阅读说明：本技术 一种速冻黄花菜生产工艺 (Production process of quick-frozen daylily ) 是由 李天义 于 2020-05-11 设计创作，主要内容包括：本发明创造涉及一种速冻黄花菜生产工艺,所述生产工艺包括原料验收、去花梗、清洗、沥水、烫漂、冷却、沥水、速冻、包装、冷藏,所述原料验收为去花梗选用花蕾饱满,长度适宜,颜色黄绿,花苞上纵沟明显,大小均匀的幼嫩黄花菜进行加工,剔除花苞开放,黄化,衰老及病虫危害的花苞,并轻轻摘去其木质化花梗,所述清洗、沥水为入清水池轻轻漂洗,沥水后备烫漂,所述烫漂为将清洗沥水后的黄花菜迅速置于水温为95～100°的螺旋式烫漂锅中进行烫漂,烫漂既能破坏黄花菜中过氧化酶的活性并杀死微生物,同时壳排除空气,保存维生素,使黄花菜更加翠绿；本发明具有保留营养价值、操作方便和不变色的优点。(The invention relates to a production process of quick-frozen daylily, which comprises the steps of raw material acceptance inspection, flower stalk removal, cleaning, draining, blanching, cooling, draining, quick freezing, packaging and refrigeration, wherein the raw material acceptance inspection is that flower buds are selected for the flower stalk removal, are full, have proper lengths and are yellowish green, the buds are provided with obvious longitudinal ditches and are uniform in size, the buds which are opened, yellowed, aged and damaged by diseases and pests are removed, lignified flower stalks are slightly picked off, the cleaning and draining are slightly rinsed in a clean water tank, the draining is reserved for blanching, the blanching is that the daylily after being cleaned and drained is quickly placed in a spiral blanching pot with the water temperature of 95-100 degrees for blanching, the blanching can destroy the activity of peroxidase in the daylily and kill microorganisms, and meanwhile, the shells are exhausted air, vitamins are preserved, so that the daylily is more emerald green; the invention has the advantages of retained nutritive value, convenient operation and no discoloration.)

1. A production process of quick-frozen daylily is characterized by comprising the following steps: the production process comprises the steps of checking and accepting raw materials, removing flower stalks, cleaning, draining, blanching, cooling, draining, quick-freezing, packaging and refrigerating.

2. The production process of quick-frozen daylily according to claim 1, characterized by comprising the following steps of: the raw material acceptance inspection is that young and tender yellow cauliflowers with full buds, proper length, yellow-green color, obvious longitudinal ditches on the buds and uniform size are selected for removing the flower buds, which are opened, yellowed, aged and damaged by diseases and pests, are removed, and lignified flower stalks are gently picked off.

3. The production process of quick-frozen daylily according to claim 1, characterized by comprising the following steps of: the cleaning and draining are performed by slightly rinsing in a clean water pool and then scalding after draining.

4. The production process of quick-frozen daylily according to claim 1, characterized by comprising the following steps of: the method is characterized in that the daylily after being cleaned and drained is quickly placed in a spiral blanching pot with the water temperature of 95-100 degrees for blanching, the blanching can destroy the activity of peroxidase in the daylily and kill microorganisms, meanwhile, the shell exhausts air, vitamins are stored, the daylily is more emerald green, and the blanching time is 1 min.

5. The production process of quick-frozen daylily according to claim 1, characterized by comprising the following steps of: and the cooling and draining are carried out in time after blanching, the water is sprayed by 10-degree tap water, then the water enters a 0-5-degree cooling water pool to be cooled until the temperature of the product is lower than 10 degrees, and then the water is drained for quick freezing.

6. The production process of quick-frozen daylily according to claim 1, characterized by comprising the following steps of: the quick freezing is carried out by adopting a single quick freezer, the cold air temperature is-35 to-40 degrees, the air flow rate of frozen products is 1.5 to 5m/s, and the central temperature of the daylily buds reaches-18 degrees after 5 min.

Technical Field

The invention belongs to the technical field of day lily, and particularly relates to a production process of quick-frozen day lily.

Background

The daylily has the effects of stopping bleeding, diminishing inflammation, promoting urination, reducing swelling, clearing heat, calming the nerves, relieving pain and the like, can be used for assisting in treating various diseases, can also remove sediments in arteries, has a special curative effect on symptoms such as cerebral artery obstruction and the like, is known as brain-strengthening daylily, and has the advantages that as the harvesting period of the daylily is positive in spring and summer high-temperature seasons, flower buds are vigorous in respiration and metabolism, the phenomena of yellowing, flowering, aging and the like can occur in 10 hours after harvesting under the normal temperature condition, and the nutritional value is greatly reduced. The existing day lily refrigeration and preservation method can be only stored for about 20 days, although the quality guarantee period of the day lily can be greatly prolonged by the traditional air quick-freezing technology, the juice loss and browning phenomena after thawing are serious, and the requirements of domestic and foreign markets on fresh day lily can not be met; although the problem of perennial supply of the day lily is solved, the original color, flavor and nutrient components of the day lily cannot be maintained, the further development of the day lily industry is hindered, and a quick-frozen day lily production process which maintains the nutrient value, is convenient to operate and does not change color is needed to be developed; therefore, the development of a quick-frozen daylily production process which retains the nutritive value, is convenient to operate and does not discolor is of great significance.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a production process of quick-frozen daylily, which retains the nutritive value, is convenient to operate and does not discolor.

The purpose of the invention is realized as follows: a production process of quick-frozen daylily comprises the steps of raw material acceptance inspection, flower stalk removal, cleaning, draining, blanching, cooling, draining, quick freezing, packaging and refrigeration.

The raw material acceptance inspection is that young and tender yellow cauliflowers with full buds, proper length, yellow-green color, obvious longitudinal ditches on the buds and uniform size are selected for removing the flower buds, which are opened, yellowed, aged and damaged by diseases and pests, are removed, and lignified flower stalks are gently picked off.

The cleaning and draining are performed by slightly rinsing in a clean water pool and then scalding after draining.

The method is characterized in that the daylily after being cleaned and drained is quickly placed in a spiral blanching pot with the water temperature of 95-100 degrees for blanching, the blanching can destroy the activity of peroxidase in the daylily and kill microorganisms, meanwhile, the shell exhausts air, vitamins are stored, the daylily is more emerald green, and the blanching time is 1 min.

And the cooling and draining are carried out in time after blanching, the water is sprayed by 10-degree tap water, then the water enters a 0-5-degree cooling water pool to be cooled until the temperature of the product is lower than 10 degrees, and then the water is drained for quick freezing.

The quick freezing is carried out by adopting a single quick freezer, the cold air temperature is-35 to-40 degrees, the air flow rate of frozen products is 1.5 to 5m/s, and the central temperature of the daylily buds reaches-18 degrees after 5 min.

The invention has the beneficial effects that: the invention has the advantages of original nutritive value, no loss of nutrition and long preservation time.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein are for the purpose of describing particular embodiments only and are not intended to be limiting of the invention, and terms such as "and/or" as used herein include any and all combinations of one or more of the associated listed items; in addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.