CN112790313A - 一种紫玉淮山片的制备方法 - Google Patents
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Abstract
本发明公开一种紫玉淮山片的制备方法，选用无硫真空冷冻干燥，可以有效地提高紫玉淮山片的复水性能，减少营养的流失，而且干燥时间短，所得的紫玉淮山片颜色美观，品质高，具有增强免疫、促进肠胃、降血糖、降血脂、抗衰老、抗肿瘤、消炎、疏通血管以及预防心脏病等食用效果。
Description
技术领域
本发明属于紫玉淮山技术领域，特别是涉及一种紫玉淮山片的制备方法。
背景技术
紫玉淮山又称紫淮山，其肉为紫红色，口感好，营养丰富，是一种优选品种，相比传统的白淮山，紫玉淮山的多肽酶、微量元素、锌等营养物质更加丰富，此外，紫玉淮山的花青素含量是白淮山的60倍，对眼睛有保健作用；紫玉淮山的药理效果有：增强免疫、促进肠胃、降血糖、降血脂、抗衰老、抗肿瘤、消炎、疏通血管以及预防心脏病等，因此也具有更高的经济价值，但是紫玉淮山的生长周期长，出土后无论是冷藏，窖藏或者洞藏都不易于保存，为此急需产业化延续其食用价值。
发明内容
基于此，有必要针对上述问题，本发明提供一种紫玉淮山片的制备方法，其目的提供一种工艺步骤简单，通过环保真空冷冻技术，健康无硫，最大限度的保留了紫玉淮山的营养成分，解决了现有技术中，紫玉淮山干燥时间长、品质差出现裂纹且营养缺失、口感差等问题。
本发明提供一种紫玉淮山片的制备方法，包括如下步骤，
步骤1：选择新鲜、光滑无病斑的紫玉淮山作为原材料；
步骤2：先用干净的自来水将淮山表面的泥土杂物清洗干净，然后使用去皮机将淮山表皮、头尾切削掉，切成1～1.5cm厚的圆片，然后用蒸馏水对去皮后的紫玉淮山片进行清洗，最后用重量百分比为1～5％盐水再次清洗紫玉淮山片表面；
步骤3：将切好的紫玉淮山片迅速转移置90℃～95℃的热水中烫漂30～40min；
步骤4：用不锈钢筛网将紫玉淮山片捞出转移至护色液中，浸泡800～1000min；所述的护色液的配比为：葡萄糖氧化酶0.01％～0.08％w/v、抗坏血酸0.03％～0.12％w/v、氯化钙0.01％～0.05％w/v、柠檬酸0.01～0.03％w/v；步骤5：完成护色后，将紫玉淮山片铺在冷冻干燥专用托盘上，铺盘厚度控制在10-20cm，置于-30℃～-10℃条件下冷冻3-6h，得到冻结的紫玉淮山片；
步骤6：对紫玉淮山片进行冷冻干燥；所述冷冻干燥方法为：将紫玉淮山片放入冷冻干燥机中，当温度达到-42℃时，开启真空泵至绝对压强为110Pa，设置加热板最高温度为80℃，最低70℃。将淮山冷冻干燥至含水量≤4％即可；
步骤7：将干燥的紫玉淮山片抽真空袋装，将真空袋装之后的紫玉淮山片，采用紫外线照射的方法对包装后的紫玉淮山片进行灭菌处理，照射时间为3～5min。
优选的，所述原材料选用未半径不小于2㎝的紫玉淮山，长度不小于20厘米的紫玉淮山，并且为在8月-9月份收成的紫玉淮山。
优选的，所述包装材料采用无毒、无污、遮光、防潮的材料。
本发明具有如下有益效果：选用上述无硫真空冷冻干燥，可以有效地提高紫玉淮山片的复水性能，减少营养的流失，而且干燥时间短，所得的紫玉淮山片颜色美观，品质高，具有增强免疫、促进肠胃、降血糖、降血脂、抗衰老、抗肿瘤、消炎、疏通血管以及预防心脏病等食用效果。
具体实施方式
本发明提供一种紫玉淮山片的制备方法，包括如下步骤，
步骤1：选择新鲜、光滑无病斑的紫玉淮山作为原材料；
步骤2：先用干净的自来水将淮山表面的泥土杂物清洗干净，然后使用去皮机将淮山表皮、头尾切削掉，切成1～1.5cm厚的圆片，然后用蒸馏水对去皮后的紫玉淮山片进行清洗，最后用重量百分比为1～5％盐水再次清洗紫玉淮山片表面；
步骤3：将切好的紫玉淮山片迅速转移置90℃～95℃的热水中烫漂30～40min；
步骤4：用不锈钢筛网将紫玉淮山片捞出转移至护色液中，浸泡800～1000min；所述的护色液的配比为：葡萄糖氧化酶0.01％～0.08％w/v、抗坏血酸0.03％～0.12％w/v、氯化钙0.01％～0.05％w/v、柠檬酸0.01～0.03％w/v；步骤5：完成护色后，将紫玉淮山片铺在冷冻干燥专用托盘上，铺盘厚度控制在10-20cm，置于-30℃～-10℃条件下冷冻3-6h，得到冻结的紫玉淮山片；
步骤6：对紫玉淮山片进行冷冻干燥；所述冷冻干燥方法为：将紫玉淮山片放入冷冻干燥机中，当温度达到-42℃时，开启真空泵至绝对压强为110Pa，设置加热板最高温度为80℃，最低70℃。将淮山冷冻干燥至含水量≤4％即可；
步骤7：将干燥的紫玉淮山片抽真空袋装，将真空袋装之后的紫玉淮山片，采用紫外线照射的方法对包装后的紫玉淮山片进行灭菌处理，照射时间为3～5min。
进一步地，所述原材料选用未半径不小于2㎝的紫玉淮山，长度不小于20厘米的紫玉淮山，并且为在8月-9月份收成的紫玉淮山。
进一步地，所述包装材料采用无毒、无污、遮光、防潮的材料。
本发明具有如下有益效果：选用上述无硫真空冷冻干燥，可以有效地提高紫玉淮山片的复水性能，减少营养的流失，而且干燥时间短，所得的紫玉淮山片颜色美观，品质高，具有增强免疫、促进肠胃、降血糖、降血脂、抗衰老、抗肿瘤、消炎、疏通血管以及预防心脏病等食用效果。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。以上实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。
Claims (3)
1.一种紫玉淮山片的制备方法，其特征在于，包括如下步骤，
步骤1：选择新鲜、光滑无病斑的紫玉淮山作为原材料；
步骤2：先用干净的自来水将淮山表面的泥土杂物清洗干净，然后使用去皮机将淮山表皮、头尾切削掉，切成1～1.5cm厚的圆片，然后用蒸馏水对去皮后的紫玉淮山片进行清洗，最后用重量百分比为1～5％盐水再次清洗紫玉淮山片表面；
步骤3：将切好的紫玉淮山片迅速转移置90℃～95℃的热水中烫漂30～40min；
步骤4：用不锈钢筛网将紫玉淮山片捞出转移至护色液中，浸泡800～1000min；所述的护色液的配比为：葡萄糖氧化酶0.01％～0.08％w/v、抗坏血酸0.03％～0.12％w/v、氯化钙0.01％～0.05％w/v、柠檬酸0.01～0.03％w/v；
步骤5：完成护色后，将紫玉淮山片铺在冷冻干燥专用托盘上，铺盘厚度控制在10-20cm，置于-30℃～-10℃条件下冷冻3-6h，得到冻结的紫玉淮山片；
步骤6：对紫玉淮山片进行冷冻干燥；所述冷冻干燥方法为：将紫玉淮山片放入冷冻干燥机中，当温度达到-42℃时，开启真空泵至绝对压强为110Pa，设置加热板最高温度为80℃，最低70℃。将淮山冷冻干燥至含水量≤4％即可；
步骤7：将干燥的紫玉淮山片抽真空袋装，将真空袋装之后的紫玉淮山片，采用紫外线照射的方法对包装后的紫玉淮山片进行灭菌处理，照射时间为3～5min。
2.根据权利要求1所述的紫玉淮山片的制备方法，其特征在于，所述原材料选用未半径不小于2㎝的紫玉淮山，长度不小于20厘米的紫玉淮山，并且为在8月-9月份收成的紫玉淮山。
3.根据权利要求1所述的紫玉淮山片的制备方法，其特征在于，所述包装材料采用无毒、无污、遮光、防潮的材料。
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117016747A (zh) * | 2023-05-31 | 2023-11-10 | 华南理工大学 | 一种高花青素紫淮山片及其制备方法 |
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