Indonesia is a tropical country rich in fruits. The climate in Indonesia allows different types of fruits grow and develop. But unfortunately, there are still many people who considered paltry local fruits and prefer fruit imports because the packaging is more attractive and seems to have better quality even though it costs more expensive. Fruits and vegetables are important commodities in our daily lives because of much-needed food in the menu as the main source of vitamins, minerals and fiber nutrition. Need fruits and vegetables will increase in line with increasing population and rising income and education community. Indonesia is a major producer of fruits that have a bright prospect for export as well as domestic market. Until now, the demand for fresh fruit always can not be fulfilled. This is due to several factors, one of which is the nature of the fruit that is not durable, consequently becomes a problem at the time of delivery. 2 bananas is one of the most plentiful crop in Indonesia. Banana plants in Indonesia can thrive both in the Highlands and the lowlands, from the temperate wet climates to dry. Its fruit at any time we can find for not hanging with the season (Satuhu and Alwi, 2004). Very good banana quality is determined by the age level of fruit and insubstantial. The level is measured on the basis of age age fruit, while a good appearance is obtained from a good post-harvest handling. In addition, a good quality is an absolute requirement that must be met when bananas will be marketed overseas. Banana crop production in Indonesia is quite large. In 2005 the production reached 5,177,608 tons with a total area harvested 21528 101,465 Ha. While in 2009 the production reached 6,373,533 tons with an area of 119 acres of harvest. 018 Hectares (Moa, 2008). Pisang Muli is one of the many types of bananas produced in the province of Lampung. Pisang Muli belongs to the Musaceae tribe and came from the Southeast Asian region. But the current crop of bananas Muli has been widespread in tropical climates such as Africa (Madagascar), South America, and Central America. 3 banana Demand increasing because Muli start tend to consume fresh fruit for health reasons. Banana Muli highly preferred public because it tastes sweet, fragrant aroma and nourishing. But the banana fruit Muli from Indonesia hasn’t been able to play a role as a real reliable export commodities. The barriers are one of the possibilities is the handling of inappropriate pascapanen so bananas Muli Indonesia did not yet have the competitiveness in the international market. Fruits have a short shelf life in relation to the physiological reaction acceleration-acceleration such as respiration. Injured former stripping and cutting cause increased respiration rate resulting in a decline in quality and short shelf life (Shewfelt, 1987). Pisang Muli, same as fruit and vegetable in General, will be retained and other metabolic respiration process after it is harvested. During this process make issued CO2 and water, as well as consume O2 existing in the vicinity. In addition, the freshness of the fruit banana Muli not stand long after harvest. Apparition or manifestation of the fruit of very easy once declining quality. The skin of the fruit is yellow to brownish easy greeny, then black, and finally dry out. The quality of the fruit would soon degenerate in a few days so that his performances became less attractive. 4 maturity of fruit is a fruit-stages of development before it reaches the stage of great setback due (senescense). Respirasinya high rate of fruit are generally quicker, while the damaged fruit that has a low respiration rate have a longer shelf life. Inhibition of respiration, this can be done if the known factors that affected it. The external factor is one of the factors that affect the rate of respiration to temperature, namely ethylene, oxygen, carbon dioxide, water vapor, a growth regulator substances and damage fruit (Pantastico, 1989). Therefore, the need for proper handling of the pascapanen efforts so that the marketing of banana fruit Muli it can be better. To make banana a Muli high selling power then needed an outcome a quality product and is not easily broken. One way to slow down the process damages the banana Muli is with storage at low temperature combined with the technique of dynamic air-CO2 storage. Dynamic air-CO2 storage is a storage technique, where the air and carbon dioxide (CO2) concentration is set in such a way, so that the obtained equilibrium concentrations that can extend the shelf life of the fruit of the banana. Based on the background of the authors try researching on “chemical changes and save the Old Banana Muli on Dynamic Air-CO2 Storage”. 5 b. research objectives this research aims to know the influence of storage temperatures and composition of air-CO2 against chemical changes and shelf life of the fruit banana Muli on dynamic air-CO2 storage. C. benefits of research 1. Can provide information in the handling of banana fruit pascapanen Muli by performing dynamic air-CO2 storage to extend the shelf life of the fruit banana Muli. 2. Provide the information basis for the development of further research on the air dynamic storage-CO2.