CN107279260A - 一种魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂的制备方法 - Google Patents
一种魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂的制备方法 Download PDFInfo
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B5/00—Preservation of eggs or egg products
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- A23B5/14—Organic compounds; Microorganisms; Enzymes
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- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B5/00—Preservation of eggs or egg products
- A23B5/08—Preserving with chemicals
- A23B5/12—Preserving with chemicals in the form of liquids or solids
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
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Abstract
本发明公开了一种魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂的制备方法，通过将0.3‑0.5份魔芋葡苷聚糖、1.5‑2.5份聚乙烯醇、2‑4份硝酸钙溶液、0.1‑0.15份单甘酯、0.3‑0.5份硬脂酸、10‑15份乙醇、适量磷酸氢二铵溶液、0.3‑0.5份柠檬酸钠、0.2‑0.4份抗坏血酸、80‑100份水作为原料加工而成。本发明的涂膜保鲜剂能在禽蛋表面形成强度高、结合牢固、均匀、稳定的薄膜，其致密性高、防氧气、防水效果好，还有优良的抗菌效果，能使禽蛋长期保持较好的贮藏品质。
Description
技术领域
本发明涉及农产品保鲜技术领域，尤其涉及一种魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂的制备方法。
背景技术
中国的禽蛋资源丰富，历史悠久，禽蛋的营养价值高、食用方便，一直深受广大消费者的青睐。但是，禽蛋极易腐败变质，未经保鲜处理的鲜蛋货架期较短，制约了禽蛋产业以及相关产业的发展。因此，发展蛋品的保鲜技术具有重要意义。目前禽蛋的贮藏方法有冷藏法、浸泡法、气调法和涂膜法等。其中涂膜保鲜法具有操作简便、成本低，在室温下能延长禽蛋保存期等特点，适合我国蛋业生产现状，应用推广前景十分广阔。
魔芋葡甘聚糖具有粘度高、稳定性好、抗菌性强、成膜性好的特点，其水溶液能形成无色透明的薄膜，能阻止氧气进入，减缓营养物质的损耗，并能有效地减少外源微生物的侵染，常用于果蔬保鲜。但是，单一魔芋葡苷聚糖涂膜的致密性不好，阻隔氧气和水分的效果不够，而且强度差，容易遭到破坏，因此为良好地应用于禽蛋保鲜，需要对其性能进行改善。
发明内容
本发明目的就是为了弥补已有技术的缺陷，提供一种强度高、结合牢固、均匀、稳定、致密性好的魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂的制备方法。
本发明是通过以下技术方案实现的：
一种魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂的制备方法，其特征在于，包括下述步骤：
按重量称取原料，先将0.1-0.15份单甘酯、0.3-0.5份硬脂酸加入10-15份乙醇中60-70℃搅拌均匀，将得到的混合液保温待用；将0.3-0.5份魔芋葡苷聚糖和1.5-2.5份聚乙烯醇加入80-100份水中85-95℃搅拌直至完全溶解，然后将温度调至50-60℃并加入3-5份硝酸钙溶液搅拌均匀，再缓慢加入磷酸氢二铵溶液使钙磷比为1.63-1.67，将pH调至10-11后搅拌4-6h，然后将温度调至60-70℃，缓慢加入所述混合液并继续搅拌2-4h，冷却后将pH调至6-7，再加入0.3-0.5份柠檬酸钠和0.2-0.4份抗坏血酸混合均匀，得到魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂。
优选的，所述硝酸钙溶液的浓度为0.1-0.15mol/L。
优选的，所述磷酸氢二铵溶液的浓度为0.1-0.15mol/L。
所述魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂中还可以加入0.3-0.5重量份的甘油，起到增塑剂的作用。
一种禽蛋涂膜保鲜方法，将上述制备方法制得的魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂加热至60-80℃后均匀喷涂于禽蛋表面，于30-40℃晾干后保存。
本发明的优点是：
本发明通过将硝酸钙溶液与磷酸氢二铵溶液混合在魔芋葡苷聚糖和聚乙烯醇的混合溶液中原位生成纳米羟基磷灰石，从而得到均匀、稳定的纳米羟基磷灰石/魔芋葡苷聚糖/聚乙烯醇原位掺杂体系，具有良好的力学强度和抗菌性；再通过向体系中加入单甘酯、硬脂酸的乙醇溶液，使硬脂酸与羟基磷灰石表面的钙离子结合而接枝在羟基磷灰石表面，实现对纳米羟基磷灰石/魔芋葡苷聚糖/聚乙烯醇体系的疏水改性，赋予该体系良好的疏水性。将该体系与柠檬酸钠等成分混合后制备涂膜保鲜剂，得到的产品能在禽蛋表面形成强度高、结合牢固、均匀、稳定的薄膜，其致密性高、防氧气、防水效果好，还有优良的抗菌效果，能使禽蛋长期保持较好的贮藏品质。
具体实施方式
一种魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂的制备方法，其特征在于，包括下述步骤：
按重量称取原料，先将0.1份单甘酯、0.3份硬脂酸加入10份乙醇中60℃搅拌均匀，将得到的混合液保温待用；将0.3份魔芋葡苷聚糖和1.5份聚乙烯醇加入80份水中85℃搅拌直至完全溶解，然后将温度调至50℃并加入3份硝酸钙溶液搅拌均匀，再缓慢加入磷酸氢二铵溶液使钙磷比为1.67，将pH调至10后搅拌4h，然后将温度调至60℃，缓慢加入所述混合液并继续搅拌2h，冷却后将pH调至6，再加入0.3份柠檬酸钠和0.2份抗坏血酸混合均匀，得到魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂。
所述硝酸钙溶液的浓度为0.1mol/L。
所述磷酸氢二铵溶液的浓度为0.1mol/L。
一种禽蛋涂膜保鲜方法，将上述制备方法制得的魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂加热至60℃后均匀喷涂于禽蛋表面，于30℃晾干后保存。
Claims (5)
1.一种魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂的制备方法，其特征在于，包括下述步骤：
按重量称取原料，先将0.1-0.15份单甘酯、0.3-0.5份硬脂酸加入10-15份乙醇中60-70℃搅拌均匀，将得到的混合液保温待用；将0.3-0.5份魔芋葡苷聚糖和1.5-2.5份聚乙烯醇加入80-100份水中85-95℃搅拌直至完全溶解，然后将温度调至50-60℃并加入3-5份硝酸钙溶液搅拌均匀，再缓慢加入磷酸氢二铵溶液使钙磷比为1.63-1.67，将pH调至10-11后搅拌4-6h，然后将温度调至60-70℃，缓慢加入所述混合液并继续搅拌2-4h，冷却后将pH调至6-7，再加入0.3-0.5份柠檬酸钠和0.2-0.4份抗坏血酸混合均匀，得到魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂。
2.根据权利要求1所述的一种魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂的制备方法，其特征在于，所述硝酸钙溶液的浓度为0.1-0.15mol/L。
3.根据权利要求1所述的一种魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂的制备方法，其特征在于，所述磷酸氢二铵溶液的浓度为0.1-0.15mol/L。
4.根据权利要求1所述的一种魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂的制备方法，其特征在于，所述魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂中还添加0.3-0.5重量份的增塑剂，所述增塑剂为甘油。
5.一种禽蛋涂膜保鲜方法，其特征在于，将权利要求1-4所述的制备方法制得的魔芋葡苷聚糖纳米复合禽蛋涂膜保鲜剂加热至60-80℃后均匀喷涂于禽蛋表面，于30-40℃晾干后保存。
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109717350A (zh) * | 2019-03-04 | 2019-05-07 | 嘉兴市真真老老食品有限公司 | 粽子保鲜工艺 |
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