Freshness preservation agent prepared from alga extraction solution and applied to melons and fruits

Abstract

The invention discloses a freshness preservation agent prepared from an alga extraction solution and applied to melons and fruits. The freshness preservation agent is prepared from the following materials in parts by weight: 15-20 parts of the alga extraction solution, 5-10 parts of a herba cirsii segesti extraction solution, 3-8 parts of starch, 1-3 parts of table salt, 0.5-1 part of vitamin C, 3-5 parts of ethyl alcohol, 2-4 parts of sodium bicarbonate, 0.5-1 part of allicin, 1-3 parts of pectin, 1-3 parts of propolis and 0.1-0.15ppm of ozone. The materials added into the freshness preservation agent are edible; the alga extraction solution is an extraction solution prepared by carrying out ultrasonic extraction with assistance of acetic acid of alga and adjusting the solution to be neutral by using sodium bicarbonate; the alga extraction solution contains rich algal polysaccharides and proteoglycan proteins and can be combined with the herba cirsii segesti extraction solution, starch, pectin and propolis to form a relatively dense protection film on the surfaces of the melons and the fruits; most of the air can be isolated; the free contact between the melons and the fruits and oxygen in the air can be avoided; the metabolism can be reduced; the freshness preservation time of the melons and the fruits can be prolonged.

Description

technical field [0001] The invention relates to the technical field of antistaling agents, in particular to a melon and fruit antistaling agent prepared from seaweed extract. Background technique [0002] With the development of science and technology and the improvement of people's living standards, people's demand for melons and fruits produced in different seasons in different regions is gradually increasing. Melons and fruits in greenhouses are far from meeting the existing needs. They are transported in other places or stored for a long time to meet people's needs. However, melons and fruits often contain more water. Long storage time will make the melons and fruits dehydrated and change their taste. , it will also cause the melons and fruits to rot due to moisture, or the temperature change during transportation will cause the dehydration or rot of the melons and fruits, which will not only pollute the environment, but also bring economic losses; the current preservati...

AI Technical Summary

Problems solved by technology

Melons and fruits in greenhouses are far from meeting the existing needs. They are transported in other places or stored for a long time to meet people's needs. However, melons and fruits often contain more water. Long storage time will make the melons and fruits dehydrated and change their taste. , it will also cause the melons and fruits to rot due to moisture, or the temperature change during transportation will cause the dehydration or rot of the melons and fruits, which will not only pollute the environment, but also bring economic losses; the current preservation technology is generally low temperature preservation, drying Preservation, or preservation by preservatives, and most of the existing preservatives are chemical agents, which will remain in the human body after long-term use and cause harm to the human body. For the sake of environmental protection and human health, the development and application of efficient and safe food preservatives has become a global trend. Important Research Areas of Food Preservatives