CN105061609A - Preparation method of starch citrate-stearate - Google Patents
Preparation method of starch citrate-stearate Download PDFInfo
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- CN105061609A CN105061609A CN201510562663.7A CN201510562663A CN105061609A CN 105061609 A CN105061609 A CN 105061609A CN 201510562663 A CN201510562663 A CN 201510562663A CN 105061609 A CN105061609 A CN 105061609A
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- stearate
- citric acid
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Abstract
The invention discloses a preparation method of starch citrate-stearate. The preparation method comprises the steps of raw material pretreatment, esterification, precipitation, suction filtration, washing, drying, grinding and other steps. Starch citrate-stearate prepared by utilizing the preparation method has better water and oil absorptivity and better processability, can be widely used in the food and pharmaceuticals industries and has better market prospects.
Description
Technical field
The invention belongs to modified starch and manufacture field, be specifically related to a kind of preparation method of citric acid-starch stearate.
Background technology
Microwave is the hertzian wave of frequency between 300MHz ~ 300GMz, and because microwave has, heating efficiency is high, good uniformity, penetrativity strong, good selective, as in a kind of novel energy widespread use food, chemical industry.
Starch stearate is a kind of longer chain fatty acid starch ester, is the esterified prod be obtained by reacting by starch and derivative thereof and stearic acid, methyl stearate, stearic or stearic anhydride.Due to the introducing of the organic carbochain of hydrophobicity, the hydrophobicity of starch increases, and makes it to have possessed hydrophilic and parents' character that is oleophylic, has emulsifying property, can be used on the fields such as food, medicine, material, household chemicals.Relevant organic solvent method prepares starch stearate, external existing many reports, such as SaiyavitVara etc. Dry synthesis sago and cassava starch stearate.
The present invention for raw material, prepares a kind of novel citric acid-starch stearate with the citric acid starch ester of high water absorbing capacity, to providing certain reference for the application in the food industry of citric acid-starch stearate.
Summary of the invention
The object of this invention is to provide a kind of preparation method of citric acid-starch stearate.The object of the invention is to realize by following technical scheme, it is characterized in that it comprises the following steps:
(1) raw materials pretreatment
1 ~ 3g stearic acid is dissolved in dehydrated alcohol, then adds 2g Novi letter lipase 435, then slowly add 100g citric acid starch ester, constantly stir the slurry obtaining mixing;
(2) esterification
The slurry mixed is placed in microwave reacting by heating 3.5 ~ 4.5min, constantly stirs during reaction;
(3) precipitate
Add after having reacted 10mL, 95% alcohol immersion 10 ~ 14min, product is fully precipitated;
(4) suction filtration, washing
Obtained precipitation is carried out suction filtration, then uses 60 DEG C of hot absolute ethanol washings 2 ~ 3 times;
(5) dry
By washing after be deposited in 60 ~ 70 DEG C of freeze-day with constant temperature 6 ~ 10h;
(6) pulverize
Dried precipitation is pulverized, then crosses 80 object sieves and obtain finished product.
beneficial effect of the present invention
1. citric acid of the present invention-starch stearate preparation method, has the advantages such as method is simple, easy to operate.
2. citric acid-starch stearate that the present invention produces is suitable for use as food and medical material.
Embodiment
The following examples can further illustrate the present invention, but do not limit the present invention in any way.
embodiment 1
1g stearic acid is dissolved in dehydrated alcohol, then adds 2g Novi letter lipase 435, then slowly add 100g citric acid starch ester, constantly stir the slurry obtaining mixing; The slurry mixed is placed in microwave reacting by heating 3.5min, constantly stirs during reaction; Add after having reacted 10mL, 95% alcohol immersion 10min, product is fully precipitated; Obtained precipitation is carried out suction filtration, then uses 60 DEG C of hot absolute ethanol washings 2 times; By washing after be deposited in 70 DEG C of freeze-day with constant temperature 6h; Dried precipitation is pulverized, then crosses 80 object sieves and obtain finished product.
embodiment 2
2g stearic acid is dissolved in dehydrated alcohol, then adds 2g Novi letter lipase 435, then slowly add 100g citric acid starch ester, constantly stir the slurry obtaining mixing; The slurry mixed is placed in microwave reacting by heating 4.0min, constantly stirs during reaction; Add after having reacted 10mL, 95% alcohol immersion 12min, product is fully precipitated; Obtained precipitation is carried out suction filtration, then uses 60 DEG C of hot absolute ethanol washings 3 times; By washing after be deposited in 60 DEG C of freeze-day with constant temperature 8h; Dried precipitation is pulverized, then crosses 80 object sieves and obtain finished product.
embodiment 3
3g stearic acid is dissolved in dehydrated alcohol, then adds 2g Novi letter lipase 435, then slowly add 100g citric acid starch ester, constantly stir the slurry obtaining mixing; The slurry mixed is placed in microwave reacting by heating 4.5min, constantly stirs during reaction; Add after having reacted 10mL, 95% alcohol immersion 14min, product is fully precipitated; Obtained precipitation is carried out suction filtration, then uses 65 DEG C of hot absolute ethanol washings 3 times; By washing after be deposited in 60 DEG C of freeze-day with constant temperature 10h; Dried precipitation is pulverized, then crosses 80 object sieves and obtain finished product.
the each embodiment product index of table 1
| Product | Water-intake rate | Oil absorbency | Emulsifying property | Emulsifying stability | Substitution value |
| a | 80% | 58% | 8% | 7% | 0.000 |
| b | 580% | 78% | 11% | 12% | 0.025 |
| c | 450% | 100% | 51% | 50% | 0.031 |
| d | 460% | 108% | 50% | 50% | 0.020 |
| e | 455% | 108% | 52% | 49% | 0.020 |
Note: a: potato ative starch; B: citric acid starch ester; C: the product that embodiment 1 is obtained; D: the product that embodiment 2 is obtained; E: the product that embodiment 3 is obtained.
Claims (1)
1. a preparation method for citric acid-starch stearate, is characterized in that comprising the following steps:
(1) raw materials pretreatment
1 ~ 3g stearic acid is dissolved in dehydrated alcohol, then adds 2g Novi letter lipase 435, then slowly add 100g citric acid starch ester, constantly stir the slurry obtaining mixing;
(2) esterification
The slurry mixed is placed in microwave reacting by heating 3.5 ~ 4.5min, constantly stirs during reaction;
(3) precipitate
Add after having reacted 10mL, 95% alcohol immersion 10 ~ 14min, product is fully precipitated;
(4) suction filtration, washing
Obtained precipitation is carried out suction filtration, then uses 60 DEG C of hot absolute ethanol washings 2 ~ 3 times;
(5) dry
By washing after be deposited in 60 ~ 70 DEG C of freeze-day with constant temperature 6 ~ 10h;
(6) pulverize
Dried precipitation is pulverized, then crosses 80 object sieves and obtain finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510562663.7A CN105061609A (en) | 2015-09-08 | 2015-09-08 | Preparation method of starch citrate-stearate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510562663.7A CN105061609A (en) | 2015-09-08 | 2015-09-08 | Preparation method of starch citrate-stearate |
Publications (1)
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| CN105061609A true CN105061609A (en) | 2015-11-18 |
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| CN201510562663.7A Pending CN105061609A (en) | 2015-09-08 | 2015-09-08 | Preparation method of starch citrate-stearate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112646047A (en) * | 2020-09-28 | 2021-04-13 | 重庆多典生物科技有限公司 | Organic acid glyceride starch, preparation method and application thereof, and organic acid glyceride starch-starch, preparation method and application thereof |
| CN112980903A (en) * | 2021-03-11 | 2021-06-18 | 哈尔滨商业大学 | Microwave-assisted bio-enzyme catalytic reaction verification method |
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| CN1749279A (en) * | 2005-10-12 | 2006-03-22 | 江南大学 | Process for preparing modified composite denatured starch by microwave acidiolysis and esterification |
| CN101942119A (en) * | 2010-09-28 | 2011-01-12 | 武汉绿舟环保科技有限公司 | Modified starch catalyzed by compound bio-enzymes and preparation method and application thereof |
| CN101974572A (en) * | 2010-07-29 | 2011-02-16 | 天津科技大学 | Method for preparing starch aliphatic ester by enzyme catalysis |
| CN103641922A (en) * | 2013-11-27 | 2014-03-19 | 广西大学 | Preparation method of double-esterified compound type starch |
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2015
- 2015-09-08 CN CN201510562663.7A patent/CN105061609A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1749279A (en) * | 2005-10-12 | 2006-03-22 | 江南大学 | Process for preparing modified composite denatured starch by microwave acidiolysis and esterification |
| CN101974572A (en) * | 2010-07-29 | 2011-02-16 | 天津科技大学 | Method for preparing starch aliphatic ester by enzyme catalysis |
| CN101942119A (en) * | 2010-09-28 | 2011-01-12 | 武汉绿舟环保科技有限公司 | Modified starch catalyzed by compound bio-enzymes and preparation method and application thereof |
| CN103641922A (en) * | 2013-11-27 | 2014-03-19 | 广西大学 | Preparation method of double-esterified compound type starch |
Non-Patent Citations (3)
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| 周永元等: "《纺织上浆疑难问题解答》", 31 August 2005, 中国纺织出版社 * |
| 周美等: "微波辅助干法制备高吸水率柠檬酸淀粉酯", 《食品与生物技术学报》 * |
| 王艳: "中长链脂肪酸淀粉酯的酶法合成及其性质研究", 《中国博士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112646047A (en) * | 2020-09-28 | 2021-04-13 | 重庆多典生物科技有限公司 | Organic acid glyceride starch, preparation method and application thereof, and organic acid glyceride starch-starch, preparation method and application thereof |
| CN112980903A (en) * | 2021-03-11 | 2021-06-18 | 哈尔滨商业大学 | Microwave-assisted bio-enzyme catalytic reaction verification method |
| CN112980903B (en) * | 2021-03-11 | 2023-02-28 | 哈尔滨商业大学 | Microwave-assisted bio-enzyme catalytic reaction verification method |
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Application publication date: 20151118 |