CN100376170C - Preparation method of edible silk protein powder and silk essence - Google Patents
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Abstract
Description
【技术领域】【Technical field】
本发明涉及蚕丝蛋白，尤其涉及食用蚕丝蛋白粉的制备方法。The invention relates to silk protein, in particular to a preparation method of edible silk protein powder.
【背景技术】【Background technique】
天然蚕丝蛋白含有人体所需的18种氨基酸，是人体所需要的重要营养成分，它与人体具有极强的亲和性、安全性和良好的生物相容性，通过有效补充，能增进皮肤细胞的活力，促进新陈代谢。蚕丝蛋白中的甘氨酸含量高达36.8％，在生物体内所起的作用很大，它不仅是合成蛋白质的原料，还能对芳香族类有害物质起解毒作用，甘氨酸和缬氨酸有抗辐射、防止白血球下降作用，丝氨酸有防止衰老、防止白血球下降和生发的作用；亮氨酸和光氨酸有很高的营养价值，有防止衰老、促进新陈代谢和机体再生的作用。Natural silk protein contains 18 kinds of amino acids needed by the human body. It is an important nutrient component needed by the human body. It has strong affinity, safety and good biocompatibility with the human body. Through effective supplementation, it can enhance skin cells. Vitality, promote metabolism. The glycine content in silk protein is as high as 36.8%, which plays a great role in the living body. It is not only a raw material for protein synthesis, but also detoxifies aromatic harmful substances. Glycine and valine have anti-radiation, prevent White blood cell decline, serine can prevent aging, prevent white blood cell decline and hair growth; leucine and light acid have high nutritional value, prevent aging, promote metabolism and body regeneration.
近两年来，也有人提出开发丝饼干、丝糖果、丝蛋白果冻等丝蛋白食品及丝蛋白饮料，但是到目前为止，市场上还没有出现该类食品或饮料，也没有杂志、书刊或文献提出丝蛋白食品或丝蛋白饮料已经开发完成，也没有公开的文献提到丝蛋白食品或丝蛋白饮料的具体制备方法及加工工艺。In the past two years, some people have proposed to develop silk protein food and silk protein beverages such as silk biscuits, silk candies, and silk protein jelly, but so far, no such food or beverage has appeared on the market, and no magazines, books, periodicals or literature have proposed Silk protein food or silk protein beverage has been developed, and there is no published literature mentioning the specific preparation method and processing technology of silk protein food or silk protein beverage.
所以，如何利用废蚕丝通过合理的工艺加工出营养价值极高的丝蛋白粉及丝精成为农业科学人员研究的重要课题。Therefore, how to use waste silk to process silk protein powder and silk essence with high nutritional value through a reasonable process has become an important research topic for agricultural scientists.
【发明内容】【Content of invention】
本发明的目的就是解决现有技术中的问题，提出食用蚕丝蛋白粉及丝精的制备方法，利用废蚕丝加工出营养价值极高的食用蚕丝蛋白粉及丝精。The purpose of the present invention is to solve the problems in the prior art, propose a preparation method of edible silk protein powder and silk essence, and use waste silk to process edible silk protein powder and silk essence with high nutritional value.
为实现上述目的，本发明提出了食用蚕丝蛋白粉的制备方法，包括如下步骤：In order to achieve the above object, the present invention proposes a preparation method of edible silk protein powder, comprising the steps of:
除杂脱胶：将废蚕丝除去杂质后，加入到浓度为0.5％的稀碱水中，加热到80-85℃，搅拌脱胶30分钟，然后水洗凉干；Impurity removal and degumming: After removing impurities from waste silk, add it to dilute alkaline water with a concentration of 0.5%, heat to 80-85°C, stir and degumming for 30 minutes, then wash and dry in water;
受控酸解：将纯净干燥的废蚕丝剪碎后放入回流瓶中，然后加入浓度为10％左右的稀盐酸溶液中，加热到90-95℃，再回流，受控酸解6-8小时；Controlled acid hydrolysis: Cut the pure and dry waste silk into pieces and put it into a reflux bottle, then add it into a dilute hydrochloric acid solution with a concentration of about 10%, heat it to 90-95°C, and then reflux, controlled acid hydrolysis for 6-8 Hour;
中和：加入浓度为10％左右的稀碱溶液，并搅拌中和；Neutralization: add a dilute alkali solution with a concentration of about 10%, and stir to neutralize;
分离纯化：对混合物进行过滤，然后水洗，并分离纯化出固态物和液体丝肽；Separation and purification: filter the mixture, then wash with water, and separate and purify the solid and liquid silk peptide;
减压干燥：将固态物进行减压干燥；Drying under reduced pressure: dry the solid under reduced pressure;
粉碎：将干燥的固态物粉碎；Crushing: crushing dry solids;
灭菌：对粉碎的粉末进行灭菌处理后得到可以食用的丝蛋白粉。Sterilization: Sterilize the pulverized powder to obtain edible silk protein powder.
作为优选，受控酸解中的受控酸解时间为6小时。Preferably, the controlled acid hydrolysis time in the controlled acid hydrolysis is 6 hours.
作为优选，受控酸解中的受控酸解时间为7小时。Preferably, the controlled acid hydrolysis time in the controlled acid hydrolysis is 7 hours.
作为优选，受控酸解中的受控酸解时间为8小时。Preferably, the controlled acid hydrolysis time in the controlled acid hydrolysis is 8 hours.
为实现上述目的，本发明还提出了食用丝精的制备方法，包括如下步骤：In order to achieve the above object, the present invention also proposes a preparation method of edible silk essence, comprising the following steps:
除杂脱胶：将废蚕丝除去杂质后，加入到浓度为0.5％的稀碱水中，加热到80-85℃，搅拌脱胶30分钟，然后水洗凉干；Impurity removal and degumming: After removing impurities from waste silk, add it to dilute alkaline water with a concentration of 0.5%, heat to 80-85°C, stir and degumming for 30 minutes, then wash and dry in water;
受控酸解：将纯净干燥的废蚕丝剪碎后放入回流瓶中，然后加入浓度为10％左右的稀盐酸溶液中，加热到90-95℃，再回流，受控酸解6-8小时；Controlled acid hydrolysis: Cut the pure and dry waste silk into pieces and put it into a reflux bottle, then add it into a dilute hydrochloric acid solution with a concentration of about 10%, heat it to 90-95°C, and then reflux, controlled acid hydrolysis for 6-8 Hour;
中和：加入浓度为10％左右的稀碱溶液，并搅拌中和；Neutralization: add a dilute alkali solution with a concentration of about 10%, and stir to neutralize;
分离纯化：对混合物进行过滤，然后水洗，并分离纯化出固态物和液体丝肽；Separation and purification: filter the mixture, then wash with water, and separate and purify the solid and liquid silk peptide;
除去盐份：将液体丝肽通过渗透膜除去盐份；Salt removal: the liquid silk peptide is passed through the permeable membrane to remove the salt;
喷雾干燥：将除去盐份的液体丝肽经喷雾干燥器进行喷雾干燥后得到可以食用的丝精。Spray drying: the liquid silk peptide from which the salt has been removed is spray-dried by a spray dryer to obtain edible silk essence.
作为优选，受控酸解中的受控酸解时间为6小时。Preferably, the controlled acid hydrolysis time in the controlled acid hydrolysis is 6 hours.
作为优选，受控酸解中的受控酸解时间为7小时。Preferably, the controlled acid hydrolysis time in the controlled acid hydrolysis is 7 hours.
作为优选，受控酸解中的受控酸解时间为8小时。Preferably, the controlled acid hydrolysis time in the controlled acid hydrolysis is 8 hours.
本发明的有益效果：本发明利用废蚕丝采用合理的工艺加工制备出营养价值极高的食用蚕丝蛋白粉及丝精，变废为宝，充分利用了农副产品资源，具有较高的经济价值，提高了农副产品的经济效益和实用价值；采用该工艺开发出了具有降血糖功能的纯蚕丝营养品，纯天然，无毒副作用，可以补充人体所需的营养成分。Beneficial effects of the present invention: the present invention utilizes waste silk and adopts a reasonable process to prepare edible silk protein powder and silk extract with high nutritional value, turning waste into wealth, making full use of agricultural and sideline product resources, and having high economic value. The economic benefit and practical value of the agricultural and sideline products are improved; the pure silk nutritional product with the function of lowering blood sugar has been developed by using this process, which is pure natural, has no toxic and side effects, and can supplement the nutritional ingredients required by the human body.
本发明的特征及优点将通过实施例结合附图进行详细说明。The features and advantages of the present invention will be described in detail with reference to the accompanying drawings.
【附图说明】【Description of drawings】
图1是本发明食用蚕丝蛋白粉及丝精的制备方法的流程图。Fig. 1 is the flow chart of the preparation method of edible silk protein powder and silk essence of the present invention.
【具体实施方式】【Detailed ways】
实施例一：Embodiment one:
如图1所示为本发明食用蚕丝蛋白粉及丝精的制备方法的流程图。主要包括除杂脱胶1、受控酸解2、中和3、分离纯化4，分离纯化4后将固态物加工成蚕丝蛋白粉。加工蚕丝蛋白粉的步骤还包括减压干燥51、粉碎52、灭菌53。工艺步骤的具体操作如下：As shown in Figure 1 is the flow chart of the preparation method of edible silk protein powder and silk essence of the present invention. It mainly includes impurity removal and degumming 1, controlled
除杂脱胶1：将废蚕丝除去杂质后，加入到浓度为0.5％的稀碱水中，加热到80-85℃，搅拌脱胶30分钟，然后水洗凉干；Impurity removal and degumming 1: After removing impurities from waste silk, add it to dilute alkaline water with a concentration of 0.5%, heat to 80-85°C, stir and degumming for 30 minutes, then wash with water and dry;
受控酸解2：将纯净干燥的废蚕丝剪碎后放入回流瓶中，然后加入浓度为10％左右的稀盐酸溶液中，加热到90-95℃，再回流，受控酸解6-8小时；该步骤为关键步骤，回流时要注意防止爆沸；根据最终产品的要求，受控酸解时间要进行适当调节，可以采用6小时、7小时、8小时或其它合适的反应时间。Controlled acid hydrolysis 2: Cut the pure and dry waste silk into pieces and put them into the reflux bottle, then add dilute hydrochloric acid solution with a concentration of about 10%, heat to 90-95°C, and then reflux, controlled acid hydrolysis 6- 8 hours; this step is a key step, and attention should be paid to prevent bumping during reflux; according to the requirements of the final product, the controlled acid hydrolysis time should be properly adjusted, and 6 hours, 7 hours, 8 hours or other suitable reaction times can be used.
中和3：加入浓度为10％左右的稀碱溶液，并搅拌中和；Neutralization 3: Add a dilute alkali solution with a concentration of about 10%, and stir to neutralize;
分离纯化4：对混合物进行过滤，然后水洗，并分离纯化出固态物和液体丝肽；Separation and purification 4: filter the mixture, then wash with water, and separate and purify the solid and liquid silk peptide;
减压干燥51：将固态物进行减压干燥；Drying under reduced pressure 51: drying the solid matter under reduced pressure;
粉碎52：将干燥的固态物粉碎；Pulverizing 52: pulverizing the dry solid;
灭菌53：对粉碎的粉末进行灭菌处理后得到可以食用的丝蛋白粉。Sterilization 53: Sterilize the pulverized powder to obtain edible silk protein powder.
加工出的丝蛋白粉为不溶性固体，分子量较大，生产成本相对较低。The processed silk protein powder is an insoluble solid with relatively high molecular weight and relatively low production cost.
实施例二：Embodiment two:
分离纯化4后将液体丝肽加工成丝精。加工丝精的步骤还包括除去盐份61和喷雾干燥62。工艺步骤的具体操作如下：After separation and purification 4, the liquid silk peptide is processed into silk essence. The steps of processing silk fines also include desalting 61 and spray drying 62 . The concrete operation of process step is as follows:
除杂脱胶1：将废蚕丝除去杂质后，加入到浓度为0.5％的稀碱水中，加热到80-85℃，搅拌脱胶30分钟，然后水洗凉干；Impurity removal and degumming 1: After removing impurities from waste silk, add it to dilute alkaline water with a concentration of 0.5%, heat to 80-85°C, stir and degumming for 30 minutes, then wash with water and dry;
受控酸解2：将纯净干燥的废蚕丝剪碎后放入回流瓶中，然后加入浓度为10％左右的稀盐酸溶液中，加热到90-95℃，再回流，受控酸解6-8小时；该步骤为关键步骤，回流时要注意防止爆沸；根据最终产品的要求，受控酸解时间要进行适当调节，可以采用6小时、7小时、8小时或其它合适的反应时间。Controlled acid hydrolysis 2: Cut the pure and dry waste silk into pieces and put them into the reflux bottle, then add dilute hydrochloric acid solution with a concentration of about 10%, heat to 90-95°C, and then reflux, controlled acid hydrolysis 6- 8 hours; this step is a key step, and attention should be paid to prevent bumping during reflux; according to the requirements of the final product, the controlled acid hydrolysis time should be properly adjusted, and 6 hours, 7 hours, 8 hours or other suitable reaction times can be used.
中和3：加入浓度为10％左右的稀碱溶液，并搅拌中和；Neutralization 3: Add a dilute alkali solution with a concentration of about 10%, and stir to neutralize;
分离纯化4：对混合物进行过滤，然后水洗，并分离纯化出固态物和液体丝肽；Separation and purification 4: filter the mixture, then wash with water, and separate and purify the solid and liquid silk peptide;
除去盐份61：将液体丝肽通过渗透膜除去盐份；Salt removal 61: pass liquid silk peptide through permeable membrane to remove salt;
喷雾干燥62：将除去盐份的液体丝肽经喷雾干燥器进行喷雾干燥后得到可以食用的丝精。Spray drying 62: The liquid silk peptide from which the salt has been removed is spray-dried by a spray dryer to obtain edible silk essence.
加工出的丝精为水溶性固体，分子量较小，生产成本相对较高，但是人体更易吸收。The processed silk essence is a water-soluble solid with a small molecular weight and relatively high production cost, but it is easier for the human body to absorb.
上述实施方式是对本发明的进一步说明，不是对本发明的具体限定，任何对本方法中个别步骤的简单替换后的方法均属于本发明的保护范围。The above embodiment is a further description of the present invention, not a specific limitation of the present invention, and any method after simple replacement of individual steps in the method falls within the scope of protection of the present invention.
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| CN101601640B (en) * | 2009-05-22 | 2011-04-13 | 苏州大学 | Cocoon sericin layer alcohol soluble substance and preparation method thereof |
| CN102885296B (en) * | 2011-07-21 | 2013-12-25 | 成都永康制药有限公司 | Formula of dietary supplement for female health care |
| CN104099202A (en) * | 2014-07-10 | 2014-10-15 | 无锡蚕魅科技有限公司 | Mixed fibroin amino acid beer and production technology thereof |
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| CN1823606A (en) | 2006-08-30 |
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