CN102432693A - 一种提取燕麦麸皮中β-葡聚糖的方法 - Google Patents

一种提取燕麦麸皮中β-葡聚糖的方法 Download PDF

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CN102432693A
CN102432693A CN2011104110670A CN201110411067A CN102432693A CN 102432693 A CN102432693 A CN 102432693A CN 2011104110670 A CN2011104110670 A CN 2011104110670A CN 201110411067 A CN201110411067 A CN 201110411067A CN 102432693 A CN102432693 A CN 102432693A
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beta
glucan
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CN102432693B (zh
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王昌涛
陈星玎
孙啸涛
李小鹏
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Beijing Technology and Business University
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Abstract

本发明公开了一种挤压法提取燕麦麸皮中β-葡聚糖的技术工艺。提取的具体步骤为:1)预处理:燕麦麸皮于90℃-120℃鼓风干燥1.5-2.2h,选取粒度为0.18mm-0.85mm的燕麦麸皮;2)挤压处理:在锥型双螺杆挤压机的温度为165℃-195℃、螺杆转速为140r/min-170r/min、物料水分为45%-65%、柠檬酸含量为0.6%-1.4%的参数条件下挤压;3)水提取:挤压后的燕麦麸皮进行水提得到β-葡聚糖。本发明操作方法具有简单、高效、生产成本低的特点,适合工业化生产,具有广泛的应用前景。

Description

一种提取燕麦麸皮中β-葡聚糖的方法
技术领域
本发明涉及一种利用挤压法提取燕麦麸皮中β-葡聚糖的方法。
背景技术
燕麦,又名雀麦、野麦,是一类重要的禾谷类粮食作物,世界上许多国家都有种植。燕麦麸皮是燕麦加工过程中被遗弃的产物,麸皮中包含了一定比例的胚乳,并且具有高比例的蛋白质和膳食纤维,在其水溶性膳食纤维中,最主要的成分是β-葡聚糖,具有调节血脂、血糖代谢和预防肠癌等多种疾病的作用。
挤压技术指经预处理的原料在一个由螺杆和套筒构成的相对密闭的空间里,受到机械力的作用后,通过一个专门设计的孔口而挤出的方法。挤压加工过程是一个高温、高压的过程,通过调节工况参数,可以方便地调节压力、剪切力、温度和作用时间。利用挤压技术的热、压效应,强化出料汽、汁、废料的排料分流,控制腔体内的温度和压力参数,对含粗纤维的物料挤压调质,可以在短时间内高效提取物料中不同理化性质的天然产物。
发明内容
本发明的目的是提供一种提取燕麦麸皮中β-葡聚糖的技术工艺。
本发明提供的挤压法提取β-葡聚糖的方法包括如下步骤:
1)将燕麦麸皮烘干,粉碎,过筛。
2)将所述的燕麦麸皮进行挤压,获得挤压组织化的燕麦麸皮。
3)对上述的挤压燕麦麸皮进行水提,获得β-葡聚糖。
步骤1)中的烘干温度为90℃-120℃、烘干时间为1.5-2.2h,选取的燕麦麸皮粒度为0.18mm-0.85mm。
步骤2)中的挤压工艺参数:挤压温度165℃-195℃、水分含量为45%-70%、螺杆转速140r/min-170r/min、柠檬酸含量为0.6%-1.4%。
步骤3)中的水提条件:提取温度75℃-85℃、提取时间2.8-3.5h、料液比1∶20-1∶35、pH值10.8-11.2。
另外,按照上述工艺方法提取得到的β-葡聚糖,也属于本发明的保护范围。
通过本发明提供的挤压法提取燕麦麸皮中β-葡聚糖的技术工艺进行提取,β-葡聚糖的得率达到24.36mg/g,而未经挤压法提取的燕麦麸皮β-葡聚糖得率为19.57mg/g。
附图说明
燕麦麸皮β-葡聚糖的提取工艺流程图
具体实施方式
1)将燕麦麸皮置于105℃的鼓风干燥箱中烘2h,把烘干的麸皮粉碎,过筛选取粒径0.25mm-0.85mm之间的麸皮。
2)称取2000g上述燕麦麸皮,调整水分含量为60%,柠檬酸含量为1.2%。
3)设置锥型双螺杆挤压机的挤压温度为180℃,螺杆转速为160r/min。
4)当挤压机达到设置的参数条件后,开始以恒定的喂料速度填喂经步骤2)处理过的燕麦麸皮,在挤压机的模头端接收挤压组织化后的燕麦麸皮。
5)将挤压组织化后的燕麦麸皮粉碎,称取5g,加入150mL蒸馏水,调pH为11,于80℃的恒温水浴锅震荡(140转/分钟)提取3h。
6)将经5)处理过的提取液于离心机10000r/min离心10min,收集上清液。
7)刚果红法测定β-葡聚糖的含量。
I、标准曲线绘制
准确移取2mL浓度为12.5、25、32.5、50、72.5μg/mL的β-葡聚糖标准溶液于10mL试管中,分别加入4.0mL刚果红溶液摇匀,25℃下充分反应10min,于550nm波长下测定吸光度。回归方程为:y=0.0038x-0.0162,R2=0.9999(y代表吸光度值,x代表β-葡聚糖含量μg/mL)。
II、β-葡聚糖含量测定
准确吸取0.1mLβ-葡聚糖样品溶液,加1.9mL蒸馏水,依方法I测定吸光度,根据标准曲线即可知样品中β-葡聚糖含量。

Claims (5)

1.一种提取燕麦麸皮中β-葡聚糖的方法,包括如下步骤:
1)将燕麦麸皮烘干,粉碎,得到燕麦麸皮粉末。
2)将所述的燕麦麸皮用锥型双螺杆挤压机进行挤压,获得挤压组织化的燕麦麸皮。
3)对上述的挤压燕麦麸皮进行水提,获得β-葡聚糖。
2.根据权利要求1所述方法,其特征在于:步骤1)中的烘干温度为90℃-120℃;中烘干时间为1.5-2.2h;筛选的燕麸皮粒度为0.18mm-0.85mm。
3.根据权利要求1~4所述的方法,其特征在于步骤2)中对燕麦麸皮进行挤压,挤压温度为165℃-195℃;螺杆转速为140r/min-170r/min;水分含量为45%-70%;柠檬酸含量为0.6%-1.4%。
4.根据权利要求1~8所述的方法,其特征在于步骤3)中燕麦麸皮提取温度为75℃-85℃;提取时间为2.8-3.5h;料液比为1∶20-1∶35;燕麦麸皮pH值为10.8-11.2。
5.权利要求1-4任一所述方法得到的β-葡聚糖。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104783040A (zh) * 2013-10-29 2015-07-22 株式会社燕麦生活 源自燕麦麸皮的食品组合物及其制造方法
CN108191992A (zh) * 2018-03-02 2018-06-22 南通振华生物工程有限公司 一种从燕麦麸皮中提取燕麦β-葡聚糖的方法
US10499663B2 (en) 2015-10-16 2019-12-10 Gold & Green Foods Oy Method of manufacturing a meat replacement product and a meat replacement food product

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CN1872884A (zh) * 2006-06-26 2006-12-06 甘肃奇正藏药有限公司 从青稞中富集β-葡聚糖的方法
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US20090068320A1 (en) * 2007-09-07 2009-03-12 Daniel Mark Johnson High bulk density compositions of beta-glucan and methods for making the same
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104783040A (zh) * 2013-10-29 2015-07-22 株式会社燕麦生活 源自燕麦麸皮的食品组合物及其制造方法
US10499663B2 (en) 2015-10-16 2019-12-10 Gold & Green Foods Oy Method of manufacturing a meat replacement product and a meat replacement food product
CN108191992A (zh) * 2018-03-02 2018-06-22 南通振华生物工程有限公司 一种从燕麦麸皮中提取燕麦β-葡聚糖的方法

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