CN105384849A - Low fat dragon fruit pectin preparation method - Google Patents
Low fat dragon fruit pectin preparation method Download PDFInfo
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- CN105384849A CN105384849A CN201510951424.0A CN201510951424A CN105384849A CN 105384849 A CN105384849 A CN 105384849A CN 201510951424 A CN201510951424 A CN 201510951424A CN 105384849 A CN105384849 A CN 105384849A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0045—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Galacturonans, e.g. methyl ester of (alpha-1,4)-linked D-galacturonic acid units, i.e. pectin, or hydrolysis product of methyl ester of alpha-1,4-linked D-galacturonic acid units, i.e. pectinic acid; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0003—General processes for their isolation or fractionation, e.g. purification or extraction from biomass
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Abstract
The present invention discloses a low fat dragon fruit pectin preparation method, and belongs to the field of pectin materials. The method is as follows: dragon fruit peel meal can be obtained by softening by water absorption, enzyme inactivation and crushing, a phosphate solution is added for microwave extraction to obtain a pectin extracting solution, esterase is added into the pectin extracting solution to obtain an enzymatic hydrolysate, the enzymatic hydrolysate is filtered by suction to obtain a filtration residue, the filtration residue is placed in an oven for drying to obtain low fat dragon fruit pectin; according to the method, an enzymic method is used for defatting, due to the enzyme specificity and high efficiency, production cycle is short, extraction efficiency is high, product quality is good, the manufacturing process is free of environmental contamination caused by use of a lot of acid and alkali, and substances harmful to human body may not be brought.
Description
Technical field
The invention discloses a kind of preparation method of low fat Hylocereus undatus pectin, belong to pectin material field.
Background technology
Pectin is present in a kind of high molecular polymer in the cell walls of the root of plant, stem, leaf, fruit, and relative molecular mass is between 5 × 10
5~ 30 × 10
5between.Usually gamma value is called HM-pectin (high ester pectin) higher than the pectin of 50% (being equivalent to methoxy content 7% ~ 16.3%), gamma value is called low-fat pectin (low-ester pectin) lower than the pectin of 50% (be equivalent to methoxy content and be less than 7%).Therefore HM-pectin (high ester pectin) at soluble solid higher than 55% and the ability gelling between 2.0 ~ 3.5 of pH scope, can only be mainly used in the production of high-carbohydrate food.And low-fat pectin (low-ester pectin) is at Ca
2+or have sugar or sugar-free all can form the gel of good properties under the existence of other divalent cation.But to be present in natural pectin be generally high ester pectin (methoxy content is between 7% ~ 14%), natural low-ester pectin is little, how to effectively utilize abundant high ester pectin resource and produces the focus that low-ester pectin is research both at home and abroad.
The method for making of low-fat pectin mainly contains acidic ethanol method, alkalization method, amidation method, enzyme method etc.HM-pectin all can be made to take off ester with acid, alkali, enzyme and amidation, thus change into low-fat pectin.When using bronsted lowry acids and bases bronsted lowry, strictly must grasp condition, producing hydrolysis to prevent β-cancellation, reduce the volume of Pectin polymers, cause pectin degradation.Amidated pectins abroad puts into production, and studies in China is little.There is people, by amidation, HM-pectin is changed into low-fat pectin (semi-synthetic low-fat pectin) in recent years.Although the food using this kind of low-fat pectin to make overcame the shortcoming of sweet and peracid and improve mouthfeel, but because amidation has brought some objectionable impuritiess into, therefore it does not just resemble natural low-fat pectin (such as Sunflower Receptacle low-fat pectin) welcome.In addition, the production cost of this semi-synthetic low-fat pectin is also quite high.
Summary of the invention
The technical problem that the present invention mainly solves: for using acid at present, alkali, enzyme and amidation can make HM-pectin take off ester, change into low-fat pectin, but use during bronsted lowry acids and bases bronsted lowry and there will be β-cancellation and produce hydrolysis, reduce the volume of Pectin polymers, cause pectin degradation, and amidation can introduce the problem of some objectionable impuritiess, provide a kind of method extracting low-fat pectin from Hylocereus undatus, the present invention is softening through absorbing water, go out enzyme, pulverize to obtain pitaya peel powder, add phosphate solution microwave extracting again and obtain pectin extracting soln, in pectin extracting soln, add esterase obtain enzymolysis solution, enzymolysis solution obtains filter residue through suction filtration, filter residue is put into baking oven dry low fat Hylocereus undatus pectin, the present invention utilizes enzyme process to take off ester, because enzyme has specificity and high efficiency, with short production cycle, extraction efficiency is high, quality of finished product good, also a large amount of acid can not be there is in preparation process, the use of alkali and environment is polluted, also the phenomenon can not bringing some harmful materials into occurs.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
(1) 3 ~ 5 Hylocereus undatuss are got, the floating dust on pericarp surface is cleaned with deionized water, after removing pulp, pericarp is immersed in the hot water of 60 ~ 70 DEG C and soak 1 ~ 2h, go out enzyme and passivation Rohapect MPE, pull out after immersion completes and naturally drain, then putting it into baking oven and be dried to constant weight with the temperature of 60 ~ 70 DEG C;
(2) dried pericarp cutter is shredded the granularity to 3 ~ 5mm, then pericarp particle is laid on supporting plate, after being pulverized with rolling pin, move in mortar, be ground into powder, obtain Hylocereus undatus fruit peel powder;
(3) take the above-mentioned obtained Hylocereus undatus fruit peel powder of 50 ~ 100g and put into 500mL beaker, add the compound phosphoric acid salts solution that appropriate mass concentration is 30%, till submergence pericarp, move into again in water-bath after leaving standstill broken wall treatment 18 ~ 24h, be heated to 85 ~ 95 DEG C, insulation 30 ~ 40min, for subsequent use;
(4) mixed solution after being incubated by 300 ~ 400mL is poured in 500mL tool plug Erlenmeyer flask, after regulating pH to 3 ~ 4 with the hydrochloric acid soln that concentration is 0.2mol/L, oil bath is heated to 90 ~ 100 DEG C, preheating 20 ~ 25min, move into immediately in Microwave Extraction Apparatus after preheating completes, with the power microwave of 200 ~ 300W extraction 12 ~ 15min, use filtered through gauze while hot, obtain crude pectin extracting solution;
(5) above-mentioned for 250 ~ 350mL obtained crude pectin extracting solution is loaded in ceramic enzymatic vessel, add the immobilization Rohapect MPE of pectin extracting soln total mass 3 ~ 5%, with preservative film sealed can mouth, put into thermostat container, at 40 ~ 45 DEG C, enzymolysis is after 1 ~ 2 day, zymolyte is poured into Büchner funnel and carry out suction filtration, after Separation and Recovery immobilization Rohapect MPE, obtain enzymolysis solution;
(6) in above-mentioned enzymolysis solution, the ethanolic soln that 300 ~ 400mL mass concentration is 90% is added, move in ice bath pot, stir 5 ~ 10min with glass stick at 4 ~ 6 DEG C after, ice bath leaves standstill 20 ~ 30min, finally remove ethanol with vacuum filtration machine suction filtration and separate out low-fat pectin throw out, put it in thermostatic drying chamber, at 60 ~ 70 DEG C, be dried to constant weight namely obtain a kind of low fat Hylocereus undatus pectin.
Described compound phosphoric acid salts solution is in mass ratio for 28:55:17 is composite obtained by sodium polyphosphate, sodium-metaphosphate and trisodium phosphate.
The low fat Hylocereus undatus pectin that the present invention obtains is red-purple particle, the micro-puckery and free from extraneous odour of taste; Weight loss on drying 4.3 ~ 6.2%, hydrochloric acid insoluble substance 0.6 ~ 0.9%, pH value 4.5 ~ 5.0, total galacturonic acid 74 ~ 76%, degree of gelation (cracking pressure method) 100 °, methoxy content 4.9 ~ 5.2%.
The invention has the beneficial effects as follows:
(1) the present invention utilizes enzyme process to take off ester, because enzyme has specificity and high efficiency, with short production cycle and, high, the quality of finished product good of extraction efficiency;
(2) also can not occur in preparation process of the present invention a large amount of acid, alkali use and environment is polluted, also can not bring into some harmful materials phenomenon occur.
Embodiment
First 3 ~ 5 Hylocereus undatuss are got, the floating dust on pericarp surface is cleaned with deionized water, after removing pulp, pericarp is immersed in the hot water of 60 ~ 70 DEG C and soak 1 ~ 2h, go out enzyme and passivation Rohapect MPE, pull out after immersion completes and naturally drain, then putting it into baking oven and be dried to constant weight with the temperature of 60 ~ 70 DEG C; Dried pericarp cutter is shredded the granularity to 3 ~ 5mm, then pericarp particle is laid on supporting plate, after being pulverized with rolling pin, move in mortar, be ground into powder, obtain Hylocereus undatus fruit peel powder; Take the above-mentioned obtained Hylocereus undatus fruit peel powder of 50 ~ 100g and put into 500mL beaker, add the compound phosphoric acid salts solution that appropriate mass concentration is 30%, till submergence pericarp, move into again in water-bath after leaving standstill broken wall treatment 18 ~ 24h, be heated to 85 ~ 95 DEG C, insulation 30 ~ 40min, for subsequent use; Mixed solution after being incubated by 300 ~ 400mL is poured in 500mL tool plug Erlenmeyer flask, after regulating pH to 3 ~ 4 with the hydrochloric acid soln that concentration is 0.2mol/L, oil bath is heated to 90 ~ 100 DEG C, preheating 20 ~ 25min, move into immediately in Microwave Extraction Apparatus after preheating completes, with the power microwave of 200 ~ 300W extraction 12 ~ 15min, use filtered through gauze while hot, obtain crude pectin extracting solution; Above-mentioned for 250 ~ 350mL obtained crude pectin extracting solution is loaded in ceramic enzymatic vessel, add the immobilization Rohapect MPE of pectin extracting soln total mass 3 ~ 5%, with preservative film sealed can mouth, put into thermostat container, at 40 ~ 45 DEG C, enzymolysis is after 1 ~ 2 day, zymolyte is poured into Büchner funnel and carry out suction filtration, after Separation and Recovery immobilization Rohapect MPE, obtain enzymolysis solution; The ethanolic soln that 300 ~ 400mL mass concentration is 90% is added in enzymolysis solution, move in ice bath pot, stir 5 ~ 10min with glass stick at 4 ~ 6 DEG C after, ice bath leaves standstill 20 ~ 30min, finally remove ethanol with vacuum filtration machine suction filtration and separate out low-fat pectin throw out, put it in thermostatic drying chamber, at 60 ~ 70 DEG C, be dried to constant weight namely obtain a kind of low fat Hylocereus undatus pectin.
Described compound phosphoric acid salts solution is in mass ratio for 28:55:17 is composite obtained by sodium polyphosphate, sodium-metaphosphate and trisodium phosphate.
First 3 Hylocereus undatuss are got, clean the floating dust on pericarp surface with deionized water, immersed by pericarp after removing pulp in the hot water of 60 DEG C and soak 1h, go out enzyme and passivation Rohapect MPE, pull out after immersion completes and naturally drain, then putting it into baking oven and be dried to constant weight with the temperature of 60 DEG C; Dried pericarp cutter is shredded the granularity to 3mm, then pericarp particle is laid on supporting plate, after being pulverized with rolling pin, move in mortar, be ground into powder, obtain Hylocereus undatus fruit peel powder; Take the above-mentioned obtained Hylocereus undatus fruit peel powder of 50g and put into 500mL beaker, add the compound phosphoric acid salts solution that appropriate mass concentration is 30%, till submergence pericarp, move into again in water-bath after leaving standstill broken wall treatment 18h, be heated to 85 DEG C, insulation 30min, for subsequent use; Mixed solution after being incubated by 300mL is poured in 500mL tool plug Erlenmeyer flask, after regulating pH to 3 with the hydrochloric acid soln that concentration is 0.2mol/L, oil bath is heated to 90 DEG C, preheating 20min, move into immediately in Microwave Extraction Apparatus after preheating completes, with the power microwave of 200W extraction 12min, use filtered through gauze while hot, obtain crude pectin extracting solution; Above-mentioned for 250mL obtained crude pectin extracting solution is loaded in ceramic enzymatic vessel, add the immobilization Rohapect MPE of pectin extracting soln total mass 3%, with preservative film sealed can mouth, put into thermostat container, at 40 DEG C, enzymolysis is after 1 day, zymolyte is poured into Büchner funnel and carry out suction filtration, after Separation and Recovery immobilization Rohapect MPE, obtain enzymolysis solution; The ethanolic soln that 300mL mass concentration is 90% is added in enzymolysis solution, move in ice bath pot, stir 5min with glass stick at 4 DEG C after, ice bath leaves standstill 20min, finally remove ethanol with vacuum filtration machine suction filtration and separate out low-fat pectin throw out, put it in thermostatic drying chamber, at 60 DEG C, be dried to constant weight namely obtain a kind of low fat Hylocereus undatus pectin.
Described compound phosphoric acid salts solution is in mass ratio for 28:55:17 is composite obtained by sodium polyphosphate, sodium-metaphosphate and trisodium phosphate.
The low fat Hylocereus undatus pectin that the present invention obtains is red-purple particle, the micro-puckery and free from extraneous odour of taste; Weight loss on drying 4.3%, hydrochloric acid insoluble substance 0.6%, pH value 4.5, total galacturonic acid 74%, degree of gelation (cracking pressure method) 100 °, methoxy content 4.9%.
First 4 Hylocereus undatuss are got, clean the floating dust on pericarp surface with deionized water, immersed by pericarp after removing pulp in the hot water of 65 DEG C and soak 1.5h, go out enzyme and passivation Rohapect MPE, pull out after immersion completes and naturally drain, then putting it into baking oven and be dried to constant weight with the temperature of 65 DEG C; Dried pericarp cutter is shredded the granularity to 4mm, then pericarp particle is laid on supporting plate, after being pulverized with rolling pin, move in mortar, be ground into powder, obtain Hylocereus undatus fruit peel powder; Take the above-mentioned obtained Hylocereus undatus fruit peel powder of 75g and put into 500mL beaker, add the compound phosphoric acid salts solution that appropriate mass concentration is 30%, till submergence pericarp, move into again in water-bath after leaving standstill broken wall treatment 22h, be heated to 90 DEG C, insulation 35min, for subsequent use; Mixed solution after being incubated by 350mL is poured in 500mL tool plug Erlenmeyer flask, after regulating pH to 3.5 with the hydrochloric acid soln that concentration is 0.2mol/L, oil bath is heated to 95 DEG C, preheating 23min, move into immediately in Microwave Extraction Apparatus after preheating completes, with the power microwave of 250W extraction 13min, use filtered through gauze while hot, obtain crude pectin extracting solution; Above-mentioned for 300mL obtained crude pectin extracting solution is loaded in ceramic enzymatic vessel, add the immobilization Rohapect MPE of pectin extracting soln total mass 4%, with preservative film sealed can mouth, put into thermostat container, at 43 DEG C, enzymolysis is after 1 day, zymolyte is poured into Büchner funnel and carry out suction filtration, after Separation and Recovery immobilization Rohapect MPE, obtain enzymolysis solution; The ethanolic soln that 350mL mass concentration is 90% is added in enzymolysis solution, move in ice bath pot, stir 8min with glass stick at 5 DEG C after, ice bath leaves standstill 25min, finally remove ethanol with vacuum filtration machine suction filtration and separate out low-fat pectin throw out, put it in thermostatic drying chamber, at 65 DEG C, be dried to constant weight namely obtain a kind of low fat Hylocereus undatus pectin.
Described compound phosphoric acid salts solution is in mass ratio for 28:55:17 is composite obtained by sodium polyphosphate, sodium-metaphosphate and trisodium phosphate.
The low fat Hylocereus undatus pectin that the present invention obtains is red-purple particle, the micro-puckery and free from extraneous odour of taste; Weight loss on drying 5.1%, hydrochloric acid insoluble substance 0.7%, pH value 4.7, total galacturonic acid 75%, degree of gelation (cracking pressure method) 100 °, methoxy content 5.0%.
Example 3
First 5 Hylocereus undatuss are got, clean the floating dust on pericarp surface with deionized water, immersed by pericarp after removing pulp in the hot water of 70 DEG C and soak 2h, go out enzyme and passivation Rohapect MPE, pull out after immersion completes and naturally drain, then putting it into baking oven and be dried to constant weight with the temperature of 70 DEG C; Dried pericarp cutter is shredded the granularity to 5mm, then pericarp particle is laid on supporting plate, after being pulverized with rolling pin, move in mortar, be ground into powder, obtain Hylocereus undatus fruit peel powder; Take the above-mentioned obtained Hylocereus undatus fruit peel powder of 100g and put into 500mL beaker, add the compound phosphoric acid salts solution that appropriate mass concentration is 30%, till submergence pericarp, move into again in water-bath after leaving standstill broken wall treatment 24h, be heated to 95 DEG C, insulation 40min, for subsequent use; Mixed solution after being incubated by 400mL is poured in 500mL tool plug Erlenmeyer flask, after regulating pH to 4 with the hydrochloric acid soln that concentration is 0.2mol/L, oil bath is heated to 100 DEG C, preheating 25min, move into immediately in Microwave Extraction Apparatus after preheating completes, with the power microwave of 300W extraction 15min, use filtered through gauze while hot, obtain crude pectin extracting solution; Above-mentioned for 350mL obtained crude pectin extracting solution is loaded in ceramic enzymatic vessel, add the immobilization Rohapect MPE of pectin extracting soln total mass 5%, with preservative film sealed can mouth, put into thermostat container, at 45 DEG C, enzymolysis is after 2 days, zymolyte is poured into Büchner funnel and carry out suction filtration, after Separation and Recovery immobilization Rohapect MPE, obtain enzymolysis solution; The ethanolic soln that 400mL mass concentration is 90% is added in enzymolysis solution, move in ice bath pot, stir 10min with glass stick at 6 DEG C after, ice bath leaves standstill 30min, finally remove ethanol with vacuum filtration machine suction filtration and separate out low-fat pectin throw out, put it in thermostatic drying chamber, at 70 DEG C, be dried to constant weight namely obtain a kind of low fat Hylocereus undatus pectin.
Described compound phosphoric acid salts solution is in mass ratio for 28:55:17 is composite obtained by sodium polyphosphate, sodium-metaphosphate and trisodium phosphate.
The low fat Hylocereus undatus pectin that the present invention obtains is red-purple particle, the micro-puckery and free from extraneous odour of taste; Weight loss on drying 6.2%, hydrochloric acid insoluble substance 0.9%, pH value 5.0, total galacturonic acid 76%, degree of gelation (cracking pressure method) 100 °, methoxy content 5.2%.
Claims (2)
1. a preparation method for low fat Hylocereus undatus pectin, is characterized in that concrete preparation process is:
(1) 3 ~ 5 Hylocereus undatuss are got, the floating dust on pericarp surface is cleaned with deionized water, after removing pulp, pericarp is immersed in the hot water of 60 ~ 70 DEG C and soak 1 ~ 2h, go out enzyme and passivation Rohapect MPE, pull out after immersion completes and naturally drain, then putting it into baking oven and be dried to constant weight with the temperature of 60 ~ 70 DEG C;
(2) dried pericarp cutter is shredded the granularity to 3 ~ 5mm, then pericarp particle is laid on supporting plate, after being pulverized with rolling pin, move in mortar, be ground into powder, obtain Hylocereus undatus fruit peel powder;
(3) take the above-mentioned obtained Hylocereus undatus fruit peel powder of 50 ~ 100g and put into 500mL beaker, add the compound phosphoric acid salts solution that appropriate mass concentration is 30%, till submergence pericarp, move into again in water-bath after leaving standstill broken wall treatment 18 ~ 24h, be heated to 85 ~ 95 DEG C, insulation 30 ~ 40min, for subsequent use;
(4) mixed solution after being incubated by 300 ~ 400mL is poured in 500mL tool plug Erlenmeyer flask, after regulating pH to 3 ~ 4 with the hydrochloric acid soln that concentration is 0.2mol/L, oil bath is heated to 90 ~ 100 DEG C, preheating 20 ~ 25min, move into immediately in Microwave Extraction Apparatus after preheating completes, with the power microwave of 200 ~ 300W extraction 12 ~ 15min, use filtered through gauze while hot, obtain crude pectin extracting solution;
(5) above-mentioned for 250 ~ 350mL obtained crude pectin extracting solution is loaded in ceramic enzymatic vessel, add the immobilization Rohapect MPE of pectin extracting soln total mass 3 ~ 5%, with preservative film sealed can mouth, put into thermostat container, at 40 ~ 45 DEG C, enzymolysis is after 1 ~ 2 day, zymolyte is poured into Büchner funnel and carry out suction filtration, after Separation and Recovery immobilization Rohapect MPE, obtain enzymolysis solution;
(6) in above-mentioned enzymolysis solution, the ethanolic soln that 300 ~ 400mL mass concentration is 90% is added, move in ice bath pot, stir 5 ~ 10min with glass stick at 4 ~ 6 DEG C after, ice bath leaves standstill 20 ~ 30min, finally remove ethanol with vacuum filtration machine suction filtration and separate out low-fat pectin throw out, put it in thermostatic drying chamber, at 60 ~ 70 DEG C, be dried to constant weight namely obtain a kind of low fat Hylocereus undatus pectin.
2. the preparation method of a kind of low fat Hylocereus undatus pectin according to claim 1, is characterized in that: described compound phosphoric acid salts solution is in mass ratio for 28:55:17 is composite obtained by sodium polyphosphate, sodium-metaphosphate and trisodium phosphate.
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Cited By (7)
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| CN105924542A (en) * | 2016-06-22 | 2016-09-07 | 平凉市佳禾农产品加工有限责任公司 | Method for extracting pectin from glutinous corn |
| CN106046196A (en) * | 2016-04-15 | 2016-10-26 | 海南大学 | Preparation method of small-molecule anti-angiosclerosis mango pectin |
| CN106349404A (en) * | 2016-08-24 | 2017-01-25 | 海南北纬十八度果业有限公司 | Fruit stem pectin of dragon fruit and preparation method and application thereof |
| CN109820084A (en) * | 2019-04-11 | 2019-05-31 | 广西壮族自治区农业科学院 | A kind of processing method of health care Sweet Potato Leaf chewing soft sweet |
| CN111296782A (en) * | 2018-12-11 | 2020-06-19 | 武汉市吉人实业有限责任公司 | Pitaya whole fruit powder and preparation method thereof |
| CN111296578A (en) * | 2018-12-11 | 2020-06-19 | 武汉市吉人实业有限责任公司 | A nutritional health soybean milk and its preparation method |
| CN113388140A (en) * | 2021-08-04 | 2021-09-14 | 广西壮族自治区农业科学院 | Special preservative film containing nano pectin coating for pitaya and preparation method of preservative film |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106046196A (en) * | 2016-04-15 | 2016-10-26 | 海南大学 | Preparation method of small-molecule anti-angiosclerosis mango pectin |
| CN105924542A (en) * | 2016-06-22 | 2016-09-07 | 平凉市佳禾农产品加工有限责任公司 | Method for extracting pectin from glutinous corn |
| CN105924542B (en) * | 2016-06-22 | 2018-04-13 | 平凉市佳禾农产品加工有限责任公司 | A kind of extracting method of waxy corn pectin |
| CN106349404A (en) * | 2016-08-24 | 2017-01-25 | 海南北纬十八度果业有限公司 | Fruit stem pectin of dragon fruit and preparation method and application thereof |
| CN111296782A (en) * | 2018-12-11 | 2020-06-19 | 武汉市吉人实业有限责任公司 | Pitaya whole fruit powder and preparation method thereof |
| CN111296578A (en) * | 2018-12-11 | 2020-06-19 | 武汉市吉人实业有限责任公司 | A nutritional health soybean milk and its preparation method |
| CN109820084A (en) * | 2019-04-11 | 2019-05-31 | 广西壮族自治区农业科学院 | A kind of processing method of health care Sweet Potato Leaf chewing soft sweet |
| CN113388140A (en) * | 2021-08-04 | 2021-09-14 | 广西壮族自治区农业科学院 | Special preservative film containing nano pectin coating for pitaya and preparation method of preservative film |
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