CN105614777A - Preparation method of fine konjac powder of which fresh keeping is realized in non-thermal physical manner - Google Patents

Preparation method of fine konjac powder of which fresh keeping is realized in non-thermal physical manner Download PDF

Info

Publication number
CN105614777A
CN105614777A CN201510966441.1A CN201510966441A CN105614777A CN 105614777 A CN105614777 A CN 105614777A CN 201510966441 A CN201510966441 A CN 201510966441A CN 105614777 A CN105614777 A CN 105614777A
Authority
CN
China
Prior art keywords
konjaku powder
preparation
keeping
supercritical
food made
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510966441.1A
Other languages
Chinese (zh)
Inventor
汪超
胡开群
李章贵
李冬生
李红斌
石勇
李斌
徐宁
胡勇
周梦舟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hubei University of Technology
Original Assignee
Hubei University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hubei University of Technology filed Critical Hubei University of Technology
Priority to CN201510966441.1A priority Critical patent/CN105614777A/en
Publication of CN105614777A publication Critical patent/CN105614777A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/26Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
    • A23L3/263Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating with corpuscular or ionising radiation, i.e. X, alpha, beta or omega radiation
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/40Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution
    • A23L3/44Freeze-drying
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Toxicology (AREA)
  • Preparation Of Fruits And Vegetables (AREA)

Abstract

The invention relates to a preparation method of fine konjac powder of which fresh keeping is realized in a non-thermal physical manner. The problems of short fresh keeping period, poor mouth feel, poor color and low nutrient value of the conventional prepared fine konjac powder are solved. The preparation method is characterized in that a supercritical CO2 extraction method is adopted for extracting phenol substances in konjac, then the phenol substances are dried, crushed, disinfected and vacuum packaged so that the fine konjac powder products are obtained. The storage period of processed lotus roots is greatly prolonged, and the color, the fragrance and the taste of the lotus roots are excellent.

Description

A kind of preparation method of non-heating power physical fresh-keeping konjaku powder
Technical field
The invention belongs to field of food preservation, the preparation method being specifically related to a kind of non-heating power physical fresh-keeping konjaku powder.
Background technology
Rhizoma amorphophalli, makees again mill taro, and Araeceae mill taro belongs to herbaceos perennial, and ancient Chinese is also known as goblin taro, and Rhizoma amorphophalli just has the title of " removing intestinal sand " since ancient times. China's cultivated area is very wide, and raw Rhizoma amorphophalli can be slightly poisonous, and purposes is widely. Rhizoma amorphophalli is extended familys, the whole world nearly hundreds of, China just has more than 30 to plant. Through the research of nearly more than ten years, Rhizoma amorphophalli is made konjaku powder. Adopt the existing hundreds of kind of food that Rhizoma amorphophalli is made. And prove that it has the multiple functions such as blood fat reducing, blood sugar lowering, anti-cancer, relieving constipation after deliberation. Rhizoma amorphophalli contains glucomannan, is a kind of macromolecular compound, has very strong water absorption, inflatable 80-100 times of volume after water suction, easy digested absorption after food, and can adsorb cholesterol and bile acid, and to reducing blood pressure, reducing cardiovascular diseases's outbreak has certain effectiveness. Rhizoma amorphophalli is possibly together with water soluble dietary fiber, and this fiber is very effective to suppressing post-prandial glycemia to raise, thus konjaku powder and goods thereof are all the desirable antihypelipidemic foodstuffs of diabetics, can alleviate islets of langerhans burden after edible.
Now, nutritional character according to Rhizoma amorphophalli, existing correlational study person develops multiple Rhizoma amorphophalli antistaling process, for instance: Chinese Patent Application No. CN201010587925.2 " preparation method of a kind of Rhizoma amorphophalli canned food ", Chinese Patent Application No. CN201510097495.9 " a kind of high-purity ultramicro powder is without brownization konjaku powder preparation technology " etc. Research contents is all in the way of traditional heat sterilization or after enzyme denaturing, uses the mode of chemical substance immersion treatment, carries out fresh-keeping to Rhizoma amorphophalli. But, the quality of Rhizoma amorphophalli such as color, mouthfeel and nutritive value are inevitably impacted by the mode of heat sterilization, and chemical substance immersion treatment there is also food safety potential problem.
Summary of the invention
The invention aims to solve above-mentioned technical problem, it is provided that a kind of energy is fresh-keeping for a long time and keeps the color and luster of konjaku powder, mouthfeel and nutritive value, the preparation method reducing the non-heating power physical fresh-keeping konjaku powder of abnormal flavour.
Technical scheme is: pass through supercritical CO2Aldehydes matter in Rhizoma amorphophalli is extracted by the method extracted, then be dried, pulverize, the final vacuum that sterilizes is packaged to be konjaku powder goods.
Described supercritical CO2During extraction, using ethanol as entrainer.
Described Rhizoma amorphophalli is carrying out supercritical CO2Ultrasonic vibration is carried out with strengthening extraction effect while extracting.
Further, above-mentioned preparation method may comprise steps of:
(1), Icetemperature Storage: after being drained by konjac tuber selected, that clean, be housed in 1��1.5h under-1.5 �� 1 DEG C of condition;
(2), peeling section: after konjac tuber scrapes off one layer of casting skin on surface, be cut into the thick thin slice of 1��1.5cm;
(3), extract: weigh above-mentioned slice food made from Amorphophallus rivieri and load barrel, then put into and extraction kettle carries out supercritical CO2Extracting, slective extraction temperature is 38��45 DEG C, extracting pressure 9��15MPa, separation temperature 38��45 DEG C, extraction time 30��60min, CO2Flow 4��8L/min, entrainer is the ethanol of molar fraction 4��6%, and consumption is the 5��10% of weighed slice food made from Amorphophallus rivieri quality; At supercritical CO2While extracting, slice food made from Amorphophallus rivieri is carried out ultrasonic vibration with strengthening extraction effect;
(4), lyophilization: the slice food made from Amorphophallus rivieri after above-mentioned process is carried out lyophilization, makes dried slice food made from Amorphophallus rivieri water content be down to 7��9% (w/w);
(5), pulverize: use pulverizer that above-mentioned dried slice food made from Amorphophallus rivieri is crushed to the konjaku powder final vacuum packaging of 40��140 orders;
(6), the cold sterilization of irradiation: utilize60Co-gamma-rays carries out secondary vacuum after vacuum-packed konjaku powder is carried out radiation treatment and packs and get final product.
In described step (3), the supersonic frequency controlling described ultrasonic vibration is 14��20KHz, and ultrasonic power is 150��180W.
In described step (4), controlling drying chamber pressure 120��150Pa, temperature of heating plate is 38��42 DEG C, and rate of temperature fall is-0.2��-0.4 DEG C/min.
In described step (6), the cold sterilization dose of irradiation is 5��8kGy.
In step of the present invention (3), utilize supercritical CO2Aldehydes matter in slice food made from Amorphophallus rivieri can be extracted by extraction process, such that it is able to reduce Rhizoma amorphophalli brown stain, the color and luster of konjaku powder after protection powder process, it addition, the tertiary amine species such as trimethylamine also can through critical CO2Extract and synchronized to extract, thus effectively solving the abnormal flavour of konjaku powder; Selected extraction temperature is 38��45 DEG C, and temperature selects the too high destruction not only resulting in thermal sensitivity nutritional labeling, and selects higher temperature can improve supercritical CO to a certain extent2Extracting power, cause the loss of Rhizoma amorphophalli product nutrient substances; Selected extracting pressure is 9��15MPa, and extracting pressure improves and not only the anti-pressure ability of equipment proposed requirements at the higher level, and can improve supercritical CO2Extracting power, cause Rhizoma amorphophalli product nutrient substances to run off; Selected extraction time is 30��60min, and extraction time is unsuitable long, but to meet the supercritical CO of Rhizoma amorphophalli and extremely strong penetration2It is fully contacted, makes supercritical CO2Rhizoma amorphophalli deep layer can be penetrated; Selected CO2Flow is 4��8L/min, and flow selects excessive, both can cause CO2Waste, also can improve supercritical CO to a certain extent2Extracting power, cause the loss of Rhizoma amorphophalli product nutrient substances, but too low CO2Flow extracts the aldehydes matter poor effect in Rhizoma amorphophalli, and selected supersonic frequency is 14��20KHz, and ultrasonic power is 150��180W, it is possible to significantly improve supercritical CO2Extracting power.
Entrainer selects ethanol can improve the effect of extracting of aldehydes matter further, at supercritical CO2In extraction process, due to the addition of entrainer ethanol, in konjaku powder the tertiary amine species such as trimethylamine containing trace also can by partial extraction out, thus effectively having deviate from the abnormal flavour of konjaku powder. The alcoholic solution of molar fraction 4��6% is preferably used, and consumption is the 5��10% of weighed slice food made from Amorphophallus rivieri quality, too much can cause the loss of Rhizoma amorphophalli product nutrient substances, the very few aldehydes matter poor effect to extracting in Rhizoma amorphophalli.
Further, inventor has been surprisingly found that under study for action, at supercritical CO2Carry out ultrasonic vibration while extracting and can significantly improve supercritical CO2The effect of the tertiary amine species such as separating phenols material and trimethylamine, preferred supersonic frequency is 14��20KHz, ultrasonic power is 150��180W, ultrasonic device can be proposed higher requirement by too high supersonic frequency and power, and konjaku powder nutrient substance can be caused to run off, too low supersonic frequency and power are then to supercritical CO2The lifting of extracting power is not notable.
In described step (3), employ Icetemperature Storage, it is therefore an objective in order to suppress the activity of polyphenol oxidase in Rhizoma amorphophalli, it is to avoid enzymatic browning occurs Rhizoma amorphophalli in peeling and slicing processes, causes the decline of konjaku powder quality, it is ensured that end product quality.
In described step (4), have employed lyophilization and substitute traditional heat-force dry to remove the moisture content in slice food made from Amorphophallus rivieri, adopt lyophilization that the thermo-labile oxidizable composition of vitamin and linoleic acid etc. in konjaku powder can be enable to be retained as far as possible, Rhizoma amorphophalli is not only made well to maintain original flavor, and it can be avoided that the generation of non-enzymatic browning in dry run when high temperature is long, reduce moisture, it is also possible to play the purpose suppressing growth of microorganism simultaneously, extend storage period.
Beneficial effect:
(1) use the processing mode of non-heating power, it is possible to the well heat-sensitive ingredients in protection Rhizoma amorphophalli, keep the original flavor of food, improve the nutritive value of konjaku powder. (2) whole preparation process does not use chemical substance immersion treatment, it is to avoid the food safety potential problem that chemical substance is brought. (3) ultrasonic vibration and supercritical CO2Extraction is synchronously performed, than using merely supercritical CO2Extraction can more extract aldehydes matter in Rhizoma amorphophalli; it is effectively reduced the generation of Rhizoma amorphophalli brown stain further; protecting the color and luster of konjaku powder, additionally the tertiary amine species such as trimethylamine also can be extracted out to a certain extent, thus effectively having deviate from the abnormal flavour of konjaku powder. (4) freeze-dried process, it is possible to the generation of non-enzymatic browning in dry run when avoiding high temperature long, reduces moisture simultaneously, it is also possible to play the purpose suppressing growth of microorganism, extends storage period. (5) the cold sterilization processing of irradiation, not only makes konjaku powder well maintain original flavor, and after killing microorganisms, carries out vacuum packaging and can greatly improve the keeping quality of konjaku powder. (6) cold storing and fresh-keeping was up to more than 130 days under 1��5 DEG C of condition for konjaku powder prepared by the inventive method, and its color and luster, mouthfeel and nutritive value are effectively guaranteed, and have wide market application foreground.
Detailed description of the invention
Below in conjunction with specific embodiment, the technical scheme in the present invention is clearly and completely described.
Embodiment 1
(1) selecting and pre-treatment: select fresh nothing to rot, cover in order contents melted, without the konjac tuber of ageing tissues, the removal foreign material such as bud, root, to ensure color and luster and the purity of finished product.
(2), clean: with clear water, crust is cleaned, the foreign material such as the silt that particularly eye place is contained.
(3), Icetemperature Storage: after being drained by clean konjac tuber, be housed in 1h under-1 DEG C of condition.
(4), peeling section: by clean for konjac tuber anhydrous stainless steel knife, scrape off one layer of casting skin on surface, be then cut into the thick thin slice of 1.2cm.
(5), extract: weigh 55g slice food made from Amorphophallus rivieri and load barrel, then put into and extraction kettle carries out supercritical CO2Extracting, slective extraction temperature is 42 DEG C, extracting pressure 9MPa, separation temperature 42 DEG C, extraction time 30min, CO2Flow 6L/min, entrainer is the alcoholic solution of molar fraction 5%, and consumption is the 10% of weighed Rhizoma amorphophalli quality, carries out ultrasonic vibration enhanced supercritical CO simultaneously2Extraction process, supersonic frequency is 17KHz, and ultrasonic power is 180W.
(6), lyophilization: the slice food made from Amorphophallus rivieri after above-mentioned process carrying out lyophilization, controls drying chamber pressure 150Pa, temperature of heating plate is 38 DEG C, and rate of temperature fall is-0.4 DEG C/min. , make slice food made from Amorphophallus rivieri water content be down to 8% (w/w).
(7), pulverize: use pulverizer to be pulverized by the slice food made from Amorphophallus rivieri after above-mentioned lyophilizing.
(8), cyclonic separation and vibrations bolter separating treatment: sieve takes the konjaku powder of 40��140 orders, it is continuing with pulverizer more than the Rhizoma amorphophalli slag of 40 orders to pulverize, then then through cyclonic separation and vibrations bolter separating treatment, give over to other purposes less than 140 purposes, with PE plastic bag, the konjaku powder of 40��140 orders is carried out vacuum packaging.
(9), the cold sterilization of irradiation: utilize60Co-gamma-ray irradiation processes, and the cold sterilization dose of irradiation is 7kGy.
(10) outer package is carried out: use aluminium foil bag that the pre-packaged konjaku powder of above-mentioned process carries out vacuum packaging, and put a pouch being packaged with Fe powder deoxidizer by 0.5��1% (w/w) within a package.
(11), cold preservation: cold storing and fresh-keeping under 1 DEG C of condition.
Embodiment 2
(1) selecting and pre-treatment: select fresh nothing to rot, cover in order contents melted, without the konjac tuber of ageing tissues, the removal foreign material such as bud, root, to ensure color and luster and the purity of finished product.
(2), clean: with clear water, crust is cleaned, the foreign material such as the silt that particularly eye place is contained.
(3), Icetemperature Storage: after being drained by clean konjac tuber, be housed in 1h under-1.5 DEG C of conditions.
(4), peeling section: by clean for konjac tuber anhydrous stainless steel knife, scrape off one layer of casting skin on surface, be then cut into the thick thin slice of 1.5cm.
(5), extract: weighing 55g slice food made from Amorphophallus rivieri and load barrel, then put in extraction kettle, slective extraction temperature is 42 DEG C, extracting pressure 12MPa, separation temperature 42 DEG C, extraction time 45min, CO2Flow 6L/min, entrainer is the alcoholic solution of molar fraction 5%, and consumption is the 7% of weighed Rhizoma amorphophalli quality, carries out ultrasonic vibration enhanced supercritical CO simultaneously2Extraction process, supersonic frequency is 17KHz, and ultrasonic power is 170W.
(6), lyophilization: the slice food made from Amorphophallus rivieri after above-mentioned process carrying out lyophilization, controls drying chamber pressure 130Pa, temperature of heating plate is 40 DEG C, and rate of temperature fall is-0.3 DEG C/min. Slice food made from Amorphophallus rivieri water content is made to be down to 9% (w/w).
(7), pulverize: use pulverizer to be pulverized by the slice food made from Amorphophallus rivieri after above-mentioned lyophilizing.
(8), cyclonic separation and vibrations bolter separating treatment: sieve takes the konjaku powder of 40��140 orders, it is continuing with pulverizer more than the Rhizoma amorphophalli slag of 40 orders to pulverize, then then through cyclonic separation and vibrations bolter separating treatment, other purposes are given over to less than 140 purposes, use PE plastic bag by the konjaku powder of 40��140 orders, carry out vacuum packaging.
(9), the cold sterilization of irradiation: utilize60Co-gamma-ray irradiation processes, and the cold sterilization dose of irradiation is 6.5kGy.
(10) outer package is carried out: use aluminium foil bag that the pre-packaged konjaku powder of above-mentioned process carries out vacuum packaging, and put a pouch being packaged with Fe powder deoxidizer by 1% (w/w) within a package.
(11), cold preservation: cold storing and fresh-keeping under 1 DEG C of condition.
Embodiment 3
(1) selecting and pre-treatment: select fresh nothing to rot, cover in order contents melted, without the konjac tuber of ageing tissues, the removal foreign material such as bud, root, to ensure color and luster and the purity of finished product.
(2), clean: with clear water, crust is cleaned, the foreign material such as the silt that particularly eye place is contained.
(3), Icetemperature Storage: after being drained by clean konjac tuber, be housed in 1h under-1.5 DEG C of conditions.
(4), peeling section: by clean for konjac tuber anhydrous stainless steel knife, scrape off one layer of casting skin on surface, be then cut into the thick thin slice of 1.5cm.
(5), extract: weighing 55g slice food made from Amorphophallus rivieri and load barrel, then put in extraction kettle, slective extraction temperature is 40 DEG C, extracting pressure 12MPa, separation temperature 40 DEG C, extraction time 30min, CO2Flow 6L/min, entrainer is the alcoholic solution of molar fraction 5%, and consumption is the 7% of weighed Rhizoma amorphophalli quality, carries out ultrasonic vibration enhanced supercritical CO simultaneously2Extraction process, supersonic frequency is 17KHz, and ultrasonic power is 170W.
(6), lyophilization: the slice food made from Amorphophallus rivieri after above-mentioned process carrying out lyophilization, controls drying chamber pressure 135Pa, temperature of heating plate is 40 DEG C, and rate of temperature fall is-0.3 DEG C/min, makes slice food made from Amorphophallus rivieri water content be down to 9% (w/w).
(7), pulverize: use pulverizer to be pulverized by the slice food made from Amorphophallus rivieri after above-mentioned lyophilizing.
(8), cyclonic separation and vibrations bolter separating treatment: sieve takes the konjaku powder of 40��140 orders, it is continuing with pulverizer more than the Rhizoma amorphophalli slag of 40 orders to pulverize, then then through cyclonic separation and vibrations bolter separating treatment, other purposes are given over to less than 140 purposes, use PE plastic bag by the konjaku powder of 40��140 orders, carry out vacuum packaging.
(9), the cold sterilization of irradiation: utilize60Co-gamma-ray irradiation processes, and the cold sterilization dose of irradiation is 6.5kGy.
(10), outer package is carried out: use aluminium foil bag that the pre-packaged konjaku powder of above-mentioned process carries out vacuum packaging, and put a pouch being packaged with Fe powder deoxidizer by 1% (w/w) within a package.
(11), cold preservation: cold storing and fresh-keeping under 1 DEG C of condition.
Embodiment 4
(1) selecting and pre-treatment: select fresh nothing to rot, cover in order contents melted, without the konjac tuber of ageing tissues, the removal foreign material such as bud, root, to ensure color and luster and the purity of finished product.
(2), clean: with clear water, crust is cleaned, the foreign material such as the silt that particularly eye place is contained.
(3), Icetemperature Storage: after being drained by clean konjac tuber, be housed in 1h under-2.5 DEG C of conditions.
(4), peeling section: by clean for konjac tuber anhydrous stainless steel knife, scrape off one layer of casting skin on surface, be then cut into the thick thin slice of 1cm.
(5), extract: weighing 55g slice food made from Amorphophallus rivieri and load barrel, then put in extraction kettle, slective extraction temperature is 38 DEG C, extracting pressure 9MPa, separation temperature 38 DEG C, extraction time 30min, CO2Flow 4L/min, entrainer is the ethanol of molar fraction 4%, and consumption is the 5% of weighed Rhizoma amorphophalli quality, carries out ultrasonic vibration enhanced supercritical CO simultaneously2Extraction process, supersonic frequency is 14KHz, and ultrasonic power is 160W.
(6), lyophilization: the slice food made from Amorphophallus rivieri after above-mentioned process carrying out lyophilization, controls drying chamber pressure 120Pa, temperature of heating plate is 42 DEG C, and rate of temperature fall is-0.2 DEG C/min, makes slice food made from Amorphophallus rivieri water content be down to 9% (w/w).
(7), pulverize: use pulverizer to be pulverized by the slice food made from Amorphophallus rivieri after above-mentioned lyophilizing.
(8), cyclonic separation and vibrations bolter separating treatment: sieve takes the konjaku powder of 40��140 orders, it is continuing with pulverizer more than the Rhizoma amorphophalli slag of 40 orders to pulverize, then then through cyclonic separation and vibrations bolter separating treatment, other purposes are given over to less than 140 purposes, use PE plastic bag by the konjaku powder of 40��140 orders, carry out vacuum packaging.
(9), the cold sterilization of irradiation: utilize60Co-gamma-ray irradiation processes, and the cold sterilization dose of irradiation is 5kGy.
(10), outer package is carried out: use aluminium foil bag that the pre-packaged konjaku powder of above-mentioned process carries out vacuum packaging, and put a pouch being packaged with Fe powder deoxidizer by 1% (w/w) within a package.
(11), cold preservation: cold storing and fresh-keeping under 1 DEG C of condition.
Comparison example 1: do not use supercritical CO2Extraction processes
(1) selecting and pre-treatment: select fresh nothing to rot, cover in order contents melted, without the konjac tuber of ageing tissues, the removal foreign material such as bud, root, to ensure color and luster and the purity of finished product.
(2), clean: with clear water, crust is cleaned, the foreign material such as the silt that particularly eye place is contained.
(3), Icetemperature Storage: after being drained by clean konjac tuber, be housed in 1.5h under-0.5 DEG C of condition.
(4), peeling section: by clean for konjac tuber anhydrous stainless steel knife, scrape off one layer of casting skin on surface, be then cut into the thick thin slice of 1.5cm.
(5), lyophilization: the slice food made from Amorphophallus rivieri after above-mentioned process carrying out lyophilization, controls drying chamber pressure 150Pa, temperature of heating plate is 38 DEG C, and rate of temperature fall is-0.4 DEG C/min. , make slice food made from Amorphophallus rivieri water content be down to 8% (w/w).
(6), pulverize: use pulverizer to be pulverized by the slice food made from Amorphophallus rivieri after above-mentioned lyophilizing.
(7), cyclonic separation and vibrations bolter separating treatment: sieve takes the konjaku powder of 40��140 orders, it is continuing with pulverizer more than the Rhizoma amorphophalli slag of 40 orders to pulverize, then then through cyclonic separation and vibrations bolter separating treatment, other purposes are given over to less than 140 purposes, use PE plastic bag by the konjaku powder of 40��140 orders, carry out vacuum packaging.
(8), the cold sterilization of irradiation: utilize60Co-gamma-ray irradiation processes, and the cold sterilization dose of irradiation is 8kGy.
(9), outer package is carried out: use aluminium foil bag that the pre-packaged konjaku powder of above-mentioned process carries out vacuum packaging, and put a pouch being packaged with Fe powder deoxidizer by 1% (w/w) within a package.
(10), cold preservation: cold storing and fresh-keeping under 1 DEG C of condition.
Comparison example 2: use merely supercritical CO2Extraction processes
(1) selecting and pre-treatment: select fresh nothing to rot, cover in order contents melted, without the konjac tuber of ageing tissues, the removal foreign material such as bud, root, to ensure color and luster and the purity of finished product.
(2), clean: with clear water, crust is cleaned, the foreign material such as the silt that particularly eye place is contained.
(3), Icetemperature Storage: after being drained by clean konjac tuber, be housed in 1.5h under-0.5 DEG C of condition.
(4), peeling section: by clean for konjac tuber anhydrous stainless steel knife, scrape off one layer of casting skin on surface, be then cut into the thick thin slice of 1.5cm.
(5), extract: weighing 55g slice food made from Amorphophallus rivieri and load barrel, then put in extraction kettle, slective extraction temperature is 45 DEG C, extracting pressure 15MPa, separation temperature 45 DEG C, extraction time 60min, CO2Flow 8L/min, entrainer is the alcoholic solution of molar fraction 6%, and consumption is the 10% of weighed Rhizoma amorphophalli quality.
(6), lyophilization: the slice food made from Amorphophallus rivieri after above-mentioned process carrying out lyophilization, controls drying chamber pressure 150Pa, temperature of heating plate is 38 DEG C, and rate of temperature fall is-0.4 DEG C/min. , make slice food made from Amorphophallus rivieri water content be down to 8% (w/w).
(7), pulverize: use pulverizer to be pulverized by the slice food made from Amorphophallus rivieri after above-mentioned lyophilizing.
(8), cyclonic separation and vibrations bolter separating treatment: sieve takes the konjaku powder of 40��140 orders, it is continuing with pulverizer more than the Rhizoma amorphophalli slag of 40 orders to pulverize, then then through cyclonic separation and vibrations bolter separating treatment, other purposes are given over to less than 140 purposes, use PE plastic bag by the konjaku powder of 40��140 orders, carry out vacuum packaging.
(9), the cold sterilization of irradiation: utilize60Co-gamma-ray irradiation processes, and the cold sterilization dose of irradiation is 8kGy.
(10) outer package is carried out: use aluminium foil bag that the pre-packaged konjaku powder of above-mentioned process carries out vacuum packaging, and put a pouch being packaged with Fe powder deoxidizer by 1% (w/w) within a package.
(11), cold preservation: cold storing and fresh-keeping under 1 DEG C of condition.
Comparison example 3: do not use lyophilization and radiation sterilizing to process
(1) selecting and pre-treatment: select fresh nothing to rot, cover in order contents melted, without the konjac tuber of ageing tissues, the removal foreign material such as bud, root, to ensure color and luster and the purity of finished product.
(2), clean: with clear water, crust is cleaned, the foreign material such as the silt that particularly eye place is contained.
(3), Icetemperature Storage: after being drained by clean konjac tuber, be housed in 1h under-0.5 DEG C of condition.
(4), peeling section: by clean for konjac tuber anhydrous stainless steel knife, scrape off one layer of casting skin on surface, be then cut into the thick thin slice of 1.5cm.
(5), extract: weighing 55g slice food made from Amorphophallus rivieri and load barrel, then put in extraction kettle, slective extraction temperature is 45 DEG C, extracting pressure 15MPa, separation temperature 45 DEG C, extraction time 60min, CO2Flow 8L/min, entrainer is the alcoholic solution of molar fraction 6%, and consumption is the 10% of weighed Rhizoma amorphophalli quality, carries out ultrasonic vibration enhanced supercritical CO simultaneously2Extraction process, supersonic frequency is 20KHz, and ultrasonic power is 180W.
(6), pulverize: use pulverizer to be pulverized by the slice food made from Amorphophallus rivieri after above-mentioned lyophilizing.
(7), cyclonic separation and vibrations bolter separating treatment: sieve takes the konjaku powder of 40��140 orders, it is continuing with pulverizer more than the Rhizoma amorphophalli slag of 40 orders to pulverize, then then through cyclonic separation and vibrations bolter separating treatment, other purposes are given over to less than 140 purposes, use PE plastic bag by the konjaku powder of 40��140 orders, carry out vacuum packaging.
(8), outer package is carried out: use aluminium foil bag that the pre-packaged konjaku powder of above-mentioned process carries out vacuum packaging, and put a pouch being packaged with Fe powder deoxidizer by 1% (w/w) within a package.
(9), cold preservation: cold storing and fresh-keeping under 1 DEG C of condition.
After embodiment 1-4 and the comparative example 1-3 konjaku powder prepared is preserved 30 days at 1 DEG C, each embodiment randomly selects 3 samples and removes the PE plastic bag packaging of In Aluminium Foil Packing and the inside, then the whiteness value of 3 samples of color difference meter sampling and measuring is used, the additionally water content of 3 samples of sampling and measuring and trimethylamine content and total plate count, and average.
The experimental result of each case index of correlation of table 1

Claims (7)

1. the preparation method of a non-heating power physical fresh-keeping konjaku powder, it is characterised in that pass through supercritical CO2Aldehydes matter in Rhizoma amorphophalli is extracted by the method extracted, then be dried, pulverize, the final vacuum that sterilizes is packaged to be konjaku powder goods.
2. the preparation method of non-heating power physical fresh-keeping konjaku powder as claimed in claim 1, it is characterised in that described supercritical CO2During extraction, using ethanol as entrainer.
3. the preparation method of non-heating power physical fresh-keeping konjaku powder as claimed in claim 1 or 2, it is characterised in that described Rhizoma amorphophalli is carrying out supercritical CO2Ultrasonic vibration is carried out with strengthening extraction effect while extracting.
4. the preparation method of non-heating power physical fresh-keeping konjaku powder as claimed in claim 3, it is characterised in that comprise the following steps:
(1), Icetemperature Storage: after being drained by konjac tuber selected, that clean, be housed in 1��1.5h under-1.5 �� 1 DEG C of condition;
(2), peeling section: after konjac tuber scrapes off one layer of casting skin on surface, be cut into the thick thin slice of 1��1.5cm;
(3), extract: weigh above-mentioned slice food made from Amorphophallus rivieri and load barrel, then put into and extraction kettle carries out supercritical CO2Extracting, slective extraction temperature is 38��45 DEG C, extracting pressure 9��15MPa, separation temperature 38��45 DEG C, extraction time 30��60min, CO2Flow 4��8L/min, entrainer is the alcoholic solution of molar fraction 4��6%, and consumption is the 5��10% of weighed slice food made from Amorphophallus rivieri quality; At supercritical CO2While extracting, slice food made from Amorphophallus rivieri is carried out ultrasonic vibration with strengthening extraction effect;
(4), lyophilization: the slice food made from Amorphophallus rivieri after above-mentioned process is carried out lyophilization, makes dried slice food made from Amorphophallus rivieri water content be down to 7��9% (w/w);
(5), pulverize: use pulverizer that above-mentioned dried slice food made from Amorphophallus rivieri is crushed to the konjaku powder final vacuum packaging of 40��140 orders;
(6), the cold sterilization of irradiation: utilize60After vacuum-packed konjaku powder is carried out radiation treatment by Co-gamma-rays, secondary vacuum is packed and be get final product.
5. the preparation method of non-heating power physical fresh-keeping konjaku powder according to claim 4, it is characterised in that: in described step (3), the supersonic frequency controlling described ultrasonic vibration is 14��20KHz, and ultrasonic power is 150��180W.
6. the preparation method of non-heating power physical fresh-keeping konjaku powder according to claim 4, it is characterized in that: in described step (4), controlling drying chamber pressure 120��150Pa, temperature of heating plate is 38��42 DEG C, and rate of temperature fall is-0.2��-0.4 DEG C/min.
7. the preparation method of non-heating power physical fresh-keeping konjaku powder according to claim 4, it is characterised in that: in described step (6), the cold sterilization dose of irradiation is 5��8kGy.
CN201510966441.1A 2015-12-18 2015-12-18 Preparation method of fine konjac powder of which fresh keeping is realized in non-thermal physical manner Pending CN105614777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510966441.1A CN105614777A (en) 2015-12-18 2015-12-18 Preparation method of fine konjac powder of which fresh keeping is realized in non-thermal physical manner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510966441.1A CN105614777A (en) 2015-12-18 2015-12-18 Preparation method of fine konjac powder of which fresh keeping is realized in non-thermal physical manner

Publications (1)

Publication Number Publication Date
CN105614777A true CN105614777A (en) 2016-06-01

Family

ID=56030474

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510966441.1A Pending CN105614777A (en) 2015-12-18 2015-12-18 Preparation method of fine konjac powder of which fresh keeping is realized in non-thermal physical manner

Country Status (1)

Country Link
CN (1) CN105614777A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110089655A (en) * 2019-05-17 2019-08-06 四川食为天农业有限公司 A kind of Kiwi berry konjak solid beverage and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101015333A (en) * 2006-12-18 2007-08-15 江南大学 Olive comprehensive utilization method
CN103704421A (en) * 2013-12-13 2014-04-09 福州市东苹企业管理服务有限公司 Ultrasonic supercritical combined extraction technology for tea polyphenol

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101015333A (en) * 2006-12-18 2007-08-15 江南大学 Olive comprehensive utilization method
CN103704421A (en) * 2013-12-13 2014-04-09 福州市东苹企业管理服务有限公司 Ultrasonic supercritical combined extraction technology for tea polyphenol

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
叶维等: "魔芋精粉的护色及干燥加工工艺的研究进展", 《食品与发酵科技》 *
张宏路等: "魔芋加工增值三法", 《安徽农业》 *
陈夏娇,等: "《蔬菜加工新技术与营销》", 31 January 2012, 金盾出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110089655A (en) * 2019-05-17 2019-08-06 四川食为天农业有限公司 A kind of Kiwi berry konjak solid beverage and preparation method thereof
CN110089655B (en) * 2019-05-17 2022-07-22 四川食为天农业有限公司 Kiwi fruit and konjak solid beverage and preparation method thereof

Similar Documents

Publication Publication Date Title
KR101896994B1 (en) Soy sauce manufacturing methode using green onion and pickled shrimp and fish
CN107805576A (en) A kind of preparation method of flavored type fig wine
CN109673899A (en) A kind of preparation method of vinegar egg polypeptide beverage
CN107094933A (en) A kind of citron tea and its production and use
JP4977920B2 (en) Green leaf juice mixed liquid and green juice mixed powder manufacturing method, green leaf juice mixed liquid and green juice mixed powder, foods and drinks containing these, health foods, pharmaceuticals, quasi drugs, cosmetics
CN105614777A (en) Preparation method of fine konjac powder of which fresh keeping is realized in non-thermal physical manner
RU2365288C1 (en) Tinned peach compote production method
KR101853848B1 (en) Preparing of salt containing oriental melon lees and oriental melon lees salt obtained therefrom
CN107981125A (en) A kind of preparation method of high polyphenolic content haw juice
CN107836675A (en) A kind of jerusalem artichoke can and preparation method thereof
CN105558948A (en) Making method of non-thermal-power physical fresh-keeping potatoes
CN105595259A (en) Preparation method of Chinese yams in non-thermal physical fresh preservation
CN105105103A (en) Helvella leucopus pers fruiting body crude polysaccharides and method for producing highly processed products thereof
CN105519664A (en) Preparation method of Non-thermal physically preserved water chestnut
KR20190138910A (en) The method of vitamin C-used fermentation of Pineapple to enhance antioxidative effect
CN105379825B (en) A kind of preparation method of non-heating power physical fresh-keeping water chestnut
RU2389369C1 (en) Plum compote production method
RU2396871C1 (en) Preserved plum compote production method
CN115152835A (en) Method for preserving Dictyophora rubrovalvata by using melatonin
CN105581222A (en) Making method of non-thermal physical freshness-retaining whole sweet potato powder
JP2004254685A (en) Nasunine tea and method for producing the same
RU2416261C1 (en) Method for production of plum compote
RU2416263C1 (en) Method for production of sweet cherry compote
RU2371977C1 (en) Preserved plum compote production method
RU2410921C1 (en) Method for production of cornelian cherry compote

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20160601

RJ01 Rejection of invention patent application after publication