阅读说明：本技术 一种高温高压降低烟梗果胶含量的工艺方法 (A kind of high temperature and pressure reduces the process of offal pectin content ) 是由 孔臻 王兵 张大波 席年生 乔学义 周雅宁 李斌 姚光明 张彩云 于 2019-10-14 设计创作，主要内容包括：本发明涉及一种高温高压降低烟梗果胶含量的工艺方法,涉及烟草加工领域。其工艺步骤包括烟梗高温高压膨胀、洗梗溶出果胶、螺旋压榨脱水、压梗、切梗丝、加料、烘丝,最后得到梗丝成品。本发明利用高温高压将坚硬的烟梗膨胀,使其组织结构疏松,并且在高温高压的作用下,烟梗中的长链果胶发生断裂,提高了果胶的溶出率。经过高温高压膨胀、水洗压榨后的烟梗中果胶含量降低,梗丝的品质得以改善,刺激性、辛辣感减轻,在卷烟中的使用比例增加,特别是由于梗丝果胶含量的降低,减轻了烟梗在后续压梗过程中的粘辊和切丝过程中的黏刀现象,提高了梗丝的加工质量和加工效率。本发明工艺简单,可操作性强,效果明显,具有较好的应用前景。(The present invention relates to the processes that a kind of high temperature and pressure reduces offal pectin content, are related to tobacco manufacture field.Its processing step includes the expansion of offal high temperature and pressure, washes stalk dissolution pectin, screw press dehydration, pressure stalk, cut stem, charging, dry silk, finally obtains stem finished product.Hard cabo expansion is kept its institutional framework loose by the present invention using high temperature and pressure, and under the influence of high pressure and temperature, the long-chain pectin in offal is broken, and improves the dissolution rate of pectin.Pectin content reduces in offal after high temperature and pressure expansion, washing squeezing, the quality of stem is improved, irritation, pungent sense mitigate, use ratio in cigarette increases, especially because the reduction of stem pectin content, roll banding of offal during subsequent pressure stalk and the glutinous knife phenomenon during chopping are alleviated, the processing quality and processing efficiency of stem are improved.Present invention process is simple, and strong operability, effect is obvious, with good application prospect.)

1. the process that a kind of high temperature and pressure reduces offal pectin content, comprising the following steps: at offal washing, high temperature and pressure Reason impregnates elution, press dewatering, presses stalk chopping, stem charging, stem dry, it is characterised in that:

The high temperature high pressure process is that the offal after washing is entered to high pressure terrier machine to carry out terrier, and moisture is acted in high temperature and pressure Under, it rapidly permeating into inside offal, when discharging, pressure moment drops to normal pressure, makes offal volume expansion, it organizes to become loose,

Described to impregnate elution be that the offal after expansion is placed in the purge tank with blender and is cleaned, offal and liquid Ratio is 1:1.5 ~ 3.0, the aqueous citric acid solution that liquid is 0.5%；

The press dewatering refers to that the offal after impregnating elution is discharged from purge tank and drains, and constant flow enters pressafiner Middle carry out press dewatering, the moisture content of offal is 40 ± 2% after squeezing.

2. the process that high temperature and pressure according to claim 1 reduces offal pectin content, it is characterised in that: in high temperature In HIGH PRESSURE TREATMENT step, for the control of high pressure terrier machine pressure in 0.25 ~ 0.45Mpa, temperature is 130 DEG C ~ 180 DEG C, and the terrier time is 40~60s。

3. the process that high temperature and pressure according to claim 1 reduces offal pectin content, it is characterised in that: impregnating In elution process, eluting temperature is 40 ~ 70 DEG C, and soaking time is 5 ~ 10min, and blender keeps rotation, revolving speed 10 when immersion Rev/min.

4. the process that high temperature and pressure according to claim 1 reduces offal pectin content, it is characterised in that: squeezing In dehydration, squeeze pressure is controlled in 1000 ~ 2000Pa.

5. the process that high temperature and pressure described in crossing 2 according to claim 1 reduces offal pectin content, it is characterised in that: institute Stating high pressure terrier machine is WQ25 type steam boosting offal moisture regaining machine.

6. the process that high temperature and pressure according to claim 1 reduces offal pectin content, it is characterised in that: the pressure Stalk chopping is carries out chopping with filament cutter after offal is depressed into 0.6 ~ 1.2mm thickness with tobacco stem flattener, cut width for 0.1 ~ 0.5mm。

Technical field

The invention belongs to tobacco manufacture fields, are specifically related to a kind of process that can reduce pectin content in offal.

Background technique

Offal is the primary raw material of Cigarette processing, and stem is made after processing in offal, the good, Filling power with flammability High, the features such as releasing content of coke tar is low, improve cigarette burning performance, in terms of significant effect.Due to offal epidermis Hard, the cell wall substance contents such as cellulose, hemicellulose, lignin are abundant, and water absorbing properties are poor, therefore in tobacco peduncle processing course In need high-moisture, high-temperature and high pressure processing, the processing of this high intensity can largely lead to the fruit in offal Glue is precipitated, and makes offal surface tacky, influences subsequent pressure stalk and chopping, can generate roll banding and glutinous knife phenomenon.Stem after cutting The serious adhesion of meeting, influences subsequent charging, drying effect.

Flavor matter precursor content in offal is less, and the component contents phase such as pectin, cellulose, hemicellulose lignin To higher, causing stem that can exist in suction, fragrance is insufficient, irritation is big, the miscellaneous gas apparent sensory handicaps such as again, while fruit The harmful components such as phenol, crotonaldehyde can be generated after glue thermal cracking, therefore reduce pectin content in tobacco peduncle processing course, not only may be used To improve the pumped mass of finished product stem, and the burst size of harmful components can be reduced to a certain extent.

The pectin in offal is reduced there are many method, Chinese patent 201210230744.3 utilizes microwave-assisted reduction offal Middle pectin content, whole process does not need to carry out acidolysis, enzymatic hydrolysis, crushing to raw material, to not destroy the physics of offal State meets requirement of the reconstituted tobacoo technique production to raw material, and can effectively remove the pectin in offal in a relatively short period of time, It is produced suitable for reconstituted tobacoo.Chinese patent 201410494374.3 prepares cellulase treatment using complex enzyme and natural extract Liquid impregnates offal, Partial digestion lignin, cellulose, pectin etc..Chinese patent CN200510104443.6 utilizes lignin Enzyme, pectase, cellulase, amylase, protease, esterase complex enzyme formulation lignin degrading, cellulose, pectin etc., reach Mitigate miscellaneous gas and irritating purpose.

But the above method is substantially and needs to carry out enzymolysis processing to offal to have the following disadvantages: first is that when processing Between it is long, general enzymolysis time was at 2 hours or more；Second is that enzymatic hydrolysis condition requires strictly, to need the amount to enzyme preparation, hydrolysis temperature tight Lattice control, is difficult to apply in actual production；Third is that the pectin largely removed can destroy the skeleton structure of offal, finished product is caused to obstruct The physical strength decline of silk, is easy to make in application process broken.

Chinese patent also discloses a kind of " a kind of processing technology for reducing pectin content in stem " (201210291482.1), it is to be removed the peel and polished by slightly obstructing, offal bast is recycled by mechanical force removal and is contained The citric acid solution of sodium metaphosphate embathes, with this come achieve the purpose that reduce stem in pectin content.But this method exists Following problems: first is that removing offal bast with the method for peeling polishing, industrialized production and application are not suitable for it；Second is that losing bast The decline of offal intensity, cause to make broken in process, stem silk production rate is low；Third is that the offal after soaking and washing is without de- Hydraulic art, moisture content is high, and subsequent charge, pressure stalk and chopping difficulty are larger.

Summary of the invention

The purpose of the present invention be based on it is above-mentioned the problems of in the prior art, in view of offal in high temperature high pressure process It is easy to produce pectin precipitation in the process, makes offal surfaces of tacky, the roll banding and the phenomenon that glutinous knife during subsequent pressure stalk is with chopping, Propose the method using acid-heated water's extraction, screw press dehydration, the fruit that offal is precipitated during high temperature high pressure process Peptization solution is detached from.

The purpose of the present invention can be achieved through the following technical solutions:

A kind of high temperature and pressure reduces the process of offal pectin content, comprising the following steps: at offal washing, high temperature and pressure Reason impregnates elution, press dewatering, presses stalk chopping, stem charging, stem dry, it is characterised in that:

The high temperature high pressure process is that the offal after washing is entered to high pressure terrier machine to carry out terrier, and moisture is acted in high temperature and pressure Under, it rapidly permeating into inside offal, when discharging, pressure moment drops to normal pressure, makes offal volume expansion, it organizes to become loose,

Described to impregnate elution be that the offal after expansion is placed in the purge tank with blender and is cleaned, offal and liquid Ratio is 1:1.5 ~ 3.0, the aqueous citric acid solution that liquid is 0.5%；

The press dewatering refers to that the offal after impregnating elution is discharged from purge tank and drains, and constant flow enters pressafiner Middle carry out press dewatering, the moisture content of offal is 40 ± 2% after squeezing.

More specifically, the method sequentially comprises the following steps:

(1) cabo sifting shaping: offal is sorted by separating sieve, is removed short stalk, thin stalk, is made the size uniformity of offal.

(2) offal is washed: tobacco stalk raw material being carried out washing resurgence by terrier wash machine, water temperature is controlled at 30 ~ 70 DEG C, after washing Offal moisture control is 25 ~ 35%.

(3) high temperature high pressure process: the offal after washing is entered into high pressure terrier machine and carries out terrier, moisture is made in high temperature and pressure Under, rapidly permeate into inside offal.When discharging, pressure moment drops to normal pressure, and offal volume expansion is organized to become loose.Profit Obstruct pressure control in 0.25 ~ 0.45Mpa, temperature is 130 DEG C ~ 180 DEG C, and the terrier time is 40 ~ 60s.

(4) it impregnates elution: the offal after expansion being placed in the purge tank with blender and is cleaned, offal and liquid Ratio be 1:1.5 ~ 3.0, liquid be 0.5% aqueous citric acid solution, eluting temperature be 40 ~ 70 DEG C, soaking time be 5 ~ 10min, blender keeps rotation when immersion, and revolving speed is 10 revs/min.

(5) press dewatering: the offal after impregnating elution is discharged from purge tank and drains, and constant flow enters pressafiner Middle carry out press dewatering, squeeze pressure are controlled in 1000 ~ 2000Pa or so.The moisture content of offal is about 40% after squeezing.

(6) pressure stalk chopping: chopping is carried out with filament cutter after pressure stalk is depressed into 0.6 ~ 1.2mm thickness with tobacco stem flattener, chopping is wide Degree is 0.1 ~ 0.5mm.

(7) stem feeds: the dedicated feed liquid of stem being uniformly applied on stem, feed liquid applies ratio according to recipe requirements.

(8) stem is dry: stem being dried using air-flow, roller or fluid bed process, moisture control exists after drying 12%~14%。

(9) stem application: requiring according to cigarette composition, stem is mixed to be fitted in cigarette composition rolls.

The present invention has following prominent characteristics compared with prior art:

(1) only stalk is washed in setting immersion to needs to the present invention after high temperature high pressure process offal and screw press is dehydrated two processes i.e. Can, treated in the method offal tissue looseness, surface dry is without being adhered, convenient for pressure stalk and chopping, drying process stem Clustering phenomena significantly reduces.

(2) present invention is not related to enzyme preparation and chemical reagent, stem peace excessively with the pectin in physical method removal offal Full property is higher.

(3) pectin in part removal offal, i.e., just right removal part pectin, and the skeleton of offal will not be destroyed Structure is made broken few so that stem has preferable filling capacity in process.

(4) strong operability, washes stalk equipment and expeller device is common apparatus, easy to implement, is easy to carry out industry Change application.

To sum up, hard cabo expansion is kept its institutional framework loose by the present invention using high temperature and pressure, and in high temperature height Under the action of pressure, the long-chain pectin in offal is broken, and improves the dissolution rate of pectin.By high temperature and pressure expansion, washing Pectin content reduces in offal after squeezing, and the quality of stem is improved, and irritation, pungent sense mitigate, and makes in cigarette Increased with ratio, especially because the reduction of stem pectin content, alleviates roll banding of offal during subsequent pressure stalk and cut Glutinous knife phenomenon during silk, improves the processing quality and processing efficiency of stem.Present invention process is simple, strong operability, Effect is obvious, with good application prospect.

Detailed description of the invention

Fig. 1 is process flow chart of the invention.

Specific embodiment

The present invention is described in further detail below in conjunction with example, but is not intended to limit the present invention.