CN105076921A - Method for producing microcrystalline cellulose by utilizing leftovers of bamboo shoots - Google Patents
Method for producing microcrystalline cellulose by utilizing leftovers of bamboo shoots Download PDFInfo
- Publication number
- CN105076921A CN105076921A CN201510564848.1A CN201510564848A CN105076921A CN 105076921 A CN105076921 A CN 105076921A CN 201510564848 A CN201510564848 A CN 201510564848A CN 105076921 A CN105076921 A CN 105076921A
- Authority
- CN
- China
- Prior art keywords
- bamboo shoots
- microcrystalline cellulose
- pieces
- cellulose
- leftover bits
- 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
Links
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 85
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 85
- 241001330002 Bambuseae Species 0.000 title claims abstract description 85
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 85
- 239000011425 bamboo Substances 0.000 title claims abstract description 85
- 229920000168 Microcrystalline cellulose Polymers 0.000 title claims abstract description 44
- 235000019813 microcrystalline cellulose Nutrition 0.000 title claims abstract description 44
- 239000008108 microcrystalline cellulose Substances 0.000 title claims abstract description 42
- 229940016286 microcrystalline cellulose Drugs 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title abstract description 8
- 235000021190 leftovers Nutrition 0.000 title abstract 4
- 238000000034 method Methods 0.000 claims abstract description 38
- 235000010980 cellulose Nutrition 0.000 claims abstract description 35
- 229920002678 cellulose Polymers 0.000 claims abstract description 35
- 239000001913 cellulose Substances 0.000 claims abstract description 35
- 235000019658 bitter taste Nutrition 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000012153 distilled water Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000003094 microcapsule Substances 0.000 claims abstract description 12
- 238000004061 bleaching Methods 0.000 claims abstract description 10
- 239000008187 granular material Substances 0.000 claims abstract description 9
- 108010010803 Gelatin Proteins 0.000 claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims abstract description 8
- 229920000159 gelatin Polymers 0.000 claims abstract description 8
- 239000008273 gelatin Substances 0.000 claims abstract description 8
- 235000019322 gelatine Nutrition 0.000 claims abstract description 8
- 235000011852 gelatine desserts Nutrition 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims abstract description 8
- 238000009835 boiling Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 6
- 238000000967 suction filtration Methods 0.000 claims abstract description 5
- 235000019640 taste Nutrition 0.000 claims abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 235000010489 acacia gum Nutrition 0.000 claims description 6
- 239000001785 acacia senegal l. willd gum Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 235000013373 food additive Nutrition 0.000 claims description 5
- 239000002778 food additive Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 claims description 4
- 238000009776 industrial production Methods 0.000 claims description 4
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 4
- 239000007844 bleaching agent Substances 0.000 claims description 3
- 238000006555 catalytic reaction Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000029087 digestion Effects 0.000 claims description 3
- 239000011964 heteropoly acid Substances 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000005864 Sulphur Substances 0.000 claims description 2
- 235000010265 sodium sulphite Nutrition 0.000 claims description 2
- 239000003205 fragrance Substances 0.000 abstract description 11
- 238000006116 polymerization reaction Methods 0.000 abstract description 6
- 230000000593 degrading effect Effects 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 abstract description 2
- 230000007935 neutral effect Effects 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 235000013339 cereals Nutrition 0.000 description 8
- 229920005610 lignin Polymers 0.000 description 7
- 235000013305 food Nutrition 0.000 description 5
- 229920002488 Hemicellulose Polymers 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 235000013372 meat Nutrition 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000010902 straw Substances 0.000 description 3
- 241000609240 Ambelania acida Species 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005903 acid hydrolysis reaction Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000010905 bagasse Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DYUQAZSOFZSPHD-UHFFFAOYSA-N Phenylpropyl alcohol Natural products CCC(O)C1=CC=CC=C1 DYUQAZSOFZSPHD-UHFFFAOYSA-N 0.000 description 1
- 244000302661 Phyllostachys pubescens Species 0.000 description 1
- 235000003570 Phyllostachys pubescens Nutrition 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- -1 aromatic compound phenylpropyl alcohol alkane Chemical class 0.000 description 1
- 238000010504 bond cleavage reaction Methods 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 235000013325 dietary fiber Nutrition 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000007884 disintegrant Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229930182478 glucoside Natural products 0.000 description 1
- 208000014951 hematologic disease Diseases 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- 235000004213 low-fat Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 235000003563 vegetarian diet Nutrition 0.000 description 1
- 239000002916 wood waste Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Landscapes
- General Preparation And Processing Of Foods (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
The invention discloses a method for producing microcrystalline cellulose by utilizing leftovers of bamboo shoots. The method comprises the following steps: selecting unrotten leftovers of bamboo shoots free of mildew spots and peculiar smell such as bamboo shoot shell, aged bamboo shoot base, bamboo shoot skin and poor-quality bamboo shoots, cutting the washed leftovers of bamboo shoots into small uniform blocks, crushing the small uniform blocks into granules by utilizing a pulverizer, removing bitter taste, degrading with a high boiling solvent containing a small amount of a delignification catalyst to obtain cellulose with relatively high purity, rinsing thoroughly with distilled water, bleaching, separating solid matters, rinsing thoroughly cellulose with distilled water to be neutral, and finally performing suction filtration, drying, and ultrafine grinding to obtain the microcrystalline cellulose; in order to retain the fragrance of bamboo shoots, gelatin is taken as the raw material for the wall material to prepare microcapsules, therefore the fragrance of bamboo shoots is retained, and the taste of bamboo shoots is mellow and full in taste. After analysis, the size of microcrystalline cellulose is about 20-30 [mu]m, the degree of polymerization is about 80-130, and the degree of crystallinity is about 0.75-0.80, and the produced microcrystalline cellulose can meet the requirement.
Description
Technical field
The present invention relates to the processing method of bamboo shoot products, particularly utilize bamboo shoots leftover bits and pieces to produce the method for microcrystalline cellulose, belong to food processing technology field.
Background technology
Bamboo shoots are taken as " in dish treasure " in China from ancient times, its matter is tender delicious, containing abundant nutriment, as protein, amino acid, carbohydrate, fat, carrotene and multivitamin and mineral matter, content of cellulose is high, it can increase enterocinesia in intestines and promotion is digested and assimilated, and reduces human body to the absorption of fat, reduces the incidence of disease with high fat of blood diseases related.The complete bamboo shoots of high fine low fat, nutrition have the title of " dry frozen ground mountain delicacy ", " vegetarian diet first product ", deeply by modern people enjoy.
Bamboo shoots are vegetables that a kind of seasonality is stronger, and main production concentrates on 3-4 month in season, fresh-keeping, storage property is bad, keeping is easily rotted accidentally, are unfavorable for transporting for long-distance.In order to solve these contradiction, usually all to be processed into dry bamboo shoot or tank first-class product and selecting for people.But, bamboo shoot meat for making the bamboo shoot products such as bamboo shoot can, dry bamboo shoot in bamboo shoots only accounts for the comparatively small part of whole bamboo shoot body, for moso bamboo shoot, its bamboo shoot meat accounts for 30%, all the other are the leftover bits and pieces such as bamboo shoot head and bamboo shoot shell, and its ratio is up to 70%, and the most corresponding composition to bamboo shoot meat of nutrition and health care composition in these leftover bits and pieces not yet effectively utilized quite or lower slightly, if and deal with the pollution that will cause environment improperly, bring adverse effect to the life of people, production and health.Therefore, from bamboo shoots and industrial wood waste thereof, find the plant chemical ingredient with health-care efficacy or using value, exploitation high value-added product, and expand the purposes of other side, will the hot issue of bamboo shoots deep processing and utilization research and development be become.
Microcrystalline cellulose (microcrystallinecellulose, MCC) be a kind of with β-1, the linear molecule that 4 glucoside bonds are formed by connecting, by cellulose through acid hydrolysis to the flowed freely white of levelling off degree of polymerization (LOOP) or near-white pulverulent solids product.In recent years, microcrystalline cellulose is widely used in medicine, food and daily-use chemical industry industry, and conducts in-depth research in preparation method, character and structure.Chang Zuowei drug excipient and disintegrant on medical industry.In food industry, microcrystalline cellulose is identical with the cellulosic component of the daily absorption of people, so be a kind of safe and reliable food additives, major function has the stability keeping dairy produce, tin product and instant drink; The structure of food can be improved as thickener; Because of the adsorptivity that it has, can by obtaining the food of high mineral content to metal biosorption.
At present, the production of microcrystalline cellulose mainly adopts cotton, wood pulps is raw material, but these two kinds of raw material resources are limited, and cost is high, therefore, in order to reduce costs, reasonably utilizes resource, just needs to select some better raw materials to produce microcrystalline cellulose.At scientific research field, a lot of researcher studies other raw materials and prepares microcrystalline cellulose, such as Wheat Straw, rice husk, bagasse, cotton linter etc.At present, also large-scale industrial production is not realized with straw, bagasse, the MCC of cotton linter prepared by raw material.Bamboo shoots produce a large amount of leftover bits and pieces in process, and bamboo shoots leftover bits and pieces contains abundant dietary fiber, utilize it to prepare microcrystalline cellulose, not only can reduce environmental pollution, also will open up the new way of a processing of agriculture product comprehensive utilization.
The microcrystalline cellulose production technology of producing both at home and abroad is at present different with equipment, character is also not quite similar, traditional technological principle is the same substantially, mainly by plant material through pretreatment, obtain pure cellulose, then obtain high-quality microcrystalline cellulose through acid hydrolysis, drying, pulverizing.The feature of bamboo shoot case fibre in " two high one low ", wherein content of cellulose is 36 ~ 40%, and a little more than paddy rice stalk and wheat-straw, suitable with cornstalk, cocoanut shell, in bamboo shoot shell, hemicellulose level enriches, and content of lignin is lower.One of bamboo shoots leftover bits and pieces main bugbear is exactly very large bitter taste, and traditional method is not suitable for the preparation of bamboo shoots leftover bits and pieces microcrystalline cellulose, and cannot retain the distinctive fragrance of bamboo shoots.Therefore, suitable method must be adopted to utilize bamboo shoots leftover bits and pieces to produce microcrystalline cellulose, as food additives.
Summary of the invention
In view of above-mentioned weak point, the object of the present invention is to provide the fragrance that a kind of technique is simple, cellulose yield is high, have bamboo shoots, without bitter taste, appearance looks elegant, what mouthfeel was mellow and full utilizes bamboo shoots leftover bits and pieces to produce the method for microcrystalline cellulose.Present invention also offers the preparation method of the cellulose microcapsule granule of the fragrance of a kind of permanent these bamboo shoots of maintenance.
In order to achieve the above object, present invention employs following technical scheme:
Utilize bamboo shoots leftover bits and pieces to produce a method for microcrystalline cellulose, comprise the following steps:
Choose without mildew, free from extraneous odour, the bamboo shoots leftover bits and pieces that do not rot, as bamboo shoot shell, aging bamboo shoot base, bamboo shoot clothing, not good bamboo shoot meat etc., the bamboo shoots leftover bits and pieces of wash clean is cut into even fritter, pulverizer is utilized to be ground into comparatively granule, bitter taste is being removed to it, then carry out degrading with the alcohol that boils containing the height of a small amount of delignification catalyst and obtain the higher cellulose of purity, clean with distilled water flushing, through bleaching, be separated solid content and be washed till neutrality with distilled water, last suction filtration, dry, ultra-fine grinding obtains microcrystalline cellulose.In order to retain the fragrance of bamboo shoots, adopting gelatin to be that raw material does wall-forming material, making microcapsules, retain bamboo shoots fragrance, make its mouthfeel mellow and full.The size of microcrystalline cellulose about 20 ~ 30um by analysis, the degree of polymerization is about 80 ~ 130, and degree of crystallinity about 0.75 ~ 0.80, meets the requirements.
Be specially:
(1) raw material screening and cleaning: choose without mildew, free from extraneous odour, the bamboo shoots leftover bits and pieces that do not rot, these leftover bits and pieces are cleaned in drum washing machine;
(2) raw material is pulverized: the bamboo shoots leftover bits and pieces of wash clean is cut into even fritter, pulverizes granulating with pulverizer;
(3) taste removal: bitter taste process is removed to the bamboo shoots leftover bits and pieces grain of step (2) gained;
(4) dry: the above-mentioned bamboo shoots leftover bits and pieces grain removing bitter taste is dried;
(5) decompose: be the ethanol of 75% by the bamboo shoots leftover bits and pieces grain of above-mentioned oven dry and volumetric concentration, digester is put into by the mass ratio of solid-liquid ratio 1: 5, boiling temperature controls at 180 ~ 210 DEG C, digestion time 30 ~ 60min, then about 70 DEG C are cooled to, add the delignification catalyst accounting for feed liquid quality 5% again and carry out catalysis, the time is 90min;
(6) be separated: the boiling raw material after decomposing is filtered, obtains filter residue, filter residue is washed with water 2 times, in 50 DEG C of oven dry, obtained cellulose, ethanol reclaims;
(7) bleach: the cellulose obtained to step (6) carries out bleaching;
(8) be hydrolyzed: the ratio that the cellulose after bleaching adds volumetric concentration 4% hydrochloric acid solution 10mL in every gram of cellulose is hydrolyzed, hydrolysising condition for be hydrolyzed 30min at 75 DEG C, then in hydrolyzate, add the distilled water of its volume 1/2, after solid-liquid layering, be separated solid content and be washed till neutrality with distilled water, suction filtration, dries under 80 DEG C of drying conditions;
(9) ultra-fine grinding: step (8) gained cellulose is carried out ultra-fine grinding, obtained microcrystalline cellulose.
(10) microencapsulation: adopt the conventional gelatin of industrial production and Arabic gum compound to prepare microcapsules as wall material, the ratio of gelatin and Arabic gum is 1:1.5, the ratio of core (cellulose) and wall material is 1:3, then make microcapsule granule with spraying dry, baking temperature is 100 ~ 120 DEG C.
Described delignification catalyst is heteropoly acid.
In the present invention:
Because bamboo shoots are the buds be just unearthed, grow vigorous, also formation and the thickening of secondary wall is carried out while being undertaken growing by cell elongation, content of cellulose sharply increases, simultaneously also along with the synthesis of lignin, this just causes bamboo shoots ripe and aging rapidly, and bamboo shoot body becomes tough and tensile, finally loses edibility.Therefore, need, by cellulose and lignin separation, to obtain the cellulose that purity is higher.
Pulverized by raw material, its raw material particle size is diminished, specific area increases, and accessibility improves, and degree of crystallinity reduces, and reduces average degree of polymerization.Conventional method uses acid or alkali treatment to prepare fiber, and the present invention adopts to carry out degrading containing 75% ethanol of a small amount of delignification catalyst and obtains the higher cellulose of purity, this process characteristic is energy-conservation and pollution-free, and simply, product yield is high for flow process and process conditions.Conventional method is under acid-base condition, the content of lignin in cellulosic material can be reduced, make cellulose by saponification, tight structure between lignin and hemicellulose destroyed, reduce the degree of polymerization and the degree of crystallinity of cellulosic material, cellulosic material generation swelling action can be made simultaneously, increase accessibility.The main component pentosan of the hemicellulose in bamboo shoots leftover bits and pieces is subject to acid-base function and dissolves; And by aromatic compound phenylpropyl alcohol alkane being macromolecule---the lignin of the space network that base unit is formed, Nature comparison is active, acts on be dissolved in cooking liquor with alkali, acid, but chemical constitution is damaged.And the inventive method is extracted cellulosic key reaction process and is: bamboo shoots leftover bits and pieces heats in 75% ethanolic solution that hemicellulose under catalyst action is degraded, scission of link, and lignin dissolves in 75% ethanolic solution and is separated with cellulose.The two chemical constitution is not almost destroyed.
Detailed description of the invention
We will the invention will be further described in conjunction with specific embodiments below.
Utilize bamboo shoots leftover bits and pieces to produce a method for microcrystalline cellulose, comprise the following steps:
(1) raw material screening and cleaning: choose without mildew, free from extraneous odour, the bamboo shoots leftover bits and pieces that do not rot, these leftover bits and pieces are cleaned in drum washing machine;
(2) raw material is pulverized: the bamboo shoots leftover bits and pieces of wash clean is cut into even fritter, pulverizes granulating with pulverizer;
(3) bitter taste is removed: bitter taste process is removed to the bamboo shoots leftover bits and pieces grain of step (2) gained:
Get NaOH and citric acid is dissolved in the water, obtain soak, in soak, the mass concentration of NaOH is 0.3%, the mass concentration 0.2% of citric acid; Be that bamboo shoots leftover bits and pieces grain is placed in soak by the ratio of 1:20 according to feed liquid mass ratio, soak time is 2h, removes hydrogen cyanide and bitter taste;
(4) dry: the above-mentioned bamboo shoots leftover bits and pieces grain removing bitter taste is dried 2 hours in the baking oven of 80 DEG C;
(5) decompose: be the ethanol of 75% by the bamboo shoots leftover bits and pieces grain of above-mentioned oven dry and volumetric concentration, digester is put into by the mass ratio of solid-liquid ratio 1: 5, boiling temperature controls at 200 DEG C, digestion time 45min, then about 70 DEG C are cooled to, add the heteropoly acid accounting for feed liquid quality 5% again and carry out catalysis, the time is 90min;
(6) be separated: the boiling raw material after decomposing is filtered, obtains filter residue, filter residue is washed with water 2 times, in 50 DEG C of oven dry, obtained cellulose, ethanol reclaims;
(7) bleach: the cellulose obtained to step (6) carries out bleaching: be 3% sodium sulfite solution bleaching 30min by volumetric concentration, and with distilled water cyclic washing extremely without sulphur-containing substance existence, for subsequent use;
(8) be hydrolyzed: the ratio that the cellulose after bleaching adds volumetric concentration 4% hydrochloric acid solution 10mL in every gram of cellulose is hydrolyzed, hydrolysising condition for be hydrolyzed 30min at 75 DEG C, then in hydrolyzate, add the distilled water of its volume 1/2, after solid-liquid layering, be separated solid content and be washed till neutrality with distilled water, suction filtration, dries under 80 DEG C of drying conditions;
(9) ultra-fine grinding: step (8) gained cellulose is carried out ultra-fine grinding, obtained microcrystalline cellulose.
The preparation of cellulose microcapsule granule: adopt the conventional gelatin of industrial production and Arabic gum compound to prepare microcapsules as wall material, the ratio of gelatin and Arabic gum is 1:1.5, the microcrystalline cellulose of core obtained by the present invention, the ratio of core and wall material is 1:3, then make microcapsule granule with spraying dry, baking temperature is 100 ~ 120 DEG C.
| Project | Degree of crystallinity | The degree of polymerization | Granularity (< 45 μm) | Whiteness | Smell |
| Bamboo shoots leftover bits and pieces microcrystalline cellulose of the present invention | 80.3% | 125 | 99.4% | 79 | The peculiar fragrance of bamboo shoots is obvious |
| Commercially available microcrystalline cellulose | 77.1% | 115 | 98.2% | 87 | Bamboo shoots fragrance is not obvious |
(1) present invention employs specific debitterized technique and bitter taste process is removed to bamboo shoots leftover bits and pieces grain, make the microcrystalline cellulose obtained have the fragrance of bamboo shoots, there is no bitter taste, well can be applied to food additives.
(2) compared with preparing cellulosic method with traditional soda acid, the method is pollution-free, and cellulose yield reaches 85%, and improve 20% nearly than conventional method, cellulosic mensuration measures according to the standard determination method of microcrystalline cellulose in food additives.
(3) compared with the cellulosic method of classical acid alkali treatment, the method uses ethanol, recycles in process of production, and recycling, reduce costs, and production technology is simple.
(4) microcrystalline cellulose that obtains of the method is compared with commercially available microcrystalline cellulose, and physicochemical property is more excellent, and have the fragrance of bamboo shoots, do not have bitter taste, appearance looks elegant, mouthfeel is mellow and full, and physicochemical property is more excellent.
(5) the method achieve twice laid, develop and there is high value-added product, reduce bamboo shoots leftover bits and pieces to the pollution of environment, promote ecological resources Green Development.
Claims (8)
1. utilize bamboo shoots leftover bits and pieces to produce a method for microcrystalline cellulose, it is characterized in that: the method comprises the following steps:
(1) raw material screening and cleaning: choose without mildew, free from extraneous odour, the bamboo shoots leftover bits and pieces that do not rot, these leftover bits and pieces are cleaned in drum washing machine;
(2) raw material is pulverized: the bamboo shoots leftover bits and pieces of wash clean is cut into even fritter, pulverizes granulating with pulverizer;
(3) taste removal: bitter taste process is removed to the bamboo shoots leftover bits and pieces grain of step (2) gained;
(4) dry: the above-mentioned bamboo shoots leftover bits and pieces grain removing bitter taste is dried;
(5) decompose: be the ethanol of 75% by the bamboo shoots leftover bits and pieces grain of above-mentioned oven dry and volumetric concentration, digester is put into by the mass ratio of solid-liquid ratio 1: 5, boiling temperature controls at 180-210 DEG C, digestion time 30-60min, then about 70 DEG C are cooled to, add the delignification catalyst accounting for feed liquid quality 5% again and carry out catalysis, the time is 90min;
(6) be separated: the boiling raw material after decomposing is filtered, obtains filter residue, filter residue is washed with water 2 times, in 50 DEG C of oven dry, obtained cellulose, ethanol reclaims;
(7) bleach: the cellulose obtained to step (6) carries out bleaching;
(8) be hydrolyzed: the ratio that the cellulose after bleaching adds volumetric concentration 4% hydrochloric acid solution 10mL in every gram of cellulose is hydrolyzed, hydrolysising condition for be hydrolyzed 30min at 75 DEG C, then in hydrolyzate, add the distilled water of its volume 1/2, after solid-liquid layering, be separated solid content and be washed till neutrality with distilled water, suction filtration, dries under 80 DEG C of drying conditions;
(9) ultra-fine grinding: step (8) gained cellulose is carried out ultra-fine grinding, obtained microcrystalline cellulose.
2. the method utilizing bamboo shoots leftover bits and pieces to produce microcrystalline cellulose according to claim 1, is characterized in that: the method removing bitter taste process in described step (3) is:
(1) prepare soak: get NaOH and citric acid is dissolved in the water, obtain soak, in soak, the mass concentration of NaOH is 0.3%, the mass concentration 0.2% of citric acid;
(2) bitter taste is removed: be that bamboo shoots leftover bits and pieces grain is placed in soak by the ratio of 1:20 according to feed liquid mass ratio, soak time is 2h, removes hydrogen cyanide and bitter taste.
3. the method utilizing bamboo shoots leftover bits and pieces to produce microcrystalline cellulose according to claim 1, is characterized in that: in described step (4), furnace drying method is: dry 2 hours in the baking oven of 80 DEG C.
4. the method utilizing bamboo shoots leftover bits and pieces to produce microcrystalline cellulose according to claim 1, it is characterized in that: method for bleaching is in described step (7): be that 3% sodium sulfite solution bleaches 30min by volumetric concentration, and exist to without sulphur-containing substance with distilled water cyclic washing, for subsequent use.
5. the method utilizing bamboo shoots leftover bits and pieces to produce microcrystalline cellulose according to claim 1, is characterized in that: described delignification catalyst is heteropoly acid.
6. the microcrystalline cellulose obtained by the method for claim 1.
7. a microcrystalline cellulose as claimed in claim 6 is as the application of food additives.
8. a cellulose microcapsule granule, its core is microcrystalline cellulose, it is characterized in that: this cellulose microcapsule granule is obtained by following methods: adopt the conventional gelatin of industrial production and Arabic gum compound to prepare microcapsules as wall material, the ratio of gelatin and Arabic gum is 1:1.5, the ratio of core and wall material is 1:3, then make microcapsule granule with spraying dry, baking temperature is 100-120 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510564848.1A CN105076921A (en) | 2015-09-08 | 2015-09-08 | Method for producing microcrystalline cellulose by utilizing leftovers of bamboo shoots |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510564848.1A CN105076921A (en) | 2015-09-08 | 2015-09-08 | Method for producing microcrystalline cellulose by utilizing leftovers of bamboo shoots |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105076921A true CN105076921A (en) | 2015-11-25 |
Family
ID=54558979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510564848.1A Pending CN105076921A (en) | 2015-09-08 | 2015-09-08 | Method for producing microcrystalline cellulose by utilizing leftovers of bamboo shoots |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105076921A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106749688A (en) * | 2016-12-28 | 2017-05-31 | 广州市楹晟生物科技有限公司 | A kind of production method of microcrystalline cellulose |
| WO2018206852A1 (en) * | 2017-05-10 | 2018-11-15 | Aalto University Foundation Sr | Lignin containing microcellulose as an animal feed additive |
| CN110506850A (en) * | 2019-07-31 | 2019-11-29 | 厦门大学 | Bamboo shoot process residue comprehensive processing and utilization method |
| CN112663381A (en) * | 2020-12-09 | 2021-04-16 | 武汉纺织大学 | Preparation method of bamboo shoot shell cellulose nanowhisker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497833A (en) * | 2009-03-03 | 2009-08-05 | 安徽六安市春成绿色化工有限公司 | Production process for producing biobase natural gas with coproduction of lignose and microcrystalline cellulose from bamboo processing wastes |
| CN101864684A (en) * | 2010-06-11 | 2010-10-20 | 中国林业科学研究院林产化学工业研究所 | Method for preparing pharmaceutical-grade microcrystalline cellulose from cotton linter |
| CN102002875A (en) * | 2010-10-23 | 2011-04-06 | 吉林大学 | Method for preparing microcrystalline cellulose by using carrot pomace |
| CN103642591A (en) * | 2013-06-30 | 2014-03-19 | 金玛瑙香水（明光）有限公司 | Microcapsule spice composition |
-
2015
- 2015-09-08 CN CN201510564848.1A patent/CN105076921A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497833A (en) * | 2009-03-03 | 2009-08-05 | 安徽六安市春成绿色化工有限公司 | Production process for producing biobase natural gas with coproduction of lignose and microcrystalline cellulose from bamboo processing wastes |
| CN101864684A (en) * | 2010-06-11 | 2010-10-20 | 中国林业科学研究院林产化学工业研究所 | Method for preparing pharmaceutical-grade microcrystalline cellulose from cotton linter |
| CN102002875A (en) * | 2010-10-23 | 2011-04-06 | 吉林大学 | Method for preparing microcrystalline cellulose by using carrot pomace |
| CN103642591A (en) * | 2013-06-30 | 2014-03-19 | 金玛瑙香水（明光）有限公司 | Microcapsule spice composition |
Non-Patent Citations (3)
| Title |
|---|
| 倪培德: "《油脂加工技术》", 31 January 2003 * |
| 胡芳等: "《现代制浆技术》", 31 December 2007, 哈尔滨工程大学出版 * |
| 胡贞等: "软包装即食笋丝加工工艺研究", 《广东农业科学》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106749688A (en) * | 2016-12-28 | 2017-05-31 | 广州市楹晟生物科技有限公司 | A kind of production method of microcrystalline cellulose |
| WO2018206852A1 (en) * | 2017-05-10 | 2018-11-15 | Aalto University Foundation Sr | Lignin containing microcellulose as an animal feed additive |
| CN110831442A (en) * | 2017-05-10 | 2020-02-21 | 阿尔托大学注册基金会 | Lignin-containing microfibrils as animal feed additives |
| US11617380B2 (en) | 2017-05-10 | 2023-04-04 | Nordic Bioproducts Group Oy | Lignin containing microcellulose as an animal feed additive |
| CN110506850A (en) * | 2019-07-31 | 2019-11-29 | 厦门大学 | Bamboo shoot process residue comprehensive processing and utilization method |
| CN112663381A (en) * | 2020-12-09 | 2021-04-16 | 武汉纺织大学 | Preparation method of bamboo shoot shell cellulose nanowhisker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104223125B (en) | A kind of method preparing potato residues dietary fiber | |
| CN104621495B (en) | A kind of dragon fruit pericarp activity food fibre powder and preparation method thereof | |
| CN105076921A (en) | Method for producing microcrystalline cellulose by utilizing leftovers of bamboo shoots | |
| CN102659898A (en) | Microwave-assisted method for extracting tea saponin | |
| CN103397554B (en) | A kind of new technology preparing lignocellulose-like biomass microcrystalline Cellulose | |
| CN102747637B (en) | Process for producing cellulose by residues of pomace after pectin extraction | |
| CN101715947A (en) | Method for producing dietary fiber with by-product orange dreg of orange juice | |
| CN103859422A (en) | Production method of banana flower soluble dietary fiber | |
| CN109516850A (en) | A kind of method that agricultural crop straw prepares organic fertilizer | |
| CN104725522A (en) | Method for extracting white fungus polysaccharides at high temperature under high pressure | |
| CN101974096A (en) | Method for efficiently extracting polysaccharides from sporophyll of Undaria pinnatifida Suringar | |
| CN105707907A (en) | Method for preparing insoluble dietary fiber from olea europaea pomace | |
| CN109320618A (en) | A kind of method that extrusion collaboration alkaline process improves cereals starch extraction rate | |
| CN110506943A (en) | A kind of method of soluble dietary fiber in extraction bean dregs | |
| CN106723089A (en) | The method of insoluble diedairy fiber in high efficiency extraction sweet potato waste | |
| CN103689611B (en) | A kind of extracting method of alfalfa dietary fiber | |
| CN108714312A (en) | A kind of oil tea shell rises in value the method utilized at many levels | |
| CN103059093B (en) | Method for preparing saponin by vacuum digestion | |
| CN1166319C (en) | Productive technology for extracting diet fiber from-sargassum | |
| CN103518943A (en) | Method for extracting proteins from rape seed cakes by utilizing multi-frequency ultrasonic waves | |
| CN108741106A (en) | A kind of production technology for extracting dietary fiber from brown alga | |
| CN106632581A (en) | Multilayer separation and refining method for straw components | |
| CN1289530C (en) | Method for producing maize active polysaccharide | |
| CN104694672A (en) | Method for producing oligosaccharide | |
| CN114208937A (en) | Sea-buckthorn small-molecule peptide and preparation method thereof |
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: 20151125 |
|
| RJ01 | Rejection of invention patent application after publication |