CN103478736A - 一种芸豆渣膳食纤维的制备工艺 - Google Patents
一种芸豆渣膳食纤维的制备工艺 Download PDFInfo
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Abstract
本发明公开了一种芸豆渣膳食纤维的制备工艺,该芸豆渣膳食纤维以芸豆渣为主要原料,经原料预处理、碱处理、水洗、酶水解、灭酶、水洗、动态高压微射流处理、喷雾干燥、超微粉碎得到最终产品。芸豆渣膳食纤维的制备工艺包括:原料预处理、碱处理、水洗、酶水解、灭酶、水洗、动态高压微射流处理、喷雾干燥、超微粉碎。本工艺制备的膳食纤维,溶解度高、呈乳白色,口感细腻,既可作为直接食用的食疗型膳食纤维制品,又可用作食品添加剂或膳食纤维强化剂添加到酸奶、面包等食品中。
Description
技术领域
本发明涉及一种膳食纤维的制备工艺,具体地说,涉及一种芸豆渣膳食纤维的制备工艺。
背景技术
膳食纤维是人类健康所必需的营养成分之一,被称为除了水、蛋白质、糖类、脂类、维生素、矿物质六大营养素之外的第七营养素,是当前国际上公认的最具开发潜力的功能性食品基料。膳食纤维不仅具有保水性、保油性、改进食品色泽及风味等作用,而且可以作为一种有效的功能性保健食品预防多种疾病:如在消化道内吸水膨胀,促进肠道蠕动,预防便秘、抑制肠癌发生;延缓糖类物质的吸收,抑制血糖的上升,使胰岛素分泌下降,调节糖尿病人的血糖水平;抑制胆固醇的吸收,预防高血脂症和高血压等。中国营养学会提出中国居民摄入的食物纤维量及范围:低能量饮食1800kcal为25g/天;中等能量饮食2400kcal为30g/天。
目前市场上已开发的膳食纤维产品,主要是从麸皮、大豆渣、甜菜渣、红薯渣等原料中提取。芸豆是普通菜豆和多花菜豆的总称,具有很高的营养价值和药用价值,其中膳食纤维含量约2.1g/100g。我国芸豆资源丰富,是芸豆的主要生产国和出口国。据统计,我国芸豆总产量在2003年已达到58万吨。然而目前国内从事芸豆加工的企业很少,加工技术滞后,经常造成不必要的损失,而且尚未开发出具有竞争力的品牌产品,利用芸豆渣制备膳食纤维可以为芸豆资源综合利用提供一条有效途径,对促进我国芸豆产业的发展具有重要意义。
发明内容
本发明的目的是提供一种芸豆渣膳食纤维的制备工艺,该工艺以芸豆渣为主要原料,经原料预处理、碱处理、水洗、酶水解、灭酶、水洗、动态高压微射流处理、喷雾干燥、超微粉碎等工序制备而成的一种高活性膳食纤维。
本发明目的通过下述技术方案来实现:
一种芸豆渣膳食纤维的制备工艺,以芸豆渣为主要原料,具体制备步骤为:
① 称取一定量芸豆渣,按固液比1:10加水制成悬浮液;
② 碱处理:加入5%NaOH调节溶液pH=12,加热至70℃保温60min;
③ 冷却后过滤水洗至中性;
④ 酶水解:按固液比1:10加水制成悬浮液,用稀盐酸调节溶液pH=6,往悬浮液中加入与芸豆渣比例为1:0.01的木瓜蛋白酶,加热至65℃保温60min;
⑤ 灭酶:加热至90℃保温10min;
⑥ 冷却后过滤水洗至中性;
⑦ 按固液比1:35加入水,在30~40MPa压力下进行均质;
⑧ 动态高压微射流100MPa处理一次;
⑨ 喷雾干燥:对膳食纤维进行喷雾干燥处理,控制进风温度在205~215℃,出风温度在90~95℃;
⑩ 超微化处理:用碾磨式超微粉碎,控制转速20r/s,粉碎时间4.8h,产品粒度80%小于5um。
本发明的有益效果:本发明采用酶解去蛋白、动态高压微射流处理,工艺简单,而且提高了可溶性膳食纤维含量,膳食纤维产品不仅可以平衡膳食结构,均衡人体营养,预防多种疾病,而且为芸豆资源综合利用提供了一条有效途径,并且生产出的芸豆渣膳食纤维,可溶性膳食纤维含量高,膳食纤维持水性和膨胀力增强,产品口感细腻。
具体实施方式
称取500g芸豆渣,加入5000mL水制成悬浮液;用 5%NaOH调节溶液pH=12,加热至70℃保温60min;冷却后过滤水洗至中性;重新加入5000mL水制成悬浮液,用稀盐酸调节pH=6,加入5g木瓜蛋白酶,加热至65℃保温60min;加热至90℃保温10min进行灭酶;冷却后过滤水洗至中性;按固液比1:35加入水,在30~40MPa压力下均质一次;动态高压微射流100MPa处理一次;控制进风温度在205~215℃,出风温度在90~95℃对膳食纤维进行喷雾干燥;采用碾磨式超微粉碎,控制转速20r/s,粉碎时间4.8h,产品粒度80%小于5um。
Claims (1)
1.一种芸豆渣膳食纤维的制备工艺,其特征在于:以芸豆渣为主要原料,具体制备步骤为:
① 称取一定量芸豆渣,按固液比1:10加水制成悬浮液;
② 碱处理:加入5%NaOH调节溶液pH=12,加热至70℃保温60min;
③ 冷却后过滤水洗至中性;
④ 酶水解:按固液比1:10加水制成悬浮液,用稀盐酸调节溶液pH=6,往悬浮液中加入与芸豆渣比例为1:0.01的木瓜蛋白酶,加热至65℃保温60min;
⑤ 灭酶:加热至90℃保温10min;
⑥ 冷却后过滤水洗至中性;
⑦ 按固液比1:35加入水,在30~40MPa压力下进行均质;
⑧ 动态高压微射流100MPa处理一次;
⑨ 喷雾干燥:对膳食纤维进行喷雾干燥处理,控制进风温度在205~215℃,出风温度在90~95℃;
⑩ 超微化处理:用碾磨式超微粉碎,控制转速20r/s,粉碎时间4.8h,产品粒度80%小于5um。
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105011178A (zh) * | 2015-08-25 | 2015-11-04 | 河北香道食品有限公司 | 一种湿法超微粉碎制备膳食纤维浆液的方法 |
CN107280018A (zh) * | 2017-08-15 | 2017-10-24 | 江南大学 | 一种米糠不溶性膳食纤维的制备方法 |
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- 2013-09-12 CN CN201310413159.1A patent/CN103478736A/zh active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105011178A (zh) * | 2015-08-25 | 2015-11-04 | 河北香道食品有限公司 | 一种湿法超微粉碎制备膳食纤维浆液的方法 |
CN107280018A (zh) * | 2017-08-15 | 2017-10-24 | 江南大学 | 一种米糠不溶性膳食纤维的制备方法 |
CN107280018B (zh) * | 2017-08-15 | 2020-12-01 | 江南大学 | 一种米糠不溶性膳食纤维的制备方法 |
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