CN101574104A - Processing method for quick-freezing garden bean - Google Patents

Abstract

The invention relates to a processing method for quick-freezing a garden bean, belonging to the technical field of methods for processing vegetables. The invention aims at providing the quick-freezing processing method which can maintain the original flavor and the quality of the garden bean for a long term. The technical scheme of the invention is as follows: cleaning and shearing both ends; immersing and scalding: the garden bean is led into an immersion scalding device, uniform feeding is maintained, water temperature is maintained at the level more than 95 DEG C for 1 to 2 minutes; and quick cooling: the garden bean is quick-freezen under minus 30 DEG C and then is packed and kept in cold preservation. The preparation method of the invention has the advantages of easy operation and simple process, and contributes to the fresh keeping of the garden bean.

Description

A kind of processing method for quick-freezing garden bean

Technical field:

The present invention relates to a kind of vegetables processing method, particularly a kind of processing method for quick-freezing garden bean.

Technical background:

The French bean look green is delicious, and is nutritious.French bean also claims kidney bean, kidney bean, beautiful beans, pocket knife beans etc., originates in Central and South America, China south each province's spring, can cultivate in two seasons of autumn.By its color and luster, sword bean has French bean and is coated with the wax bean of wax, by shape, sword bean has flat or circle, and intermediate form is also arranged, and kind is a lot. and this product contains calcium, iron, phosphorus and various trace elements and vitamin, effective in cure to having a pain in the back, be the satisfactory to both parties health food of a kind of food medicine.But it should not be stored, and is easy to lose its delicate flavour.

Summary of the invention:

Technical problem to be solved by this invention provides a kind of processing method that is suitable for storage, fresh-keeping quick-freezing garden bean.

The object of the present invention is achieved like this:

1) after raw material is pressed standard grading, cuts off two ends;

2) after cleaning, soak boiling hotly, in 95 ℃ of coolant-temperature gages more than the degree, soak and scalded 1-2 minute, and keep material loading even;

3) speed is cold: packing refrigeration gets final product after quick-frozen 10-30 below-30 degrees centigrade minute.

Beneficial effect:

Boiling hot owing to taking to soak, thus the part microorganism killed, get rid of portion gas and part moisture in the tissue; Simultaneously the low temperature after freezing has suppressed the metabolic activity of microorganisms such as bacterium, mould, makes it be in resting state, prolongs storage life, thereby has delayed the consumption of color and luster, local flavor, quality and the nutrition of French bean; In addition, preparation method's easy operating of the present invention, technology is simple, is beneficial to fresh-keeping to French bean.

The specific embodiment:

Operating procedure:

Step 1: select qualified supplier by target level of product quality by purchasing department is strict.To signing " agricultural byproducts base plantation agreement ", and, in time check and accept by quality standard at ordinary times to the qualified French bean raw material of peasant household's plantation generaI investigation.Buy raw material according to the Workshop Production needs on time. raw material is bought back quality portion the raw material of buying is tested, and just can put storage in storage after the assay was approved.

Step 2: classification, haircut: it is obviously outstanding to pick out beans, and yellow pityriasis simplex and lopsided beanpod are pressed standard grading: M: diameter 8-9mm length 8-12cm; S: diameter 7-8mm length 8-12cm; Section: diameter 7-10mm length 3.5cm, 5cm etc. cut off two ends with scissors.

Step 3: clean: clean in flowing water, cleaning is that dirt and remaining impurity such as the sharp base of a fruit are washed off, in cleaning process, keeps the flowing water cleaning.

Soak boiling hot: the scalding machine coolant-temperature gage remains on 95 ℃ more than the degree, and the belt speed of scalding machine is adjusted into M level 25Hz, S level 30Hz.Section 26.75Hz keeps material loading even.

Step 4: cooling: fully cooling in flowing water.

Step 5: speed is cold: material loading is even, quick-frozen below-30 degrees centigrade, and belt speed:

Step 6: pack, weigh, seal: polybag is added a cover date of manufacture on the same day or reward flavor time limit, selects while packing, and seals and wants tight.

Step 7: gold inspection: by gold inspection instrument, the sensitivity of gold inspection instrument is Fe φ 1.5SUS φ 2.5.

Step 8: vanning, refrigeration: product having boxing is delivered to immediately below the freezer-18 degree centigrade and is preserved, and prevents to rise again and thaws.

Claims (1)

1, a kind of processing method of quick-freezing garden bean.It is characterized in that its operating procedure:

1) after raw material is pressed standard grading, cuts off two ends;

2) after cleaning, soak boiling hotly, in 95 ℃ of coolant-temperature gages more than the degree, soak and scalded 1-2 minute, and keep material loading even;

3) speed is cold: packing refrigeration gets final product after quick-frozen 10-30 below-30 degrees centigrade minute.