Package plays a critical role in shelf life of packed content, hygienic safety, storage, transport, and user convenience. Food package is known as a special food additive. It is the last procedure in food industry, and to some degree, it has become an indispensable part of food. From the perspective of food safety, inferior packaging material may directly lead to food safety problem.
CONVEN provides professional packaging safety solution for food companies from the perspective of food packaging.
Aroma loss mainly affects the eating quality of flavor food or aroma food. Aroma loss can be attributed to food itself and packaging material.
1. Food itself. For example, aroma of food comes from edible essence which is volatile and can be easily result in aroma loss. Besides, as some food contains high percent of water content, organic molecule and water are liable to be mixed which may block the diffusing of aroma.
2. Packaging quality problems that attribute to the aroma loss may include:
1) Poor barrier property. For example, if the aroma resistance of packaging material is low, food aroma may be lost gradually during long term storage.
2) Poor seal performance. For example, improper heat seal may lead to poor seal performance at the sealing area from where the aroma would diffuse.
3) Low physical and mechanical performance. For example, if packaging material is low in flexibility and puncture resistance to packed content, or low in flex resistance and compression resistance, there may be pinholes or crease appeared on package during storage or transport, even the package may break. If such problems are not discovered in time, food aroma may lose.
Specific to the possible reasons for aroma loss, food manufacturers shall properly control the food producing techniques, including type of essence selected and the adding method, control of water content control contained in food, drying method, etc. CONVEN provides a complete packaging safety solution. From the quality control of purchased packaging material, CONVEN helps to select suppliers and improve packing processing techniques, aiming to prevent the food aroma from losing due to packaging quality problems. The solution consists of:
1) Barrier property of food package. For example, by performing transmission rate test of particular organic gas, whether the aroma resistance of packaging material meets the requirement of packed food can be determined.
2) Seal performance. For example, by conducting seal and leak test, and burst pressure test, leaking problem as well as leaking position can be detected in time, if any, and the area of package with low mechanical strength can be positioned. Besides, heat seal strength test can determine whether heat seal strength meets requirements of packed food, and find out the position where the heat sealing is not proper.
3) Physical and mechanical performance. For example, tensile strength and elongation rate at break, puncture resistance, pendulum impact resistance, peel resistance, etc, test of which respectively or in combination can be used to evaluate whether the physical and mechanical performance of package such as flexibility, puncture resistance and flex resistance can meet the requirements of packing and transport.
Through the above mentioned performance tests, quality control of packaging material can be generally achieved, and thus food aroma loss due to inferior quality of packaging material can be avoided.
Consisting of high precision intelligent testing instruments developed by Labthink, CONVEN Information System, and complete solutions for testing, diagnosis, quality analysis and quality control, CONVEN is a consulting packaging test service system, and has profound social value in respect of cost saving of plastic flexible packages consuming companies, product quality improving, food and pharmaceuticals safety guaranteeing.
