TY - JOUR T1 - Investigation of the Possibility of Spoilage of Mayonnaise Sauce Upon Storage in Large Plastic Containers at High Temperatures TT - بررسی امکان فساد سس مایونز در شرایط نگه‌داری در دمای بالا و در بسته‌های بزرگ پلاستیکی JF - JCPP JO - JCPP VL - 11 IS - 40 UR - http://jcpp.iut.ac.ir/article-1-706-en.html Y1 - 2007 SP - 299 EP - 315 KW - Mayonnaise sauce KW - Storage conditions KW - Spoilage KW - Large plastic containers. N2 - Mayonnaise sauce is a nutritious food product with high caloric content, which is usually incorporated into other products as an ingredient. The product should be produced under hygienic conditions to avoid its physical and chemical deterioration along with microbial spoilage, which mostly happens due to the lack of thermal treatment. Mayonnaise is often stored for long periods at room temperature in large plastic containers before consumption. To carry out the investigation, samples of the sauce in large plastic containers and glass jars were obtained directly from a commercial producer. After preliminary quality examinations, they were allocated into 3 lots and stored at 5, 25 or 40oC for up to 6 months. They were then subjected to physical, chemical, microbiological and organoleptic tests at monthly intervals. The results showed no significant microbial growth even when kept at higher temperatures. Significant chemical changes (autoxidation), however, occurred in both containers at temperatures close to 40oC. Organoleptic examinations revealed significant changes, especially in color and emulsion stability, which were more evidenced for those stored at higher temperature. It was concluded that the storage of mayonnaise sauce in large plastic containers at higher temperatures should be avoided mostly due to deterioration through physical, chemical and organoleptic changes of the sauce. M3 ER -