食品保鲜袋存在的意义有哪些？

来源：http://www.scuhtg.com/ 日期：2024-01-16

食品在常温下容易变质，不能长时间保存，所以人们不断开发和研究食品保鲜袋技术，可见，食品保鲜袋技术对于我们的日常生活是必不可少的。保鲜二字，指的是食品在贮藏过程中保持新鲜的一切技术或工艺，而鲜果则代表了新鲜状态的具体内容，即外在的形态、颜色、香味等，水果和蔬菜。

Food is prone to spoilage at room temperature and cannot be stored for a long time, so people are constantly developing and researching food preservation bag technology. It can be seen that food preservation bag technology is essential for our daily life. The word "freshness preservation" refers to all the techniques or techniques used to keep food fresh during storage, while fresh fruits represent the specific content of their freshness, such as external form, color, aroma, etc., fruits and vegetables.

食品保鲜袋技术可分为两种：物理方法和化学方法，物理方法是通过低温制冷、加热、辐射，化学方法是防腐，食物腐败是由有害微生物的破坏引起的，只要杀死了有害微生物，食物的保存时间自然会延长，物理方法和化学方法的结果是一样的，就是把有害微生物衍生出来了，把已经产生的有害微生物杀死了。

Food preservation bag technology can be divided into two types: physical methods and chemical methods. Physical methods involve low-temperature refrigeration, heating, and radiation, chemical methods involve preservation, and food spoilage is caused by the destruction of harmful microorganisms. As long as harmful microorganisms are killed, the storage time of food will naturally be extended. The results of physical and chemical methods are the same, which means that harmful microorganisms are derived, Kill the harmful microorganisms that have already been produced.

食品保鲜袋技术的意义在于将保鲜技术及其研究原理运用到我们的生活中，给我们的生活带来便利，其实在今天的日常生活中，有冰箱、保鲜袋、保鲜膜、保鲜盒等食品保鲜，我们就方便多了。它们的出现给我们的生活带来了很多便利，同时也避免了很多东西被浪费的现象。随着现代科学技术的不断发展，当今的食品保鲜袋技术也在不断提高。

The significance of food preservation bag technology lies in applying preservation technology and its research principles to our daily lives, bringing convenience to our lives. In fact, in today's daily life, with refrigerators, preservation bags, preservation films, preservation boxes and other food preservation methods, we are much more convenient. Their emergence has brought us a lot of convenience in our lives, while also avoiding the phenomenon of many things being wasted. With the continuous development of modern science and technology, the technology of food preservation bags is also constantly improving today.

果蔬在收获后如果不保鲜，由于生理老化、病菌伤害、机械损伤等原因，很容易腐烂变质，据统计，世界上果蔬的损失有20% ~ 40%是由于保鲜不足或保鲜技术差造成的，众所周知，果蔬在贮运过程中不断进行着关重要的活动，主要表现形式就是呼吸作用，保鲜的基本原理是创造适宜的贮藏条件，将果蔬的生命活动控制在极低限度，从而延长果蔬的存活时间，在果蔬保鲜过程中，温度控制是很常用的方法，即降低果蔬的贮藏温度，在不破坏果蔬缓慢而正常的代谢功能的前提下，温度越低，越能延缓衰老进程，但温度不能太低，否则会造成冻害，在果蔬保鲜的发展过程中，人们还采用了气调、涂蜡和塑封技术、、防腐保鲜、脱氧保鲜、植物生长调节、防腐剂的使用等。

If fruits and vegetables are not kept fresh after harvest, they are prone to decay and deterioration due to physiological aging, bacterial damage, mechanical damage, and other reasons. According to statistics, 20% to 40% of the loss of fruits and vegetables in the world is caused by insufficient preservation or poor preservation technology. As is well known, fruits and vegetables constantly engage in crucial activities during storage and transportation, mainly manifested in respiration. The basic principle of preservation is to create suitable storage conditions, Controlling the life activities of fruits and vegetables to a very low limit can prolong their survival time. In the process of fruit and vegetable preservation, temperature control is a commonly used method, which is to lower the storage temperature of fruits and vegetables. On the premise of not damaging the slow and normal metabolic function of fruits and vegetables, the lower the temperature, the more it can delay the aging process. However, the temperature should not be too low, otherwise it will cause freezing damage. In the development process of fruit and vegetable preservation, people also use controlled atmosphere Wax coating and plastic sealing technology, sterilization, anti-corrosion preservation, deoxygenation preservation, plant growth regulation, use of preservatives, etc.

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