CN105230893A - Preparation method of tartarian buckwheat cotyledon tea - Google Patents

Abstract

The present invention discloses a preparation method of a tartarian buckwheat cotyledon tea. According to the present invention, cotyledons of sprouted tartarian buckwheat are used as a raw material to produce the tartarian buckwheat cotyledon tea which is greenyellow, the brewed tea soup is clear and without suspended materials, and has good mouth feel, the tea leaves are resistant to brewing, and the preparation method is simple, has a low production cost, and is worth to popularize and apply in large scale. Experiments show that content of total flavonoids in the tartarian buckwheat cotyledon tea prepared in the invention is 3.2 times of that in tartarian buckwheat grains, and content of gamma aminobutyric acids in the tartarian buckwheat cotyledon tea is higher by about 2 times than that in ordinary buckwheat tea.

Description

A kind of preparation method of tartary buckwheat cotyledon tea

Technical field

The present invention relates to the preparation method of bitter buckwheat tea, especially a kind of preparation method of tartary buckwheat cotyledon tea.

Background content

Duck wheat is also known as hull buckwheat (Fagopyrumtataricum), and be buckwheat dicotyledon, it all has plantation, the rich in nutritive value of bitter buckwheat on Chinese yunnan, Sichuan, Gansu and other places, belongs to medicine-food two-purpose crop.Numerous research shows, duck wheat is rich in the trophic function compositions such as protein, starch, fat, vitamin, mineral matter and trace element, and compared with general buck wheat, the content of the rutin contained by it, Quercetin, Flavonoid substances wants high.Modern study confirms that flavone compound has very high edibility and medical value, has the effects such as control cardiovascular and cerebrovascular disease, diabetes, anti-inflammation, anti-hepatitis B surface antigen.Long-term eating can strengthen body immunity, has good health-care effect.

In recent years, along with the raising of people's living standard and the reinforcement of whole society's concept of health, the duck wheat as healthy food gets most of the attention, particularly bitter buckwheat tea liking deeply by consumers in general.

At present to the processing of bitter buckwheat tea mainly with bitter buckwheat seed for raw material, contain the ANFs such as highly active trypsin inhibitor and rutin hydrolase due to its seed and its nutritive value such as a large amount of resistant starches and anaphylactogen does not find full expression.There are some researches show, can there is larger change in duck wheat physicochemical property after sprouting, nutritive value significantly improves.And sprouting also has improving effect to the nutritional quality of bitter buckwheat, after bitter buckwheat sprouting, the activity of its trypsin inhibitor reduces, and rutin hydrolase activity reduces, and amino acid is more balanced.But the research report that tartary buckwheat cotyledon prepares bitter buckwheat tea as raw material is also less, China Patent No. is slaking → oven dry → frying that CN103027154B discloses that " a kind of tartary buckwheat cotyledon tea and preparation method thereof " the method comprises the steps: the germination → tartary buckwheat cotyledon of the pretreatment → bitter buckwheat seed of bitter buckwheat seed, utilize the obtained tartary buckwheat cotyledon tea flavones content of the method to significantly improve, but the active constituent content of the GABA contained in duck wheat (GABA) does not significantly improve.

Summary of the invention

The object of the present invention is to provide one can either effective this excellent effective component of enriching gamma-aminobutyric, significantly improve again the method preparing tartary buckwheat cotyledon tea of flavones content.

The present invention prepares the method for tartary buckwheat cotyledon tea, comprises the steps:

1. win bitter buckwheat seed germination 8-10 days cotyledons, then impregnated in 70-80 DEG C of hot water, slaking 10-15min;

2. the tartary buckwheat cotyledon of slaking is steamed 5-10min, be then placed in 50-70 DEG C of baking oven and smoke 1-1.5h;

3. by dried tartary buckwheat cotyledon in the 100-120 DEG C of 15-20min that stir-fries fast.

Beneficial effect of the present invention: after the present invention adopts bitter buckwheat to germinate, cotyledon is the bitter buckwheat tea that raw material is produced is yellow green, and brew rear no suspended substance matter, millet paste is limpid, and mouthfeel is good, endures repeated infusions, and preparation method is simple, and production cost is low, is applicable to industrial application.Experimentally show, the total flavonoids substance content of the tartary buckwheat cotyledon tea obtained by the present invention is 3.2 times in bitter buckwheat grain, and contained alpha-aminobutyric acid content exceeds about 2 times compared with general buck wheat tea.GABA is a seed amino acid, mainly play the effect that suppression is transmitter substance in vivo, as its drug effect, known its has the improvement result of many symptoms of hypotensive effect, ataraxy effect, brain metabolism facilitation, cerebrovascular disorder.By tartary buckwheat cotyledon being impregnated in 70-80 DEG C of hot water, impel contained glutamate dehydrogenase enzyme activation and then change GABA into, therefore GABA is by effective enrichment.

Detailed description of the invention

Embodiment 1

Selection uniform particles is full, without the bitter buckwheat seed of flat shell, after it is soaked 15h with clear water, the environment again seed be soaked in water being placed in 25 DEG C makes it sprout, and at the 8th day of bitter buckwheat germination, wins tartary buckwheat cotyledon, shell and then impregnated in 70 DEG C of hot water, slaking 10min; The tartary buckwheat cotyledon of slaking is steamed 5min, is then placed in 50 DEG C of baking ovens and smokes 1h; Make tartary buckwheat cotyledon slaking and cotyledon is complete; By dried tartary buckwheat cotyledon in 120 DEG C of 15min that stir-fry fast.

Embodiment 2

Selection uniform particles is full, clean by washed with de-ionized water after placing 5-10min after eluriating buckwheat seed without the bitter buckwheat seed mass fraction of the flat shell saline solution that is 15-20%, it is made to sprout by being soaked in water the environment being placed in 20 DEG C again, within 9th day, tartary buckwheat cotyledon is won after sprouting, shell, then impregnated in 75 DEG C of hot water, slaking 10min; The tartary buckwheat cotyledon of slaking is steamed 8min, is then placed in 65 DEG C of baking ovens and smokes 1.2h; Make tartary buckwheat cotyledon slaking and cotyledon is complete; By dried tartary buckwheat cotyledon in 100 DEG C of 18min that stir-fry fast.

Embodiment 3

Tartary buckwheat cotyledon tea compares with commercially available bitter buckwheat grain tea

Select the bitter buckwheat tea (contrast 2) of the bitter buckwheat tea of commercially available Sichuan powerful Olympic food and drink Co., Ltd (contrast 1), western stockaded village Ku Qiao Food Co., Ltd, the tartary buckwheat cotyledon tea that the embodiment of the present invention 2 machining obtains, the results are shown in Table 1.

The comparative result of table 1 tartary buckwheat cotyledon tea and commercially available bitter buckwheat grain tea

As can be seen from Table 1, tartary buckwheat cotyledon tea has the distinctive fragrant of tartary buckwheat cotyledon, delicate mouthfeel.Bitter buckwheat tea kind is less in the market, bitter buckwheat seed tea is a main species of bitter buckwheat tea, tartary buckwheat cotyledon tea is that bitter buckwheat tea product market provides a kind of new kind, and the general flavone content of tartary buckwheat cotyledon tea is apparently higher than measured 2 kinds of bitter buckwheat tea, rutin content is significantly higher than 2 kinds of bitter buckwheat tea samples equally, and the content of the active ingredient GABA of excellence is 1.97 and 2.3 times of two kinds of tea respectively, thus, tartary buckwheat cotyledon tea popularization is had great importance.

Claims (1)

1. a preparation method for tartary buckwheat cotyledon tea, is characterized in that: comprise the steps:

1. win bitter buckwheat seed germination 8-10 days cotyledons, then impregnated in 70-80 DEG C of hot water, slaking 10-15min;

2. the tartary buckwheat cotyledon of slaking is steamed 5-10min, be then placed in 50-70 DEG C of baking oven and smoke 1-1.5h;

3. by dried tartary buckwheat cotyledon in the 100-120 DEG C of 15-20min that stir-fries fast.