CN102132847A

CN102132847A - Method for extracting dietary fiber from leftovers of bamboo shoots

Info

Publication number: CN102132847A
Application number: CN2011100571095A
Authority: CN
Inventors: 杨军
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-10
Filing date: 2011-03-10
Publication date: 2011-07-27

Abstract

The invention discloses a method for extracting dietary fiber from leftovers of bamboo shoots, comprising the following steps: removing earth from the heads of aged bamboo shoots cut in the processing of the bamboo shoots, peeling the husks of the bamboo shoots, cleaning, squeezing and separating bamboo juice and bamboo shoot residuals; and processing the bamboo shoot residuals with steam explosion and ultrafine powder technology to obtain high-quality diet fiber. The method can be used for recovering and reutilizing the heads of the bamboo shoots to prepare and process the dietary fiber, thereby changing wastes into valuables, achieving good application prospect, finding a new way for the comprehensive utilization of the bamboo shoots. By the method, the additional value of the bamboo shoot product is increased, the resource waste is reduced, the environment is protected. Therefore the method has good social and economical benefits.

Description

A kind of method of utilizing the bamboo shoots leftover bits and pieces to extract dietary fiber

Technical field

The present invention relates to the processing method of bamboo shoots product, particularly utilize the bamboo shoots head extraction bamboo juice of bamboo shoots leftover bits and pieces and the method for dietary fiber, belong to food processing technology field.

Background technology

Fresh bamboo shoots contains moisture 90%, cellulosic 4%, protein 3%, total reducing sugar 2.5%, fat about 0.5%, contains abundant various trace elements, and bamboo shoots property is sweet, be slightly cold, and the function heat-clearing, removes phlegm, and cough-relieving all has certain curative effect to hypertension, constipation, diabetes.Bamboo shoots are high fiber, low fat, the complete desirable dietary fibre materials of nutrition, the food that is loved by the people, and being described as " vegetarian diet first product " is a kind of desirable dietary fibre materials.

Bamboo shoots are important foodstuffs resources of a kind of high nutrition, all contain multiple nutritional components at the bamboo shoots each several part, and wherein potassium content is up to 4%, protein 2.6%, amino acid 0.69%, and these all are rare in general plant food.Bamboo shoots processing will be excised bamboo shoots lower end 1/3 aging bamboo shoots head just can be processed into dried bamboo shoots or Bamboo shoots, and the bamboo shoots head of thousands of tons contains nutritious cellulose, protein, fat and the polysaccharide of enriching very much, and the bamboo shoots effective rate of utilization only is 30%.Export trade bamboo shoots particularly, strict especially to ingredient requirement, add and only get the tender bamboo shoot body tip of children man-hour, remaining have 70% to be dropped as leftover bits and pieces approximately, and raw material availability is too low like this, causes production cost too high.Cause the significant wastage of bamboo shoots resource, these waste materials must transport the countryside stacking to promptly needs also serious environment pollution of a lot of freight charges.

Dietary fiber is meant polysaccharide carbohydrate and the lignin that is not absorbed by human consumption, and dietary fiber is called as " the seventh-largest nutrient " of necessary for human, is also referred to as " enteron aisle street cleaner ".Dietary fiber is owing to have stronger water holding, ability of retaining oil, cholesterol, porphyrin and heavy metal in the energy chelating alimentary canal, intercept carcinogenic generation, and the wriggling of promotion intestines, be beneficial to the discharge of person refuse, reduce the absorption of harmful substance, dietary fiber more and more is subject to people's attention, and the Application and Development of dietary fiber has important practical significance and vast market prospect.

Dietary fiber is multiple mixture of ingredients such as a kind of fibre-bearing element, hemicellulose, lignin, pectin and soluble polysaccharide, it is as a kind of extremely important functional food, and absorbing enough fibers can angiocardiopathy preventing, cancer, diabetes and other disease.Therefore, the exploitation diet fiber product has extremely great realistic significance to the general level of the health that improves China people.

Summary of the invention

The invention discloses a kind of method of utilizing bamboo shoots processing fent bamboo shoots head to extract dietary fiber, old bamboo shoot head under the processing cutting is removed the bamboo shoot shell, earth, isolate bamboo juice and bamboo shoot slag by cleaning squeezing, to adopt the steam blasting technology to send in the steam blasting jar from the isolated bamboo shoots slag of juice extractor, utilize the cellulose in the high-temperature high-pressure steam processing bamboo shoots slag, enter in the bamboo shoots slag fiber in steam blasting process mesohigh vapours, penetrate into the space of fibrous inside, produce " explosion " effect by the moment pressure release, bamboo shoots fiber surface and cell membrane are subjected to destruction in various degree, can produce " puffed rice " sample effect phenomenon, surface area increases hole and increases, realize the separation and the structural change of raw material, and raw material torn be fiber fines.Adopt superfine technique that fiber is carried out ultra-fine grinding then and handle, obtain the dietary fiber of high-quality.

Beneficial effect of the present invention; fully adopt the bamboo shoots head to extract bamboo juice and dietary fiber; can rationally utilize forest conservation people's green home; be that the performance resources advantage obtains one of effective way of more economic benefits, it is more that the not directly edible aging part of bamboo shoots contains juice, and solid content is higher; prepare the bamboo juice drink by operations such as the enzymolysis of squeezing the juice, film separating clarifyings; this class natural beverage contains abundant nutritive and health protection components, and has unique natural bamboo shoots delicate fragrance, unique flavor.The bamboo shoots fiber is handled by steam blasting, ultramicro grinding, can obtain the dietary fiber of high-quality.

Dietary fiber is as a kind of extremely important functional food, in the exploitation of functional food, also more and more be much accounted of, the bamboo shoots slag contains the rich dietary fiber composition, extract dietary fiber by steam blasting and superfine communication technique, mechanical crushing output is big, cost is low, make in the bamboo shoots big molecule cellulose degradation become less cellobiose of molecular weight and glucose molecule, destroy plant cell wall, intracellular material is fully discharged, changed the high enzymolysis and extraction bamboo shoots fiber process of the many costs of traditional employing expense.

Employing bamboo shoots head extraction bamboo juice, taste sweet, with low cost, fuel savings abundanter more than bamboo extraction nutrition utilizes the preparation of bamboo shoots head to process dietary fiber, and turning waste into wealth has a good application prospect.The present invention has carried out recycling to the bamboo shoots head; rationally utilized the nutritive value of bamboo shoots; seek a new approach for the comprehensive utilization of bamboo shoots, promptly increase the waste that the bamboo shoots value-added content of product reduces resource again, environment is protected and has good social benefit and economic benefit.

The specific embodiment

Drain after cleaning up after the bamboo shoots head that excises peelled off the bamboo shoot shell, with the drum-type fruit washing machine, stripping and slicing, become the fragment of 3mm～6mm with crusher in crushing, with the stainless steel squeezer bamboo shoots head is squeezed the juice, through squeezing bamboo juice and bamboo shoot slag are separated, bamboo juice adopts enzymolysis and membrane separation technique to extract bright product bamboo juice, and the bamboo shoot slag adopts steam blasting technology and superfine communication technique to extract dietary fiber.

Take out the bamboo shoot slag in the juice extractor and pack in the steam blasting device, steam blasting preliminary treatment pressure is controlled at released vapour behind 2.0MPa～3.0 MPa, retention time 60s～90s.

The bamboo shoot slag that steam blasting was handled adopts case of wet attrition with superfine powder equipment, material particles is crushed to the fine powder of 10～25 μ m, after the pulverizing product is sent in the air flow dryer air-dryly, obtained content greater than 70% insoluble diedairy fiber and 5% soluble dietary fiber.

Claims

1. method of utilizing the bamboo shoots leftover bits and pieces to extract dietary fiber is characterized in that adopting following method to extract:

(1), the bamboo shoots head that bamboo shoots processing is excised is removed bamboo shoot shell and earth, is placed on and drains after cleaning up in the drum-type fruit washing machine, the bamboo shoots head is broken into the fragment of 3mm～6mm with disintegrating machine, adopt the stainless steel squeezer that the bamboo shoots head is squeezed the juice, separate through squeezing bamboo juice and bamboo shoot slag;

(2), take out the bamboo shoot slag in the juice extractor and pack in the steam blasting device, steam blasting preliminary treatment pressure is controlled at released vapour behind 2.0MPa～3.0 MPa, retention time 60s～90s;

(3), the bamboo shoot slag of steam blasting being handled adopts case of wet attrition with superfine powder equipment, material particles is crushed to the fine powder of 10～25 μ m, after the pulverizing product is sent in the air flow dryer air-dryly, obtained content greater than 70% insoluble diedairy fiber and 5% soluble dietary fiber.

2. according to the described a kind of method of utilizing the bamboo shoots leftover bits and pieces to extract dietary fiber of claim 1, it is characterized in that: the bamboo shoot slag is packed in the steam blasting device, released vapour behind retention time 80s～90s.