CN104273213A - Freeze-drying method of sliced fresh momordica grosvenori - Google Patents

Freeze-drying method of sliced fresh momordica grosvenori Download PDF

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Publication number
CN104273213A
CN104273213A CN201410445115.1A CN201410445115A CN104273213A CN 104273213 A CN104273213 A CN 104273213A CN 201410445115 A CN201410445115 A CN 201410445115A CN 104273213 A CN104273213 A CN 104273213A
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China
Prior art keywords
freeze
momordica grosvenori
drying
fructus momordicae
fresh fructus
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CN201410445115.1A
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Chinese (zh)
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刘樟艳
彭军
吕光政
陈元胜
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PUDOTEK Corp
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PUDOTEK Corp
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  • Medicines Containing Plant Substances (AREA)

Abstract

The invention discloses a freeze-drying method of sliced fresh momordica grosvenori. The method comprises the following steps: slicing selected high-quality and mature fresh momordica grosvenori with thickness of 1-2cm; removing water of the sliced fresh momordica grosvenori in a microwave water removing machine for 3-5min; and freeze-drying the momordica grosvenori in freeze-drying equipment after removing water, and sealing and packaging in a vacuum environment to obtain a finished product. The method disclosed by the invention can rapidly roast momordica grosvenori at low temperature, so as to preserve the nutritional ingredients of the fresh momordica grosvenori; meanwhile, the method is convenient to use as substitute tea of momordica grosvenori.

Description

A kind of freeze-drying method of fresh fructus momordicae sheet
Technical field
The present invention relates to momordica grosvenori tablets baking method, specifically a kind of freeze-drying method of fresh fructus momordicae sheet.
Background technology
Momordica grosvenori ( momordica grosvenori Swingle) be the fruit of perennial herb cucurbitaceous plant, it is the distinctive medicinal plant in Guangxi, containing abundant vitamin C (containing 400 ~ 500 milligrams in every 100 grams of fresh fruits) and glucoside, fructose, glucose, protein, lipid etc. in fruit, the traditional Chinese medical science is recorded Momordica grosvenori and is had the effect moistening the lung and relieve the cough, relax bowel.Momordica grosvenori, by one of health ministry resource product being defined as integration of drinking and medicinal herbs, enjoys the concern of people, has important potentiality to be exploited.
The storage life of new fresh fructus momordicae is shorter, is no more than 20 days.Processing method consumption manpower in existing document, the time is long, and the various technical indicator such as temperature is unstable, easily causes explosion in bake process, and has and ring fruit, burnt phenomenon really, easily causes waste.
The roasting mode that Momordica grosvenori recorded by current document has following several usually:
(1) tradition baking: the baking in folk tradition workshop is generally divided into three phases: the first stage is temperature-rise period: first by heating temperatures to 45-50 DEG C, and maintain 20-24h; Second stage, continues to be warmed up to 65-70 DEG C by temperature, and maintains 2-3 days; Phase III is the cooling constant temperature stage, Momordica grosvenori temperature is reduced to 55-60 DEG C, and maintains 2 days.Whole process at least needs 5 days; Because oven temperature is uneven, all need the baking oven reversing of position of upper, middle and lower every day, and the fruit case at edge and center is exchanged, and will stir one by one, whole fruit just can be made to be heated evenly; The mode of heating of baking oven is far-infrared baking case, electric baking case, charcoal or firewood baking box.
(2) Chinese patent CN1631273N discloses a kind of processing method of Momordica grosvenori, it is by the Lo Han Guo fruit of maturation, according to greatly, in, littlely be respectively charged into movable multi-layer stereoscopic fruit tray frame, fruit tray frame is advanced and has quirk, rotary fan, in the barn of double hanging type cycle flue, at burner hearth combustion faggot or coal, through quirk and flue by the air heat of barn, temperature is increased to 66 DEG C ± 6 DEG C, opening rotary fan makes the temperature in drying room reach uniformity, the steam vent of moisture in baking material through barn top is discharged by moving air, toast 48 ~ 55 hours, take out after cooling.
Disclosed in tradition baking and Chinese patent CN1631273N, a kind of mode of heating of Momordica grosvenori baking process is all the environment relying on circumference, with the radiation of heat or by the mode of hot-air convection, the surface of object is first heated, be then delivered to the inside of object by heat transfer.It is high that its shortcoming is mainly reflected in temperature, operates wayward, and the Momordica grosvenori toasted out mostly is pitchy, and pulp charing or partially carbonized, nutritional labeling suffers heavy damage.
(3) Chinese patent CN102125248A discloses a kind of method of microwave drying Momordica grosvenori, and it is cleaned by Momordica grosvenori, completes; Respectively at base of fruit place, Momordica grosvenori top, and corresponding areola place, bottom is each makes a call to an aperture; Momordica grosvenori after punching is put into microwave dryer, dry 8-10min under 2400-2500MHz or 915MHz, 50-60 DEG C condition; Then take out, be placed in 0-4 DEG C of condition borehole cooling 3-5min and repeat above drying, temperature-fall period 5-6 time.
(4) Chinese patent CN102224838A discloses a kind of preparation method of freeze-dried fructus momordicae, it chooses the fresh fructus momordicae that appearance is bottle green maturation, through completing, clear water cooling, punching, pre-freeze, freeze after, to deliver from godown obtained freeze-dried fructus momordicae after adopting Vacuum Freezing & Drying Technology to carry out drying.
Patent CN102125248A and patent CN102224838A adopts microwave and freeze drying respectively, it is current comparatively ideal baking method, baking time is short, temperature is low, Momordica grosvenori nutritional labeling is retained by major part, unfortunately: inconvenient during use, no matter be microwave or freeze-drying, the temperature vacuumizing to reduce aqueous vapor evaporation is all used in dry run, but under vacuum, Momordica grosvenori only has 2 apertures, aqueous vapor evaporation rate is greater than pore exhaust velocity, in arhat fruit caving, mineralization pressure is poor, because Momordica grosvenori fruit capsule is soft, cause the fruit capsule of Momordica grosvenori can tighten agglomerating, to such an extent as to be difficult to break into two with one's hands when edible, be inconvenient to make tea, amount also bad control simultaneously.
Several Momordica grosvenori baking method is all embody with dry fruit above, and the standard weighing Momordica grosvenori is the moisture content of dry fruit, does not consider that Momordica grosvenori is as aspects such as simple operations when the nutritive value of alternative tea and use.
Summary of the invention
The present invention is directed to the deficiency of existing baking Momordica grosvenori technology, a kind of freeze-drying method of fresh fructus momordicae sheet is disclosed, this method, at low temperature, quick baking Momordica grosvenori, keeps the nutritional labeling of fresh fructus momordicae to greatest extent, facilitates the alternative tea of Momordica grosvenori to use simultaneously.
The technical scheme realizing the object of the invention is:
The freeze-drying method of fresh fructus momordicae sheet of the present invention, specifically comprises the steps:
(1) choosing fruit:
To select the fresh fructus momordicae of high-quality maturation, remove sick fruit, bitter pill and broken fruit, the fresh fructus momordicae of high-quality is that green is slightly with a yellow, and fruit saccharification is complete, and each nutritional labeling is even, yellow green, and color and luster is good-looking;
(2) cut into slices:
Cut into slices by the fresh fructus momordicae chosen, slice thickness controls at 1-2cm, and section should not be crossed thin or blocked up, crosses in thin dry run frangible, is difficult to the integrality keeping momordica grosvenori tablets, and blocked up meeting moisture not easily evaporates, and affects dewatering time;
(3) complete:
By the fresh fructus momordicae after section, put into microwave de-enzyming machine and to complete 3-5min, according to the power of the weight adjustment microwave of momordica grosvenori tablets during microwave de-enzyming, make momordica grosvenori tablets reach the optimum state that completes;
(4) freezing, dry:
By the momordica grosvenori tablets completed, according to weight, be placed in freeze drying equipment, under the temperature conditions of-20 DEG C, pre-freeze 20 hours, is then evacuated to 30Pa, controls condenser temperature and is-50 DEG C, cold-trap freeze drying makes moisture constantly distil in 11 hours again, takes out after dry;
(5) pack
By the momordica grosvenori tablets vacuum sealed package that step (4) is made, get product.
The microwave power of described microwave de-enzyming machine is 100kw.
Described freeze drying equipment is prior art.
Compared with prior art, tool has the following advantages in the present invention:
1, appearance luster is good, mouthfeel is good.This method is by cutting into slices, completing and utilize freeze-drying to dewater, and realize low temperature fast dewatering, the Momordica grosvenori outward appearance baked and fresh fructus momordicae solid colour, pulp is snow-white, without the not mature taste of fresh fruit.
2, nutritional labeling retains complete.Compared with the Momordica grosvenori that the Momordica grosvenori of this method baking and prior art are toasted, sweet glycosides and total reducing sugar are all higher than the Momordica grosvenori that prior art is toasted.
3, baking time is short, simple to operate, and production efficiency is high.This method is by slicing treatment, and utilize freeze-drying dewatering type, under vacuum negative pressure condition, moisture evaporation rate improves greatly.
4, product is easy to use, and this method, by section, is packed separately, and the quantity adding fresh fructus momordicae sheet according to the water yield in use can be made tea and be drunk, and avoids whole fruit and all adds too sweet, and after part adds bad component and component, residue preserves difficult defect.
Detailed description of the invention
Below by embodiment, the invention will be further elaborated.
Embodiment 1
Choose the fresh fructus momordicae 50 kilograms of high-quality maturation, the Momordica grosvenori chosen is cut into slices, and slice thickness controls at 1-2cm.By the Momordica grosvenori after section, putting into power is 100kw microwave de-enzyming machine, complete after 3min and put into freeze drying Special baking tray, then load in freeze drying box-20 DEG C of pre-freezes 20 hours, then be evacuated down to 30Pa, control condenser temperature and be-50 DEG C, moisture is constantly distilled, take out after dry 11 hours, load vacuum bag vacuum packaging.
Embodiment 2
Choose the fresh fructus momordicae 75 kilograms of high-quality maturation, the Momordica grosvenori chosen is cut into slices, and slice thickness controls at 1-2cm.By the Momordica grosvenori after section, putting into power is 100kw microwave de-enzyming machine, complete after 5min and put into freeze drying Special baking tray, then load in freeze drying box-20 DEG C of pre-freezes 20 hours, then be evacuated down to 30Pa, control condenser temperature and be-50 DEG C, moisture is constantly distilled, take out after dry 11 hours, load vacuum bag vacuum packaging.
Application Example:
For the advantage of this method is described, applicant will pick up from the fresh fructus momordicae in same field, Gong Chengxianxi Ling Xiang Dao Ping village of Guilin City equally, by 2010 editions States Pharmacopoeia specifications, be 1.56% with the sweet glycosides V of high effective liquid chromatography for measuring sample Momordica grosvenori fruit, recording Momordica grosvenori Vitamin C content by titration is 0.53%.Sample is divided into 3 groups, compare with regard to Momordica grosvenori conventional baking method, freeze-drying punch method and freeze-drying microtomy respectively, often organize fresh fruit weight identical, experimental result is as follows:
1, cleaned by Momordica grosvenori, dry, be positioned over baking oven, temperature controls at 60 DEG C, toasts 175 hours.Dry fruit becomes sepia, and pulp is yellowish-brown, and recording moisture is 4.31%, and momordica glycoside V is 4.26%, and Vitamin C content is 0.028%.
2, Momordica grosvenori cleaned, dry, punching, to be positioned in freeze drying box-20 DEG C of pre-freezes 20 hours, to be evacuated down to 30Pa, condenser temperature-50 DEG C, to control temperature of heating plate, toast 15 hours.Dry fruit becomes yellow green, and pulp is white, and recording moisture is 3.35%, and momordica glycoside V is 6.28%, and Vitamin C content is 1.37%.
3, Momordica grosvenori cleaned, dry, section, to be positioned in freeze drying box-20 DEG C of pre-freezes 20 hours, to be evacuated down to 30Pa, condenser temperature-50 DEG C, to control temperature of heating plate, toast 11 hours.Dry fruit becomes yellow green, and pulp is white, and recording moisture is 3.41%, and momordica glycoside V is 6.30%, and Vitamin C content is 1.39%.
Experimental data is as following table:
? Conventional baking 1 Freeze-drying punching 2 Freeze-drying section 3
Appearance luster Sepia Yellow green Yellow green
Pulp colour Yellowish-brown White White
Baking time 175 hours 15 hours 11 hours
Dry fruit moisture 4.31% 3.35% 3.41%
Sweet glycosides V content 4.26% 6.28% 6.30%
Vitamin C content 0.028% 1.37% 1.39%

Claims (3)

1. a freeze-drying method for fresh fructus momordicae sheet, is characterized in that: it is that the fresh fructus momordicae of maturation is placed in freeze drying equipment fast dewatering, and its concrete drying means contains following steps:
(1) choosing fruit: the fresh fructus momordicae selecting high-quality maturation;
(2) cut into slices: cut into slices by the fresh fructus momordicae chosen, slice thickness controls at 1-2cm;
(3) complete: by the fresh fructus momordicae after section, putting into microwave power is that the microwave de-enzyming machine of 100kw completes 3-5min;
(4) freezing, dry: the momordica grosvenori tablets completed is placed into freeze drying in freeze drying equipment;
(5) pack: the momordica grosvenori tablets vacuum sealed package of step (4) being made, gets product.
2. freeze-drying method according to claim 1, it is characterized in that: the freeze drying described in step (4) is pre-freeze 20 hours under the temperature conditions of-20 DEG C, be evacuated to 30Pa, condenser temperature-50 DEG C, control condenser temperature and be-50 DEG C, cold-trap freeze drying makes moisture constantly distil in 11 hours again, takes out after dry.
3. with fresh fructus momordicae sheet prepared by freeze-drying method according to claim 1.
CN201410445115.1A 2013-09-06 2014-09-03 Freeze-drying method of sliced fresh momordica grosvenori Pending CN104273213A (en)

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CN201410445115.1A CN104273213A (en) 2013-09-06 2014-09-03 Freeze-drying method of sliced fresh momordica grosvenori

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Cited By (7)

* Cited by examiner, † Cited by third party
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CN105995736A (en) * 2016-07-19 2016-10-12 陈素云 Method for preparing freeze-dried superfine powder of siraitia grosvenorii
CN106070553A (en) * 2016-07-19 2016-11-09 陈素云 A kind of freeze-dried fructus momordicae and preparation method thereof
CN106136129A (en) * 2016-07-19 2016-11-23 陈素云 A kind of Momordica grosvenori drying process and the Momordica grosvenori dry product being prepared by this technique
CN106212644A (en) * 2016-07-19 2016-12-14 陈素云 A kind of process preparing Fructus Momordicae freeze-drying tablet
CN106212643A (en) * 2016-07-19 2016-12-14 陈素云 A kind of whole dried fruits drying process of Fructus Momordicae
CN108991330A (en) * 2018-06-27 2018-12-14 广西驰胜农业科技有限公司 A kind of Siraitia grosvenorii medicine materical crude slice and its preparation method and application
CN114009541A (en) * 2021-11-03 2022-02-08 广西壮族自治区亚热带作物研究所(广西亚热带农产品加工研究所) Passion fruit tea and processing method thereof

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CN100364446C (en) * 2005-01-28 2008-01-30 蒋向军 Fresh mangosteen powder and its prepn process
JP5597811B2 (en) * 2010-05-07 2014-10-01 長興実業株式会社 Powdered sweetener containing rahan fruit extract powder and reduced indigestible dextrin and method for producing the rahan fruit extract powder
CN102125249B (en) * 2010-11-22 2012-11-07 桂林莱茵生物科技股份有限公司 Drying method of momordica grosvenori and momordica grosvenori obtained by using same
CN102224838B (en) * 2011-05-13 2012-12-05 广西恩度高科技股份有限公司 Preparation method of freeze-dried fructus momordicae
CN102716348B (en) * 2012-07-04 2014-07-30 上海玉成干燥设备有限公司 Method for preparing superfine rhizoma gastrodiae powder by vacuum freeze drying

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105995736A (en) * 2016-07-19 2016-10-12 陈素云 Method for preparing freeze-dried superfine powder of siraitia grosvenorii
CN106070553A (en) * 2016-07-19 2016-11-09 陈素云 A kind of freeze-dried fructus momordicae and preparation method thereof
CN106136129A (en) * 2016-07-19 2016-11-23 陈素云 A kind of Momordica grosvenori drying process and the Momordica grosvenori dry product being prepared by this technique
CN106212644A (en) * 2016-07-19 2016-12-14 陈素云 A kind of process preparing Fructus Momordicae freeze-drying tablet
CN106212643A (en) * 2016-07-19 2016-12-14 陈素云 A kind of whole dried fruits drying process of Fructus Momordicae
CN108991330A (en) * 2018-06-27 2018-12-14 广西驰胜农业科技有限公司 A kind of Siraitia grosvenorii medicine materical crude slice and its preparation method and application
CN114009541A (en) * 2021-11-03 2022-02-08 广西壮族自治区亚热带作物研究所(广西亚热带农产品加工研究所) Passion fruit tea and processing method thereof
CN114009541B (en) * 2021-11-03 2024-02-13 广西壮族自治区亚热带作物研究所(广西亚热带农产品加工研究所) Passion fruit tea and processing method thereof

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