CN104222738A - 一种葡甘聚糖高活性可溶纤维的制备方法 - Google Patents
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Abstract
本发明公开了一种葡甘聚糖高活性可溶纤维的制备方法,具体步骤如下:①制备魔芋微粉;②制淀粉真菌发酵液;③酶解制得葡甘聚糖高活性可溶纤维初品;④浸提制得高纯度葡甘聚糖高活性可溶纤维;⑤微波干燥制得葡甘聚糖高活性可溶纤维产品。应用该方法所制备的葡甘聚糖高活性可溶纤维具有高粘度性,很好的成膜性、韧性和抗冻性,附着力强等特性,可作为生产植物型保鲜膜、内外墙涂料、魔芋葡甘聚糖树脂的原料。
Description
技术领域
本发明涉及纤维制备技术领域,具体涉及一种葡甘聚糖高活性可溶纤维的制备方法。
背景技术
魔芋为天南星科魔芋属植物的球状块茎,主要化学成分为魔芋葡甘聚糖(简称KGM)。葡甘聚糖是一种非离子型水溶性高分子多糖,分子量为200000~2000000,是目前所发现的植物类水溶性食用胶中黏度最高的一种。葡甘聚糖(KGM)是一种水溶性膳食纤维,具有国内外公认的保健功能。它能有效治疗高血脂、高胆固醇、冠心病、肥胖病、肿瘤、便秘等日益多发的“文明病”。因而魔芋葡甘聚糖也是一种具有代表性的高纤维、低脂肪、低热量的功能性食品。
目前,从魔芋中制取的纤维主要为可溶性膳食纤维,如授权公告号为CN1086276C、专利名称为一种用魔芋精粉制取可溶性膳食纤维的方法的中国专利,所制备的可溶性膳食纤维可作为功能性饮料食品开发,如作为固体饮料、方便食品添加剂、膳食纤维复合果汁饮料、膳食纤维蔬菜汁饮料等。这种方法所制备的可溶性膳食纤维较适用于作为食品,而不适用于作为生产植物型保鲜膜、内外墙涂料、魔芋葡甘聚糖树脂的原料。
发明内容
本发明所解决的技术问题是提供一种葡甘聚糖高活性可溶纤维的制备方法,应用该方法所制备的葡甘聚糖高活性可溶纤维具有高粘度性,很好的成膜性、韧性和抗冻性,附着力强,健康环保等性能,可作为生产植物型保鲜膜、内外墙涂料、魔芋葡甘聚糖树脂的原料。
本发明所采用的技术方案是:一种葡甘聚糖高活性可溶纤维的制备方法,具体步骤如下:
①制备魔芋微粉:通过气流粉碎机将魔芋制成魔芋精粉;
②制淀粉真菌发酵液:将木薯淀粉和竹壳纤维粉加入纯水中,在40~60℃保温条件下加入β-淀粉酶,并不断搅拌10~16小时,当粘度在6~8mPa·s时停止搅拌,静置22~26小时,吸出上层清液,制得淀粉真菌发酵液;所述纯水、木薯淀粉、竹壳纤维粉、β-淀粉酶的重量配比为:纯水100份,木薯淀粉0.5~5份,竹壳纤维粉1~10份,β-淀粉酶0.01~0.2份;
③酶解:将魔芋微粉溶于纯水中,在40~60℃保温条件下搅拌加入淀粉真菌发酵液,并不断搅拌10~14小时,当粘度在5~7mPa·s时停止搅拌,加热至100℃灭酶终止反应,再静置10~14小时,吸取上层清液,将上层清液在50~60℃温度下真空浓缩干燥,制得葡甘聚糖高活性可溶纤维初品;所述纯水、魔芋微粉、淀粉真菌发酵液的重量配比为:纯水100份,魔芋微粉1~10份,淀粉真菌发酵液0.2~2份;
④浸提:将葡甘聚糖高活性可溶纤维初品用质量百分浓度为70%~90%的乙醇浸泡0.5~2小时,再用胶体磨充分磨解后离心脱水,然后用质量百分浓度为90%~96%的乙醇反复萃取1~3次,制得高纯度葡甘聚糖高活性可溶纤维;
⑤微波干燥:将高纯度葡甘聚糖高活性可溶纤维用微波干燥,干燥温度控制在60~90℃,干燥时间为10~30分钟,制得葡甘聚糖高活性可溶纤维产品。
一种葡甘聚糖高活性可溶纤维的制备方法,优选步骤如下:
①制备魔芋微粉:通过气流粉碎机将魔芋制成魔芋精粉;
②制淀粉真菌发酵液:将木薯淀粉和竹壳纤维粉加入纯水中,在40~60℃保温条件下加入β-淀粉酶,并不断搅拌12小时,当粘度在6~8mPa·s时停止搅拌,静置24小时,吸出上层清液,制得淀粉真菌发酵液;所述纯水、木薯淀粉、竹壳纤维粉、β-淀粉酶的重量配比为:纯水100份,木薯淀粉2.5份,竹壳纤维粉5份,β-淀粉酶0.1份;
③酶解:将魔芋微粉溶于纯水中,在40~60℃保温条件下搅拌加入淀粉真菌发酵液,并不断搅拌12小时,当粘度在5~7mPa·s时停止搅拌,加热至100℃灭酶终止反应,再静置12小时,吸取上层清液,将上层清液在50~60℃温度下真空浓缩干燥,制得葡甘聚糖高活性可溶纤维初品;所述纯水、魔芋微粉、淀粉真菌发酵液的重量配比为:纯水100份,魔芋微粉5份,淀粉真菌发酵液0.5份;
④浸提:将葡甘聚糖高活性可溶纤维初品用质量百分浓度为90%的乙醇浸泡1小时,再用胶体磨充分磨解后离心脱水,然后用质量百分浓度为96%的乙醇反复萃取3次,制得高纯度葡甘聚糖高活性可溶纤维;
⑤微波干燥:将浸提后的高纯度葡甘聚糖高活性可溶纤维用微波干燥,干燥温度控制在60~90℃,干燥时间为20分钟,制得葡甘聚糖高活性可溶纤维产品。
本发明的有益效果是:
1、本发明以植物魔芋为主要原料,通过一定的化学和物理过程,从而改善葡甘聚糖的分子链及其高粘度等特性,得到高活性的葡甘聚糖可溶纤维,可作为生产植物型保鲜膜、内外墙涂料、魔芋葡甘聚糖树脂的原料,解决塑料包装膜、树脂、涂料使用大量有毒有害溶剂、影响人体健康等问题;
2、本发明创造性地采用木薯淀粉、竹壳纤维粉、β-淀粉酶制得淀粉真菌发酵液,并利用该淀粉真菌发酵液对魔芋微粉进行酶解,其中木薯淀粉具有很好的增稠、粘结、膨化、稳定和增量等作用,由于木薯淀粉中支链淀粉与直链淀粉的比率高达80︰20,因此具有很高的尖峰粘度,与葡甘聚糖有很好协同效应,而竹壳纤维粉中微小纤维,在葡甘聚糖制品中可以起到牵制拉伸作用,在制品中可以起到“钢筋”作用,提高制品的强度和韧性,从而使所制得的葡甘聚糖高活性可溶纤维具有高粘度性,很好的成膜性、韧性和抗冻性,附着力强等性能;
3、本发明所制得葡甘聚糖高活性可溶纤维用于生产魔芋保鲜膜,具有高粘度性、很好的成膜性,且形成的膜致密,光滑,平整,无气泡,具有抑菌效果,并能阻止有害成分向食品中迁移等特点,可广泛用于食品保鲜和食品包装;
4、本发明所制得葡甘聚糖高活性可溶纤维用于生产魔芋内外墙涂料,能提高涂料的附着强度、韧性和表面光洁度,提高抗冻性,健康环保;
5、本发明所制得葡甘聚糖高活性可溶纤维用于生产魔芋葡甘聚糖树脂,可大大缩短合成魔芋葡甘聚糖基树脂的时间,制得的魔芋葡甘聚糖树脂可以部分替代合成类树脂,能广泛应用于生物化学、医学、农业、日用化工等领域。具有成本低、环保易降解、工艺简单的特点;
6、本发明采用微波干燥的方法,该方法具有干燥均匀、速度快、高效节能的优点,同时由于受热时间短,可以提高葡甘聚糖高活性可溶纤维的白度。
具体实施方式
下面结具体实施例对本发明做进一步的说明。
实施例1:
一种葡甘聚糖高活性可溶纤维的制备方法,优选步骤如下:
①制备魔芋微粉:通过气流粉碎机将魔芋制成魔芋精粉;
②制淀粉真菌发酵液:将木薯淀粉和竹壳纤维粉加入纯水中,在40~60℃保温条件下加入β-淀粉酶,并不断搅拌12小时,当粘度在6~8mPa·s时停止搅拌,静置24小时,吸出上层清液,制得淀粉真菌发酵液;所述纯水、木薯淀粉、竹壳纤维粉、β-淀粉酶的重量配比为:纯水100份,木薯淀粉2.5份,竹壳纤维粉5份,β-淀粉酶0.1份;
③酶解:将魔芋微粉溶于纯水中,在40~60℃保温条件下搅拌加入淀粉真菌发酵液,并不断搅拌12小时,当粘度在5~7mPa·s时停止搅拌,加热至100℃灭酶终止反应,再静置12小时,吸取上层清液,将上层清液在50~60℃温度下真空浓缩干燥,制得葡甘聚糖高活性可溶纤维初品;所述纯水、魔芋微粉、淀粉真菌发酵液的重量配比为:纯水100份,魔芋微粉5份,淀粉真菌发酵液0.5份;
④浸提:将葡甘聚糖高活性可溶纤维初品用质量百分浓度为90%的乙醇浸泡1小时,再用胶体磨充分磨解后离心脱水,然后用质量百分浓度为96%的乙醇反复萃取3次,制得高纯度葡甘聚糖高活性可溶纤维;
⑤微波干燥:将浸提后的高纯度葡甘聚糖高活性可溶纤维用微波干燥,干燥温度控制在60~90℃,干燥时间为20分钟,制得葡甘聚糖高活性可溶纤维产品,经检测,纯度:>99%,水分:<1%,溶解度:冷水速溶,粘度:23600mPa·s(葡甘聚糖高活性可溶纤维︰水=1︰60溶解)。
实施例2:
一种葡甘聚糖高活性可溶纤维的制备方法,具体步骤如下:
①制备魔芋微粉:通过气流粉碎机将魔芋制成魔芋精粉;
②制淀粉真菌发酵液:将木薯淀粉和竹壳纤维粉加入纯水中,在40~60℃保温条件下加入β-淀粉酶,并不断搅拌10小时,当粘度在6~8mPa·s时停止搅拌,静置22小时,吸出上层清液,制得淀粉真菌发酵液;所述纯水、木薯淀粉、竹壳纤维粉、β-淀粉酶的重量配比为:纯水100份,木薯淀粉0.5份,竹壳纤维粉1份,β-淀粉酶0.01份;
③酶解:将魔芋微粉溶于纯水中,在40~60℃保温条件下搅拌加入淀粉真菌发酵液,并不断搅拌10小时,当粘度在5~7mPa·s时停止搅拌,加热至100℃灭酶终止反应,再静置10小时,吸取上层清液,将上层清液在50~60℃温度下真空浓缩干燥,制得葡甘聚糖高活性可溶纤维初品;所述纯水、魔芋微粉、淀粉真菌发酵液的重量配比为:纯水100份,魔芋微粉1份,淀粉真菌发酵液0.2份;
④浸提:将葡甘聚糖高活性可溶纤维初品用质量百分浓度为70%的乙醇浸泡0.5小时,再用胶体磨充分磨解后离心脱水,然后用质量百分浓度为90%的乙醇反复萃取1次,制得高纯度葡甘聚糖高活性可溶纤维;
⑤微波干燥:将高纯度葡甘聚糖高活性可溶纤维用微波干燥,干燥温度控制在60~90℃,干燥时间为10分钟,制得葡甘聚糖高活性可溶纤维产品,经检测,纯度:>99%,水分:<1%,溶解度:冷水速溶,粘度:23200mPa·s(葡甘聚糖高活性可溶纤维︰水=1︰60溶解)。
实施例3:
一种葡甘聚糖高活性可溶纤维的制备方法,具体步骤如下:
①制备魔芋微粉:通过气流粉碎机将魔芋制成魔芋精粉;
②制淀粉真菌发酵液:将木薯淀粉和竹壳纤维粉加入纯水中,在40~60℃保温条件下加入β-淀粉酶,并不断搅拌16小时,当粘度在6~8mPa·s时停止搅拌,静置26小时,吸出上层清液,制得淀粉真菌发酵液;所述纯水、木薯淀粉、竹壳纤维粉、β-淀粉酶的重量配比为:纯水100份,木薯淀粉5份,竹壳纤维粉10份,β-淀粉酶0.2份;
③酶解:将魔芋微粉溶于纯水中,在40~60℃保温条件下搅拌加入淀粉真菌发酵液,并不断搅拌14小时,当粘度在5~7mPa·s时停止搅拌,加热至100℃灭酶终止反应,再静置14小时,吸取上层清液,将上层清液在50~60℃温度下真空浓缩干燥,制得葡甘聚糖高活性可溶纤维初品;所述纯水、魔芋微粉、淀粉真菌发酵液的重量配比为:纯水100份,魔芋微粉10份,淀粉真菌发酵液2份;
④浸提:将葡甘聚糖高活性可溶纤维初品用质量百分浓度为90%的乙醇浸泡2小时,再用胶体磨充分磨解后离心脱水,然后用质量百分浓度为96%的乙醇反复萃取3次,制得高纯度葡甘聚糖高活性可溶纤维;
⑤微波干燥:将高纯度葡甘聚糖高活性可溶纤维用微波干燥,干燥温度控制在60~90℃,干燥时间为30分钟,制得葡甘聚糖高活性可溶纤维产品,经检测,纯度:>99%,水分:<1%,溶解度:冷水速溶,粘度:23900mPa·s(葡甘聚糖高活性可溶纤维︰水=1︰60溶解)。
Claims (2)
1.一种葡甘聚糖高活性可溶纤维的制备方法,其特征在于,具体步骤如下:
①制备魔芋微粉:通过气流粉碎机将魔芋制成魔芋精粉;
②制淀粉真菌发酵液:将木薯淀粉和竹壳纤维粉加入纯水中,在40~60℃保温条件下加入β-淀粉酶,并不断搅拌10~16小时,当粘度在6~8mPa·s时停止搅拌,静置22~26小时,吸出上层清液,制得淀粉真菌发酵液;所述纯水、木薯淀粉、竹壳纤维粉、β-淀粉酶的重量配比为:纯水100份,木薯淀粉0.5~5份,竹壳纤维粉1~10份,β-淀粉酶0.01~0.2份;
③酶解:将魔芋微粉溶于纯水中,在40~60℃保温条件下搅拌加入淀粉真菌发酵液,并不断搅拌10~14小时,当粘度在5~7mPa·s时停止搅拌,加热至100℃灭酶终止反应,再静置10~14小时,吸取上层清液,将上层清液在50~60℃温度下真空浓缩干燥,制得葡甘聚糖高活性可溶纤维初品;所述纯水、魔芋微粉、淀粉真菌发酵液的重量配比为:纯水100份,魔芋微粉1~10份,淀粉真菌发酵液0.2~2份;
④浸提:将葡甘聚糖高活性可溶纤维初品用质量百分浓度为70%~90%的乙醇浸泡0.5~2小时,再用胶体磨充分磨解后离心脱水,然后用质量百分浓度为90%~96%的乙醇反复萃取1~3次,制得高纯度葡甘聚糖高活性可溶纤维;
⑤微波干燥:将高纯度葡甘聚糖高活性可溶纤维用微波干燥,干燥温度控制在60~90℃,干燥时间为10~30分钟,制得葡甘聚糖高活性可溶纤维产品。
2.根据权利要求1所述的葡甘聚糖高活性可溶纤维的制备方法,其特征在于,具体步骤如下:
①制备魔芋微粉:通过气流粉碎机将魔芋制成魔芋精粉;
②制淀粉真菌发酵液:将木薯淀粉和竹壳纤维粉加入纯水中,在40~60℃保温条件下加入β-淀粉酶,并不断搅拌12小时,当粘度在6~8mPa·s时停止搅拌,静置24小时,吸出上层清液,制得淀粉真菌发酵液;所述纯水、木薯淀粉、竹壳纤维粉、β-淀粉酶的重量配比为:纯水100份,木薯淀粉2.5份,竹壳纤维粉5份,β-淀粉酶0.1份;
③酶解:将魔芋微粉溶于纯水中,在40~60℃保温条件下搅拌加入淀粉真菌发酵液,并不断搅拌12小时,当粘度在5~7mPa·s时停止搅拌,加热至100℃灭酶终止反应,再静置12小时,吸取上层清液,将上层清液在50~60℃温度下真空浓缩干燥,制得葡甘聚糖高活性可溶纤维初品;所述纯水、魔芋微粉、淀粉真菌发酵液的重量配比为:纯水100份,魔芋微粉5份,淀粉真菌发酵液0.5份;
④浸提:将葡甘聚糖高活性可溶纤维初品用质量百分浓度为90%的乙醇浸泡1小时,再用胶体磨充分磨解后离心脱水,然后用质量百分浓度为96%的乙醇反复萃取3次,制得高纯度葡甘聚糖高活性可溶纤维;
⑤微波干燥:将浸提后的高纯度葡甘聚糖高活性可溶纤维用微波干燥,干燥温度控制在60~90℃,干燥时间为20分钟,制得葡甘聚糖高活性可溶纤维产品。
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JP2010200610A (ja) * | 2009-02-27 | 2010-09-16 | Toshiko Shimizu | こんにゃく粉の製造方法と食品 |
CN103271308A (zh) * | 2013-06-18 | 2013-09-04 | 西南大学 | 高透明度魔芋粉制备方法 |
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