CN116138448A - 即食冻干制玉竹片的制备方法 - Google Patents
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Abstract
本发明公开了一种即食冻干制玉竹片的制备方法,将鲜玉竹原料挑选清洗后切片;对玉竹片进行熏蒸;对熏蒸后的玉竹片进行速冻后再进行真空冷冻干燥后制成半成品玉竹片待用;将黄精、百合、山药、芦笋、枸杞挑选清洗后通过粉碎得到混合粉;三十倍常温水浸泡混合粉形成混合溶液后进行浸泡酶解;酶解后通过超声波提纯;步骤七:过滤后进行UHT灭菌处理;通过反渗透膜进行浓缩后得到混合提取液;称量赤藓糖醇和半成品玉竹陆续放入混合提取液浸泡;将浸泡后的玉竹片进行蒸汽熏蒸后首先进行速冻、然后再进行冷冻干燥后制成成品冻干制玉竹。本方案制成的冻干制玉竹,既有极佳的口感风味,同时具有一定的滋阴润肺,养颜安神的功效。
Description
技术领域
本发明涉及玉竹片的制备方法领域,特别涉及一种即食冻干制玉竹片的制备方法。
背景技术
玉竹,别名玉参、鲜草根,百合科多年生草本植物,其幼苗和根状茎均可食用。玉竹含玉竹粘多糖,由D-果糖,D-甘露糖,D-葡萄糖及半乳糖醛酸组成;玉竹果聚糖A、B、C、D,由果糖、葡萄糖组成。《本草纲目》记载:玉竹黄白色根茎味甘,性平,无毒。补中益气,除烦闷,止消渴,润心肺,补五劳七伤虚损,久服可消除黄褐斑,容光焕发,面色润泽,使身体年轻不易衷老,服食不用忌讳。现代医学证实,玉竹含生物碱,强心甙、粘液质以及菠酸,维生素A类物质,具有补益五脏、滋养气血、平补而润、益气生津、降血糖、润泽皮肤作用。《本草正义》说:“治肺胃燥热,津液枯涸,口渴嗌干等症,而胃火炽盛,燥渴消谷,多食易饥者,尤有捷效”。
现有的玉竹加工技术多为切丁后直接烘干,做法过于粗糙,使得在加工过程中有益成分产生较大的损失,并且成品口感极差,难以直接食用。
发明内容
为了解决现有技术存在的缺陷,本发明提供一种即食冻干制玉竹片的制备方法。
为实现上述目的,本发明采用的技术方案为:一种即食冻干制玉竹片的制备方法,
步骤一:鲜玉竹原料进行挑选清洗后切成玉竹片;
步骤二:对玉竹片进行熏蒸;
步骤三:对熏蒸后的玉竹片进行速冻后再进行真空冷冻干燥后制成半成品玉竹片待用;
步骤四:根据玉竹70至80%、黄精0至10%、百合0至5%、山药0至5%、芦笋0至5%、枸杞0至5%和赤藓糖醇0至5%的配比标准将黄精、百合、山药、芦笋、枸杞挑选清洗后通过中草药粉碎机粉碎得到混合粉;
步骤五:三十倍常温水浸泡混合粉形成混合溶液;然后加入复合酶进行浸泡酶解;
步骤六:将酶解后的混合溶液通过超声波进行提取;
步骤七:采用真空抽滤去渣进行过滤后进行UHT灭菌处理;
步骤八:通过反渗透膜进行浓缩后得到混合提取液;
步骤九:根据步骤四的配比标准将称量后的赤藓糖醇和待用的半成品玉竹陆续放入混合提取液浸泡;
步骤十:将浸泡后的玉竹片进行蒸汽熏蒸后首先进行速冻、然后再进行冷冻干燥后制成成品冻干制玉竹。
步骤二和步骤十的熏蒸条件均为:120摄氏度蒸汽熏蒸1小时。
步骤三和步骤十的真空冷冻干燥的条件均为:-25摄氏度,70Pa以下,冻干16小时。
步骤四处中草药粉碎机粉碎到20目得到混合粉。
步骤五处复合酶由纤维素酶、果胶酶、蛋白酶复合而成,浸泡酶解的条件为:将温度升高到50度并保持120分钟。
步骤六处超声波提取时间为30分钟。
步骤八处通过反渗透膜进行浓缩至固形物含量25%的浓缩液。
用本方法制成的冻干制玉竹具有口感良好、安全卫生、保留营养成分的优点,且可以大规模生产加工。1.通过科学配伍黄精、百合等,形成即食冻干制玉竹良好的口感;2.通过熏蒸完成产品的熟化与灭菌,使得冻干制玉竹安全卫生;3.通过真空冷冻干燥的加工方式,使得冻干制玉竹最大程度的保留营养成分。
附图说明
图1是即食冻干制玉竹片的制备方法的流程图。
具体实施方式
以下结合附图对本发明优选的方案作进一步详细说明。
实施方式一
如图1所示,一种即食冻干制玉竹片的制备方法,
步骤一:人工挑选去除腐烂、变质的部分,去除灰尘、泥土等杂质,去切成2至4mm厚度的片。
步骤二:将鲜玉竹片在120摄氏度的蒸汽中熏蒸1小时。
步骤三:对熏蒸后的玉竹片进行速冻后再进行真空冷冻干燥后制成半成品玉竹片待用;真空冷冻干燥的条件均为:-25摄氏度,70Pa以下,冻干16小时。
步骤四:根据玉竹70%,黄精10%,赤藓糖醇5%,百合5%、山药5%、枸杞5%、芦笋0%的配比标准将黄精、百合、山药、芦笋、枸杞挑选清洗后通过中草药粉碎机粉碎到20目得到混合粉。
步骤五:三十倍常温水浸泡混合粉形成混合溶液;然后加入复合酶进行浸泡酶解;复合酶由纤维素酶、果胶酶、蛋白酶复合而成,复合酶可以由市场上直接购得,浸泡酶解的条件为:将温度升高到50度并保持120分钟。
步骤六:将酶解后的混合溶液通过超声波进行提取;超声波提取时间为30分钟。
步骤七:采用真空抽滤去渣进行过滤后进行UHT灭菌处理;
步骤八:通过反渗透膜进行浓缩至固形物含量25%的浓缩液,得到混合提取液;
步骤九:根据步骤四的配比标准将称量后的赤藓糖醇和待用的半成品玉竹陆续放入混合提取液浸泡120分钟;
步骤十:将浸泡后的玉竹片在120摄氏度的蒸汽中熏蒸1小时后首先进行速冻、然后再进行冷冻干燥后制成成品冻干制玉竹。真空冷冻干燥的条件为:-25摄氏度,70Pa以下,冻干16小时。
为了解决保留玉竹有益成分且改善口感,本发明创造性地改进了玉竹的加工工艺,通过切片、蒸煮、真空冷冻干燥,以进行大规模、标准化的加工。获得有益成分损失极小的冻干玉竹;同时配伍黄精、百合、山药、芦笋、枸杞、赤藓糖醇等,制出即食的冻干制玉竹,既有极佳的口感风味,同时具有一定的滋阴润肺,养颜安神的功效。实验结果保留玉竹特有的口感,增加了少许黄精特有口感与糖醇的冰甜口感。
通过真空冷冻干燥技术使得玉竹的有效成分尽可能保留;酶解技术的使用,可以使得辅料得率提高,口感风味佳;蒸汽熏蒸确保产品微生物可控,具有直接入口的安全度。本申请的一种即食冻干制玉竹片的制备方法,工艺简单快捷,也可以使得成品产量非常可观,小型冷冻工厂一个月可以加工出10吨以上的冻干制玉竹。
冻干制玉竹的食用方式:可以直接食用,也可以取本发明的冻干制玉竹10至15克加入200ML的90摄氏度热水中冲泡5-10分钟后饮用。
实施方式二
方案基本于实施方式一相同,区别点在于:步骤四的配比标准不同。实施方式的配比标准为:玉竹74%,黄精10%,百合4%、山药4%、枸杞4%、芦笋4%、赤藓糖醇0%。
采用该配比标准制成的即食冻干制玉竹片在保留玉竹特有的口感同时,增加了少许黄精特有口感且不相冲突,产品粉末较少外观佳。
实施方式三
方案基本于实施方式一相同,区别点在于:步骤四的配比标准不同。实施方式的配比标准为:根据玉竹80%、赤藓糖醇5%、黄精3%、百合3%、山药3%、枸杞3%、芦笋3%。
采用该配比标准制成的即食冻干制玉竹片在保留玉竹特有的口感同时,增加了少许黄精和赤藓糖醇口感较好,且甜度适中,适合不喜欢高甜的客户食用。
上述实施方式仅是本发明优选的方式,但本实施方式不受上述实施方式的限制,其它的任何未背离本发明的精神实质和原理下所作出的改变、修饰、替换、组合、简化,应为等效的置换方式,均落入到本发明的保护范围之内。
Claims (10)
1.一种即食冻干制玉竹片的制备方法,其特征在于,
步骤一:鲜玉竹原料进行挑选清洗后切成玉竹片;
步骤二:对玉竹片进行熏蒸;
步骤三:对熏蒸后的玉竹片进行速冻后再进行真空冷冻干燥后制成半成品玉竹片待用;
步骤四:根据玉竹70至80%、黄精0至10%、百合0至5%、山药0至5%、芦笋0至5%、枸杞0至5%和赤藓糖醇0至5%的配比标准将黄精、百合、山药、芦笋、枸杞挑选清洗后通过中草药粉碎机粉碎得到混合粉;
步骤五:三十倍常温水浸泡混合粉形成混合溶液;然后加入复合酶进行浸泡酶解;
步骤六:将酶解后的混合溶液通过超声波进行提取;
步骤七:采用真空抽滤去渣进行过滤后进行UHT灭菌处理;
步骤八:通过反渗透膜进行浓缩后得到混合提取液;
步骤九:根据步骤四的配比标准将称量后的赤藓糖醇和待用的半成品玉竹陆续放入混合提取液浸泡;
步骤十:将浸泡后的玉竹片进行蒸汽熏蒸后首先进行速冻、然后再进行冷冻干燥后制成成品冻干制玉竹。
2.根据权利要求1所述的即食冻干制玉竹片的制备方法,其特征在于,步骤二和步骤十的熏蒸条件均为:120摄氏度蒸汽熏蒸1小时。
3.根据权利要求2所述的即食冻干制玉竹片的制备方法,其特征在于,步骤三和步骤十的真空冷冻干燥的条件均为:-25摄氏度,70Pa以下,冻干16小时。
4.根据权利要求3所述的即食冻干制玉竹片的制备方法,其特征在于,中草药粉碎机粉碎到20目得到混合粉。
5.根据权利要求4所述的即食冻干制玉竹片的制备方法,其特征在于,复合酶由纤维素酶、果胶酶、蛋白酶复合而成,浸泡酶解的条件为:将温度升高到50度并保持120分钟。
6.根据权利要求5所述的即食冻干制玉竹片的制备方法,其特征在于,超声波提取时间为30分钟。
7.根据权利要求6所述的即食冻干制玉竹片的制备方法,其特征在于,通过反渗透膜进行浓缩至固形物含量25%的浓缩液。
8.根据权利要求1至7任一项所述的即食冻干制玉竹片的制备方法,其特征在于:玉竹70%,黄精10%,赤藓糖醇5%,百合5%、山药5%、枸杞5%、芦笋0%。
9.根据权利要求1至7任一项所述的即食冻干制玉竹片的制备方法,其特征在于,玉竹74%,黄精10%,百合4%、山药4%、枸杞4%、芦笋4%、赤藓糖醇0%。
10.根据权利要求1至7任一项所述的即食冻干制玉竹片的制备方法,其特征在于,根据玉竹80%、赤藓糖醇5%、黄精3%、百合3%、山药3%、枸杞3%、芦笋3%。
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