What is Mold (or mould)?
An effective way to prevent the growth of mould requires different control points within the supply chain i.e. starts with raw materials, production, packaging, storage and shipping of finished products.
Moldy appearance found in exporting goods is actually caused by two major factors, the presence of fungi and moisture. In other words, if we can limit the density of fungi and control the humidity level in different control points, we can inhibit mold growing on the commodities and goods.
Treatment for commodities sterilization against mold (mould)
Sterilization (Fumigation) Service
Ethylene Oxide (ETO) Sterilization
Ethylene Oxide as a sterilizer – ETO plays a critical role in antimicrobial sterilization to protect public health. ETO uses include sterilizing certain heat-sensitive and irradiation-sensitive materials, as well as some instruments and devices on-site in hospitals.
Ethylene Oxide is a gas fumigation – diffusion process. It started off as an insecticide in the 1920’s and became widely used as a fumigant for agricultural produce. Because of the chemical’s very low boiling point (10.4° C), it becomes highly active at room temperature. It vaporizes and permeates rapidly through packaging substances like plastic, rubber etc..
Ethylene oxide gas kills bacteria (and their endospores), mold, and fungi, and can therefore be used to sterilize substances that would be damaged by sterilizing techniques such as pasteurization that rely on heat. Additionally, ethylene oxide is widely used to sterilize medical supplies such as bandages, sutures, and surgical implements.
Under normal atmospheric conditions ETO is deadly to all types of micro-organisms. Fumigation time varies from 24-72 hours depends on types of commodities, moisture level, concentration etc. Degas (Air wash) is required to eliminate any gas residue (0 ppm) according to the requirement of ISO10993-7.
ETO as a sterilizer to prevent the growth of moldy appearance
Ethylene Oxide is well placed to deal with a wide range of products. For example, plastics which may not physically cope with other types of processing are well suited to Ethylene Oxide. Being an extremely small gas, ETO will penetrate most forms of packaging. Powders, timber and other solids are easily treatable as the gas will flow around irregular surfaces.
Will ETO treatments damage my products?
How do I determine the appropriate dosage of ETO?
Will ETO residues trapped in the products?
When released to soil, most will evaporate to air and some may be broken down by bacteria or by reacting with water in the soil. Ethylene oxide does not persist long in the environment and is not expected to build up in the food chain.
ETO treatment can achieve the microbial test result in next page if both dosage and procedures are compiled & followed strictly.
**Performed only if coliform is present
- We carry out all means to protect our operators who are performing the operations. Gas masks with canisters are used while carrying out fumigation/ aeration and also while monitoring gas concentration. We also adopt the following detecting devices to maintain both safety and service quality. TIF-XP-1A Leak Detector. This device can be used to detect any gas leakage from fumigation chambers. We’ll detect every corners especially doors of fumigation chamber to ensure no gas leakage after injection.
- XP3120 High Sensitivity Explosive Gas Detector. This device can be used to measure the gas residue after degas.