This research presents the processing of fresh guava into guava juice product. to be kept for consumption and distribution in the local area It is an alternative career path that helps rural farmers earn more. and create additional careers for the family But farmers still lack the correct technology tools and processing methods in each production process. Therefore there was a problem of insufficient cleanliness taking a lot of time resulting in unacceptable quality and the production is low the postharvest engineering research group has conducted research to find suitable guava juicer. This study is based on working principles of food processing equipment in general use. Come as a guideline to develop improve and create prototypes. The original guava juicer was a grater roller squeezer. There is a guava-sized subsystem consisting of a sub-chamber with grated rollers and the waste water barrier system consists of a juice sieve chamber a waste separation room a spiral conveyer and a sweeper set. various parts that come in contact with the guava juice is made of stainless steel The power source uses a 1-horsepower electric motor a single-phase electrical system a voltage of 220 volts. The machine has the ability to block water at a rate of 250 kg / hour. The juice obtained must be filtered out again with a centrifugal bag filter capable of filtering water at a rate of 50 liters/hour. The prototype guava juice machine costs 40000 baht and the centrifugal filter bag costs 5000 baht. With just one such machine each of these machines can produce 28000 liters of guava juice/year (112000 bottles a year) able to get a return in 0.08 years with an average processing cost of 4.48 baht/bottle which is appropriate in engineering economics. In investment use a ready-to-drink guava juice machine. Fresh guava ingredients are available throughout the year and have 200 business days/year.

Bakery Products Development from the Banana Pseudo-stems and Waste from Dried Banana Production at Ban Bang Ta Chom Community Enterprise Sing Buri Province for Sustainable Commerce. Research on bakery product development from paprika and bananas in Production of Dried Banana of Bang Ta Chom Housewife Community Enterprise Group Sing Buri province for sustainable commercialization in order to: 1. Develop bakery products from 4 types of Banana Pseudo-stems and Waste 2. study the formulas and production processes of bakery products from Banana Pseudo-stems and Waste 3. study the consumer test of bakery products from 4 types of Banana Pseudo-stems and Waste and 4. To transfer technology Little Bakery products from Banana Pseudo-stems and Waste then bring the shelf life in conditions ranging from 0-10 days and compare the physical properties. Chemical and microorganisms such as pH value color measurement and total number of microorganisms found that Khanom Jeen noodles stored in modified atmosphere conditions have longer shelf life than those stored. At normal atmospheric conditions and vacuum conditions. Chemical analysis results showed that the bakery products decreased their pH over time. With values between 4.31 ± 0.00 and 2.99 ± 0.01 and bakery products Stored at 100% carbon dioxide (CO2) modified atmosphere packed in a sealed nylon / PET vacuum plastic bag. Store at room temperature. Can be stored for up to 10 days and found that the total number of microbes increased when the storage life is longer But not over the standard of community products so the products are safe and not harmful to consumers. Consumer test results show that consumers like and are interested in buying bakery products that use 100 percent carbon dioxide (CO2) at 75 percent.