Lotus seed oolong milk tea with low GI value and preparation method of tea

A lotus seed and oolong technology, applied in the direction of milk preparations, dairy products, tea extraction, etc., can solve problems such as sudden rise in blood sugar, achieve the effects of reducing damage, reducing production costs, and optimizing beverage flavor

Inactive Publication Date: 2020-06-12
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the main component of lotus seeds is starch. After finely processed starch enters the human digestive sys...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one: a kind of preparation method of lotus seed oolong milk tea with low GI value, comprises the following steps:

[0024] (1) Preparation of acidic lotus seed pulp: in parts by weight, take 5 parts of lotus seed powder and 1 part of citric acid solution, and mix them at room temperature to obtain acidic lotus seed pulp with a pH value of 1.8-2.3;

[0025] (2) Microwave-ultrasonic treatment of acidic lotus seed pulp: process the acidic lotus seed pulp prepared in step (1) under the conditions of microwave power 800 W and ultrasonic power 400 W for 5 minutes, then let stand and cool naturally to obtain microwave-ultrasonic Processed acidic lotus seed pulp;

[0026] (3) Preparation of resistant dextrin lotus seed powder: take the acidic lotus seed pulp prepared in step (2) after microwave-ultrasonic treatment, add NaOH solution with a weight concentration of 5%, until the pH value is neutral; Dried under hot air, crushed and passed through a 100-mesh sieve to ...

Embodiment 2

[0029] Embodiment two: a kind of preparation method of lotus seed oolong milk tea with low GI value, comprises the following steps:

[0030] (1) Preparation of acidic lotus seed pulp: in parts by weight, take 5 parts of lotus seed powder and 2 parts of acetic acid and tartaric acid mixed solution, stir and mix at room temperature to obtain acidic lotus seed pulp with a pH value of 1.8-2.3; the acetic acid In the mixed solution with tartaric acid, 1 part each of acetic acid and tartaric acid;

[0031] (2) Microwave-ultrasonic treatment of acidic lotus seed pulp: process the acidic lotus seed pulp prepared in step (1) under the conditions of microwave power 1000 W and ultrasonic power 385 W for 3 minutes, then let stand and cool naturally to obtain microwave-ultrasonic Processed acidic lotus seed pulp;

[0032] (3) Preparation of resistant dextrin lotus seed powder: take the acidic lotus seed pulp prepared in step (2) after microwave-ultrasonic treatment, add NaOH solution with...

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PUM

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Abstract

The invention relates to lotus seed oolong milk tea with a low GI value and a preparation method of the tea. The preparation method of the lotus seed oolong milk tea with the low GI value comprises the following steps of preparing acidic lotus seed pulp, performing microwave-ultrasonic treatment on the acidic lotus seed pulp, preparing resistant dextrin lotus seed powder, and preparing the lotus seed oolong milk tea with the low GI value. An organic acid and microwave-ultrasonic wave combined process is used for treating lotus seed pulp, conversion of lotus seed digestible starch into water-soluble resistant dextrin is promoted, the ratio of the resistant dextrin in the lotus seed raw material is remarkably increased, the activity of amylase is inhibited by adding oolong tea extract, and the GI value is remarkably reduced under the synergistic effect. The preparation process of the lotus seed oolong milk tea with the low GI value is simple and convenient; the product in the form of solid powder is convenient to store and carry, the nutritional ingredients and fragrance of lotus seeds and oolong tea are reserved, the requirements of nutrition and health at met, the adverse effect ofa large amount of digestible starch in the traditional lotus seed juice on the blood sugar level in the body is overcome, and the lotus seed oolong milk tea is suitable for consumers needing to control the blood sugar level to drink.

Description

technical field [0001] The invention relates to a healthy beverage and a preparation method thereof, in particular to a low GI lotus seed oolong milk tea and a preparation method thereof, belonging to the technical field of food processing. Background technique [0002] Lotus seed is an important specialty aquatic vegetable in southern my country. As a high-grade nourishing food, it has a long history in my country. Studies have shown that lotus seed has high nutritional value and health care effect. It is a precious good product for both medicine and food. The market is favored by consumers. The processed products of lotus seeds mainly include quick-frozen fresh lotus seeds, instant lotus seeds, lotus seed juice, canned lotus seeds, lotus seed biscuits, lotus seed noodles, etc., which have promoted the upgrading of my country's lotus seed industry. However, the main component of lotus seeds is starch. After finely processed starch enters the human digestive system, it is ea...

Claims

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Application Information

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IPC IPC(8): A23C9/16A23C9/152A23C9/156A23F3/30
CPCA23C9/16A23C9/152A23C9/156A23F3/30
Inventor 郑亚凤郑宝东林彤陈灿辉江文韬李舒婷李正一陈雯
Owner FUJIAN AGRI & FORESTRY UNIV
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