CN106382791A - Efficient browning-inhibiting apple pomace drying method - Google Patents

Efficient browning-inhibiting apple pomace drying method Download PDF

Info

Publication number
CN106382791A
CN106382791A CN201610762133.1A CN201610762133A CN106382791A CN 106382791 A CN106382791 A CN 106382791A CN 201610762133 A CN201610762133 A CN 201610762133A CN 106382791 A CN106382791 A CN 106382791A
Authority
CN
China
Prior art keywords
pomace
drying
steam
hot air
apple pomace
Prior art date
Application number
CN201610762133.1A
Other languages
Chinese (zh)
Inventor
黄小丽
肖旭霖
许伟
谢星
郭玉蓉
Original Assignee
陕西师范大学
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 陕西师范大学 filed Critical 陕西师范大学
Priority to CN201610762133.1A priority Critical patent/CN106382791A/en
Publication of CN106382791A publication Critical patent/CN106382791A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/02Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air

Abstract

The invention discloses an efficient browning-inhibiting apple pomace drying method. The method comprises the following steps: drying fresh high-water-content apple pomace by using over-hot steam to remove part of water at first; and then drying the apple pomace with hot air to reduce the water content of the apple pomace until the apple pomace can be stored safely. By the drying method, serious browning of the apple pomace is avoided, drying rate is high, energy consumption is low, the apple pomace can be continuously treated on a large scale, functional components such as pectin can be extracted from the obtained high-quality apple pomace, or after being pulverized, the obtained high-quality apple pomace can be directly used as pastries and bread base materials or additives to improve content of dietary fibers and enrich flavors, the problem that fresh pomace pollutes the environment is solved well, meanwhile, economic value of pomace by-products is increased, and a good processing channel is provided for comprehensive development and utilization of the fresh pomace.

Description

A kind of pomace highly effective drying method of Restrain browning
Technical field
The invention belongs to marc technical field of drying is and in particular to a kind of pomace highly effective drying method of Restrain browning.
Background technology
Chinese apple cultivated area and yield all rank first in the world.2010, up to 33,260,000 tons of China's apple production, account for The 50% of Gross World Product.Meanwhile, the AJC yield of China also occupies first place in the world, and consequent side-product marc surpasses Cross 1,000,000 tons.Fresh fruit slag water content is high, and wet basis moisture content is 70%~80%, and rich in carbohydrate, crude protein, thick Fat, vitamin, mineral etc..Fresh fruit slag, as processed in time, easily grows putrefaction bacteria, produces acid smell, Polluted Soil Ground and water source etc..Marc is dried and not only can solve these above-mentioned problems, storage life can also be extended, be readily transported.
Pomace dry powder can extract useful component such as pectin, polyphenol substance, dietary fiber etc., and pomace dry powder also can be direct As animal feed or cake base material.Apple grunt slag dry powder, as cake base material, can increase the crude fiber content of cake, be conducive to Intestinal digestion and wriggling, are suitable to various people and eat, and can increase cake local flavor.
Fresh apple slag water content is high, stickiness is big, oxidizable brown stain.Done using the pomace that traditional hot air drying obtains Powder brown stain is serious, affects aesthetic quality;And drying time is long, high energy consumption.Accordingly, it would be desirable to the drying and dehydrating for low value-added marc Find the feasible drying meanss of an economic and technical.
At present, marc is dried conventional dried medium hot-air, flue gas or superheated steam, and drying equipment is again with rotating cylinder Based on formula, drum-type drying equipment and the blade drying equipment with agitating function.Hot-air is directly contacted with marc, marc brown stain Seriously, affect its organoleptic quality, and the impact marc quality safety such as dust is had using flue gas drying.However, The method of existing superheat steam drying pomace at present, superheated steam often as heating medium, is not directly connect with wet stock Touch, the heat that superheated steam carries passes to high-moisture marc by way of the interlayer wall of drying equipment is with heat conduction.Such Drying mode needs to coordinate evacuation, could alleviate the serious brown stain of marc;And adopt vacuum drying high humidity marc, overlong time, Marc brown stain is still very serious.
Chinese patent CN2605542Y discloses a kind of rotary pomace drying meanss, and the method is situated between with hot-air for heating Matter, hot-air is sprayed by the fixed nozzle of central shaft, contacts with wet marc, the secondary utilization of humid air waste heat recovery of generation. Marc drying equipment disclosed in this patent, pomace brown stain is not preferably processed.
Li Xiubing etc. discloses a kind of new marc drying equipment, and this equipment is in Chinese invention patent CN2605542Y On the basis of carry out perfect, using superheated steam be heating medium, indirectly to marc heat, devise secondary steam utilize, improve The thermal efficiency is dried;And combine fill backward technology, solve the problems, such as that marc is dried glutinous wall.The method is as heating medium using steam, Heat is still to pass to wet stock after heat-conducting mode passes to equipment wall surface again, and the efficiency of heating surface is still low, when being totally dried Between longer.
Several drying meanss above, are all to be heated to pomace using indirect heating manner, the marc dry powder brown stain obtaining Seriously, and drying time is long.
Content of the invention
The technical problem to be solved is to overcome above-mentioned the deficiencies in the prior art, provides one kind can improve color and luster Pomace highly effective drying method.
The technical scheme that solution above-mentioned technical problem is adopted is made up of following step:
1st, superheat steam drying
After squeezing the juice, fresh apple slag adopts superheat steam drying is 60%~65% to marc water content, and described is overheated The pressure of steam is 101.3kPa, and vapor (steam) temperature is 140~170 DEG C, and steam flow rate is 2.0~6.0m/s.
2nd, hot air drying
By the pomace after superheat steam drying pressure for hot air drying under 101.3kPa to water content be down to 7% with Under, the temperature of described hot air drying is 60~70 DEG C, and wind speed is 1.0~3.0m/s.
3rd, pulverize, sieve
By the pomace mechanical activation comminution after hot air drying, cross 60 mesh sieves, obtain pomace dry powder.
In above-mentioned steps 1, the vapor (steam) temperature of preferably superheated steam is 150~160 DEG C, steam flow rate is 5.0~6.0m/s.
In above-mentioned steps 1, the layer thickness of further preferred fresh apple slag is 6~10mm.
In above-mentioned steps 2, the temperature of preferably hot air drying is 60~70 DEG C, and wind speed is 1.5~2.5m/s.
Beneficial effects of the present invention are as follows:
1st, the present invention is dried pomace using the method for superheated steam joint hot air drying, first passes through superheated steam direct Contact with fresh apple slag, realize efficiently, uniformly heating and fast dewatering, duricrust will not be formed, and no oxygen exists, it is to avoid Pomace brown stain, and enzyme denaturing bactericidal action can be played, pomace dry powder is preserved and plays beneficial effect.Then adopt common hot blast It is dried, it is to avoid sugar content higher marc caramelization at high temperature.
2nd, the present invention be dried pomace method have the characteristics that efficiently, energy-saving and environmental protection, be suitable for juice production enterprise produce Raw a large amount of Fructus Mali pumilae Slag treatment.Compared with existing at present single hot air drying (drum-type, drum-type drying equipment), the present invention Processing method very short for drying time, the superheat steam drying time be 8~12 minutes, hot-wind-drying time be 60~80 minutes, Total time is less than 100 minutes, saves drying time about 50% than traditional heat-wind circulate drying, and superheated steam latent heat is easy to Recycle.
3rd, the pomace dry powder color that drying meanss of the present invention obtain is shallower, effectively inhibits pomace brown stain, acquisition Dry powder chromatic value a, b, c are all low for pomace, pectin extraction average yield about 9.3%.
4th, the inventive method processing cost is cheap, is suitable for low value-added agricultural byproducts dried, can batch, at scale Reason fruit juice factory produces a large amount of marcs producing, and improves the utilization of resources, has energy-saving and emission-reduction, the economic advantages of low cost, can be enterprise Industry creates economic benefit, is particularly suitable high hygroscopic water marc scale dried.
Specific embodiment
With reference to embodiment, the present invention is described in more detail, but protection scope of the present invention is not limited only to these in fact Apply example.
Embodiment 1
1st, superheat steam drying
The fresh apple slag (containing skin, sarcocarp, seed, water content is 78.5%) producing after fruit juice enterprise is squeezed the juice is using overheated Steam drying, the pressure of superheated steam is 101.3kPa, and vapor (steam) temperature is 150 DEG C, and steam flow rate is 5.0m/s, and drying time is 10 minutes, after being dried, the water content of pomace was 63.1%.
2nd, hot air drying
Pomace after superheat steam drying is hot air drying under 101.3kPa in pressure, the temperature of hot air drying is 70 DEG C, wind speed is 1.5m/s, and drying time is 60 minutes, and the water content of pomace is down to 4.1% from 63.1%.
3rd, pulverize, sieve
By the pomace mechanical activation comminution after hot air drying, cross 60 mesh sieves, obtain pomace dry powder, using clean hermetic bag Hold pomace dry powder, preserve in shady place room temperature.
Embodiment 2
1st, superheat steam drying
The fresh apple slag (containing skin, sarcocarp, seed, water content is 81.2%) producing after fruit juice enterprise is squeezed the juice is using overheated Steam drying, the pressure of superheated steam is 101.3kPa, and vapor (steam) temperature is 160 DEG C, and steam flow rate is 5.0m/s, and drying time is 11 minutes, after being dried, the water content of pomace was 63.0%.
2nd, hot air drying
Pomace after superheat steam drying is hot air drying under 101.3kPa in pressure, the temperature of hot air drying is 70 DEG C, wind speed is 1.5m/s, and drying time is 70 minutes, and the water content of pomace is down to 3.8% from 63.0%.
3rd, pulverize, sieve
By the pomace mechanical activation comminution after hot air drying, cross 60 mesh sieves, obtain pomace dry powder, using clean hermetic bag Hold pomace dry powder, preserve in shady place room temperature.
Embodiment 3
1st, superheat steam drying
The fresh apple slag (containing skin, sarcocarp, seed, moisture content is 81.1%) producing after fruit juice enterprise is squeezed the juice is using overheated Steam drying, the pressure of superheated steam is 101.3kPa, and vapor (steam) temperature is 155 DEG C, and steam flow rate is 6.0m/s, and drying time is 9 minutes, after being dried, the water content of pomace was 61.3%.
2nd, hot air drying
Pomace after superheat steam drying is hot air drying under 101.3kPa in pressure, the temperature of hot air drying is 70 DEG C, wind speed is 1.5m/s, and drying time is 60 minutes, and the water content of pomace is down to 3.5% from 61.3%.
3rd, pulverize, sieve
By the pomace mechanical activation comminution after hot air drying, cross 60 mesh sieves, obtain pomace dry powder, using clean hermetic bag Hold pomace dry powder, preserve in shady place room temperature.
Comparative example
The fresh apple slag (containing skin, sarcocarp, seed, water content is 81.1%) producing after fruit juice enterprise is squeezed the juice in pressure is Hot air drying under 101.3kPa, the temperature of hot air drying is 70 DEG C, and wind speed is 1.5m/s, and drying time is 270 minutes, pomace Moisture content be down to 4.3% from 81.1%, the pomace mechanical activation comminution after hot air drying crosses 60 mesh sieves, obtains pomace and do Powder, holds pomace dry powder using clean hermetic bag, preserves in shady place room temperature.
To above-described embodiment 1~3 and comparative example 1, the pomace dry powder after room temperature preserves 1 month in the cool enters inventor Row quality evaluation, the results are shown in Table 1.
Table 1
From the data in table 1, pomace dry powder chromatic value a, b, c that embodiment 1~3 obtains is below comparative example 1 The sample obtaining, and average brightness value L is also low, pomace dry powder pectin extraction average yield is also compared with comparative example 1 sample Higher.Illustrate that pomace brown stain is relieved, that is, the inventive method can preferably solve the problems, such as that pomace is dried brown stain, And pectin averagely to extract yield higher.

Claims (4)

1. a kind of pomace highly effective drying method of Restrain browning is it is characterised in that it is made up of following step:
(1) superheat steam drying
After squeezing the juice, fresh apple slag adopts superheat steam drying to marc water content is 60%~65%, described superheated steam Pressure be 101.3kPa, vapor (steam) temperature be 140~170 DEG C, steam flow rate be 2.0~6.0m/s;
(2) hot air drying
Pomace after superheat steam drying is down to less than 7% in pressure for hot air drying under 101.3kPa to water content, institute The temperature of the hot air drying stated is 60~70 DEG C, and wind speed is 1.0~3.0m/s;
(3) pulverize, sieve
By the pomace mechanical activation comminution after hot air drying, cross 60 mesh sieves, obtain pomace dry powder.
2. Restrain browning according to claim 1 pomace drying meanss it is characterised in that:In step (1), described Superheated steam pressure be 101.3kPa, vapor (steam) temperature be 150~160 DEG C, steam flow rate be 5.0~6.0m/s.
3. Restrain browning according to claim 1 pomace drying meanss it is characterised in that:In step (2), described Hot air drying temperature be 60~70 DEG C, wind speed be 1.5~2.5m/s.
4. the Restrain browning according to claims 1 to 3 any one pomace drying meanss it is characterised in that:Described The layer thickness of fresh apple slag is 6~10mm.
CN201610762133.1A 2016-08-29 2016-08-29 Efficient browning-inhibiting apple pomace drying method CN106382791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610762133.1A CN106382791A (en) 2016-08-29 2016-08-29 Efficient browning-inhibiting apple pomace drying method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610762133.1A CN106382791A (en) 2016-08-29 2016-08-29 Efficient browning-inhibiting apple pomace drying method

Publications (1)

Publication Number Publication Date
CN106382791A true CN106382791A (en) 2017-02-08

Family

ID=57937791

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610762133.1A CN106382791A (en) 2016-08-29 2016-08-29 Efficient browning-inhibiting apple pomace drying method

Country Status (1)

Country Link
CN (1) CN106382791A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108522938A (en) * 2018-04-18 2018-09-14 福建农林大学 A kind of fresh-keeping method for preserving of Roselle
WO2020027683A1 (en) 2018-08-03 2020-02-06 Institut Za Opstu I Fizicku Hemiju A.D. Method for producing gluten-free flour made of apple pomace

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1307830A (en) * 2001-02-23 2001-08-15 崔永江 Apple powder producing process and apple leftover feed compounding process
CN1385099A (en) * 2002-04-25 2002-12-18 海南盈山香蕉产业有限公司 Brown stain prevention technology in deeply-processing banana
CN1686006A (en) * 2005-04-22 2005-10-26 江南大学 Thermo scalding pretreatment method for preventing red bayberry juice from decolourizing during storage
CN1706259A (en) * 2004-06-09 2005-12-14 珍奥集团股份有限公司 Method of preventing oxidation and browning of yacon in processing
CN101991070A (en) * 2010-10-22 2011-03-30 陕西科技大学 Color protection and combined drying method of apple chips
CN102326648A (en) * 2011-06-27 2012-01-25 秀山盛达农业开发有限公司 Production method of wild honeysuckle flower tea
CN102353236A (en) * 2011-07-25 2012-02-15 中国农业大学 Rapid drying method for honeysuckles
CN102726510A (en) * 2012-07-19 2012-10-17 福建农林大学 Sulfur-free color protection method for controlling browning of dried leechee and longan pulps
CN103404941A (en) * 2013-07-20 2013-11-27 福建农林大学 Superheated steam and cold air combined drying method for abalones or sea cucumbers
CN103609665A (en) * 2013-11-20 2014-03-05 中国农业科学院农产品加工研究所 Preservation method of colocasia esculenta
CN105029386A (en) * 2015-08-20 2015-11-11 全国供销合作总社济南果蔬华德公司 Processing method of flammulina velutipes mushroom root powder with improved color and luster

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1307830A (en) * 2001-02-23 2001-08-15 崔永江 Apple powder producing process and apple leftover feed compounding process
CN1385099A (en) * 2002-04-25 2002-12-18 海南盈山香蕉产业有限公司 Brown stain prevention technology in deeply-processing banana
CN1706259A (en) * 2004-06-09 2005-12-14 珍奥集团股份有限公司 Method of preventing oxidation and browning of yacon in processing
CN1686006A (en) * 2005-04-22 2005-10-26 江南大学 Thermo scalding pretreatment method for preventing red bayberry juice from decolourizing during storage
CN101991070A (en) * 2010-10-22 2011-03-30 陕西科技大学 Color protection and combined drying method of apple chips
CN102326648A (en) * 2011-06-27 2012-01-25 秀山盛达农业开发有限公司 Production method of wild honeysuckle flower tea
CN102353236A (en) * 2011-07-25 2012-02-15 中国农业大学 Rapid drying method for honeysuckles
CN102726510A (en) * 2012-07-19 2012-10-17 福建农林大学 Sulfur-free color protection method for controlling browning of dried leechee and longan pulps
CN103404941A (en) * 2013-07-20 2013-11-27 福建农林大学 Superheated steam and cold air combined drying method for abalones or sea cucumbers
CN103609665A (en) * 2013-11-20 2014-03-05 中国农业科学院农产品加工研究所 Preservation method of colocasia esculenta
CN105029386A (en) * 2015-08-20 2015-11-11 全国供销合作总社济南果蔬华德公司 Processing method of flammulina velutipes mushroom root powder with improved color and luster

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108522938A (en) * 2018-04-18 2018-09-14 福建农林大学 A kind of fresh-keeping method for preserving of Roselle
WO2020027683A1 (en) 2018-08-03 2020-02-06 Institut Za Opstu I Fizicku Hemiju A.D. Method for producing gluten-free flour made of apple pomace

Similar Documents

Publication Publication Date Title
CN103584234B (en) Preparation method of mango juice
CN103396245B (en) Pleurotus cornucopiae cultivation material compatibility and production method of pleurotus cornucopiae cultivation material
CN103636822B (en) Production method of aciculiform black tea
CN100435657C (en) Method of improving comprehensive performance of vegetable paper
CN102181319B (en) Oil making method based on lower-moisture enzymatic auxiliary cold pressing
CN103815141B (en) Folium Eucommiae fodder additives and its preparation method
CN101617787B (en) Process for continuously extracting a plurality of products from highland barley
CN102599230B (en) Method for drying medlar
CN101649246A (en) Method for extracting and refining paeonia rockii seed oil
CN104095032B (en) The working method of dry bamboo shoots sheet
CN102160579B (en) Production technique of whole-seed preserved beancurd white blank
CN102177978B (en) Coix seed bran and use thereof
CN103444857B (en) A kind of method of source nitrogen hypoxemia heat pump drying apple flakes
CN103981010A (en) Process for preparing cold-pressed camellia oleosa seed oil by virtue of vacuum microwave enzyme method pretreatment
CN101439593B (en) Low-temperature processing technique for squeezing and refining pecan oil
CN105284987B (en) A kind of U.S. rattan fruit energy stick
CN102302165A (en) Fermented black garlic residue powder and preparation method thereof
CN102746938A (en) Method for preparing grease and protein from oil seed kernels by aqueous enzymatic method
CN102321160B (en) Production technology of sesame protein powder
CN103355616A (en) Processing method of health-care dried sinocalamus affinis bamboo shoot
CN101797037A (en) Method for producing water-soluble citrus peel fibres
CN103932077B (en) Process-controlled rapid fermentation processing method of pure strains of Liuyang salt black beans
CN103931776B (en) The production technology of okara powder
CN103504212B (en) Gelatinized millets with fast rehydration property and preparation method thereof
CN102888276B (en) Production method of pure physical original-odor oil tea seed oil

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20170208