes: placing the pretreated purple yam in a water-bath steamer or a steamer, and steaming for 20 minutes to complete the steaming operation.

[0050] S3. Roasting the steamed purple yam obtained in step S2 to obtain roasted purple yam.

[0051] The roasting m...

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PUM

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Abstract

The invention provides a preparation method of purple yam tea for overcoming defects in the prior art. The preparation method comprises the following steps: S1, picking fresh purple yams and performing pretreatment; S2, cooking the completely pretreated purple yams in the S1 so as to obtain cooked purple yams; S3, baking the cooked purple yams obtained in the S2 so as to obtain backed purple yams;S4, performing after-treatment on the cooked purple yams in the S3, so as to obtain the purple yam tea. According to the preparation method disclosed by the invention, the purple yam is prepared intopurple yam tea serving as substitutional tea, types of purple yam deep processing products are enriched, new selections are provided for more consumers, and the market application range of the purpleyam is widened. Moreover, the nutritional ingredients, particularly anthocyanin, in the purple yam can be effectively remained. The nutritional ingredients can be gradually released in the later soaking and eating processes.

Description

technical field [0001] The invention belongs to the technical field of preparation of tea substitutes, and in particular relates to a purple yam tea and a preparation method thereof. Background technique [0002] Purple yam is also known as "purple ginseng", also known as yam and long taro. Its appearance is thick and long, with a length of about 20 cm and a diameter at breast height of about 15 cm. The flesh is purplish red and has a good taste. Rich in nutrition, it contains more than 20 kinds of nutrients such as starch, polysaccharide, protein, saponin, amylase, choline, amino acid, vitamin, calcium, iron and zinc. According to the inspection and determination of Vegetable and Fruit Quality Supervision, Inspection and Testing Center (Guangzhou) of the Ministry of Agriculture, it contains 23.3% starch, 75.5% moisture, 1.14% crude protein, 0.62% total sugar, 0.020% crude fat, 2.59mg / kg iron, and 2.27% zinc. mg / kg, copper 0.753mg / kg. Purple yam is also rich in anthocyan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/34
CPCA23F3/34
Inventor 王天贵
Owner 麻栗坡县地力利农业科技开发有限公司
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